NORION SOUNDI KOIEZEBUE ESCAEMENT REPORT 32

1983 UNALAKLEET RIVER ESCAPEMENT PROJECT

SALMON ESCAPEMENT REPORT 32

Compiled by Charles Lean Don Peterson

Alaska Department of Fish and Game Division of Commercial Fisheries

Nome Alaska 99762

CONTENTS

List of Figures bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull i

List of Tables iii Introduction 1

Methods bullbullbullbullbullbull 2

Project Deployment middot 2 Sonar bullbullbullbullbullbullbullbull 2 Test Fishing bullbullbull middot 5 Counting Towers bullbullbullbullbullbullbullbullbull middot 6 Drift SetsBeach Seines 7

bull bullbullbullbullbull bull bull s bull bullbullbullbullbullbullbullbullbullbullbullRiver Surveys bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 7Subsistence Survey bullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 7

Results bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull middot 8

Subsistence Survey middot middot 8 Sonar bullbullbullbullbull 8 Test Fishing bullbullbullbullbullbullbullbullbullbullbullbull middot 9 Age Sex and Size Composition of Test Net Catches bullbullbull l~ Counting Towers bullbullbullbullbullbullbullbullbullbullbullbull bull bull 10 Drift SetsBeach Seines l~ River SurveysAerial Surveys bullbullbullbull 11 King Salmon Sport Fish Survey middot 11

Discussion 11

Conclusion 13

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LIST OF FIGURES Page

Figure 1 Unalakleet Escapement Project bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 14

Figure 2 Sonar Site Schematic bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 15

Figure 3 Unalakleet King Salmon Subsistence Survey 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 16

Figure 4A Specie Apportionment King Salmon Unalakleet Sonar 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 17

Figure 4B Specie Apportionment Coho Salmon Unalakleet Sonar 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 18

Figure 4C Specie Apportionment Pink Sa1monr Unalakleet Sonar 1983 bullbullbullbullbullbullbullbullbullbull ~ bullbullbullbullbullbullbullbullbullbullbullbullbull 19

Figure 4D Specie Apportionment Chum Salmon Unalakleet Sonar 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 2~

Figure 5 Specie Apportionment Unalakleet Sonar 1983 bullbull 21

Figure 6 Sector Distribution of Counts Unalakleet Sonar 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 22

Figure 7 Hourly Distribution of Counts Unalakleet Sonar 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 23

Figure 8 Unalakleet River Test Fishing Daily King CPUE in 8 14 Mesh 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 24

Figure 9 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 Mesh 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 25

Figure 1~ Unalakleet River Test Fishing Daily Coho CPUE in 5 78 Mesh 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 26

Figure 11 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 Mesh 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 27

Figure 12 Unalakleet River Test Fishing Daily Pink CPUE in 4 Mesh 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 28

Figure 13 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 Mesh 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 29

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Page Figure 14 Unalakleet River Test Fishing Daily CPUE in

5 14 and 5 78 Mesh 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 3~

Figure 15 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 14 and 5 78 Mesh 1983 bullbullbullbullbull 31

Figure 16 Unalakleet River Test Fishing Catch Proportions1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 32

Figure 17 Unalakleet Area Temperatures 1983 bullbullbullbullbullbullbullbullbullbullbullbull 33

Figure 18 Unalakleet River Turbidity and Depth 1983 bullbullbullbull 34

Figure 19 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 Mesh 1981-1983 bullbullbullbullbullbullbullbullbullbullbull 35

Figure 2~ middotUna1ak1eet River Test Fishing Cuciu1ative Chum CPUE in 5 78 Mesh 1981-1983 bullbullbullbullbullbullbullbullbullbullbull 36

Figure 21 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 Mesh 1981-1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 37

Figure 22 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 Mesh 1981-1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 38

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LIST OF TABLES

Table 1 Page

Unalakleet River Subsistence King Salmon Index 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 39

Table 2 Unalakleet River Final Sonar Counts 1983 bullbullbullbullbull 40

Table 3A Unalakleet River Species Apportionment by Test Period - King Salmon 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 42

Table 3B Unalakleet River Species Apportionment by Test Period - Coho Salmon 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 43

Table 3C

Table 3D

Unalakleet River Species Apportionment by Test Period - Pink Salmon 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 44

Unalakleet River Species Apportionment by Test Period - Chum Salmon 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 45

Table 4 Unalakleet River Test Net Proportions by Sample Period 1983 (selective CPUE) bullbullbullbullbullbullbullbullbullbull 46

Table SA Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983 bullbullbullbullbull 48

Table 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983 bullbullbull 49

Table 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983 bullbull 5~

Table 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 51

Table 6A Unalakleet River Sonar Site Drift Sets 5 14 Mesh 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbull 53

Table 6B Unalakleet River Sonar Site Beach Seines 1983 bullbullbullbullbullbullbullbullbull ~ 53

Table 7 Age Sex and Size Composition of Norton Sound King Salmon Unalakleet River Catch Sample Sport Catch and Spawning Surveys 1983 bullbullbullbullbullbullbullbull 54

Table 8A Age Sex and Size Composition of Norton Sound King Salmon Unalakleet River Test Net Sample 1983 bullbullbullbullbullbullbullbull 55

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Page Table 8B Age Sex and Size Composition of Norton Sound

Coho Salmon Unalakleet River Test Net Sample 5 14n and 57811 Gear 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 56

Table 8C Age Sex and Size Composition of Norton Sound Chum Salmon Unalakleet River Test Net 5 1 4 n and 5 7 8 Gea r 19 8 3 bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull 5 8

Table 9A Age Sex and Size Composition of Norton Sound King Salmon Unalakleet Commercial Catch Sample 1983 bullbullbullbullbullbull 61

Table 9B Age Sex and Size Composition of Norton Sound Sockeye Salmon Unalakleet Test Net Sample 5 78 11 5 14 n 4n and Variable Mesh Nets 1 98 3 bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull e $ bull bull bull bull bull bull bull bull bull bull bull 6 2

Table 9C Age Sex and Size Composition of Norton Sound Coho Salmon Unalakleet Commercial Catch Sample 1983 bullbullbullbullbullbullbullbull 63

Table 9D Age Sex and Size Composition of Norton Sound Chum Salmon Unalakleet Commercial Catch Sample 1983 bullbullbullbullbullbullbullbullbullbullbull 64

Appendix Table lAo Unalakleet River Test Net King Salmon Catches 1981-1983 8 1411 Mesh bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 65

Appendix Table lB Unalakleet River Test Net King Salmon Catches 1982-1983 5 Gear bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 67

Appendix Table lC Unalakleet River Test Net Coho Salmon Catches 1981-1983 5 78 n Mesh bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 68

Appendix Table ID Unalakleet River Test Net Pink Salmon Catches 1981-1983 4 n Me sh bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 70

Appendix Table IE Unalakleet River Test Net Chum Salmon Catches 1981-1983 5 78 Mesh bullbullbullbullbullbullbullbull bull bullbullbullbullbullbullbullbullbullbullbullbullbullbull 72

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INTRODUCTION

The Unalakleet River empties into Norton Sound approximately 130 miles southeast of Nome is approximately 130 miles in length and drains an area of 1087 square miles The Unalakleet River flows from the Nulato hills westward to the town of Unalakleet on the Bering Sea coast Five major tributaries comprise the river all of which support spawning salmon

The town of Unalakleet is situated at the mouth of the Unalakleet River the most important salmon producing river in Norton ~ound Historically the people of the area have depended on the salmon runs for their liveli~ood first as food for themselves and their dogs and more recently as the basis of their cash economy

Attempts to assess salmon escapement to the system have been made annually by aerial stream surveys counting towers on the North River in 1973 and 1974 and on the Chirosky River during 1975 and 1976 Weather and water clarity have often limited these enumeration efforts but escapement estimates have ranged as high as 1477 king (1977) 28600 churn (1978) 491706 pink (1978) and 1184 coho salmon (1980) not including major tributaries

A salmon subsistence survey is conducted by the Commercial Fisheries Division each year in Unalakleet Results have indicated that sUbsistence catch averages have been increasing in recent years The recent five-year average 1978 to 1982 subsistence salmon catches were 922 king 4694 coho 13019 pink and 3840 chum salmon Coho and pink salmon catches have shown the greatest increases due largely to increased returns of these species

Commercial catches in the Unalakleet subdistrict have also increased due to increased effort better technology and the increased returns of coho and pink salmon The recent five-year average (1978-1982) commercial catch for the Unalakleet subdistrict is 5629 king 28427 coho 131016 pink and 43086 chum salmon In 1982 the average commercial fisherman received approximately $6000 from the sale of salmon

Because of the importance of the commercial and subsistence

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fisheries and the problems of estimating escapement in this subdistrict side-scanning sonar was installed in 1982 in the Unalakleet River in hopes of gaining a more accurate estimate of escapement and at the very least a more consistent index of salmon migration

A test fishing program was in operation in 1981 in the lower four miles of the Unalakleet River Indices from this study were instrumental in helping the area biologist set some commercial fishing periods In 1982 sonar counts proved useful as an index of the coho salmon escapement and were used by the area biologist in extending the coho fishery

A number of problems affecting sonar counts became more apparent during the 1983 season These problems brought on by low river velocity (13 to 17 fps) and tidal f1uctuationi included milling salmon and allocating counts to five different fish classifications

With increased harvest effort on the chinook population a limited sport fish survey was begun

This report presents the results of the Unalakleet sonar projects second year of operation and comparison of test fishing indices from 1981 to 1983

METHODS

Project Deployment

Supplies and equipment were on-site and camp construction was completed on May 28 Both north and south bank counters were in operation on June 4 Sonar counter operation ceased on September 4 91 days after counting was initiated By September 6 the sonar camp had been dismantled and the equipment stored for the winter

Test fishing began on May 27 and ended on September 23

Sonar

The Electrodynamics Division of the Bendix Corporation developed a side- scanning hydroacoustic counter during the 1970s capable of detecting and counting salmon migrating along the banks of tributary streams The side-scan sonar counter is designed to transmit a sonic beam along a 60 foot aluminum tube or substrate

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Echoes from fish passing through the beam are reflected to the transducer The systems electronics interpret the strength and number of the echoes and tally fish counts

Two Bendix side-scan counters 1981 models were used on the Unalakleet River The respective 60-foot tubular aluminum substrates were deployed from opposite banks of the Unalakleet River Both substrates were positioned so there was at least two feet of water over the sonar beam that is projected immediately above the substrate that is two feet over the transducer housing and seven feet over the target end of the substrate It was found that three feet of water was needed as a buffer to eliminate debris counts due to wind ripples flotsam and sudden water level changes A small weir _ was placed to prevent fish passage inshore from the transducer on both sides of the riverThe substrates were not located directly opposite each other The north bank substrate was located 400 feet upstream from the south bank substrate which was placed in a nearly ideal river bottom profile Unfortunately mud shallows were opposite the south bank During the season fish behavior necessitated movement of the north bank substrate to a site 300 feet downstream of the south bank substrate

The river width at this site is approximately 200 feet The deepest channel is located about 80 feet from shore at the north bank substrate and about 100 feet from shore at the south bank substrate Although one-third of the river is isonified by the sonar beams if fish follow a depth contour then more than two-thirds of the possible fish paths would be covered by the sonar counters

The substrates were moved several times during the summer because of water level changes or for cleaning The substrates were guyed to two dead men each in the form of buried logs held in place with fence posts Stainless steel aircraft cable fastened to each end of the substrate was attached to respective dead men on shore

The cables were roughly parallel and adjusted to hold the substrate perpendicular to shore The inshore cable was long enough to allow the substrate to remain perpendicular to shore even though it might be moved 15 feet from shore The easiest method of movement of the substrate was to use the hydrodynamic shape of the substrate to raise itself and push against the substrate with a handy man jack The inshore footing could then be relocated with a minimum of

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effort

Although the current at the sonar site was insufficient to raise the tube to the surface it did help in pulling it up to a point where it could be cleaned

Calibration (a comparison of oscilloscope fish counts and sonar fish counts) was scheduled four times daily on both banks The magnitude of the fish milling problem compounded by slow fish passage made this schedule impractical much of the summer Calibration was attempted when usable results seemed impossible it was not attempted at extreme rates of fish passage Calibration was done by comparing echoes on a Tektronix 221 oscilloscope with counts of the sonar counter Salmon passing through the sonar beam produce a distinctive oscilloscope trace A count of 100 fish within 30 minutes the maximum calibration period was required before resetting the sonar fish velocity controls

agreement = Sonar computer count Oscilloscope count

The agreement was then used to adjust the daily counts Agreement of less than 1 indicates the sonar was undercounting and greater than 1 indicates overcounting

When the count agreement varied more than 15 then the following equation was used to derive a new fish velocity

agreement x existing velocity = new velocity

Milling fish became a problem on June 28 on the north bank when slow migrating and milling pink salmon oscars started riding the substrate turbulence wave Based on counting tower observations it was determined that all sixteen sectors were affected On July 1 and 2 the substrate was moved approximately 700 feet downstream to the base of a small cliff with somewhat faster water velocity Pink salmon began riding the substrate at the new site within hours Oscars were not a problem on the south bank during this time therefore in order to estimate the passage on the north bank the average hourly passage rate (percent per hour of the daily total) of the preceding three day period of the south bank was used to calculate daily totals for the

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north bank based upon hours which were not apparently effected by oscars

Total of Preceding 3-day valid hourly sum of daily

Daily total--North = counts--north x counts--South Total of corresponding hourly counts for preceding 3 days--south

After two weeks of attempting to deal with milling fish the following policy was decided on The sonar beam was raised slightly so that a strong target was seen in the four degree mode but a decrease in target strength was barely apparent in the two degree mode The offshore end of the substrate was moved middotfive feet downstream from the perpendicular placement used earlier The beam was extended as far as possible beyond the target These measures seemed to eliminate fish avoidance of the substrate as a problem

Other milling problems were not satisfactorily resolved Salmon moving downstream were not counted by the sonar but those same fish moving upstream could be counted by the sonar It was decided to invalidate an hourly count if milling fish were observed from a tower or oscilloscope or if sonar criteria were not met Disqualifying sonar criteria were hourly debris checks or a large fish count over 15 The large fish count indicated fish moving over the substrate in a tight school which was characteristic of milling behavior King salmon in the Unalakleet did not seem to reflect a long enough signal to register as large fish however two or three small salmon could register if they were close to the same distance from the transducer and spaced in an overlapping manner

Records of changes in counter settings river conditions and other unusual occurrences were also used in adjusting daily sonar counts

The large fish counter on the 1981 model sonar counter was ignored except as an index of milling fish

Test Fishing

The same test fishing site as in 1981 and 1982 was used during the 1983 season

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The ten fathom 8 14 gillnet was set from May 27 to May 31 A twenty fathom 8 14 gillnet was set on June 1 and fished until June 4 From June 5 to September 4 the period of sonar operation a rotating schedule of twelve hour time blocks over a period of three days was used The nets used included

1 20 fm 8 14 mesh 2 25 fm 5 14 mesh (June 5-August l025 fm 5 78

mesh (August II-September 4) 3 25 fm 4 mesh 4 15 fm variable mesh

The 25 fm 5 78 mesh gillnet was fished from September 5 to September 25 The 8 14 mesh net and the v~riable mesh net were fished concurrently The three-day rotation schedule allowed each net to be fished during one 12-hour high tidedaylight period and one 12-hour low tidenight period Nets were rotated at 0900 and 2HJ0 daily The 8 14 mesh net was removed from the rotation on July 21 because the chinook migration was completed

The CPUE (catch100 fm-hr) was calculated for the two most efficient nets for each species to be used in apportioning sonar counts These CPUEs for chinook coho pink chum and other species presumably detectable by sonar were totaled and the species CPUE divided by the total CPUE for all species to give the percent of the periods sonar counts to each specie The seventh day of the week was apportioned by using the previous 3-day proportions for one half of the counts and the following 3-day proportions for the second half of the counts

Test net data (Tables 5A 5B 5C and 5D) was calculated for the single most effective net for each species for separate analys is

Weights lengths and scale samples were taken from all chinook coho and chum captured Pink salmon were counted only Tissue samples were taken from test net chinook salmon for electrophoretic studies coordinated by the Stock Separation Section of the Commercial Fisheries Division

Counting Towers

Counting towers were erected immediately adjacent to the

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onshore end of each substrate (Figure 2) As in 1982 the use of visual tower counts for comparison with sonar counts could not be relied upon due to river width surface disturbances etc however several short comparisons were possible The towers proved invaluable in determining the presence of moribund fish debris passage presence of oscars fish swimming behavior etc The 1983 low river level and generally less turbidity as compared to 1982 allowed more rapid and concrete identification of the milling fish Without use of the tower the severity of the milling fish problem may not have been discovered

Drift SetsBeach Seines

Drift sets and beach seines were done for comparison with test net species apportionment and to determine fish passage beyond the sonar counting range Drjft sets were accomplished by drifting a 25 fm 5 14 gillnet perpendicular to the shore The 25 fm net allowed the major portion of the river to be fished thus only one drift was done per set as opposed to 1982 when a drift set was done near each bank Set durations ranged from 5 to 17 minutes dependent upon boat traffic wind conditions etc Drift sets were done on July 19 23 and 27 and August 3 22 23 26 and 31

Beach seines were accomplished by using a 25 fm 3 mesh seine immediately downstream of the south bank substrate Shoreline conditions prevented se1n1ng near either north bank site Beach seines on the south bank were done on July 20 25 and 28 and August 1 and 29 Beach Unalakleet River were done on August 4 and levels prevented seining from August 4 to

seines 24

24

at High

mile 12 water

Riyer Surveys

Two river surveys were attempted during 1983 A jet boat was taken up the North River on July 29 This proved to be early for carcass sampling but weather and equipment problems prevented a later survey

A float trip of the Old Woman and upper Main River was also made A plane landing mishap greatly reduced the scope of this trip Weather prevented any follow up work

Subsistence Surveys

A daily survey of three to five sUbsistence fishermen is

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made from the time the first king salman is caught early in June through the remainder of that month These people must be trustworthy conscientious about checking their nets and fairly successful The average daily catch is compared to the previous day to develope the annual trend and the total catches and the annual trend is compared to past years Commercial catch and effort data and the up-river test net data are used in conjuction with the subsistence catch to anticipate strategies

future catches and management

During late September made of Unalakleet

an The

extensive door to door survey is Annual Management Report covers

subsistence surveys in detail

RESULTS

~istence Survey

The Unalakleet subsistence survey made in late September interviewed 74 subsistence fishermen 68 of whom fished in the river and 17 who fished in the ocean The catch was predominantly from the river with 1480 king 6311 coho 13458 pink and 4124 chum salmon reported The ocean subsistence catch was 388 king 577 coho 350 pink and 277 chum salmon

The mean chinook salmon catch per fisherman peaked on June 16 This compares with July 3 in 1982 and June 19-22 in 1981 All subsistence fishermen surveyed in 1983 were fishing within one mile of the river mouth

Chinook subsistence survey results are presented in Table 1 and Figure 3 As in 1981 and 1982 the variances in nets fishing times and net locations call for calculation of mean catch per fisherman as opposed to catch per unit effort

Sonar

During the period from June 4 to September 4 the final sonar count was 322494 148465 (460) counts were tallied on the south bank and 174029 (540) counts were tallied on the north bank

The daily sonar counts (Table 2) were adjusted by the test net proportions (Table 4) to give the following escapement estimates for the period June to September 4

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Species Total Count LQf Total

Chinook 2790 09 Coho 17013 53 Pink 91881 285 Chum 58273 181 Other 152537 AL2

322494 1000

Tables 3A 3B 3C 3D and 4D present this data by 3-day sample period Based on discussions with Al Menin and Dave Gaudet about the ability of sonar counters to discriminate between various target shapes and sizes any fish two and one half pounds or laterally compressed fish ~f one pound or larger could be counted by a sonar calibrated for pink salmon Fish other than salmon considered countable by the sonar counter included arctic char grayling burbot and broad humpback and Alaska whitefish

Peak adjusted apportioned sonar counts were on June 23 for chinook August 21 for coho July 18 for pink and July 25 for chum salmon (Tables 3A 3B 3C and 3D Figures 4A 4B 4C and 4D)

Representative passage rates on the south bank by sector and by hour for July 3-5 and August 21-23 are presented in Figures 6 and 7 These periods were chosen because of minimal adjustments to raw counts north bank counts are not presented due to lack of relatively clean data for those periods

Test Fishing

A total of 19 chinook (74 male - 26 female) 294 coho (61 male 39 female) 1156 pink (52 male - 48 female) and 915 chum (54 male - 46 female) was captured from May 27 to September 23 The fish were sampled and delivered to Hartha Nanouk a local subsistence fisherman as per agreement for the use of her traditional set-net site

Based on the single most effective test net CPUE the chinook migration did not peak as such but rather showed most consistent catches on June 22 and 23 coho migration peaked from August 10-14 pinks from July 18-22 and chum on July 13

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Comparisons of daily CPUE and cumulative CPUE for all salmon species are presented in Tables SA 58 5C and 5D and Figures 8 thru 15 Of interest although not as useful for annual comparison due to different test net methods net mesh sizes fishing time etc the actual fish caught from 1981 to 1983 are

~ 1982 un 41 chinook 39 chinook 39 chinook

107 coho 310 coho 294 coho 1463 pink 5114 pink 1156 pink

722 chum 375 chum 915 chum

f

Age Sex and Size Composition of Test Net Catches

An age analysis of scales collected during the project indicated the following age compositions king salmon all gear sizes (4-2131 5-2 22~ 5-3816-23217-2 3) coho salmon 5 14 and 5 78 gear (3-2 051 4-3 981 4-4 051 5-4 l) chum salmon 5 14 and 5 78 gear (3-1 21 4-1 611 5-1 37) Tables 7 thru 9D show the age composition of the various species broken down by date and the mesh sizes used during the project

Counting Towers

As cited visual tower counts could not be made on the Unalakleet River due to river width surface disturbances turbidity etc However visual observations proved invaluable in identifying spawning behavior etc and resulted in the downstream relocation of the north bank substrate and development of the method used to adjust north bank sonar counts

Drift SetsBeach Seines

Tables 6A and 68 present the results of drift sets and beach seines respectively Drift set results indicate that the portion of the river not isonified was not used by migrating salmon ie the species most countable coho pink and chum salmon would seem to follow the banks and were counted by the side-scan sonar

Beach seines proved useful in verifying the high presence of

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species other than salmon the relative abundance of coho salmon in August and the presence of spawning churn salmon in the south bank substrate area

Riyer SurveysAerial SurVeys

On July 29th 32 miles of the North River were surveyed by a two-person crew for the purpose of counting live chinook and sampling chinook carcasses A total of 166 live chinook were counted and 3 chinook carcasses were sampled with approximately half of the chinook counted between mile 25 and mile 32

Originally the Old Woman River survey was to be a six-day trip Due to the damage the plane suffered dropping the first crew member off the second member and support gear was not av~ilable for the survey as planned~ The survey of the Old Woman River August 6-8 counted 60 king salmon but only four samples were collected Weather prevented the survey of the main river

King Salmon Spo rt Fish Survey

A sport fishing lodge on the Unalakleet River is responsible for the majority of the sport fishing effort Periodic surveying of lodge personnel indicates that a fair quantity of king salmon are harvested by sport fishing A quantitative survey was not done however due to limited time available A total of 43 chinook was sampled from sport fishing catches

DISCUSSION

River levels were lower than normal during the spring of 1983 due to the lack of snow accumulation the previous winter The Unalakleet River cleared early and became quite low during late June and early July The low water allowed the counting towers at the sonar site to be used during calm survey days which wasnt possible during 1982

Tower observations made as early as June 28 showed serious milling problems at the north bank sonar site The sonar was moved to a new site on July 2 Milling fish were still a considerable problem at the new site but about half the hourly count were considered acceptable during mid-July Milling salmon were a problem through most of the field season Milling salmon of all four species were observed

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during the latter half of each respective migration Pink salmon presented the worst problem and churn the least Unfortunately milling pinks invalidated the churn count since the two runs overlap Coho salmon exhibited some milling but an accurate evaluation of this problem was hampered by turbid water Milling coho became a problem after August 20

The milling observed from the towers was not apparent to the observer at the oscilloscope because of the overwhelming number of spikes present at that stage of the salmon migration During 1982 when tower observations were not possible the oscilloscope appeared to have an extraordinary number of spikes The large pink salmon count recorded in 1982 may have been an artifact of milling behavior that was unobservable then Commercial catch and test net catch statistics indicate a large pink salmon run f However it is likely fish milling over the substrate exaggerated the sonar count although without tower observations it can not be proven

Another problem observed during the 1983 field season was avoidance of the substrate by all fish species This problem was at its worst when water was low and clear Angling the substrate slightly downstream as it was after July 15 helped considerably By extending the sonar beam periodically it was determined that as visibility decreased so did avoidance

Species apportionment of the sonar count was done using test net catches Some of the problems encountered with the sampling scheme should be pointed out Test nets were assumed to sample the same portion of the river as the sonar Since three net lengths were used this seemed suspect Different species migrate at different depths The non-salmon species tend to migrate in shallow water near shore and generally the larger species migrate in deeper water nearer mid-stream Since only a IS-fathom net of the most efficient type for non-salmon species was fished in the preferred habitat for these fish it is likely that the calculated efficiency was too high The other test nets were longer and also sampled some preferred areas for the targeted species

The opposite case is true for king salmon The 8 14 net is 20 fathoms longS fathoms shorter than the other nets used on this project This net does not cover all of the area preferred by king salmon This means king salmon

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escapement is probably underestimated but the 20 fathom net samples an area further out than the sonar counter even with its beam extended So the number of king salmon counted by the sonar is over estimated King salmon make up such a small percentage of the total salmon run that counting errors are more significant than this apportionment error

Very few churn and pink salmon were caught in the offshore end of the nets It is assumed these long nets had very little effect on the sonar count species apportionment

CONCLUSION

The feasibility of counting salmon in the Unalakleet River using side-scanning sonar is unlikely due to milling fish and the inal1ility to accurately apportion the sonar count to the various fish species It is possible that a partial escapement count could be made further up river above one or more of the major tributaries to the system The new north bank sonar site that showed some improvement over the former site had two differences that seemed to affect salmon migration The current was faster over the substrate at the second site and the river gravels were less ideal spawning habitat The new site was located below a rock bluff on the outside of a river bend

There are two similar sites up river about ten miles where the current is faster and the bottom is even less conducive to spawning During the 1984 field season a comparison of the smoother running south bank site and these up-river sites could be made The best time to do this would be during August when only coho salmon are migrating The counter should be operating by August 15 prior to milling activity and maintained for a week to evaluate if milling salmon became apparent later after the migration peaked The south bank site could be used as a control for comparison to 1983

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Figure 1 Unalakleet Escapement Project

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Original Ninth Bank Sonar

Drift sets 5 minutes

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Figure 3Unalakleet Subsistence Survey 1983

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27 1 5 10 15 20 25 30

~ June

Figure 4A Specie apportionment king salmon Un-alakleet sonar 1983

~

25

-l20

c 1 5 III () III

11

10

5

I

J

27 31 5 10 15 20 25 30 5 10 15 20 25 31

June Ju Iy

Figure 4B Specie middotapp~~tionment coho salmon Unalakleet sonar 1983

30

25

co ~

20

1 t~

C $

u 1 5 CD a

10

5

5 10 15 20 25 31 5 10 15 20 25 31 5

Ju August Sept e

Figure 4C Specie apportionment pink salmon Unalakleet sonar 1983

1 6

1 5

14

1 3

12

1 1

c II U CII

Ashy

10

9

a

7

01 ~

6

5

4

3

2

1

1 5 10 1 5

June

2 O 25 30 5 10 15 20

Ju Iy

25 31 5 10 15 20

August

25 31 5 10

Septem

Figure 40 Species apportionment chum salmon Unalakleet sonar 1983

16

1 5

1 4

13

1 2

1 1

10

9 c 8GI U

GI middot7 A

6

5

4

3

2

1

~

o N

~

1 5 10 15 20 25 30 5 10 15 20 25 3 1 5 10 15 20 25 31 5 10

June Ju Iy August Sept e

Figure 5 Specie apportionment Unalakleet sonar 1983

50

4

40

35

c J 30 0 U

~ 0 25 0 c Q)

u ~

Q) 20a

15

10

5

o L-_lt---__

King Coho Pink Chum Misc

21

----

Figure 6 Sector distribution of counts Unalakleet sonar1983

35

30

25

c 20 G)

() G) 15

0

10

5

35

30

25 c G)

() 20

G)

0 15

10

5

( s ()u t h ban k )

July 3-5

~-2 4 6 8 1 0 1 2 1 4 1 6shy

Sector

August 21-23

2 4 6 8 10 12 14 16

Sector

22

Figure 7 Hourly distribution of counts Unalakleet sonar 1983

(south bank)

14

12

10

c 8 GI U ~

6

July 3-5

~GI

I =~ Q

4

2 0

2 4 6 8 10 12 14 1 6 18 20 22 24

TIme

9

8

7

6

5 c GI U ~ 4 GI

Q

3

2

August 21-23

1

0

2 4 6 8 10 12 14

TIme

16

23

18 20 22 24

Figure 8 Unalakleet River Test Fishing Daily King CPUE in 8 14 mesh 1983

10

9 N

8 shy

7 I 0 c 6E

n

l J I I

0 0 5 c (J 4 co 0

3

2

1

I I

27 1 5 10 15 20 25 1 5 10 15 20 25 31

~ June July

Figure 9 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1983bull

~

middot10

09 U N

I 08 0 c 07E I ()

- 06 E-0 0 05 shy~ () 04 ca - ()

03E I 0 02

01

27 1 5 10 15 2Q 25 1 5 10 15 20 25 31

June July

Figure 10 Unalakleet River Test Fishing Daily Coho CPUE in 5 78 mesh 1983

1

6

5

I 0

NI II I 0 t

E 4

0 0 c 3() cu 0

2

1

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sept U

Figure 11 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1983

200

175

150

I 0 c 125E I ()

E

r-shy-0 I I N 0 100 c ()-as ()

75E I 0

50

25

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sel ber

20

Figure 12 Unalakleet River Test Fishing Daily Pink CPUE in 4 mesh 1983

18

I

0) N

II

16

I ishy

14 J 0 t 12shyE 0 10 0 shys 8 () as

0 6 1 I V 4

2

~ I

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

--

Figure 13 Unalakleet River Test Fishing Cumulat ive Pink CPUE in 4 mesh 1983

10

9 01 N 8

J 0 J 7 E J 0 6 E- 50 ~

amp 4() ca

0 3 E J

0 2

1

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

Figure 14 Unalakleet River Test Fishing Daily CPUE in 5 14 amp 5 78 mesh 1983

14

13shy

12

11

10

9 J 0 8

I z shy-E 7 0 0 shys ~u aI 0

4 I

31

2

1

II

0 C1)I 11

I I I II

bull y AA(net changed to 5 78

AA A 11 I

~ I~ V ~

- I

VI

1 5 10 15 20- 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

cJune July August

Figure 15 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 14 amp 5 78 mesh 1983

It

5

--l C)

net changed to 5 78

~ 4 o

c E (J ~

3E o o c 2 u ~ -(J

E ~ (J 1

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 16 Unalakleet River Test Fishing Catch Proportions 1983

60

55

---- King50

__ Coho 45

P--Q Pink

40 __ Chum

I LU 35J D I 0

30 ICQ 0 25 I

N Cl0 20

c G)

15u G)

D

10

5 A 1 I

I 4 I

I I

3 lt

~

2

I I1 - I bull I

I ~ ~ ~ t -J ~~ - _

r

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 17 Unalakleet Area Temperatures 1983

18

16

14

12

til 10I

u-G) 80 CI) G) G) 6 C) G)

Q 4

2

C) C)

__ Air

0--0 River 2

0

-2

-4

---------~ ~

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August 5e

4

Figure 18 Unalakleet River Turbidity and Depth 1983

__ Secchi Reading

-t ()

II) G)-G)

3

iE 2

1

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August

~ 1 _ ~ r--- I shy I __ I 01 --shy

Figure 19 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1981-83

27 31 5

May

_1981

____ 1982

o 0 1983 11) C)

Changed to 5 78 mesh

I

t

~-~o-~ Q-O--Oolt)-(IQ-----l

--1

_10 15 20 25 30 5 10 15 20 25 31

June July

I I I

~

0 ~

r E ~

CJ shyE 0 0 I

shyr u-cu CJ

E ~

CJ

4

35

30

25

20

15

10

05

Figure 20 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 78 mesh 1981-83

5

4 lI 0

z

E lI 0 3 E-0 0 2 r CJ-cu 0

E lI 1 0

__1981 ~~

~ ___1982

a 01983 5 148 mesh from 65-810

_----shy-- 0 - -- C1) A - _ - ~

~ I

I

II I I I I I

I I

1

~ -

-

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 21 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 mesh- 1981-83

8

70

60

50

40 0

r 30E

0 20E-0 0 10 s= u 8 tV 0 6E 0 4

2

__1981 ____ 1982

_1983

shy--- -- shy--- shy J - -

I

I

C1- J

I

-----l---l ~--~r---------------r--

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 22 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1981-83

_1981

~ __ 1982

~1983

25

00I _ __ _ _ C)~ I __ _ I

I V o 20 rt I I

E I AshyI o E 15-o o z u 10 tU o E I o 5

I

1 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

July August 5

----------------------------------------------------------------

Table 1 Unalakleet River Subsistence King Salmon Index 1983

Number of Number of Date Fishermen Chinook Average

08 02 18 05 05 00 02 58 92 62 72 72 42 28 52 60 62 20 47 50 35 25 15

June 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Totals

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 4 4 4

4

3 1 7 2 2 o 1

23 37 25 29 29 17 11 21 24 25

6 14 15 14 H~

6

322

~

39

---------------------- ---------- --------------------------------------

----------------------------------------------------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983

Daily Proportion Cumu1 Prop Date South North Total of Total Cumulative of Total

64 7 23 30 1313131 313 013131 65 44 187 231 00137 261 01308 66 12 162 174 01305 435 01313 67 8 283 291 1313139 726 01322 68 0000 726 13022 69 3 221 224 013137 950 13029 610 26 245 271 131308 1221 13037 611 56 254 310 131310 1531 131347 612 44 736 780 013 24 2311 13071 613 64 1188 1252 01339 3563 01113 614 59 1752 1811 0056 5374 0166 615 97 844 941 01329 6315 0195 616 165 729 894 0028 7209 0223 617 151 i 604 1755 0054 8964 middot 0277 618 i ll 1524 1635 0051 10599 13328 619 175 2000 2175 0067 12774 13395 620 171 21320 2191 0068 14965 0463 621 220 1613 1833 0057 16798 0520 622 199 2065 2264 0070 19062 0590 623 362 21334 2396 0074 21458 13664 624 876 3403 4279 13133 25737 0797 625 1244 2023 3267- 0101 29004 0898 626 738 1601 2339 0073 31343 0971 627 573 3265 3838 0119 35181 1090 628 547 1868 2415 0075 37596 1165 629 528 4028 4556 0141 42152 1306 630 430 430 0013 42582 1319 71 240 240 01307 42822 1326 72 201 975 1176 0036 43998 1362 73 309 8842 9151 0284 53149 1646 74 475 6385 6860 0213 60009 1859 75 565 3342 3907 0121 63916 1980 76 1377 2094 3471 0108 67387 2088 77 1416 3173 4589 0142 71976 2230 78 1472 1420 2892 0090 74868 2320 79 2071 1452 3523 01113 78391 2430 710 3318 2434 5752 0178 84143 2608 711 2673 2866 5539 13172 89682 2780 712 1665 1747 3412 13106 93094 2886 713 21317 1951 3968 13123 97062 3009 714 2991 2664 5655 0175 102717 3184 715 2646 2548 5194 13161 107911 3345 716 2488 2886 5374 0167 113285 3512 717 1585 4063 5648 0175 118933 3687 718 3559 9326 12885 0400 131818 4087 719 2948 2398 5346 13166 137164 4253 720 1640 3330 4970 0154 142134 4407 721 2416 6420 8836 0274 150970 4681 722 3298 3298 0102 154268 4783 723 5007 5007 0155 159275 4938

40

--------------------------------------------------------------------

--------------------------------------------------------------------

-----------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983 (Continued)

Daily Proportion Cum Prop Date South North Total of Total Cumu1at i ve of Total

724 4005 7804 11809 0366 171084 5304 725 2453 3392 5845 0181 176929 5485 726 2166 12094 14260 0442 191189 5927 727 1914 4472 6386 0198 197575 6125 728 1603 3463 5066 0157 202641 6282 729 1251 1914 3165 0098 205806 6380 730 1710 2495 4205 en30 210011 6510 731 2542 1887 4429 0137 214440 6647 81 4479 2271 6750 0209 221190 6856 82 1103 1806 2909 0091 224099 6947 83 1719 942 2661 0083 226760 bull 7030 84 1519 2557 4076 0126 230836 7156 85 1259 1113 2372 0074 233208 7230 86 940 2189 3129 0097 236337 7327 87 1467 4354 5821 0180 242158 7507 88 2318 1584 3902 0121 246060 7628 89 2098 1505 3603 0112 249663 7740 810 2629 1517 4146 bull 0129 253809 7869 811 3753 1091 4844 0150 258653 8019 812 1489 523 2012 0062 260665 8081 813 744 353 1097 0034 261762 8386 814 981 981 bull 0030 262743 8145 815 2324 2324 0072 265067 8217 816 2638 2638 0082 267705 8299 817 2073 731 2804 0087 270509 8115 818 2244 675 2919 0091 273428 8477 819 3240 696 3936 0122 277364 8599 820 2363 503 2866 0089 280230 8688 821 6789 1111 7900 0245 288130 8933 822 6489 563 7052 0219 295182 9152 823 5077 298 5375 0167 300557 9319 824 2616 298 2914 0090 303471 9409 825 3933 412 4345 0135 307816 9544 826 1393 554 1947 0060 309763 9604 827 1203 463 1666 0052 311429 9656 828 1197 542 1739 0054 313168 9710 829 1244 221 1465 0045 314633 9755 830 1011 199 1210 0038 315843 9793 831 718 214 932 0029 316775 9822 91 1324 318 1642 0052 318417 9874 92 1362 307 1669 0052 320086 9926 93 1146 314 1460 0045 321546 9971 94 652 296 948 bull 0029 322494 10000

148465 174029 322494 10000

41

----------------------------------------------------------------------

-------------------------------------------------------------------- --

------

TABLE 3A Unalakleet River Species Apportionment by Test Period King Salmon 1983

3-Day App Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 76 0272 76 0272

69-612N 28 0100 104 0372

612N-615 461 1652 565 2024

616-619N 419 1502 984 3526

619N-622 170 0609 1154 4135

623-626N 722 2588 1876 6723

626N-629 264 0946 2140 7669

630-73N 103 0639 2243 8038

73N-76 188 0674 2431 8712

77-710N 0 0000 2431 8712

710N-713 0 0000 2431 8712

714-717N 267 0957 2698 9969

717N-720 0 0000 2698 9669

721-724N 92 0331 2790 1 0000

724N-727 0 0000 2790 10000

728-731N 0 0000 2790 1 0000

731N-83 0 0000 2790 1 0000

2790 10000

42

Dates

714-717N

717N-720

721-724N

724N-727

728-731N

731N-83

84-87N

87N-810

811-814N

814N-817

818-821N

821N-824

825-828N

828N-831

91-94

TABLE 3B Unalakleet River Species Apportionment by Test Period Coho Salmon

3-Day Count

583

338

436

550

2650

1174

793

1435

5074

1280

435

2265

171H3

1983

Proportion of Season Total

0000

0000

0000

0343

0199

0256

0323

1558

0690

0466

0843

2983

0752

0256

1331

Cumulative Count

583

921

1357

1907

4557

5731

6524

7959

13033

14313

14748

17013

Cumulative Proportion

0000

0000

0000

0343

0542

0798

1121

2679

3369

3835

4678

7661

8413

8669

10000

43

------------------------------------------------------------------

------------------------------------------------------------------

----- ------

TABLE 3C Unalakleet River Species Apportionment by Test Period Pink Salmon 1983

3-Day P roport ion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 0 0000

6l2N-615 0 0000

616-6l9N 97 0012

6l9N-622 332 0036

623-626N 1245 0136

626N-629 6624 0721

630-73N 3699 0403

73N-76 10762 1171

77-7l0N 7704 0838

710N-7l3 8529 0928

714-717N 9771 1063

717N-720 13845 1507

721-724N 11361 1236

724N-727 6544 0712

728-731N 3545 0386

731N-83 1628 0177

84-87N 1224 0133

87N-810 1777 0193

811-814N 802 0087

814N-817 561 0061

818-821N 533 0058

821N-824 8313 13091

825-828N 468 0051

828N-831 0 0000

91-94 0 0000

91881 10000

0 0000

0 0000

0 0000

97 0012

429 0048

1674 0184

8298 0905

11997 1308

22759 2479

30463 3317

38992 4245

48763 5308

62608 6815

73969 8051

80513 8763

84058 9149

85686 9326

86910 9459

88687 9652

89489 9739

90050 9800

90583 9858

91413 9949

91881 10000

91881 10000

91881 1 0000 44

------------------------------------------------------------------

------------ ------------------------------------------------------

----- ------

TABLE 3D Unalakleet River Species Apportionment by Test Period Chum Salmon 1983

3-Day Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 100 0017

612N-615 268 0046

616-619N 838 0144

619N-622 1180 0202

623-626N 2744 0471

626N-629 1569 0270

630-73N 796 0137

73N-76 2972 0510

77-710N 2068 0355

710N-713 2622 0450

714-717N 4133 0710

717N-720 5596 0960

721-724N 4978 0854

724N-727 8974 1540

728-731N 2241 0385

731N-83 2079 ~0357

84-87N 3009 0516

87N-810 2432 0417

811-814N 937 0161

814N-817 454 0078

818-821N 2584 0443

821N-824 2739 0470

825-828N 1783 0306

828N-831 765 0131

91-94 412 0070

58273 10000 45

0 0000

100 0017

368 0063

1206 0207

2386 0409

5130 0880

6699 1150

7495 1287 f

10467 1797

12535 2152

15157 2602

19290 3312

24886 4272

29864 5216

38838 6666

41079 7051

43158 7408

46167 7924

48559 8341

49536 8502

49990 8580

52574 9023

55313 9493

57096 9799

57861 9930

58273 1 0000

-------------------------------------------------------------

------------------------- ------------------------------------

TABLE 4 Unalakleet River Test Net Proportions by Sample Perio-d 1983 ( Selective CPUE)

Dates Chinook Coho Pink Chum Misc

64-68 105 00 00 895

69-612N 24 00 83 893

612N-615 1C~ 5 00 61 834

616-619N 78 18 156 748

619N-622 23 45 160 772

623-626N 65 112 247 576

626N-629 22 553 131 294

630-73N 16 576 124 284

73N-76 10 572 158 260

77-710N 00 555 149 296

710N-713 00 540 166 294

714-717N 14 00 513 217 256

717N-720 00 00 532 215 253

721-724N 04 00 493 216 287

724N-727 00 18 202 277 503

728-731N 00 23 242 153 582

731N-83 00 30 112 143 715

84-87N 44 98 241 617

87N-810 182 122 167 529

811-814N 139 95 111 655

814N-B17 96 68 55 7B1

B18-B21N 105 39 1B9 667

821N-824 263 43 142 552

825-B28N 145 53 202 600

828N-831 97 00 171 732

91-94 396 00 72 532

46

--------

--------

TABLE 4 Una1ak1et River Test Net Proportions 1983 ( Selective CPUE) (Continued)

Comparative Apportionment

Species Apportionment

Chinook 2790 Coho 17013 Pink 91881 Churn 58273

------shySubtotal 169957

Misc Species 152537 ------shy

Total 322494

Substrate Comparison -------------------shy

Bank Counts -----shy

South 148465 North 174029

------shy

Total 322494

Percent of Total Counts

09 53

285 181

5408

472

1000

Percent

460 540

1000

47

-------------------------------------------------------------------

TABLE 5A Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

May 27 28

21 5 482

13 13

1313

1313 21 5 697

13 13

1313

1313 30 240 0 013 937 0 00 31 246 2 41 1183 2 08

June 1 237 0 00 1420 2 07 2 3

256 585

13 13

013 bull 13 13

1676 2 261

2 2

6bull 13 4

5 6 8

160 120 middot 125

13 1

13 42 130

2 421 2541 2666

~ 2 3 3

bull 13 4 136 136

9 122 0 130 2788 3 05 11 117 00 2905 3 05 12 126 13 00 3031 3 05 13 117 1 43 3148 4 06 15 118 0 013 3266 4 136 16 116 1 43 3382 5 138 18 240 13 130 3622 5 07 19 121 0 00 3743 5 07 20 116 0 00 3859 5 136 22 118 1 42 3977 6 138 23 119 1 42 4196 7 08 25 240 0 013 4336 7 138 26 119 13 1313 4455 7 138 27 119 13 1313 4574 7 138 29 1213 13 130 4694 7 137 313 1213 13 00 4814 7 07

July 2 238 0 1313 51352 7 07 3 118 13 013 51713 7 07 4 118 1 42 5288 8 138 6 122 0 00 5410 8 07 7 116 13 00 5526 8 07

10 126 0 1313 5652 8 07 11 119 0 013 5771 8 07 13 116 13 130 5887 8 07 14 119 2 84 6006 10 07 17 122 0 00 6128 10 07 18 112 0 1313 6240 10 136 20 119 13 00 6359 10 06 21 112 0 013 6471 10 06

6471 10

48

------------------------------------------------------------------

------------------------------------------------------------------

TABLE 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983

Cum Cum Date Hours Catch CPUE Hours Catch CPUE

July 24 26

115 120 0 00

115 235

0 0

00

00 27 117 4 00 352 0 00 29 117 0 137 469 4 34 31 116 3 103 585 7 48

August 2 122 0 00 706 7 40 3 122 2 66 828 9 43 5 118 1 34 946 10 42 7 128 14 437 1074 24 89 9 257 14 218 1331 38 114

10 125 21 672 1456 59 162 12 13 middot- 0 00 1469 x 59 161 14 10 7 12 449 1576 71 180 16 122 2 66 1698 73 172 17 123 6 196 1821 79 174 19 118 1 34 1939 80 165 21 112 6 214 2051 86 168 23 120 3 100 217 1 89 164 24 115 2 70 2286 91 159 26 115 5 174 2401 96 160 28 119 0 00 2520 96 152 30 119 4 1 34 2639 100 152 31 117 1 34 2756 101 147

Sept 2 123 5 33 2879 106 147 4 479 15 125 3358 121 144 6 238 11 185 3596 132 147 7 237 5 84 3833 137 143 8 238 6 1 01 4071 143 141 9 242 10 1 65 4313 153 142

10 242 3 50 4555 156 137 11 242 2 33 4797 158 132 12 241 8 133 5038 166 132 14 227 14 247 5265 180 137 15 242 9 149 5507 189 137 16 210 3 57 5717 192 134 17 239 2 33 5956 194 130 18 230 2 35 6186 196 127 20 489 4 33 6675 200 120 21 24 3 50 6915 203 117 22 242 0 00 7157 203 113 23 234 1 17 7391 204 110

----shy

7391 204

Mesh size = 5 14 from 724 to 810

49

------------------------------------------------------------------

TABLE 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE ------~-----------------------------------------------------------June 16 122 1 33 122 1 33

17 118 0 bull 0 0 240 1 17 20 120 2 67 360 3 33 21 118 0 00 478 3 25 23 119 2 67 597 5 34 24 119 3 102 716 8 45 27 116 19 655 832 27 130 28 120 22 733 952 49 206 30 120 40 1333 1072 89 332

July 1 115 36 1252 1187 125 421 4 122 30 983 1309 155 474 5 114 47 1649 1423 202 568 7 118 30 1016 1541 232 602 8 120 shy 24 800 1661 -$ 256 616

11 122 42 1377 1783 298 669 12 120 29 967 1903 327 687 14 116 37 1276 2019 364 721 15 118 40 1356 2137 404 756 18 121 60 1976 2258 464 822 19 119 30 740 2377 494 831 21 125 61 1952 2502 555 887 22 118 25 847 2627 580 883 25 122 16 525 2749 596 867 26 116 15 517 2865 611 853 28 122 28 918 2987 639 856 29 117 11 376 3104 650 838

August 1 120 7 233 3224 657 815 2 119 9 303 3345 666 796 4 120 3 100 3465 669 772 5 118 5 170 3583 674 752 8 114 7 245 3697 681 734

11 123 7 337 3 82 0 688 720 15 118 2 68 3938 690 701 16 113 5 177 4051 695 686 18 98 3 122 4149 698 673 19 119 1 34 4268 699 655 22 112 0 00 4380 699 638 23 115 0 00 4495 699 622 25 120 2 66 4615 701 606 26 112 1 36 4727 702 594 29 116 0 00 4843 702 580 30 11 5 0 00 4958 702 566

Sept 1 115 0 00 5079 702 553 2 112 0 00 5191 702 541

----shy5079 702

50

-----------------------------------------------------------------

------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

June 5 73 0 00 73 0 00 7 126 0 00 199 0 00 8 127 0 00 326 0 bull 0 0

10 11 4 3 105 440 3 27 12 113 2 71 553 5 36 14 119 1 34 672 6 36 15 116 4 138 788 10 51 17 116 3 103 904 13 56 19 118 6 203 1022 19 74 21 118 0 00 1140 19 67 22 117 10 342 1257 29 92 24 116 3 103 1373 32 93 26 119 11 370 1492 43 115 28 11 8 6 203 1610 $ 49 122 29 115 13 452 1725 62 144

July 1 119 8 269 1844 70 152 3 119 17 571 1963 87 177 5 119 13 437 2082 100 192 6 12 0 17 567 2202 117 213 8 121 7 231 2323 124 214

10 11 4 18 632 2437 142 233 12 115 12 417 2552 154 241 13 116 37 1276 2668 191 286 15 117 16 547 2785 207 297 17 11 8 31 1051 290 3 238 328 19 118 18 610 3021 256 339 20 115 29 1009 3136 285 364 22 122 17 557 3258 302 371 24 115 24 835 3373 326 387 26 120 19 633 3493 345 395 27 117 11 376 3610 356 394 29 117 14 479 3727 370 397 31 116 18 621 3843 388 404

August 2 121 9 298 3964 397 401 3 122 17 557 4086 414 405 5 11 8 8 271 4204 422 402 7 128 19 594 4332 441 407 9 257 10 156 4589 451 393

10 125 14 448 4714 464 394 12 13 1 308 4727 465 393 14 107 5 187 4834 470 389 16 122 4 131 4956 474 383 17 123 15 488 5079 489 385 19 118 8 271 5197 497 383 21 112 3 107 5309 500 378 23 120 6 200 5429 506 373 24 115 7 243 5544 513 370

51

-----------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 (Continued)

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

August 26 115 5 174 5657 518 366 28 119 1 34 577 6 519 359 30 119 4 134 5895 523 355 31 117 0 00 6012 523 3 48

Sept 2 123 3 98 613 5 526 343 4 479 2 17 6614 528 319 6 238 1 17 6852 529 309 7 237 0 00 7089 529 298 8 9

238 242

1 2

17

33 7327 7569

clt

530 532

289 281

10 242 3 50 7811 535 274 11 242 0 00 8053 535 266 12 241 2 33 8294 537 259 14 227 3 53 8521 540 253 15 242 0 00 8763 540 246 16 210 1 19 8973 541 241 17 239 2 33 9212 543 236 18 230 0 00 9442 543 230 20 489 0 00 9931 543 219 21 240 2 33 10171 545 214 22 242 0 0 10413 545 209 23 234 0 00 10647 545 205

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10647 545

52

------------------------------------------------------------------------

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TABLE 6A Unalakleet River Sonar Site Drift Sets5 1 4n Me sh 19 83 bull

Date Time Result

July 19 1405-1413 1 burbot July 23 1040-1055 1 pink caracass July 27 1520-1530 1 coho August 3 1444-1501 4 coho August 22 1930-1937 0 August 23 937-943 1 coho 1 pink carcass August 26 1117-1127 1 coho 3 churn August 31 1018-1034 3 churn

TABLE 6B Unalakleet River Sonar Site Beach Seines 1983

Date Time Distance Result

July 20 1445 120 meters 4 pink 1 churn 13 Dolly Varden 1 whitefish

July 25 1500 120 meters 6 pink 1 churn 1 Dolly Varden 4 whitefish 1 grayling

July 28 1700 120 meters 4 coho 2 pink 2 churn 1 Dolly Varden

August 1 2010 300 meters 4 pink 3 churn 8 Dolly Varden

August 4 1015 130 meters 5 coho 3 pink 3 churn 65 Dolly Varden 3 whitefish 3 grayling

August 24 1110 130 meters 18 coho 2 Dolly Varden 2 grayling

August 29 1715 120 meters 11 coho 1 pink 69 churn 1 Dolly Varden 2 grayling

Seine done at mile 12 Unalakleet River

53

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TABLE 7 AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER CATCH SAMPLE SPORT CATCH AND SPAWNING SURVEYS 1983

II

COMBINED 3-2 4-2 4-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 31 646 6702 5 104 5010 8 167 5688 1 21 5900

Female 17 354 8540 o o 1 21 5450 o o

Total 48 1000 7353 5 104 5010 9 188 5661 1 21 5900

~ 11)

5-2 6-2 7-2 7-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 11 229 7382 6 125 8350 0 0 0 0

Female 2 42 7925 12 250 8742 1 21 10650 1 21 8350

Total 13 271 7465 18 375 8611 1 21 10650 1 21 8350

TABLE 8A AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER TEST NET SAMPLE 1983

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gt

COMBINED 4-2 5-2 5-3 6-2 7-2 NO LENGIH NO LENGIH NO LENGIH NO LENGTH NO LENGTH NO LENGTr

8 14 n

Male 3 333 8107 0 1 111 5800 o 0 2 222 9260 0 0 Female 6 667 8295 0 0 1 111 7600 o o 4 444 8310 1 111 8930 Total 9 10 e 0 8232 0 o 2 222 6700 o o 6 667 8627 1 111 8930

If) If)

5 14 Male 19 1000 6298 12 632 5392 4 211 6990 0 o 3 158 8997 0 0 Female o 0 o o o o o o 0 0 0 0 Total 19 1000 6298 12 632 5392 4 211 6990 o o 3 158 8997 0 0

4 n or Smaller Male 6 667 5930 1 111 4660 2 222 6325 3 333 6090 0 o 0 o Female 3 333 8970 o o o o o o 3 333 8970 0 o Total 9 1000 6943 1 111 466 2 222 6325 3 33 3 6090 3 33 3 8970 0 0

TOTAL Hale 28 757 6413 13 351 5336 7 189 6630 3 8 1 6090 5 13 5 9102 o 0 Female 9 243 852 o o 1 27 7600 o o 7 189 8593 1 2 7 8930 Total 37 1000 6925 13 351 5336 8 216 6751 3 8 1 6090 12 324 88 e 5 1 2 7 8930

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TABLE 8B AGE SEX AND SIZE COMPOSITION OF NORTON SOUND COHO SALMON UNALAKLEET RIVER TEST NET SAMPLE 5 14 AND 5 78 GEAR 1983

COMBINED 3-2 4-3 4-4 5-4 NO LENGIH NO LENGIH NO LENGTH NO LENGIH NO LENGTH

Male 9 900 5489 0 0 9 900 5489 0 0 Female 1 10 bull 0 552 QJ QJ 0 1 10QJ 5520 0 0 Total 10 1000 5492 0 0 10 1000 5492 0 0 725-731

bull LI)Male 15 938 5645 15 938 5645 Female 1 62 575 QJ 1 62 575 QJ Total 16 lQJ0QJ 5651 16 100QJ 5651 81-87

Male 24 545 5668 23 523 5768 1 23 3350 Female 20 455 5631 20 455 5631 0 0 Total 441QJ0QJ 5651 43 977 57 QJ 4 1 23 335 QJ 88-814

Male 7 500 5797 7 500 5797 QJ 0 Female 7 500 5596 6 429 5587 1 71 5650 Total 14 1000 5696 13 929 1 71 5650570 815-821

Male 5 455 5492 5 455 5492 Female 6 545 5552 6 545 5552 Total 11 lQJ00 5525 11 100QJ 5525 822-828

CONTENTS

List of Figures bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull i

List of Tables iii Introduction 1

Methods bullbullbullbullbullbull 2

Project Deployment middot 2 Sonar bullbullbullbullbullbullbullbull 2 Test Fishing bullbullbull middot 5 Counting Towers bullbullbullbullbullbullbullbullbull middot 6 Drift SetsBeach Seines 7

bull bullbullbullbullbull bull bull s bull bullbullbullbullbullbullbullbullbullbullbullRiver Surveys bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 7Subsistence Survey bullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 7

Results bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull middot 8

Subsistence Survey middot middot 8 Sonar bullbullbullbullbull 8 Test Fishing bullbullbullbullbullbullbullbullbullbullbullbull middot 9 Age Sex and Size Composition of Test Net Catches bullbullbull l~ Counting Towers bullbullbullbullbullbullbullbullbullbullbullbull bull bull 10 Drift SetsBeach Seines l~ River SurveysAerial Surveys bullbullbullbull 11 King Salmon Sport Fish Survey middot 11

Discussion 11

Conclusion 13

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LIST OF FIGURES Page

Figure 1 Unalakleet Escapement Project bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 14

Figure 2 Sonar Site Schematic bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 15

Figure 3 Unalakleet King Salmon Subsistence Survey 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 16

Figure 4A Specie Apportionment King Salmon Unalakleet Sonar 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 17

Figure 4B Specie Apportionment Coho Salmon Unalakleet Sonar 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 18

Figure 4C Specie Apportionment Pink Sa1monr Unalakleet Sonar 1983 bullbullbullbullbullbullbullbullbullbull ~ bullbullbullbullbullbullbullbullbullbullbullbullbull 19

Figure 4D Specie Apportionment Chum Salmon Unalakleet Sonar 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 2~

Figure 5 Specie Apportionment Unalakleet Sonar 1983 bullbull 21

Figure 6 Sector Distribution of Counts Unalakleet Sonar 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 22

Figure 7 Hourly Distribution of Counts Unalakleet Sonar 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 23

Figure 8 Unalakleet River Test Fishing Daily King CPUE in 8 14 Mesh 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 24

Figure 9 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 Mesh 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 25

Figure 1~ Unalakleet River Test Fishing Daily Coho CPUE in 5 78 Mesh 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 26

Figure 11 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 Mesh 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 27

Figure 12 Unalakleet River Test Fishing Daily Pink CPUE in 4 Mesh 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 28

Figure 13 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 Mesh 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 29

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Page Figure 14 Unalakleet River Test Fishing Daily CPUE in

5 14 and 5 78 Mesh 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 3~

Figure 15 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 14 and 5 78 Mesh 1983 bullbullbullbullbull 31

Figure 16 Unalakleet River Test Fishing Catch Proportions1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 32

Figure 17 Unalakleet Area Temperatures 1983 bullbullbullbullbullbullbullbullbullbullbullbull 33

Figure 18 Unalakleet River Turbidity and Depth 1983 bullbullbullbull 34

Figure 19 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 Mesh 1981-1983 bullbullbullbullbullbullbullbullbullbullbull 35

Figure 2~ middotUna1ak1eet River Test Fishing Cuciu1ative Chum CPUE in 5 78 Mesh 1981-1983 bullbullbullbullbullbullbullbullbullbullbull 36

Figure 21 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 Mesh 1981-1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 37

Figure 22 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 Mesh 1981-1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 38

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LIST OF TABLES

Table 1 Page

Unalakleet River Subsistence King Salmon Index 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 39

Table 2 Unalakleet River Final Sonar Counts 1983 bullbullbullbullbull 40

Table 3A Unalakleet River Species Apportionment by Test Period - King Salmon 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 42

Table 3B Unalakleet River Species Apportionment by Test Period - Coho Salmon 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 43

Table 3C

Table 3D

Unalakleet River Species Apportionment by Test Period - Pink Salmon 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 44

Unalakleet River Species Apportionment by Test Period - Chum Salmon 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 45

Table 4 Unalakleet River Test Net Proportions by Sample Period 1983 (selective CPUE) bullbullbullbullbullbullbullbullbullbull 46

Table SA Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983 bullbullbullbullbull 48

Table 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983 bullbullbull 49

Table 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983 bullbull 5~

Table 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 51

Table 6A Unalakleet River Sonar Site Drift Sets 5 14 Mesh 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbull 53

Table 6B Unalakleet River Sonar Site Beach Seines 1983 bullbullbullbullbullbullbullbullbull ~ 53

Table 7 Age Sex and Size Composition of Norton Sound King Salmon Unalakleet River Catch Sample Sport Catch and Spawning Surveys 1983 bullbullbullbullbullbullbullbull 54

Table 8A Age Sex and Size Composition of Norton Sound King Salmon Unalakleet River Test Net Sample 1983 bullbullbullbullbullbullbullbull 55

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Page Table 8B Age Sex and Size Composition of Norton Sound

Coho Salmon Unalakleet River Test Net Sample 5 14n and 57811 Gear 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 56

Table 8C Age Sex and Size Composition of Norton Sound Chum Salmon Unalakleet River Test Net 5 1 4 n and 5 7 8 Gea r 19 8 3 bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull 5 8

Table 9A Age Sex and Size Composition of Norton Sound King Salmon Unalakleet Commercial Catch Sample 1983 bullbullbullbullbullbull 61

Table 9B Age Sex and Size Composition of Norton Sound Sockeye Salmon Unalakleet Test Net Sample 5 78 11 5 14 n 4n and Variable Mesh Nets 1 98 3 bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull e $ bull bull bull bull bull bull bull bull bull bull bull 6 2

Table 9C Age Sex and Size Composition of Norton Sound Coho Salmon Unalakleet Commercial Catch Sample 1983 bullbullbullbullbullbullbullbull 63

Table 9D Age Sex and Size Composition of Norton Sound Chum Salmon Unalakleet Commercial Catch Sample 1983 bullbullbullbullbullbullbullbullbullbullbull 64

Appendix Table lAo Unalakleet River Test Net King Salmon Catches 1981-1983 8 1411 Mesh bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 65

Appendix Table lB Unalakleet River Test Net King Salmon Catches 1982-1983 5 Gear bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 67

Appendix Table lC Unalakleet River Test Net Coho Salmon Catches 1981-1983 5 78 n Mesh bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 68

Appendix Table ID Unalakleet River Test Net Pink Salmon Catches 1981-1983 4 n Me sh bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 70

Appendix Table IE Unalakleet River Test Net Chum Salmon Catches 1981-1983 5 78 Mesh bullbullbullbullbullbullbullbull bull bullbullbullbullbullbullbullbullbullbullbullbullbullbull 72

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INTRODUCTION

The Unalakleet River empties into Norton Sound approximately 130 miles southeast of Nome is approximately 130 miles in length and drains an area of 1087 square miles The Unalakleet River flows from the Nulato hills westward to the town of Unalakleet on the Bering Sea coast Five major tributaries comprise the river all of which support spawning salmon

The town of Unalakleet is situated at the mouth of the Unalakleet River the most important salmon producing river in Norton ~ound Historically the people of the area have depended on the salmon runs for their liveli~ood first as food for themselves and their dogs and more recently as the basis of their cash economy

Attempts to assess salmon escapement to the system have been made annually by aerial stream surveys counting towers on the North River in 1973 and 1974 and on the Chirosky River during 1975 and 1976 Weather and water clarity have often limited these enumeration efforts but escapement estimates have ranged as high as 1477 king (1977) 28600 churn (1978) 491706 pink (1978) and 1184 coho salmon (1980) not including major tributaries

A salmon subsistence survey is conducted by the Commercial Fisheries Division each year in Unalakleet Results have indicated that sUbsistence catch averages have been increasing in recent years The recent five-year average 1978 to 1982 subsistence salmon catches were 922 king 4694 coho 13019 pink and 3840 chum salmon Coho and pink salmon catches have shown the greatest increases due largely to increased returns of these species

Commercial catches in the Unalakleet subdistrict have also increased due to increased effort better technology and the increased returns of coho and pink salmon The recent five-year average (1978-1982) commercial catch for the Unalakleet subdistrict is 5629 king 28427 coho 131016 pink and 43086 chum salmon In 1982 the average commercial fisherman received approximately $6000 from the sale of salmon

Because of the importance of the commercial and subsistence

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fisheries and the problems of estimating escapement in this subdistrict side-scanning sonar was installed in 1982 in the Unalakleet River in hopes of gaining a more accurate estimate of escapement and at the very least a more consistent index of salmon migration

A test fishing program was in operation in 1981 in the lower four miles of the Unalakleet River Indices from this study were instrumental in helping the area biologist set some commercial fishing periods In 1982 sonar counts proved useful as an index of the coho salmon escapement and were used by the area biologist in extending the coho fishery

A number of problems affecting sonar counts became more apparent during the 1983 season These problems brought on by low river velocity (13 to 17 fps) and tidal f1uctuationi included milling salmon and allocating counts to five different fish classifications

With increased harvest effort on the chinook population a limited sport fish survey was begun

This report presents the results of the Unalakleet sonar projects second year of operation and comparison of test fishing indices from 1981 to 1983

METHODS

Project Deployment

Supplies and equipment were on-site and camp construction was completed on May 28 Both north and south bank counters were in operation on June 4 Sonar counter operation ceased on September 4 91 days after counting was initiated By September 6 the sonar camp had been dismantled and the equipment stored for the winter

Test fishing began on May 27 and ended on September 23

Sonar

The Electrodynamics Division of the Bendix Corporation developed a side- scanning hydroacoustic counter during the 1970s capable of detecting and counting salmon migrating along the banks of tributary streams The side-scan sonar counter is designed to transmit a sonic beam along a 60 foot aluminum tube or substrate

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Echoes from fish passing through the beam are reflected to the transducer The systems electronics interpret the strength and number of the echoes and tally fish counts

Two Bendix side-scan counters 1981 models were used on the Unalakleet River The respective 60-foot tubular aluminum substrates were deployed from opposite banks of the Unalakleet River Both substrates were positioned so there was at least two feet of water over the sonar beam that is projected immediately above the substrate that is two feet over the transducer housing and seven feet over the target end of the substrate It was found that three feet of water was needed as a buffer to eliminate debris counts due to wind ripples flotsam and sudden water level changes A small weir _ was placed to prevent fish passage inshore from the transducer on both sides of the riverThe substrates were not located directly opposite each other The north bank substrate was located 400 feet upstream from the south bank substrate which was placed in a nearly ideal river bottom profile Unfortunately mud shallows were opposite the south bank During the season fish behavior necessitated movement of the north bank substrate to a site 300 feet downstream of the south bank substrate

The river width at this site is approximately 200 feet The deepest channel is located about 80 feet from shore at the north bank substrate and about 100 feet from shore at the south bank substrate Although one-third of the river is isonified by the sonar beams if fish follow a depth contour then more than two-thirds of the possible fish paths would be covered by the sonar counters

The substrates were moved several times during the summer because of water level changes or for cleaning The substrates were guyed to two dead men each in the form of buried logs held in place with fence posts Stainless steel aircraft cable fastened to each end of the substrate was attached to respective dead men on shore

The cables were roughly parallel and adjusted to hold the substrate perpendicular to shore The inshore cable was long enough to allow the substrate to remain perpendicular to shore even though it might be moved 15 feet from shore The easiest method of movement of the substrate was to use the hydrodynamic shape of the substrate to raise itself and push against the substrate with a handy man jack The inshore footing could then be relocated with a minimum of

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effort

Although the current at the sonar site was insufficient to raise the tube to the surface it did help in pulling it up to a point where it could be cleaned

Calibration (a comparison of oscilloscope fish counts and sonar fish counts) was scheduled four times daily on both banks The magnitude of the fish milling problem compounded by slow fish passage made this schedule impractical much of the summer Calibration was attempted when usable results seemed impossible it was not attempted at extreme rates of fish passage Calibration was done by comparing echoes on a Tektronix 221 oscilloscope with counts of the sonar counter Salmon passing through the sonar beam produce a distinctive oscilloscope trace A count of 100 fish within 30 minutes the maximum calibration period was required before resetting the sonar fish velocity controls

agreement = Sonar computer count Oscilloscope count

The agreement was then used to adjust the daily counts Agreement of less than 1 indicates the sonar was undercounting and greater than 1 indicates overcounting

When the count agreement varied more than 15 then the following equation was used to derive a new fish velocity

agreement x existing velocity = new velocity

Milling fish became a problem on June 28 on the north bank when slow migrating and milling pink salmon oscars started riding the substrate turbulence wave Based on counting tower observations it was determined that all sixteen sectors were affected On July 1 and 2 the substrate was moved approximately 700 feet downstream to the base of a small cliff with somewhat faster water velocity Pink salmon began riding the substrate at the new site within hours Oscars were not a problem on the south bank during this time therefore in order to estimate the passage on the north bank the average hourly passage rate (percent per hour of the daily total) of the preceding three day period of the south bank was used to calculate daily totals for the

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north bank based upon hours which were not apparently effected by oscars

Total of Preceding 3-day valid hourly sum of daily

Daily total--North = counts--north x counts--South Total of corresponding hourly counts for preceding 3 days--south

After two weeks of attempting to deal with milling fish the following policy was decided on The sonar beam was raised slightly so that a strong target was seen in the four degree mode but a decrease in target strength was barely apparent in the two degree mode The offshore end of the substrate was moved middotfive feet downstream from the perpendicular placement used earlier The beam was extended as far as possible beyond the target These measures seemed to eliminate fish avoidance of the substrate as a problem

Other milling problems were not satisfactorily resolved Salmon moving downstream were not counted by the sonar but those same fish moving upstream could be counted by the sonar It was decided to invalidate an hourly count if milling fish were observed from a tower or oscilloscope or if sonar criteria were not met Disqualifying sonar criteria were hourly debris checks or a large fish count over 15 The large fish count indicated fish moving over the substrate in a tight school which was characteristic of milling behavior King salmon in the Unalakleet did not seem to reflect a long enough signal to register as large fish however two or three small salmon could register if they were close to the same distance from the transducer and spaced in an overlapping manner

Records of changes in counter settings river conditions and other unusual occurrences were also used in adjusting daily sonar counts

The large fish counter on the 1981 model sonar counter was ignored except as an index of milling fish

Test Fishing

The same test fishing site as in 1981 and 1982 was used during the 1983 season

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The ten fathom 8 14 gillnet was set from May 27 to May 31 A twenty fathom 8 14 gillnet was set on June 1 and fished until June 4 From June 5 to September 4 the period of sonar operation a rotating schedule of twelve hour time blocks over a period of three days was used The nets used included

1 20 fm 8 14 mesh 2 25 fm 5 14 mesh (June 5-August l025 fm 5 78

mesh (August II-September 4) 3 25 fm 4 mesh 4 15 fm variable mesh

The 25 fm 5 78 mesh gillnet was fished from September 5 to September 25 The 8 14 mesh net and the v~riable mesh net were fished concurrently The three-day rotation schedule allowed each net to be fished during one 12-hour high tidedaylight period and one 12-hour low tidenight period Nets were rotated at 0900 and 2HJ0 daily The 8 14 mesh net was removed from the rotation on July 21 because the chinook migration was completed

The CPUE (catch100 fm-hr) was calculated for the two most efficient nets for each species to be used in apportioning sonar counts These CPUEs for chinook coho pink chum and other species presumably detectable by sonar were totaled and the species CPUE divided by the total CPUE for all species to give the percent of the periods sonar counts to each specie The seventh day of the week was apportioned by using the previous 3-day proportions for one half of the counts and the following 3-day proportions for the second half of the counts

Test net data (Tables 5A 5B 5C and 5D) was calculated for the single most effective net for each species for separate analys is

Weights lengths and scale samples were taken from all chinook coho and chum captured Pink salmon were counted only Tissue samples were taken from test net chinook salmon for electrophoretic studies coordinated by the Stock Separation Section of the Commercial Fisheries Division

Counting Towers

Counting towers were erected immediately adjacent to the

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onshore end of each substrate (Figure 2) As in 1982 the use of visual tower counts for comparison with sonar counts could not be relied upon due to river width surface disturbances etc however several short comparisons were possible The towers proved invaluable in determining the presence of moribund fish debris passage presence of oscars fish swimming behavior etc The 1983 low river level and generally less turbidity as compared to 1982 allowed more rapid and concrete identification of the milling fish Without use of the tower the severity of the milling fish problem may not have been discovered

Drift SetsBeach Seines

Drift sets and beach seines were done for comparison with test net species apportionment and to determine fish passage beyond the sonar counting range Drjft sets were accomplished by drifting a 25 fm 5 14 gillnet perpendicular to the shore The 25 fm net allowed the major portion of the river to be fished thus only one drift was done per set as opposed to 1982 when a drift set was done near each bank Set durations ranged from 5 to 17 minutes dependent upon boat traffic wind conditions etc Drift sets were done on July 19 23 and 27 and August 3 22 23 26 and 31

Beach seines were accomplished by using a 25 fm 3 mesh seine immediately downstream of the south bank substrate Shoreline conditions prevented se1n1ng near either north bank site Beach seines on the south bank were done on July 20 25 and 28 and August 1 and 29 Beach Unalakleet River were done on August 4 and levels prevented seining from August 4 to

seines 24

24

at High

mile 12 water

Riyer Surveys

Two river surveys were attempted during 1983 A jet boat was taken up the North River on July 29 This proved to be early for carcass sampling but weather and equipment problems prevented a later survey

A float trip of the Old Woman and upper Main River was also made A plane landing mishap greatly reduced the scope of this trip Weather prevented any follow up work

Subsistence Surveys

A daily survey of three to five sUbsistence fishermen is

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made from the time the first king salman is caught early in June through the remainder of that month These people must be trustworthy conscientious about checking their nets and fairly successful The average daily catch is compared to the previous day to develope the annual trend and the total catches and the annual trend is compared to past years Commercial catch and effort data and the up-river test net data are used in conjuction with the subsistence catch to anticipate strategies

future catches and management

During late September made of Unalakleet

an The

extensive door to door survey is Annual Management Report covers

subsistence surveys in detail

RESULTS

~istence Survey

The Unalakleet subsistence survey made in late September interviewed 74 subsistence fishermen 68 of whom fished in the river and 17 who fished in the ocean The catch was predominantly from the river with 1480 king 6311 coho 13458 pink and 4124 chum salmon reported The ocean subsistence catch was 388 king 577 coho 350 pink and 277 chum salmon

The mean chinook salmon catch per fisherman peaked on June 16 This compares with July 3 in 1982 and June 19-22 in 1981 All subsistence fishermen surveyed in 1983 were fishing within one mile of the river mouth

Chinook subsistence survey results are presented in Table 1 and Figure 3 As in 1981 and 1982 the variances in nets fishing times and net locations call for calculation of mean catch per fisherman as opposed to catch per unit effort

Sonar

During the period from June 4 to September 4 the final sonar count was 322494 148465 (460) counts were tallied on the south bank and 174029 (540) counts were tallied on the north bank

The daily sonar counts (Table 2) were adjusted by the test net proportions (Table 4) to give the following escapement estimates for the period June to September 4

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Species Total Count LQf Total

Chinook 2790 09 Coho 17013 53 Pink 91881 285 Chum 58273 181 Other 152537 AL2

322494 1000

Tables 3A 3B 3C 3D and 4D present this data by 3-day sample period Based on discussions with Al Menin and Dave Gaudet about the ability of sonar counters to discriminate between various target shapes and sizes any fish two and one half pounds or laterally compressed fish ~f one pound or larger could be counted by a sonar calibrated for pink salmon Fish other than salmon considered countable by the sonar counter included arctic char grayling burbot and broad humpback and Alaska whitefish

Peak adjusted apportioned sonar counts were on June 23 for chinook August 21 for coho July 18 for pink and July 25 for chum salmon (Tables 3A 3B 3C and 3D Figures 4A 4B 4C and 4D)

Representative passage rates on the south bank by sector and by hour for July 3-5 and August 21-23 are presented in Figures 6 and 7 These periods were chosen because of minimal adjustments to raw counts north bank counts are not presented due to lack of relatively clean data for those periods

Test Fishing

A total of 19 chinook (74 male - 26 female) 294 coho (61 male 39 female) 1156 pink (52 male - 48 female) and 915 chum (54 male - 46 female) was captured from May 27 to September 23 The fish were sampled and delivered to Hartha Nanouk a local subsistence fisherman as per agreement for the use of her traditional set-net site

Based on the single most effective test net CPUE the chinook migration did not peak as such but rather showed most consistent catches on June 22 and 23 coho migration peaked from August 10-14 pinks from July 18-22 and chum on July 13

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Comparisons of daily CPUE and cumulative CPUE for all salmon species are presented in Tables SA 58 5C and 5D and Figures 8 thru 15 Of interest although not as useful for annual comparison due to different test net methods net mesh sizes fishing time etc the actual fish caught from 1981 to 1983 are

~ 1982 un 41 chinook 39 chinook 39 chinook

107 coho 310 coho 294 coho 1463 pink 5114 pink 1156 pink

722 chum 375 chum 915 chum

f

Age Sex and Size Composition of Test Net Catches

An age analysis of scales collected during the project indicated the following age compositions king salmon all gear sizes (4-2131 5-2 22~ 5-3816-23217-2 3) coho salmon 5 14 and 5 78 gear (3-2 051 4-3 981 4-4 051 5-4 l) chum salmon 5 14 and 5 78 gear (3-1 21 4-1 611 5-1 37) Tables 7 thru 9D show the age composition of the various species broken down by date and the mesh sizes used during the project

Counting Towers

As cited visual tower counts could not be made on the Unalakleet River due to river width surface disturbances turbidity etc However visual observations proved invaluable in identifying spawning behavior etc and resulted in the downstream relocation of the north bank substrate and development of the method used to adjust north bank sonar counts

Drift SetsBeach Seines

Tables 6A and 68 present the results of drift sets and beach seines respectively Drift set results indicate that the portion of the river not isonified was not used by migrating salmon ie the species most countable coho pink and chum salmon would seem to follow the banks and were counted by the side-scan sonar

Beach seines proved useful in verifying the high presence of

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species other than salmon the relative abundance of coho salmon in August and the presence of spawning churn salmon in the south bank substrate area

Riyer SurveysAerial SurVeys

On July 29th 32 miles of the North River were surveyed by a two-person crew for the purpose of counting live chinook and sampling chinook carcasses A total of 166 live chinook were counted and 3 chinook carcasses were sampled with approximately half of the chinook counted between mile 25 and mile 32

Originally the Old Woman River survey was to be a six-day trip Due to the damage the plane suffered dropping the first crew member off the second member and support gear was not av~ilable for the survey as planned~ The survey of the Old Woman River August 6-8 counted 60 king salmon but only four samples were collected Weather prevented the survey of the main river

King Salmon Spo rt Fish Survey

A sport fishing lodge on the Unalakleet River is responsible for the majority of the sport fishing effort Periodic surveying of lodge personnel indicates that a fair quantity of king salmon are harvested by sport fishing A quantitative survey was not done however due to limited time available A total of 43 chinook was sampled from sport fishing catches

DISCUSSION

River levels were lower than normal during the spring of 1983 due to the lack of snow accumulation the previous winter The Unalakleet River cleared early and became quite low during late June and early July The low water allowed the counting towers at the sonar site to be used during calm survey days which wasnt possible during 1982

Tower observations made as early as June 28 showed serious milling problems at the north bank sonar site The sonar was moved to a new site on July 2 Milling fish were still a considerable problem at the new site but about half the hourly count were considered acceptable during mid-July Milling salmon were a problem through most of the field season Milling salmon of all four species were observed

-11shy

during the latter half of each respective migration Pink salmon presented the worst problem and churn the least Unfortunately milling pinks invalidated the churn count since the two runs overlap Coho salmon exhibited some milling but an accurate evaluation of this problem was hampered by turbid water Milling coho became a problem after August 20

The milling observed from the towers was not apparent to the observer at the oscilloscope because of the overwhelming number of spikes present at that stage of the salmon migration During 1982 when tower observations were not possible the oscilloscope appeared to have an extraordinary number of spikes The large pink salmon count recorded in 1982 may have been an artifact of milling behavior that was unobservable then Commercial catch and test net catch statistics indicate a large pink salmon run f However it is likely fish milling over the substrate exaggerated the sonar count although without tower observations it can not be proven

Another problem observed during the 1983 field season was avoidance of the substrate by all fish species This problem was at its worst when water was low and clear Angling the substrate slightly downstream as it was after July 15 helped considerably By extending the sonar beam periodically it was determined that as visibility decreased so did avoidance

Species apportionment of the sonar count was done using test net catches Some of the problems encountered with the sampling scheme should be pointed out Test nets were assumed to sample the same portion of the river as the sonar Since three net lengths were used this seemed suspect Different species migrate at different depths The non-salmon species tend to migrate in shallow water near shore and generally the larger species migrate in deeper water nearer mid-stream Since only a IS-fathom net of the most efficient type for non-salmon species was fished in the preferred habitat for these fish it is likely that the calculated efficiency was too high The other test nets were longer and also sampled some preferred areas for the targeted species

The opposite case is true for king salmon The 8 14 net is 20 fathoms longS fathoms shorter than the other nets used on this project This net does not cover all of the area preferred by king salmon This means king salmon

-12shy

escapement is probably underestimated but the 20 fathom net samples an area further out than the sonar counter even with its beam extended So the number of king salmon counted by the sonar is over estimated King salmon make up such a small percentage of the total salmon run that counting errors are more significant than this apportionment error

Very few churn and pink salmon were caught in the offshore end of the nets It is assumed these long nets had very little effect on the sonar count species apportionment

CONCLUSION

The feasibility of counting salmon in the Unalakleet River using side-scanning sonar is unlikely due to milling fish and the inal1ility to accurately apportion the sonar count to the various fish species It is possible that a partial escapement count could be made further up river above one or more of the major tributaries to the system The new north bank sonar site that showed some improvement over the former site had two differences that seemed to affect salmon migration The current was faster over the substrate at the second site and the river gravels were less ideal spawning habitat The new site was located below a rock bluff on the outside of a river bend

There are two similar sites up river about ten miles where the current is faster and the bottom is even less conducive to spawning During the 1984 field season a comparison of the smoother running south bank site and these up-river sites could be made The best time to do this would be during August when only coho salmon are migrating The counter should be operating by August 15 prior to milling activity and maintained for a week to evaluate if milling salmon became apparent later after the migration peaked The south bank site could be used as a control for comparison to 1983

-13shy

I I

5 1 2

Miles No tt h _

shy

R Iv er

Figure 1 Unalakleet Escapement Project

lt

Son sr

Fig u r e 2 S 0 0 a r Sit eSc hem a tic

ITower

Original Ninth Bank Sonar

Drift sets 5 minutes

Lf)

So t h Ban k Son a

lTower

o Work Tent

B Living Quarters

Figure 3Unalakleet Subsistence Survey 1983

Kin g- S a I m 0 n

1bull

10

9

c 8aI

-lE 11 t a til 7 ~ II 6 ~ U

5 til

0

c 4 til til

E 3 I

1 V

~ 2

1

27 1 5 10 15 20 25 30

~ June

Figure 4A Specie apportionment king salmon Un-alakleet sonar 1983

~

25

-l20

c 1 5 III () III

11

10

5

I

J

27 31 5 10 15 20 25 30 5 10 15 20 25 31

June Ju Iy

Figure 4B Specie middotapp~~tionment coho salmon Unalakleet sonar 1983

30

25

co ~

20

1 t~

C $

u 1 5 CD a

10

5

5 10 15 20 25 31 5 10 15 20 25 31 5

Ju August Sept e

Figure 4C Specie apportionment pink salmon Unalakleet sonar 1983

1 6

1 5

14

1 3

12

1 1

c II U CII

Ashy

10

9

a

7

01 ~

6

5

4

3

2

1

1 5 10 1 5

June

2 O 25 30 5 10 15 20

Ju Iy

25 31 5 10 15 20

August

25 31 5 10

Septem

Figure 40 Species apportionment chum salmon Unalakleet sonar 1983

16

1 5

1 4

13

1 2

1 1

10

9 c 8GI U

GI middot7 A

6

5

4

3

2

1

~

o N

~

1 5 10 15 20 25 30 5 10 15 20 25 3 1 5 10 15 20 25 31 5 10

June Ju Iy August Sept e

Figure 5 Specie apportionment Unalakleet sonar 1983

50

4

40

35

c J 30 0 U

~ 0 25 0 c Q)

u ~

Q) 20a

15

10

5

o L-_lt---__

King Coho Pink Chum Misc

21

----

Figure 6 Sector distribution of counts Unalakleet sonar1983

35

30

25

c 20 G)

() G) 15

0

10

5

35

30

25 c G)

() 20

G)

0 15

10

5

( s ()u t h ban k )

July 3-5

~-2 4 6 8 1 0 1 2 1 4 1 6shy

Sector

August 21-23

2 4 6 8 10 12 14 16

Sector

22

Figure 7 Hourly distribution of counts Unalakleet sonar 1983

(south bank)

14

12

10

c 8 GI U ~

6

July 3-5

~GI

I =~ Q

4

2 0

2 4 6 8 10 12 14 1 6 18 20 22 24

TIme

9

8

7

6

5 c GI U ~ 4 GI

Q

3

2

August 21-23

1

0

2 4 6 8 10 12 14

TIme

16

23

18 20 22 24

Figure 8 Unalakleet River Test Fishing Daily King CPUE in 8 14 mesh 1983

10

9 N

8 shy

7 I 0 c 6E

n

l J I I

0 0 5 c (J 4 co 0

3

2

1

I I

27 1 5 10 15 20 25 1 5 10 15 20 25 31

~ June July

Figure 9 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1983bull

~

middot10

09 U N

I 08 0 c 07E I ()

- 06 E-0 0 05 shy~ () 04 ca - ()

03E I 0 02

01

27 1 5 10 15 2Q 25 1 5 10 15 20 25 31

June July

Figure 10 Unalakleet River Test Fishing Daily Coho CPUE in 5 78 mesh 1983

1

6

5

I 0

NI II I 0 t

E 4

0 0 c 3() cu 0

2

1

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sept U

Figure 11 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1983

200

175

150

I 0 c 125E I ()

E

r-shy-0 I I N 0 100 c ()-as ()

75E I 0

50

25

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sel ber

20

Figure 12 Unalakleet River Test Fishing Daily Pink CPUE in 4 mesh 1983

18

I

0) N

II

16

I ishy

14 J 0 t 12shyE 0 10 0 shys 8 () as

0 6 1 I V 4

2

~ I

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

--

Figure 13 Unalakleet River Test Fishing Cumulat ive Pink CPUE in 4 mesh 1983

10

9 01 N 8

J 0 J 7 E J 0 6 E- 50 ~

amp 4() ca

0 3 E J

0 2

1

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

Figure 14 Unalakleet River Test Fishing Daily CPUE in 5 14 amp 5 78 mesh 1983

14

13shy

12

11

10

9 J 0 8

I z shy-E 7 0 0 shys ~u aI 0

4 I

31

2

1

II

0 C1)I 11

I I I II

bull y AA(net changed to 5 78

AA A 11 I

~ I~ V ~

- I

VI

1 5 10 15 20- 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

cJune July August

Figure 15 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 14 amp 5 78 mesh 1983

It

5

--l C)

net changed to 5 78

~ 4 o

c E (J ~

3E o o c 2 u ~ -(J

E ~ (J 1

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 16 Unalakleet River Test Fishing Catch Proportions 1983

60

55

---- King50

__ Coho 45

P--Q Pink

40 __ Chum

I LU 35J D I 0

30 ICQ 0 25 I

N Cl0 20

c G)

15u G)

D

10

5 A 1 I

I 4 I

I I

3 lt

~

2

I I1 - I bull I

I ~ ~ ~ t -J ~~ - _

r

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 17 Unalakleet Area Temperatures 1983

18

16

14

12

til 10I

u-G) 80 CI) G) G) 6 C) G)

Q 4

2

C) C)

__ Air

0--0 River 2

0

-2

-4

---------~ ~

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August 5e

4

Figure 18 Unalakleet River Turbidity and Depth 1983

__ Secchi Reading

-t ()

II) G)-G)

3

iE 2

1

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August

~ 1 _ ~ r--- I shy I __ I 01 --shy

Figure 19 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1981-83

27 31 5

May

_1981

____ 1982

o 0 1983 11) C)

Changed to 5 78 mesh

I

t

~-~o-~ Q-O--Oolt)-(IQ-----l

--1

_10 15 20 25 30 5 10 15 20 25 31

June July

I I I

~

0 ~

r E ~

CJ shyE 0 0 I

shyr u-cu CJ

E ~

CJ

4

35

30

25

20

15

10

05

Figure 20 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 78 mesh 1981-83

5

4 lI 0

z

E lI 0 3 E-0 0 2 r CJ-cu 0

E lI 1 0

__1981 ~~

~ ___1982

a 01983 5 148 mesh from 65-810

_----shy-- 0 - -- C1) A - _ - ~

~ I

I

II I I I I I

I I

1

~ -

-

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 21 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 mesh- 1981-83

8

70

60

50

40 0

r 30E

0 20E-0 0 10 s= u 8 tV 0 6E 0 4

2

__1981 ____ 1982

_1983

shy--- -- shy--- shy J - -

I

I

C1- J

I

-----l---l ~--~r---------------r--

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 22 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1981-83

_1981

~ __ 1982

~1983

25

00I _ __ _ _ C)~ I __ _ I

I V o 20 rt I I

E I AshyI o E 15-o o z u 10 tU o E I o 5

I

1 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

July August 5

----------------------------------------------------------------

Table 1 Unalakleet River Subsistence King Salmon Index 1983

Number of Number of Date Fishermen Chinook Average

08 02 18 05 05 00 02 58 92 62 72 72 42 28 52 60 62 20 47 50 35 25 15

June 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Totals

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 4 4 4

4

3 1 7 2 2 o 1

23 37 25 29 29 17 11 21 24 25

6 14 15 14 H~

6

322

~

39

---------------------- ---------- --------------------------------------

----------------------------------------------------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983

Daily Proportion Cumu1 Prop Date South North Total of Total Cumulative of Total

64 7 23 30 1313131 313 013131 65 44 187 231 00137 261 01308 66 12 162 174 01305 435 01313 67 8 283 291 1313139 726 01322 68 0000 726 13022 69 3 221 224 013137 950 13029 610 26 245 271 131308 1221 13037 611 56 254 310 131310 1531 131347 612 44 736 780 013 24 2311 13071 613 64 1188 1252 01339 3563 01113 614 59 1752 1811 0056 5374 0166 615 97 844 941 01329 6315 0195 616 165 729 894 0028 7209 0223 617 151 i 604 1755 0054 8964 middot 0277 618 i ll 1524 1635 0051 10599 13328 619 175 2000 2175 0067 12774 13395 620 171 21320 2191 0068 14965 0463 621 220 1613 1833 0057 16798 0520 622 199 2065 2264 0070 19062 0590 623 362 21334 2396 0074 21458 13664 624 876 3403 4279 13133 25737 0797 625 1244 2023 3267- 0101 29004 0898 626 738 1601 2339 0073 31343 0971 627 573 3265 3838 0119 35181 1090 628 547 1868 2415 0075 37596 1165 629 528 4028 4556 0141 42152 1306 630 430 430 0013 42582 1319 71 240 240 01307 42822 1326 72 201 975 1176 0036 43998 1362 73 309 8842 9151 0284 53149 1646 74 475 6385 6860 0213 60009 1859 75 565 3342 3907 0121 63916 1980 76 1377 2094 3471 0108 67387 2088 77 1416 3173 4589 0142 71976 2230 78 1472 1420 2892 0090 74868 2320 79 2071 1452 3523 01113 78391 2430 710 3318 2434 5752 0178 84143 2608 711 2673 2866 5539 13172 89682 2780 712 1665 1747 3412 13106 93094 2886 713 21317 1951 3968 13123 97062 3009 714 2991 2664 5655 0175 102717 3184 715 2646 2548 5194 13161 107911 3345 716 2488 2886 5374 0167 113285 3512 717 1585 4063 5648 0175 118933 3687 718 3559 9326 12885 0400 131818 4087 719 2948 2398 5346 13166 137164 4253 720 1640 3330 4970 0154 142134 4407 721 2416 6420 8836 0274 150970 4681 722 3298 3298 0102 154268 4783 723 5007 5007 0155 159275 4938

40

--------------------------------------------------------------------

--------------------------------------------------------------------

-----------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983 (Continued)

Daily Proportion Cum Prop Date South North Total of Total Cumu1at i ve of Total

724 4005 7804 11809 0366 171084 5304 725 2453 3392 5845 0181 176929 5485 726 2166 12094 14260 0442 191189 5927 727 1914 4472 6386 0198 197575 6125 728 1603 3463 5066 0157 202641 6282 729 1251 1914 3165 0098 205806 6380 730 1710 2495 4205 en30 210011 6510 731 2542 1887 4429 0137 214440 6647 81 4479 2271 6750 0209 221190 6856 82 1103 1806 2909 0091 224099 6947 83 1719 942 2661 0083 226760 bull 7030 84 1519 2557 4076 0126 230836 7156 85 1259 1113 2372 0074 233208 7230 86 940 2189 3129 0097 236337 7327 87 1467 4354 5821 0180 242158 7507 88 2318 1584 3902 0121 246060 7628 89 2098 1505 3603 0112 249663 7740 810 2629 1517 4146 bull 0129 253809 7869 811 3753 1091 4844 0150 258653 8019 812 1489 523 2012 0062 260665 8081 813 744 353 1097 0034 261762 8386 814 981 981 bull 0030 262743 8145 815 2324 2324 0072 265067 8217 816 2638 2638 0082 267705 8299 817 2073 731 2804 0087 270509 8115 818 2244 675 2919 0091 273428 8477 819 3240 696 3936 0122 277364 8599 820 2363 503 2866 0089 280230 8688 821 6789 1111 7900 0245 288130 8933 822 6489 563 7052 0219 295182 9152 823 5077 298 5375 0167 300557 9319 824 2616 298 2914 0090 303471 9409 825 3933 412 4345 0135 307816 9544 826 1393 554 1947 0060 309763 9604 827 1203 463 1666 0052 311429 9656 828 1197 542 1739 0054 313168 9710 829 1244 221 1465 0045 314633 9755 830 1011 199 1210 0038 315843 9793 831 718 214 932 0029 316775 9822 91 1324 318 1642 0052 318417 9874 92 1362 307 1669 0052 320086 9926 93 1146 314 1460 0045 321546 9971 94 652 296 948 bull 0029 322494 10000

148465 174029 322494 10000

41

----------------------------------------------------------------------

-------------------------------------------------------------------- --

------

TABLE 3A Unalakleet River Species Apportionment by Test Period King Salmon 1983

3-Day App Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 76 0272 76 0272

69-612N 28 0100 104 0372

612N-615 461 1652 565 2024

616-619N 419 1502 984 3526

619N-622 170 0609 1154 4135

623-626N 722 2588 1876 6723

626N-629 264 0946 2140 7669

630-73N 103 0639 2243 8038

73N-76 188 0674 2431 8712

77-710N 0 0000 2431 8712

710N-713 0 0000 2431 8712

714-717N 267 0957 2698 9969

717N-720 0 0000 2698 9669

721-724N 92 0331 2790 1 0000

724N-727 0 0000 2790 10000

728-731N 0 0000 2790 1 0000

731N-83 0 0000 2790 1 0000

2790 10000

42

Dates

714-717N

717N-720

721-724N

724N-727

728-731N

731N-83

84-87N

87N-810

811-814N

814N-817

818-821N

821N-824

825-828N

828N-831

91-94

TABLE 3B Unalakleet River Species Apportionment by Test Period Coho Salmon

3-Day Count

583

338

436

550

2650

1174

793

1435

5074

1280

435

2265

171H3

1983

Proportion of Season Total

0000

0000

0000

0343

0199

0256

0323

1558

0690

0466

0843

2983

0752

0256

1331

Cumulative Count

583

921

1357

1907

4557

5731

6524

7959

13033

14313

14748

17013

Cumulative Proportion

0000

0000

0000

0343

0542

0798

1121

2679

3369

3835

4678

7661

8413

8669

10000

43

------------------------------------------------------------------

------------------------------------------------------------------

----- ------

TABLE 3C Unalakleet River Species Apportionment by Test Period Pink Salmon 1983

3-Day P roport ion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 0 0000

6l2N-615 0 0000

616-6l9N 97 0012

6l9N-622 332 0036

623-626N 1245 0136

626N-629 6624 0721

630-73N 3699 0403

73N-76 10762 1171

77-7l0N 7704 0838

710N-7l3 8529 0928

714-717N 9771 1063

717N-720 13845 1507

721-724N 11361 1236

724N-727 6544 0712

728-731N 3545 0386

731N-83 1628 0177

84-87N 1224 0133

87N-810 1777 0193

811-814N 802 0087

814N-817 561 0061

818-821N 533 0058

821N-824 8313 13091

825-828N 468 0051

828N-831 0 0000

91-94 0 0000

91881 10000

0 0000

0 0000

0 0000

97 0012

429 0048

1674 0184

8298 0905

11997 1308

22759 2479

30463 3317

38992 4245

48763 5308

62608 6815

73969 8051

80513 8763

84058 9149

85686 9326

86910 9459

88687 9652

89489 9739

90050 9800

90583 9858

91413 9949

91881 10000

91881 10000

91881 1 0000 44

------------------------------------------------------------------

------------ ------------------------------------------------------

----- ------

TABLE 3D Unalakleet River Species Apportionment by Test Period Chum Salmon 1983

3-Day Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 100 0017

612N-615 268 0046

616-619N 838 0144

619N-622 1180 0202

623-626N 2744 0471

626N-629 1569 0270

630-73N 796 0137

73N-76 2972 0510

77-710N 2068 0355

710N-713 2622 0450

714-717N 4133 0710

717N-720 5596 0960

721-724N 4978 0854

724N-727 8974 1540

728-731N 2241 0385

731N-83 2079 ~0357

84-87N 3009 0516

87N-810 2432 0417

811-814N 937 0161

814N-817 454 0078

818-821N 2584 0443

821N-824 2739 0470

825-828N 1783 0306

828N-831 765 0131

91-94 412 0070

58273 10000 45

0 0000

100 0017

368 0063

1206 0207

2386 0409

5130 0880

6699 1150

7495 1287 f

10467 1797

12535 2152

15157 2602

19290 3312

24886 4272

29864 5216

38838 6666

41079 7051

43158 7408

46167 7924

48559 8341

49536 8502

49990 8580

52574 9023

55313 9493

57096 9799

57861 9930

58273 1 0000

-------------------------------------------------------------

------------------------- ------------------------------------

TABLE 4 Unalakleet River Test Net Proportions by Sample Perio-d 1983 ( Selective CPUE)

Dates Chinook Coho Pink Chum Misc

64-68 105 00 00 895

69-612N 24 00 83 893

612N-615 1C~ 5 00 61 834

616-619N 78 18 156 748

619N-622 23 45 160 772

623-626N 65 112 247 576

626N-629 22 553 131 294

630-73N 16 576 124 284

73N-76 10 572 158 260

77-710N 00 555 149 296

710N-713 00 540 166 294

714-717N 14 00 513 217 256

717N-720 00 00 532 215 253

721-724N 04 00 493 216 287

724N-727 00 18 202 277 503

728-731N 00 23 242 153 582

731N-83 00 30 112 143 715

84-87N 44 98 241 617

87N-810 182 122 167 529

811-814N 139 95 111 655

814N-B17 96 68 55 7B1

B18-B21N 105 39 1B9 667

821N-824 263 43 142 552

825-B28N 145 53 202 600

828N-831 97 00 171 732

91-94 396 00 72 532

46

--------

--------

TABLE 4 Una1ak1et River Test Net Proportions 1983 ( Selective CPUE) (Continued)

Comparative Apportionment

Species Apportionment

Chinook 2790 Coho 17013 Pink 91881 Churn 58273

------shySubtotal 169957

Misc Species 152537 ------shy

Total 322494

Substrate Comparison -------------------shy

Bank Counts -----shy

South 148465 North 174029

------shy

Total 322494

Percent of Total Counts

09 53

285 181

5408

472

1000

Percent

460 540

1000

47

-------------------------------------------------------------------

TABLE 5A Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

May 27 28

21 5 482

13 13

1313

1313 21 5 697

13 13

1313

1313 30 240 0 013 937 0 00 31 246 2 41 1183 2 08

June 1 237 0 00 1420 2 07 2 3

256 585

13 13

013 bull 13 13

1676 2 261

2 2

6bull 13 4

5 6 8

160 120 middot 125

13 1

13 42 130

2 421 2541 2666

~ 2 3 3

bull 13 4 136 136

9 122 0 130 2788 3 05 11 117 00 2905 3 05 12 126 13 00 3031 3 05 13 117 1 43 3148 4 06 15 118 0 013 3266 4 136 16 116 1 43 3382 5 138 18 240 13 130 3622 5 07 19 121 0 00 3743 5 07 20 116 0 00 3859 5 136 22 118 1 42 3977 6 138 23 119 1 42 4196 7 08 25 240 0 013 4336 7 138 26 119 13 1313 4455 7 138 27 119 13 1313 4574 7 138 29 1213 13 130 4694 7 137 313 1213 13 00 4814 7 07

July 2 238 0 1313 51352 7 07 3 118 13 013 51713 7 07 4 118 1 42 5288 8 138 6 122 0 00 5410 8 07 7 116 13 00 5526 8 07

10 126 0 1313 5652 8 07 11 119 0 013 5771 8 07 13 116 13 130 5887 8 07 14 119 2 84 6006 10 07 17 122 0 00 6128 10 07 18 112 0 1313 6240 10 136 20 119 13 00 6359 10 06 21 112 0 013 6471 10 06

6471 10

48

------------------------------------------------------------------

------------------------------------------------------------------

TABLE 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983

Cum Cum Date Hours Catch CPUE Hours Catch CPUE

July 24 26

115 120 0 00

115 235

0 0

00

00 27 117 4 00 352 0 00 29 117 0 137 469 4 34 31 116 3 103 585 7 48

August 2 122 0 00 706 7 40 3 122 2 66 828 9 43 5 118 1 34 946 10 42 7 128 14 437 1074 24 89 9 257 14 218 1331 38 114

10 125 21 672 1456 59 162 12 13 middot- 0 00 1469 x 59 161 14 10 7 12 449 1576 71 180 16 122 2 66 1698 73 172 17 123 6 196 1821 79 174 19 118 1 34 1939 80 165 21 112 6 214 2051 86 168 23 120 3 100 217 1 89 164 24 115 2 70 2286 91 159 26 115 5 174 2401 96 160 28 119 0 00 2520 96 152 30 119 4 1 34 2639 100 152 31 117 1 34 2756 101 147

Sept 2 123 5 33 2879 106 147 4 479 15 125 3358 121 144 6 238 11 185 3596 132 147 7 237 5 84 3833 137 143 8 238 6 1 01 4071 143 141 9 242 10 1 65 4313 153 142

10 242 3 50 4555 156 137 11 242 2 33 4797 158 132 12 241 8 133 5038 166 132 14 227 14 247 5265 180 137 15 242 9 149 5507 189 137 16 210 3 57 5717 192 134 17 239 2 33 5956 194 130 18 230 2 35 6186 196 127 20 489 4 33 6675 200 120 21 24 3 50 6915 203 117 22 242 0 00 7157 203 113 23 234 1 17 7391 204 110

----shy

7391 204

Mesh size = 5 14 from 724 to 810

49

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TABLE 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE ------~-----------------------------------------------------------June 16 122 1 33 122 1 33

17 118 0 bull 0 0 240 1 17 20 120 2 67 360 3 33 21 118 0 00 478 3 25 23 119 2 67 597 5 34 24 119 3 102 716 8 45 27 116 19 655 832 27 130 28 120 22 733 952 49 206 30 120 40 1333 1072 89 332

July 1 115 36 1252 1187 125 421 4 122 30 983 1309 155 474 5 114 47 1649 1423 202 568 7 118 30 1016 1541 232 602 8 120 shy 24 800 1661 -$ 256 616

11 122 42 1377 1783 298 669 12 120 29 967 1903 327 687 14 116 37 1276 2019 364 721 15 118 40 1356 2137 404 756 18 121 60 1976 2258 464 822 19 119 30 740 2377 494 831 21 125 61 1952 2502 555 887 22 118 25 847 2627 580 883 25 122 16 525 2749 596 867 26 116 15 517 2865 611 853 28 122 28 918 2987 639 856 29 117 11 376 3104 650 838

August 1 120 7 233 3224 657 815 2 119 9 303 3345 666 796 4 120 3 100 3465 669 772 5 118 5 170 3583 674 752 8 114 7 245 3697 681 734

11 123 7 337 3 82 0 688 720 15 118 2 68 3938 690 701 16 113 5 177 4051 695 686 18 98 3 122 4149 698 673 19 119 1 34 4268 699 655 22 112 0 00 4380 699 638 23 115 0 00 4495 699 622 25 120 2 66 4615 701 606 26 112 1 36 4727 702 594 29 116 0 00 4843 702 580 30 11 5 0 00 4958 702 566

Sept 1 115 0 00 5079 702 553 2 112 0 00 5191 702 541

----shy5079 702

50

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TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

June 5 73 0 00 73 0 00 7 126 0 00 199 0 00 8 127 0 00 326 0 bull 0 0

10 11 4 3 105 440 3 27 12 113 2 71 553 5 36 14 119 1 34 672 6 36 15 116 4 138 788 10 51 17 116 3 103 904 13 56 19 118 6 203 1022 19 74 21 118 0 00 1140 19 67 22 117 10 342 1257 29 92 24 116 3 103 1373 32 93 26 119 11 370 1492 43 115 28 11 8 6 203 1610 $ 49 122 29 115 13 452 1725 62 144

July 1 119 8 269 1844 70 152 3 119 17 571 1963 87 177 5 119 13 437 2082 100 192 6 12 0 17 567 2202 117 213 8 121 7 231 2323 124 214

10 11 4 18 632 2437 142 233 12 115 12 417 2552 154 241 13 116 37 1276 2668 191 286 15 117 16 547 2785 207 297 17 11 8 31 1051 290 3 238 328 19 118 18 610 3021 256 339 20 115 29 1009 3136 285 364 22 122 17 557 3258 302 371 24 115 24 835 3373 326 387 26 120 19 633 3493 345 395 27 117 11 376 3610 356 394 29 117 14 479 3727 370 397 31 116 18 621 3843 388 404

August 2 121 9 298 3964 397 401 3 122 17 557 4086 414 405 5 11 8 8 271 4204 422 402 7 128 19 594 4332 441 407 9 257 10 156 4589 451 393

10 125 14 448 4714 464 394 12 13 1 308 4727 465 393 14 107 5 187 4834 470 389 16 122 4 131 4956 474 383 17 123 15 488 5079 489 385 19 118 8 271 5197 497 383 21 112 3 107 5309 500 378 23 120 6 200 5429 506 373 24 115 7 243 5544 513 370

51

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TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 (Continued)

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

August 26 115 5 174 5657 518 366 28 119 1 34 577 6 519 359 30 119 4 134 5895 523 355 31 117 0 00 6012 523 3 48

Sept 2 123 3 98 613 5 526 343 4 479 2 17 6614 528 319 6 238 1 17 6852 529 309 7 237 0 00 7089 529 298 8 9

238 242

1 2

17

33 7327 7569

clt

530 532

289 281

10 242 3 50 7811 535 274 11 242 0 00 8053 535 266 12 241 2 33 8294 537 259 14 227 3 53 8521 540 253 15 242 0 00 8763 540 246 16 210 1 19 8973 541 241 17 239 2 33 9212 543 236 18 230 0 00 9442 543 230 20 489 0 00 9931 543 219 21 240 2 33 10171 545 214 22 242 0 0 10413 545 209 23 234 0 00 10647 545 205

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10647 545

52

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------

TABLE 6A Unalakleet River Sonar Site Drift Sets5 1 4n Me sh 19 83 bull

Date Time Result

July 19 1405-1413 1 burbot July 23 1040-1055 1 pink caracass July 27 1520-1530 1 coho August 3 1444-1501 4 coho August 22 1930-1937 0 August 23 937-943 1 coho 1 pink carcass August 26 1117-1127 1 coho 3 churn August 31 1018-1034 3 churn

TABLE 6B Unalakleet River Sonar Site Beach Seines 1983

Date Time Distance Result

July 20 1445 120 meters 4 pink 1 churn 13 Dolly Varden 1 whitefish

July 25 1500 120 meters 6 pink 1 churn 1 Dolly Varden 4 whitefish 1 grayling

July 28 1700 120 meters 4 coho 2 pink 2 churn 1 Dolly Varden

August 1 2010 300 meters 4 pink 3 churn 8 Dolly Varden

August 4 1015 130 meters 5 coho 3 pink 3 churn 65 Dolly Varden 3 whitefish 3 grayling

August 24 1110 130 meters 18 coho 2 Dolly Varden 2 grayling

August 29 1715 120 meters 11 coho 1 pink 69 churn 1 Dolly Varden 2 grayling

Seine done at mile 12 Unalakleet River

53

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TABLE 7 AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER CATCH SAMPLE SPORT CATCH AND SPAWNING SURVEYS 1983

II

COMBINED 3-2 4-2 4-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 31 646 6702 5 104 5010 8 167 5688 1 21 5900

Female 17 354 8540 o o 1 21 5450 o o

Total 48 1000 7353 5 104 5010 9 188 5661 1 21 5900

~ 11)

5-2 6-2 7-2 7-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 11 229 7382 6 125 8350 0 0 0 0

Female 2 42 7925 12 250 8742 1 21 10650 1 21 8350

Total 13 271 7465 18 375 8611 1 21 10650 1 21 8350

TABLE 8A AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER TEST NET SAMPLE 1983

-----~-------------------------------------------------------------------------------------------------------

gt

COMBINED 4-2 5-2 5-3 6-2 7-2 NO LENGIH NO LENGIH NO LENGIH NO LENGTH NO LENGTH NO LENGTr

8 14 n

Male 3 333 8107 0 1 111 5800 o 0 2 222 9260 0 0 Female 6 667 8295 0 0 1 111 7600 o o 4 444 8310 1 111 8930 Total 9 10 e 0 8232 0 o 2 222 6700 o o 6 667 8627 1 111 8930

If) If)

5 14 Male 19 1000 6298 12 632 5392 4 211 6990 0 o 3 158 8997 0 0 Female o 0 o o o o o o 0 0 0 0 Total 19 1000 6298 12 632 5392 4 211 6990 o o 3 158 8997 0 0

4 n or Smaller Male 6 667 5930 1 111 4660 2 222 6325 3 333 6090 0 o 0 o Female 3 333 8970 o o o o o o 3 333 8970 0 o Total 9 1000 6943 1 111 466 2 222 6325 3 33 3 6090 3 33 3 8970 0 0

TOTAL Hale 28 757 6413 13 351 5336 7 189 6630 3 8 1 6090 5 13 5 9102 o 0 Female 9 243 852 o o 1 27 7600 o o 7 189 8593 1 2 7 8930 Total 37 1000 6925 13 351 5336 8 216 6751 3 8 1 6090 12 324 88 e 5 1 2 7 8930

---------------------------------------------------------------------------------------------------------

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TABLE 8B AGE SEX AND SIZE COMPOSITION OF NORTON SOUND COHO SALMON UNALAKLEET RIVER TEST NET SAMPLE 5 14 AND 5 78 GEAR 1983

COMBINED 3-2 4-3 4-4 5-4 NO LENGIH NO LENGIH NO LENGTH NO LENGIH NO LENGTH

Male 9 900 5489 0 0 9 900 5489 0 0 Female 1 10 bull 0 552 QJ QJ 0 1 10QJ 5520 0 0 Total 10 1000 5492 0 0 10 1000 5492 0 0 725-731

bull LI)Male 15 938 5645 15 938 5645 Female 1 62 575 QJ 1 62 575 QJ Total 16 lQJ0QJ 5651 16 100QJ 5651 81-87

Male 24 545 5668 23 523 5768 1 23 3350 Female 20 455 5631 20 455 5631 0 0 Total 441QJ0QJ 5651 43 977 57 QJ 4 1 23 335 QJ 88-814

Male 7 500 5797 7 500 5797 QJ 0 Female 7 500 5596 6 429 5587 1 71 5650 Total 14 1000 5696 13 929 1 71 5650570 815-821

Male 5 455 5492 5 455 5492 Female 6 545 5552 6 545 5552 Total 11 lQJ00 5525 11 100QJ 5525 822-828

LIST OF FIGURES Page

Figure 1 Unalakleet Escapement Project bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 14

Figure 2 Sonar Site Schematic bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 15

Figure 3 Unalakleet King Salmon Subsistence Survey 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 16

Figure 4A Specie Apportionment King Salmon Unalakleet Sonar 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 17

Figure 4B Specie Apportionment Coho Salmon Unalakleet Sonar 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 18

Figure 4C Specie Apportionment Pink Sa1monr Unalakleet Sonar 1983 bullbullbullbullbullbullbullbullbullbull ~ bullbullbullbullbullbullbullbullbullbullbullbullbull 19

Figure 4D Specie Apportionment Chum Salmon Unalakleet Sonar 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 2~

Figure 5 Specie Apportionment Unalakleet Sonar 1983 bullbull 21

Figure 6 Sector Distribution of Counts Unalakleet Sonar 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 22

Figure 7 Hourly Distribution of Counts Unalakleet Sonar 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 23

Figure 8 Unalakleet River Test Fishing Daily King CPUE in 8 14 Mesh 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 24

Figure 9 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 Mesh 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 25

Figure 1~ Unalakleet River Test Fishing Daily Coho CPUE in 5 78 Mesh 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 26

Figure 11 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 Mesh 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 27

Figure 12 Unalakleet River Test Fishing Daily Pink CPUE in 4 Mesh 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 28

Figure 13 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 Mesh 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 29

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Page Figure 14 Unalakleet River Test Fishing Daily CPUE in

5 14 and 5 78 Mesh 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 3~

Figure 15 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 14 and 5 78 Mesh 1983 bullbullbullbullbull 31

Figure 16 Unalakleet River Test Fishing Catch Proportions1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 32

Figure 17 Unalakleet Area Temperatures 1983 bullbullbullbullbullbullbullbullbullbullbullbull 33

Figure 18 Unalakleet River Turbidity and Depth 1983 bullbullbullbull 34

Figure 19 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 Mesh 1981-1983 bullbullbullbullbullbullbullbullbullbullbull 35

Figure 2~ middotUna1ak1eet River Test Fishing Cuciu1ative Chum CPUE in 5 78 Mesh 1981-1983 bullbullbullbullbullbullbullbullbullbullbull 36

Figure 21 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 Mesh 1981-1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 37

Figure 22 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 Mesh 1981-1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 38

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LIST OF TABLES

Table 1 Page

Unalakleet River Subsistence King Salmon Index 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 39

Table 2 Unalakleet River Final Sonar Counts 1983 bullbullbullbullbull 40

Table 3A Unalakleet River Species Apportionment by Test Period - King Salmon 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 42

Table 3B Unalakleet River Species Apportionment by Test Period - Coho Salmon 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 43

Table 3C

Table 3D

Unalakleet River Species Apportionment by Test Period - Pink Salmon 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 44

Unalakleet River Species Apportionment by Test Period - Chum Salmon 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 45

Table 4 Unalakleet River Test Net Proportions by Sample Period 1983 (selective CPUE) bullbullbullbullbullbullbullbullbullbull 46

Table SA Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983 bullbullbullbullbull 48

Table 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983 bullbullbull 49

Table 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983 bullbull 5~

Table 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 51

Table 6A Unalakleet River Sonar Site Drift Sets 5 14 Mesh 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbull 53

Table 6B Unalakleet River Sonar Site Beach Seines 1983 bullbullbullbullbullbullbullbullbull ~ 53

Table 7 Age Sex and Size Composition of Norton Sound King Salmon Unalakleet River Catch Sample Sport Catch and Spawning Surveys 1983 bullbullbullbullbullbullbullbull 54

Table 8A Age Sex and Size Composition of Norton Sound King Salmon Unalakleet River Test Net Sample 1983 bullbullbullbullbullbullbullbull 55

-ivshy

Page Table 8B Age Sex and Size Composition of Norton Sound

Coho Salmon Unalakleet River Test Net Sample 5 14n and 57811 Gear 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 56

Table 8C Age Sex and Size Composition of Norton Sound Chum Salmon Unalakleet River Test Net 5 1 4 n and 5 7 8 Gea r 19 8 3 bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull 5 8

Table 9A Age Sex and Size Composition of Norton Sound King Salmon Unalakleet Commercial Catch Sample 1983 bullbullbullbullbullbull 61

Table 9B Age Sex and Size Composition of Norton Sound Sockeye Salmon Unalakleet Test Net Sample 5 78 11 5 14 n 4n and Variable Mesh Nets 1 98 3 bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull e $ bull bull bull bull bull bull bull bull bull bull bull 6 2

Table 9C Age Sex and Size Composition of Norton Sound Coho Salmon Unalakleet Commercial Catch Sample 1983 bullbullbullbullbullbullbullbull 63

Table 9D Age Sex and Size Composition of Norton Sound Chum Salmon Unalakleet Commercial Catch Sample 1983 bullbullbullbullbullbullbullbullbullbullbull 64

Appendix Table lAo Unalakleet River Test Net King Salmon Catches 1981-1983 8 1411 Mesh bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 65

Appendix Table lB Unalakleet River Test Net King Salmon Catches 1982-1983 5 Gear bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 67

Appendix Table lC Unalakleet River Test Net Coho Salmon Catches 1981-1983 5 78 n Mesh bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 68

Appendix Table ID Unalakleet River Test Net Pink Salmon Catches 1981-1983 4 n Me sh bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 70

Appendix Table IE Unalakleet River Test Net Chum Salmon Catches 1981-1983 5 78 Mesh bullbullbullbullbullbullbullbull bull bullbullbullbullbullbullbullbullbullbullbullbullbullbull 72

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INTRODUCTION

The Unalakleet River empties into Norton Sound approximately 130 miles southeast of Nome is approximately 130 miles in length and drains an area of 1087 square miles The Unalakleet River flows from the Nulato hills westward to the town of Unalakleet on the Bering Sea coast Five major tributaries comprise the river all of which support spawning salmon

The town of Unalakleet is situated at the mouth of the Unalakleet River the most important salmon producing river in Norton ~ound Historically the people of the area have depended on the salmon runs for their liveli~ood first as food for themselves and their dogs and more recently as the basis of their cash economy

Attempts to assess salmon escapement to the system have been made annually by aerial stream surveys counting towers on the North River in 1973 and 1974 and on the Chirosky River during 1975 and 1976 Weather and water clarity have often limited these enumeration efforts but escapement estimates have ranged as high as 1477 king (1977) 28600 churn (1978) 491706 pink (1978) and 1184 coho salmon (1980) not including major tributaries

A salmon subsistence survey is conducted by the Commercial Fisheries Division each year in Unalakleet Results have indicated that sUbsistence catch averages have been increasing in recent years The recent five-year average 1978 to 1982 subsistence salmon catches were 922 king 4694 coho 13019 pink and 3840 chum salmon Coho and pink salmon catches have shown the greatest increases due largely to increased returns of these species

Commercial catches in the Unalakleet subdistrict have also increased due to increased effort better technology and the increased returns of coho and pink salmon The recent five-year average (1978-1982) commercial catch for the Unalakleet subdistrict is 5629 king 28427 coho 131016 pink and 43086 chum salmon In 1982 the average commercial fisherman received approximately $6000 from the sale of salmon

Because of the importance of the commercial and subsistence

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fisheries and the problems of estimating escapement in this subdistrict side-scanning sonar was installed in 1982 in the Unalakleet River in hopes of gaining a more accurate estimate of escapement and at the very least a more consistent index of salmon migration

A test fishing program was in operation in 1981 in the lower four miles of the Unalakleet River Indices from this study were instrumental in helping the area biologist set some commercial fishing periods In 1982 sonar counts proved useful as an index of the coho salmon escapement and were used by the area biologist in extending the coho fishery

A number of problems affecting sonar counts became more apparent during the 1983 season These problems brought on by low river velocity (13 to 17 fps) and tidal f1uctuationi included milling salmon and allocating counts to five different fish classifications

With increased harvest effort on the chinook population a limited sport fish survey was begun

This report presents the results of the Unalakleet sonar projects second year of operation and comparison of test fishing indices from 1981 to 1983

METHODS

Project Deployment

Supplies and equipment were on-site and camp construction was completed on May 28 Both north and south bank counters were in operation on June 4 Sonar counter operation ceased on September 4 91 days after counting was initiated By September 6 the sonar camp had been dismantled and the equipment stored for the winter

Test fishing began on May 27 and ended on September 23

Sonar

The Electrodynamics Division of the Bendix Corporation developed a side- scanning hydroacoustic counter during the 1970s capable of detecting and counting salmon migrating along the banks of tributary streams The side-scan sonar counter is designed to transmit a sonic beam along a 60 foot aluminum tube or substrate

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Echoes from fish passing through the beam are reflected to the transducer The systems electronics interpret the strength and number of the echoes and tally fish counts

Two Bendix side-scan counters 1981 models were used on the Unalakleet River The respective 60-foot tubular aluminum substrates were deployed from opposite banks of the Unalakleet River Both substrates were positioned so there was at least two feet of water over the sonar beam that is projected immediately above the substrate that is two feet over the transducer housing and seven feet over the target end of the substrate It was found that three feet of water was needed as a buffer to eliminate debris counts due to wind ripples flotsam and sudden water level changes A small weir _ was placed to prevent fish passage inshore from the transducer on both sides of the riverThe substrates were not located directly opposite each other The north bank substrate was located 400 feet upstream from the south bank substrate which was placed in a nearly ideal river bottom profile Unfortunately mud shallows were opposite the south bank During the season fish behavior necessitated movement of the north bank substrate to a site 300 feet downstream of the south bank substrate

The river width at this site is approximately 200 feet The deepest channel is located about 80 feet from shore at the north bank substrate and about 100 feet from shore at the south bank substrate Although one-third of the river is isonified by the sonar beams if fish follow a depth contour then more than two-thirds of the possible fish paths would be covered by the sonar counters

The substrates were moved several times during the summer because of water level changes or for cleaning The substrates were guyed to two dead men each in the form of buried logs held in place with fence posts Stainless steel aircraft cable fastened to each end of the substrate was attached to respective dead men on shore

The cables were roughly parallel and adjusted to hold the substrate perpendicular to shore The inshore cable was long enough to allow the substrate to remain perpendicular to shore even though it might be moved 15 feet from shore The easiest method of movement of the substrate was to use the hydrodynamic shape of the substrate to raise itself and push against the substrate with a handy man jack The inshore footing could then be relocated with a minimum of

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effort

Although the current at the sonar site was insufficient to raise the tube to the surface it did help in pulling it up to a point where it could be cleaned

Calibration (a comparison of oscilloscope fish counts and sonar fish counts) was scheduled four times daily on both banks The magnitude of the fish milling problem compounded by slow fish passage made this schedule impractical much of the summer Calibration was attempted when usable results seemed impossible it was not attempted at extreme rates of fish passage Calibration was done by comparing echoes on a Tektronix 221 oscilloscope with counts of the sonar counter Salmon passing through the sonar beam produce a distinctive oscilloscope trace A count of 100 fish within 30 minutes the maximum calibration period was required before resetting the sonar fish velocity controls

agreement = Sonar computer count Oscilloscope count

The agreement was then used to adjust the daily counts Agreement of less than 1 indicates the sonar was undercounting and greater than 1 indicates overcounting

When the count agreement varied more than 15 then the following equation was used to derive a new fish velocity

agreement x existing velocity = new velocity

Milling fish became a problem on June 28 on the north bank when slow migrating and milling pink salmon oscars started riding the substrate turbulence wave Based on counting tower observations it was determined that all sixteen sectors were affected On July 1 and 2 the substrate was moved approximately 700 feet downstream to the base of a small cliff with somewhat faster water velocity Pink salmon began riding the substrate at the new site within hours Oscars were not a problem on the south bank during this time therefore in order to estimate the passage on the north bank the average hourly passage rate (percent per hour of the daily total) of the preceding three day period of the south bank was used to calculate daily totals for the

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north bank based upon hours which were not apparently effected by oscars

Total of Preceding 3-day valid hourly sum of daily

Daily total--North = counts--north x counts--South Total of corresponding hourly counts for preceding 3 days--south

After two weeks of attempting to deal with milling fish the following policy was decided on The sonar beam was raised slightly so that a strong target was seen in the four degree mode but a decrease in target strength was barely apparent in the two degree mode The offshore end of the substrate was moved middotfive feet downstream from the perpendicular placement used earlier The beam was extended as far as possible beyond the target These measures seemed to eliminate fish avoidance of the substrate as a problem

Other milling problems were not satisfactorily resolved Salmon moving downstream were not counted by the sonar but those same fish moving upstream could be counted by the sonar It was decided to invalidate an hourly count if milling fish were observed from a tower or oscilloscope or if sonar criteria were not met Disqualifying sonar criteria were hourly debris checks or a large fish count over 15 The large fish count indicated fish moving over the substrate in a tight school which was characteristic of milling behavior King salmon in the Unalakleet did not seem to reflect a long enough signal to register as large fish however two or three small salmon could register if they were close to the same distance from the transducer and spaced in an overlapping manner

Records of changes in counter settings river conditions and other unusual occurrences were also used in adjusting daily sonar counts

The large fish counter on the 1981 model sonar counter was ignored except as an index of milling fish

Test Fishing

The same test fishing site as in 1981 and 1982 was used during the 1983 season

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The ten fathom 8 14 gillnet was set from May 27 to May 31 A twenty fathom 8 14 gillnet was set on June 1 and fished until June 4 From June 5 to September 4 the period of sonar operation a rotating schedule of twelve hour time blocks over a period of three days was used The nets used included

1 20 fm 8 14 mesh 2 25 fm 5 14 mesh (June 5-August l025 fm 5 78

mesh (August II-September 4) 3 25 fm 4 mesh 4 15 fm variable mesh

The 25 fm 5 78 mesh gillnet was fished from September 5 to September 25 The 8 14 mesh net and the v~riable mesh net were fished concurrently The three-day rotation schedule allowed each net to be fished during one 12-hour high tidedaylight period and one 12-hour low tidenight period Nets were rotated at 0900 and 2HJ0 daily The 8 14 mesh net was removed from the rotation on July 21 because the chinook migration was completed

The CPUE (catch100 fm-hr) was calculated for the two most efficient nets for each species to be used in apportioning sonar counts These CPUEs for chinook coho pink chum and other species presumably detectable by sonar were totaled and the species CPUE divided by the total CPUE for all species to give the percent of the periods sonar counts to each specie The seventh day of the week was apportioned by using the previous 3-day proportions for one half of the counts and the following 3-day proportions for the second half of the counts

Test net data (Tables 5A 5B 5C and 5D) was calculated for the single most effective net for each species for separate analys is

Weights lengths and scale samples were taken from all chinook coho and chum captured Pink salmon were counted only Tissue samples were taken from test net chinook salmon for electrophoretic studies coordinated by the Stock Separation Section of the Commercial Fisheries Division

Counting Towers

Counting towers were erected immediately adjacent to the

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onshore end of each substrate (Figure 2) As in 1982 the use of visual tower counts for comparison with sonar counts could not be relied upon due to river width surface disturbances etc however several short comparisons were possible The towers proved invaluable in determining the presence of moribund fish debris passage presence of oscars fish swimming behavior etc The 1983 low river level and generally less turbidity as compared to 1982 allowed more rapid and concrete identification of the milling fish Without use of the tower the severity of the milling fish problem may not have been discovered

Drift SetsBeach Seines

Drift sets and beach seines were done for comparison with test net species apportionment and to determine fish passage beyond the sonar counting range Drjft sets were accomplished by drifting a 25 fm 5 14 gillnet perpendicular to the shore The 25 fm net allowed the major portion of the river to be fished thus only one drift was done per set as opposed to 1982 when a drift set was done near each bank Set durations ranged from 5 to 17 minutes dependent upon boat traffic wind conditions etc Drift sets were done on July 19 23 and 27 and August 3 22 23 26 and 31

Beach seines were accomplished by using a 25 fm 3 mesh seine immediately downstream of the south bank substrate Shoreline conditions prevented se1n1ng near either north bank site Beach seines on the south bank were done on July 20 25 and 28 and August 1 and 29 Beach Unalakleet River were done on August 4 and levels prevented seining from August 4 to

seines 24

24

at High

mile 12 water

Riyer Surveys

Two river surveys were attempted during 1983 A jet boat was taken up the North River on July 29 This proved to be early for carcass sampling but weather and equipment problems prevented a later survey

A float trip of the Old Woman and upper Main River was also made A plane landing mishap greatly reduced the scope of this trip Weather prevented any follow up work

Subsistence Surveys

A daily survey of three to five sUbsistence fishermen is

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made from the time the first king salman is caught early in June through the remainder of that month These people must be trustworthy conscientious about checking their nets and fairly successful The average daily catch is compared to the previous day to develope the annual trend and the total catches and the annual trend is compared to past years Commercial catch and effort data and the up-river test net data are used in conjuction with the subsistence catch to anticipate strategies

future catches and management

During late September made of Unalakleet

an The

extensive door to door survey is Annual Management Report covers

subsistence surveys in detail

RESULTS

~istence Survey

The Unalakleet subsistence survey made in late September interviewed 74 subsistence fishermen 68 of whom fished in the river and 17 who fished in the ocean The catch was predominantly from the river with 1480 king 6311 coho 13458 pink and 4124 chum salmon reported The ocean subsistence catch was 388 king 577 coho 350 pink and 277 chum salmon

The mean chinook salmon catch per fisherman peaked on June 16 This compares with July 3 in 1982 and June 19-22 in 1981 All subsistence fishermen surveyed in 1983 were fishing within one mile of the river mouth

Chinook subsistence survey results are presented in Table 1 and Figure 3 As in 1981 and 1982 the variances in nets fishing times and net locations call for calculation of mean catch per fisherman as opposed to catch per unit effort

Sonar

During the period from June 4 to September 4 the final sonar count was 322494 148465 (460) counts were tallied on the south bank and 174029 (540) counts were tallied on the north bank

The daily sonar counts (Table 2) were adjusted by the test net proportions (Table 4) to give the following escapement estimates for the period June to September 4

-8shy

Species Total Count LQf Total

Chinook 2790 09 Coho 17013 53 Pink 91881 285 Chum 58273 181 Other 152537 AL2

322494 1000

Tables 3A 3B 3C 3D and 4D present this data by 3-day sample period Based on discussions with Al Menin and Dave Gaudet about the ability of sonar counters to discriminate between various target shapes and sizes any fish two and one half pounds or laterally compressed fish ~f one pound or larger could be counted by a sonar calibrated for pink salmon Fish other than salmon considered countable by the sonar counter included arctic char grayling burbot and broad humpback and Alaska whitefish

Peak adjusted apportioned sonar counts were on June 23 for chinook August 21 for coho July 18 for pink and July 25 for chum salmon (Tables 3A 3B 3C and 3D Figures 4A 4B 4C and 4D)

Representative passage rates on the south bank by sector and by hour for July 3-5 and August 21-23 are presented in Figures 6 and 7 These periods were chosen because of minimal adjustments to raw counts north bank counts are not presented due to lack of relatively clean data for those periods

Test Fishing

A total of 19 chinook (74 male - 26 female) 294 coho (61 male 39 female) 1156 pink (52 male - 48 female) and 915 chum (54 male - 46 female) was captured from May 27 to September 23 The fish were sampled and delivered to Hartha Nanouk a local subsistence fisherman as per agreement for the use of her traditional set-net site

Based on the single most effective test net CPUE the chinook migration did not peak as such but rather showed most consistent catches on June 22 and 23 coho migration peaked from August 10-14 pinks from July 18-22 and chum on July 13

-9shy

Comparisons of daily CPUE and cumulative CPUE for all salmon species are presented in Tables SA 58 5C and 5D and Figures 8 thru 15 Of interest although not as useful for annual comparison due to different test net methods net mesh sizes fishing time etc the actual fish caught from 1981 to 1983 are

~ 1982 un 41 chinook 39 chinook 39 chinook

107 coho 310 coho 294 coho 1463 pink 5114 pink 1156 pink

722 chum 375 chum 915 chum

f

Age Sex and Size Composition of Test Net Catches

An age analysis of scales collected during the project indicated the following age compositions king salmon all gear sizes (4-2131 5-2 22~ 5-3816-23217-2 3) coho salmon 5 14 and 5 78 gear (3-2 051 4-3 981 4-4 051 5-4 l) chum salmon 5 14 and 5 78 gear (3-1 21 4-1 611 5-1 37) Tables 7 thru 9D show the age composition of the various species broken down by date and the mesh sizes used during the project

Counting Towers

As cited visual tower counts could not be made on the Unalakleet River due to river width surface disturbances turbidity etc However visual observations proved invaluable in identifying spawning behavior etc and resulted in the downstream relocation of the north bank substrate and development of the method used to adjust north bank sonar counts

Drift SetsBeach Seines

Tables 6A and 68 present the results of drift sets and beach seines respectively Drift set results indicate that the portion of the river not isonified was not used by migrating salmon ie the species most countable coho pink and chum salmon would seem to follow the banks and were counted by the side-scan sonar

Beach seines proved useful in verifying the high presence of

-10shy

species other than salmon the relative abundance of coho salmon in August and the presence of spawning churn salmon in the south bank substrate area

Riyer SurveysAerial SurVeys

On July 29th 32 miles of the North River were surveyed by a two-person crew for the purpose of counting live chinook and sampling chinook carcasses A total of 166 live chinook were counted and 3 chinook carcasses were sampled with approximately half of the chinook counted between mile 25 and mile 32

Originally the Old Woman River survey was to be a six-day trip Due to the damage the plane suffered dropping the first crew member off the second member and support gear was not av~ilable for the survey as planned~ The survey of the Old Woman River August 6-8 counted 60 king salmon but only four samples were collected Weather prevented the survey of the main river

King Salmon Spo rt Fish Survey

A sport fishing lodge on the Unalakleet River is responsible for the majority of the sport fishing effort Periodic surveying of lodge personnel indicates that a fair quantity of king salmon are harvested by sport fishing A quantitative survey was not done however due to limited time available A total of 43 chinook was sampled from sport fishing catches

DISCUSSION

River levels were lower than normal during the spring of 1983 due to the lack of snow accumulation the previous winter The Unalakleet River cleared early and became quite low during late June and early July The low water allowed the counting towers at the sonar site to be used during calm survey days which wasnt possible during 1982

Tower observations made as early as June 28 showed serious milling problems at the north bank sonar site The sonar was moved to a new site on July 2 Milling fish were still a considerable problem at the new site but about half the hourly count were considered acceptable during mid-July Milling salmon were a problem through most of the field season Milling salmon of all four species were observed

-11shy

during the latter half of each respective migration Pink salmon presented the worst problem and churn the least Unfortunately milling pinks invalidated the churn count since the two runs overlap Coho salmon exhibited some milling but an accurate evaluation of this problem was hampered by turbid water Milling coho became a problem after August 20

The milling observed from the towers was not apparent to the observer at the oscilloscope because of the overwhelming number of spikes present at that stage of the salmon migration During 1982 when tower observations were not possible the oscilloscope appeared to have an extraordinary number of spikes The large pink salmon count recorded in 1982 may have been an artifact of milling behavior that was unobservable then Commercial catch and test net catch statistics indicate a large pink salmon run f However it is likely fish milling over the substrate exaggerated the sonar count although without tower observations it can not be proven

Another problem observed during the 1983 field season was avoidance of the substrate by all fish species This problem was at its worst when water was low and clear Angling the substrate slightly downstream as it was after July 15 helped considerably By extending the sonar beam periodically it was determined that as visibility decreased so did avoidance

Species apportionment of the sonar count was done using test net catches Some of the problems encountered with the sampling scheme should be pointed out Test nets were assumed to sample the same portion of the river as the sonar Since three net lengths were used this seemed suspect Different species migrate at different depths The non-salmon species tend to migrate in shallow water near shore and generally the larger species migrate in deeper water nearer mid-stream Since only a IS-fathom net of the most efficient type for non-salmon species was fished in the preferred habitat for these fish it is likely that the calculated efficiency was too high The other test nets were longer and also sampled some preferred areas for the targeted species

The opposite case is true for king salmon The 8 14 net is 20 fathoms longS fathoms shorter than the other nets used on this project This net does not cover all of the area preferred by king salmon This means king salmon

-12shy

escapement is probably underestimated but the 20 fathom net samples an area further out than the sonar counter even with its beam extended So the number of king salmon counted by the sonar is over estimated King salmon make up such a small percentage of the total salmon run that counting errors are more significant than this apportionment error

Very few churn and pink salmon were caught in the offshore end of the nets It is assumed these long nets had very little effect on the sonar count species apportionment

CONCLUSION

The feasibility of counting salmon in the Unalakleet River using side-scanning sonar is unlikely due to milling fish and the inal1ility to accurately apportion the sonar count to the various fish species It is possible that a partial escapement count could be made further up river above one or more of the major tributaries to the system The new north bank sonar site that showed some improvement over the former site had two differences that seemed to affect salmon migration The current was faster over the substrate at the second site and the river gravels were less ideal spawning habitat The new site was located below a rock bluff on the outside of a river bend

There are two similar sites up river about ten miles where the current is faster and the bottom is even less conducive to spawning During the 1984 field season a comparison of the smoother running south bank site and these up-river sites could be made The best time to do this would be during August when only coho salmon are migrating The counter should be operating by August 15 prior to milling activity and maintained for a week to evaluate if milling salmon became apparent later after the migration peaked The south bank site could be used as a control for comparison to 1983

-13shy

I I

5 1 2

Miles No tt h _

shy

R Iv er

Figure 1 Unalakleet Escapement Project

lt

Son sr

Fig u r e 2 S 0 0 a r Sit eSc hem a tic

ITower

Original Ninth Bank Sonar

Drift sets 5 minutes

Lf)

So t h Ban k Son a

lTower

o Work Tent

B Living Quarters

Figure 3Unalakleet Subsistence Survey 1983

Kin g- S a I m 0 n

1bull

10

9

c 8aI

-lE 11 t a til 7 ~ II 6 ~ U

5 til

0

c 4 til til

E 3 I

1 V

~ 2

1

27 1 5 10 15 20 25 30

~ June

Figure 4A Specie apportionment king salmon Un-alakleet sonar 1983

~

25

-l20

c 1 5 III () III

11

10

5

I

J

27 31 5 10 15 20 25 30 5 10 15 20 25 31

June Ju Iy

Figure 4B Specie middotapp~~tionment coho salmon Unalakleet sonar 1983

30

25

co ~

20

1 t~

C $

u 1 5 CD a

10

5

5 10 15 20 25 31 5 10 15 20 25 31 5

Ju August Sept e

Figure 4C Specie apportionment pink salmon Unalakleet sonar 1983

1 6

1 5

14

1 3

12

1 1

c II U CII

Ashy

10

9

a

7

01 ~

6

5

4

3

2

1

1 5 10 1 5

June

2 O 25 30 5 10 15 20

Ju Iy

25 31 5 10 15 20

August

25 31 5 10

Septem

Figure 40 Species apportionment chum salmon Unalakleet sonar 1983

16

1 5

1 4

13

1 2

1 1

10

9 c 8GI U

GI middot7 A

6

5

4

3

2

1

~

o N

~

1 5 10 15 20 25 30 5 10 15 20 25 3 1 5 10 15 20 25 31 5 10

June Ju Iy August Sept e

Figure 5 Specie apportionment Unalakleet sonar 1983

50

4

40

35

c J 30 0 U

~ 0 25 0 c Q)

u ~

Q) 20a

15

10

5

o L-_lt---__

King Coho Pink Chum Misc

21

----

Figure 6 Sector distribution of counts Unalakleet sonar1983

35

30

25

c 20 G)

() G) 15

0

10

5

35

30

25 c G)

() 20

G)

0 15

10

5

( s ()u t h ban k )

July 3-5

~-2 4 6 8 1 0 1 2 1 4 1 6shy

Sector

August 21-23

2 4 6 8 10 12 14 16

Sector

22

Figure 7 Hourly distribution of counts Unalakleet sonar 1983

(south bank)

14

12

10

c 8 GI U ~

6

July 3-5

~GI

I =~ Q

4

2 0

2 4 6 8 10 12 14 1 6 18 20 22 24

TIme

9

8

7

6

5 c GI U ~ 4 GI

Q

3

2

August 21-23

1

0

2 4 6 8 10 12 14

TIme

16

23

18 20 22 24

Figure 8 Unalakleet River Test Fishing Daily King CPUE in 8 14 mesh 1983

10

9 N

8 shy

7 I 0 c 6E

n

l J I I

0 0 5 c (J 4 co 0

3

2

1

I I

27 1 5 10 15 20 25 1 5 10 15 20 25 31

~ June July

Figure 9 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1983bull

~

middot10

09 U N

I 08 0 c 07E I ()

- 06 E-0 0 05 shy~ () 04 ca - ()

03E I 0 02

01

27 1 5 10 15 2Q 25 1 5 10 15 20 25 31

June July

Figure 10 Unalakleet River Test Fishing Daily Coho CPUE in 5 78 mesh 1983

1

6

5

I 0

NI II I 0 t

E 4

0 0 c 3() cu 0

2

1

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sept U

Figure 11 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1983

200

175

150

I 0 c 125E I ()

E

r-shy-0 I I N 0 100 c ()-as ()

75E I 0

50

25

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sel ber

20

Figure 12 Unalakleet River Test Fishing Daily Pink CPUE in 4 mesh 1983

18

I

0) N

II

16

I ishy

14 J 0 t 12shyE 0 10 0 shys 8 () as

0 6 1 I V 4

2

~ I

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

--

Figure 13 Unalakleet River Test Fishing Cumulat ive Pink CPUE in 4 mesh 1983

10

9 01 N 8

J 0 J 7 E J 0 6 E- 50 ~

amp 4() ca

0 3 E J

0 2

1

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

Figure 14 Unalakleet River Test Fishing Daily CPUE in 5 14 amp 5 78 mesh 1983

14

13shy

12

11

10

9 J 0 8

I z shy-E 7 0 0 shys ~u aI 0

4 I

31

2

1

II

0 C1)I 11

I I I II

bull y AA(net changed to 5 78

AA A 11 I

~ I~ V ~

- I

VI

1 5 10 15 20- 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

cJune July August

Figure 15 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 14 amp 5 78 mesh 1983

It

5

--l C)

net changed to 5 78

~ 4 o

c E (J ~

3E o o c 2 u ~ -(J

E ~ (J 1

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 16 Unalakleet River Test Fishing Catch Proportions 1983

60

55

---- King50

__ Coho 45

P--Q Pink

40 __ Chum

I LU 35J D I 0

30 ICQ 0 25 I

N Cl0 20

c G)

15u G)

D

10

5 A 1 I

I 4 I

I I

3 lt

~

2

I I1 - I bull I

I ~ ~ ~ t -J ~~ - _

r

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 17 Unalakleet Area Temperatures 1983

18

16

14

12

til 10I

u-G) 80 CI) G) G) 6 C) G)

Q 4

2

C) C)

__ Air

0--0 River 2

0

-2

-4

---------~ ~

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August 5e

4

Figure 18 Unalakleet River Turbidity and Depth 1983

__ Secchi Reading

-t ()

II) G)-G)

3

iE 2

1

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August

~ 1 _ ~ r--- I shy I __ I 01 --shy

Figure 19 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1981-83

27 31 5

May

_1981

____ 1982

o 0 1983 11) C)

Changed to 5 78 mesh

I

t

~-~o-~ Q-O--Oolt)-(IQ-----l

--1

_10 15 20 25 30 5 10 15 20 25 31

June July

I I I

~

0 ~

r E ~

CJ shyE 0 0 I

shyr u-cu CJ

E ~

CJ

4

35

30

25

20

15

10

05

Figure 20 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 78 mesh 1981-83

5

4 lI 0

z

E lI 0 3 E-0 0 2 r CJ-cu 0

E lI 1 0

__1981 ~~

~ ___1982

a 01983 5 148 mesh from 65-810

_----shy-- 0 - -- C1) A - _ - ~

~ I

I

II I I I I I

I I

1

~ -

-

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 21 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 mesh- 1981-83

8

70

60

50

40 0

r 30E

0 20E-0 0 10 s= u 8 tV 0 6E 0 4

2

__1981 ____ 1982

_1983

shy--- -- shy--- shy J - -

I

I

C1- J

I

-----l---l ~--~r---------------r--

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 22 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1981-83

_1981

~ __ 1982

~1983

25

00I _ __ _ _ C)~ I __ _ I

I V o 20 rt I I

E I AshyI o E 15-o o z u 10 tU o E I o 5

I

1 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

July August 5

----------------------------------------------------------------

Table 1 Unalakleet River Subsistence King Salmon Index 1983

Number of Number of Date Fishermen Chinook Average

08 02 18 05 05 00 02 58 92 62 72 72 42 28 52 60 62 20 47 50 35 25 15

June 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Totals

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 4 4 4

4

3 1 7 2 2 o 1

23 37 25 29 29 17 11 21 24 25

6 14 15 14 H~

6

322

~

39

---------------------- ---------- --------------------------------------

----------------------------------------------------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983

Daily Proportion Cumu1 Prop Date South North Total of Total Cumulative of Total

64 7 23 30 1313131 313 013131 65 44 187 231 00137 261 01308 66 12 162 174 01305 435 01313 67 8 283 291 1313139 726 01322 68 0000 726 13022 69 3 221 224 013137 950 13029 610 26 245 271 131308 1221 13037 611 56 254 310 131310 1531 131347 612 44 736 780 013 24 2311 13071 613 64 1188 1252 01339 3563 01113 614 59 1752 1811 0056 5374 0166 615 97 844 941 01329 6315 0195 616 165 729 894 0028 7209 0223 617 151 i 604 1755 0054 8964 middot 0277 618 i ll 1524 1635 0051 10599 13328 619 175 2000 2175 0067 12774 13395 620 171 21320 2191 0068 14965 0463 621 220 1613 1833 0057 16798 0520 622 199 2065 2264 0070 19062 0590 623 362 21334 2396 0074 21458 13664 624 876 3403 4279 13133 25737 0797 625 1244 2023 3267- 0101 29004 0898 626 738 1601 2339 0073 31343 0971 627 573 3265 3838 0119 35181 1090 628 547 1868 2415 0075 37596 1165 629 528 4028 4556 0141 42152 1306 630 430 430 0013 42582 1319 71 240 240 01307 42822 1326 72 201 975 1176 0036 43998 1362 73 309 8842 9151 0284 53149 1646 74 475 6385 6860 0213 60009 1859 75 565 3342 3907 0121 63916 1980 76 1377 2094 3471 0108 67387 2088 77 1416 3173 4589 0142 71976 2230 78 1472 1420 2892 0090 74868 2320 79 2071 1452 3523 01113 78391 2430 710 3318 2434 5752 0178 84143 2608 711 2673 2866 5539 13172 89682 2780 712 1665 1747 3412 13106 93094 2886 713 21317 1951 3968 13123 97062 3009 714 2991 2664 5655 0175 102717 3184 715 2646 2548 5194 13161 107911 3345 716 2488 2886 5374 0167 113285 3512 717 1585 4063 5648 0175 118933 3687 718 3559 9326 12885 0400 131818 4087 719 2948 2398 5346 13166 137164 4253 720 1640 3330 4970 0154 142134 4407 721 2416 6420 8836 0274 150970 4681 722 3298 3298 0102 154268 4783 723 5007 5007 0155 159275 4938

40

--------------------------------------------------------------------

--------------------------------------------------------------------

-----------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983 (Continued)

Daily Proportion Cum Prop Date South North Total of Total Cumu1at i ve of Total

724 4005 7804 11809 0366 171084 5304 725 2453 3392 5845 0181 176929 5485 726 2166 12094 14260 0442 191189 5927 727 1914 4472 6386 0198 197575 6125 728 1603 3463 5066 0157 202641 6282 729 1251 1914 3165 0098 205806 6380 730 1710 2495 4205 en30 210011 6510 731 2542 1887 4429 0137 214440 6647 81 4479 2271 6750 0209 221190 6856 82 1103 1806 2909 0091 224099 6947 83 1719 942 2661 0083 226760 bull 7030 84 1519 2557 4076 0126 230836 7156 85 1259 1113 2372 0074 233208 7230 86 940 2189 3129 0097 236337 7327 87 1467 4354 5821 0180 242158 7507 88 2318 1584 3902 0121 246060 7628 89 2098 1505 3603 0112 249663 7740 810 2629 1517 4146 bull 0129 253809 7869 811 3753 1091 4844 0150 258653 8019 812 1489 523 2012 0062 260665 8081 813 744 353 1097 0034 261762 8386 814 981 981 bull 0030 262743 8145 815 2324 2324 0072 265067 8217 816 2638 2638 0082 267705 8299 817 2073 731 2804 0087 270509 8115 818 2244 675 2919 0091 273428 8477 819 3240 696 3936 0122 277364 8599 820 2363 503 2866 0089 280230 8688 821 6789 1111 7900 0245 288130 8933 822 6489 563 7052 0219 295182 9152 823 5077 298 5375 0167 300557 9319 824 2616 298 2914 0090 303471 9409 825 3933 412 4345 0135 307816 9544 826 1393 554 1947 0060 309763 9604 827 1203 463 1666 0052 311429 9656 828 1197 542 1739 0054 313168 9710 829 1244 221 1465 0045 314633 9755 830 1011 199 1210 0038 315843 9793 831 718 214 932 0029 316775 9822 91 1324 318 1642 0052 318417 9874 92 1362 307 1669 0052 320086 9926 93 1146 314 1460 0045 321546 9971 94 652 296 948 bull 0029 322494 10000

148465 174029 322494 10000

41

----------------------------------------------------------------------

-------------------------------------------------------------------- --

------

TABLE 3A Unalakleet River Species Apportionment by Test Period King Salmon 1983

3-Day App Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 76 0272 76 0272

69-612N 28 0100 104 0372

612N-615 461 1652 565 2024

616-619N 419 1502 984 3526

619N-622 170 0609 1154 4135

623-626N 722 2588 1876 6723

626N-629 264 0946 2140 7669

630-73N 103 0639 2243 8038

73N-76 188 0674 2431 8712

77-710N 0 0000 2431 8712

710N-713 0 0000 2431 8712

714-717N 267 0957 2698 9969

717N-720 0 0000 2698 9669

721-724N 92 0331 2790 1 0000

724N-727 0 0000 2790 10000

728-731N 0 0000 2790 1 0000

731N-83 0 0000 2790 1 0000

2790 10000

42

Dates

714-717N

717N-720

721-724N

724N-727

728-731N

731N-83

84-87N

87N-810

811-814N

814N-817

818-821N

821N-824

825-828N

828N-831

91-94

TABLE 3B Unalakleet River Species Apportionment by Test Period Coho Salmon

3-Day Count

583

338

436

550

2650

1174

793

1435

5074

1280

435

2265

171H3

1983

Proportion of Season Total

0000

0000

0000

0343

0199

0256

0323

1558

0690

0466

0843

2983

0752

0256

1331

Cumulative Count

583

921

1357

1907

4557

5731

6524

7959

13033

14313

14748

17013

Cumulative Proportion

0000

0000

0000

0343

0542

0798

1121

2679

3369

3835

4678

7661

8413

8669

10000

43

------------------------------------------------------------------

------------------------------------------------------------------

----- ------

TABLE 3C Unalakleet River Species Apportionment by Test Period Pink Salmon 1983

3-Day P roport ion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 0 0000

6l2N-615 0 0000

616-6l9N 97 0012

6l9N-622 332 0036

623-626N 1245 0136

626N-629 6624 0721

630-73N 3699 0403

73N-76 10762 1171

77-7l0N 7704 0838

710N-7l3 8529 0928

714-717N 9771 1063

717N-720 13845 1507

721-724N 11361 1236

724N-727 6544 0712

728-731N 3545 0386

731N-83 1628 0177

84-87N 1224 0133

87N-810 1777 0193

811-814N 802 0087

814N-817 561 0061

818-821N 533 0058

821N-824 8313 13091

825-828N 468 0051

828N-831 0 0000

91-94 0 0000

91881 10000

0 0000

0 0000

0 0000

97 0012

429 0048

1674 0184

8298 0905

11997 1308

22759 2479

30463 3317

38992 4245

48763 5308

62608 6815

73969 8051

80513 8763

84058 9149

85686 9326

86910 9459

88687 9652

89489 9739

90050 9800

90583 9858

91413 9949

91881 10000

91881 10000

91881 1 0000 44

------------------------------------------------------------------

------------ ------------------------------------------------------

----- ------

TABLE 3D Unalakleet River Species Apportionment by Test Period Chum Salmon 1983

3-Day Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 100 0017

612N-615 268 0046

616-619N 838 0144

619N-622 1180 0202

623-626N 2744 0471

626N-629 1569 0270

630-73N 796 0137

73N-76 2972 0510

77-710N 2068 0355

710N-713 2622 0450

714-717N 4133 0710

717N-720 5596 0960

721-724N 4978 0854

724N-727 8974 1540

728-731N 2241 0385

731N-83 2079 ~0357

84-87N 3009 0516

87N-810 2432 0417

811-814N 937 0161

814N-817 454 0078

818-821N 2584 0443

821N-824 2739 0470

825-828N 1783 0306

828N-831 765 0131

91-94 412 0070

58273 10000 45

0 0000

100 0017

368 0063

1206 0207

2386 0409

5130 0880

6699 1150

7495 1287 f

10467 1797

12535 2152

15157 2602

19290 3312

24886 4272

29864 5216

38838 6666

41079 7051

43158 7408

46167 7924

48559 8341

49536 8502

49990 8580

52574 9023

55313 9493

57096 9799

57861 9930

58273 1 0000

-------------------------------------------------------------

------------------------- ------------------------------------

TABLE 4 Unalakleet River Test Net Proportions by Sample Perio-d 1983 ( Selective CPUE)

Dates Chinook Coho Pink Chum Misc

64-68 105 00 00 895

69-612N 24 00 83 893

612N-615 1C~ 5 00 61 834

616-619N 78 18 156 748

619N-622 23 45 160 772

623-626N 65 112 247 576

626N-629 22 553 131 294

630-73N 16 576 124 284

73N-76 10 572 158 260

77-710N 00 555 149 296

710N-713 00 540 166 294

714-717N 14 00 513 217 256

717N-720 00 00 532 215 253

721-724N 04 00 493 216 287

724N-727 00 18 202 277 503

728-731N 00 23 242 153 582

731N-83 00 30 112 143 715

84-87N 44 98 241 617

87N-810 182 122 167 529

811-814N 139 95 111 655

814N-B17 96 68 55 7B1

B18-B21N 105 39 1B9 667

821N-824 263 43 142 552

825-B28N 145 53 202 600

828N-831 97 00 171 732

91-94 396 00 72 532

46

--------

--------

TABLE 4 Una1ak1et River Test Net Proportions 1983 ( Selective CPUE) (Continued)

Comparative Apportionment

Species Apportionment

Chinook 2790 Coho 17013 Pink 91881 Churn 58273

------shySubtotal 169957

Misc Species 152537 ------shy

Total 322494

Substrate Comparison -------------------shy

Bank Counts -----shy

South 148465 North 174029

------shy

Total 322494

Percent of Total Counts

09 53

285 181

5408

472

1000

Percent

460 540

1000

47

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TABLE 5A Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

May 27 28

21 5 482

13 13

1313

1313 21 5 697

13 13

1313

1313 30 240 0 013 937 0 00 31 246 2 41 1183 2 08

June 1 237 0 00 1420 2 07 2 3

256 585

13 13

013 bull 13 13

1676 2 261

2 2

6bull 13 4

5 6 8

160 120 middot 125

13 1

13 42 130

2 421 2541 2666

~ 2 3 3

bull 13 4 136 136

9 122 0 130 2788 3 05 11 117 00 2905 3 05 12 126 13 00 3031 3 05 13 117 1 43 3148 4 06 15 118 0 013 3266 4 136 16 116 1 43 3382 5 138 18 240 13 130 3622 5 07 19 121 0 00 3743 5 07 20 116 0 00 3859 5 136 22 118 1 42 3977 6 138 23 119 1 42 4196 7 08 25 240 0 013 4336 7 138 26 119 13 1313 4455 7 138 27 119 13 1313 4574 7 138 29 1213 13 130 4694 7 137 313 1213 13 00 4814 7 07

July 2 238 0 1313 51352 7 07 3 118 13 013 51713 7 07 4 118 1 42 5288 8 138 6 122 0 00 5410 8 07 7 116 13 00 5526 8 07

10 126 0 1313 5652 8 07 11 119 0 013 5771 8 07 13 116 13 130 5887 8 07 14 119 2 84 6006 10 07 17 122 0 00 6128 10 07 18 112 0 1313 6240 10 136 20 119 13 00 6359 10 06 21 112 0 013 6471 10 06

6471 10

48

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TABLE 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983

Cum Cum Date Hours Catch CPUE Hours Catch CPUE

July 24 26

115 120 0 00

115 235

0 0

00

00 27 117 4 00 352 0 00 29 117 0 137 469 4 34 31 116 3 103 585 7 48

August 2 122 0 00 706 7 40 3 122 2 66 828 9 43 5 118 1 34 946 10 42 7 128 14 437 1074 24 89 9 257 14 218 1331 38 114

10 125 21 672 1456 59 162 12 13 middot- 0 00 1469 x 59 161 14 10 7 12 449 1576 71 180 16 122 2 66 1698 73 172 17 123 6 196 1821 79 174 19 118 1 34 1939 80 165 21 112 6 214 2051 86 168 23 120 3 100 217 1 89 164 24 115 2 70 2286 91 159 26 115 5 174 2401 96 160 28 119 0 00 2520 96 152 30 119 4 1 34 2639 100 152 31 117 1 34 2756 101 147

Sept 2 123 5 33 2879 106 147 4 479 15 125 3358 121 144 6 238 11 185 3596 132 147 7 237 5 84 3833 137 143 8 238 6 1 01 4071 143 141 9 242 10 1 65 4313 153 142

10 242 3 50 4555 156 137 11 242 2 33 4797 158 132 12 241 8 133 5038 166 132 14 227 14 247 5265 180 137 15 242 9 149 5507 189 137 16 210 3 57 5717 192 134 17 239 2 33 5956 194 130 18 230 2 35 6186 196 127 20 489 4 33 6675 200 120 21 24 3 50 6915 203 117 22 242 0 00 7157 203 113 23 234 1 17 7391 204 110

----shy

7391 204

Mesh size = 5 14 from 724 to 810

49

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TABLE 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE ------~-----------------------------------------------------------June 16 122 1 33 122 1 33

17 118 0 bull 0 0 240 1 17 20 120 2 67 360 3 33 21 118 0 00 478 3 25 23 119 2 67 597 5 34 24 119 3 102 716 8 45 27 116 19 655 832 27 130 28 120 22 733 952 49 206 30 120 40 1333 1072 89 332

July 1 115 36 1252 1187 125 421 4 122 30 983 1309 155 474 5 114 47 1649 1423 202 568 7 118 30 1016 1541 232 602 8 120 shy 24 800 1661 -$ 256 616

11 122 42 1377 1783 298 669 12 120 29 967 1903 327 687 14 116 37 1276 2019 364 721 15 118 40 1356 2137 404 756 18 121 60 1976 2258 464 822 19 119 30 740 2377 494 831 21 125 61 1952 2502 555 887 22 118 25 847 2627 580 883 25 122 16 525 2749 596 867 26 116 15 517 2865 611 853 28 122 28 918 2987 639 856 29 117 11 376 3104 650 838

August 1 120 7 233 3224 657 815 2 119 9 303 3345 666 796 4 120 3 100 3465 669 772 5 118 5 170 3583 674 752 8 114 7 245 3697 681 734

11 123 7 337 3 82 0 688 720 15 118 2 68 3938 690 701 16 113 5 177 4051 695 686 18 98 3 122 4149 698 673 19 119 1 34 4268 699 655 22 112 0 00 4380 699 638 23 115 0 00 4495 699 622 25 120 2 66 4615 701 606 26 112 1 36 4727 702 594 29 116 0 00 4843 702 580 30 11 5 0 00 4958 702 566

Sept 1 115 0 00 5079 702 553 2 112 0 00 5191 702 541

----shy5079 702

50

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TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

June 5 73 0 00 73 0 00 7 126 0 00 199 0 00 8 127 0 00 326 0 bull 0 0

10 11 4 3 105 440 3 27 12 113 2 71 553 5 36 14 119 1 34 672 6 36 15 116 4 138 788 10 51 17 116 3 103 904 13 56 19 118 6 203 1022 19 74 21 118 0 00 1140 19 67 22 117 10 342 1257 29 92 24 116 3 103 1373 32 93 26 119 11 370 1492 43 115 28 11 8 6 203 1610 $ 49 122 29 115 13 452 1725 62 144

July 1 119 8 269 1844 70 152 3 119 17 571 1963 87 177 5 119 13 437 2082 100 192 6 12 0 17 567 2202 117 213 8 121 7 231 2323 124 214

10 11 4 18 632 2437 142 233 12 115 12 417 2552 154 241 13 116 37 1276 2668 191 286 15 117 16 547 2785 207 297 17 11 8 31 1051 290 3 238 328 19 118 18 610 3021 256 339 20 115 29 1009 3136 285 364 22 122 17 557 3258 302 371 24 115 24 835 3373 326 387 26 120 19 633 3493 345 395 27 117 11 376 3610 356 394 29 117 14 479 3727 370 397 31 116 18 621 3843 388 404

August 2 121 9 298 3964 397 401 3 122 17 557 4086 414 405 5 11 8 8 271 4204 422 402 7 128 19 594 4332 441 407 9 257 10 156 4589 451 393

10 125 14 448 4714 464 394 12 13 1 308 4727 465 393 14 107 5 187 4834 470 389 16 122 4 131 4956 474 383 17 123 15 488 5079 489 385 19 118 8 271 5197 497 383 21 112 3 107 5309 500 378 23 120 6 200 5429 506 373 24 115 7 243 5544 513 370

51

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TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 (Continued)

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

August 26 115 5 174 5657 518 366 28 119 1 34 577 6 519 359 30 119 4 134 5895 523 355 31 117 0 00 6012 523 3 48

Sept 2 123 3 98 613 5 526 343 4 479 2 17 6614 528 319 6 238 1 17 6852 529 309 7 237 0 00 7089 529 298 8 9

238 242

1 2

17

33 7327 7569

clt

530 532

289 281

10 242 3 50 7811 535 274 11 242 0 00 8053 535 266 12 241 2 33 8294 537 259 14 227 3 53 8521 540 253 15 242 0 00 8763 540 246 16 210 1 19 8973 541 241 17 239 2 33 9212 543 236 18 230 0 00 9442 543 230 20 489 0 00 9931 543 219 21 240 2 33 10171 545 214 22 242 0 0 10413 545 209 23 234 0 00 10647 545 205

----shy

10647 545

52

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------

TABLE 6A Unalakleet River Sonar Site Drift Sets5 1 4n Me sh 19 83 bull

Date Time Result

July 19 1405-1413 1 burbot July 23 1040-1055 1 pink caracass July 27 1520-1530 1 coho August 3 1444-1501 4 coho August 22 1930-1937 0 August 23 937-943 1 coho 1 pink carcass August 26 1117-1127 1 coho 3 churn August 31 1018-1034 3 churn

TABLE 6B Unalakleet River Sonar Site Beach Seines 1983

Date Time Distance Result

July 20 1445 120 meters 4 pink 1 churn 13 Dolly Varden 1 whitefish

July 25 1500 120 meters 6 pink 1 churn 1 Dolly Varden 4 whitefish 1 grayling

July 28 1700 120 meters 4 coho 2 pink 2 churn 1 Dolly Varden

August 1 2010 300 meters 4 pink 3 churn 8 Dolly Varden

August 4 1015 130 meters 5 coho 3 pink 3 churn 65 Dolly Varden 3 whitefish 3 grayling

August 24 1110 130 meters 18 coho 2 Dolly Varden 2 grayling

August 29 1715 120 meters 11 coho 1 pink 69 churn 1 Dolly Varden 2 grayling

Seine done at mile 12 Unalakleet River

53

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TABLE 7 AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER CATCH SAMPLE SPORT CATCH AND SPAWNING SURVEYS 1983

II

COMBINED 3-2 4-2 4-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 31 646 6702 5 104 5010 8 167 5688 1 21 5900

Female 17 354 8540 o o 1 21 5450 o o

Total 48 1000 7353 5 104 5010 9 188 5661 1 21 5900

~ 11)

5-2 6-2 7-2 7-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 11 229 7382 6 125 8350 0 0 0 0

Female 2 42 7925 12 250 8742 1 21 10650 1 21 8350

Total 13 271 7465 18 375 8611 1 21 10650 1 21 8350

TABLE 8A AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER TEST NET SAMPLE 1983

-----~-------------------------------------------------------------------------------------------------------

gt

COMBINED 4-2 5-2 5-3 6-2 7-2 NO LENGIH NO LENGIH NO LENGIH NO LENGTH NO LENGTH NO LENGTr

8 14 n

Male 3 333 8107 0 1 111 5800 o 0 2 222 9260 0 0 Female 6 667 8295 0 0 1 111 7600 o o 4 444 8310 1 111 8930 Total 9 10 e 0 8232 0 o 2 222 6700 o o 6 667 8627 1 111 8930

If) If)

5 14 Male 19 1000 6298 12 632 5392 4 211 6990 0 o 3 158 8997 0 0 Female o 0 o o o o o o 0 0 0 0 Total 19 1000 6298 12 632 5392 4 211 6990 o o 3 158 8997 0 0

4 n or Smaller Male 6 667 5930 1 111 4660 2 222 6325 3 333 6090 0 o 0 o Female 3 333 8970 o o o o o o 3 333 8970 0 o Total 9 1000 6943 1 111 466 2 222 6325 3 33 3 6090 3 33 3 8970 0 0

TOTAL Hale 28 757 6413 13 351 5336 7 189 6630 3 8 1 6090 5 13 5 9102 o 0 Female 9 243 852 o o 1 27 7600 o o 7 189 8593 1 2 7 8930 Total 37 1000 6925 13 351 5336 8 216 6751 3 8 1 6090 12 324 88 e 5 1 2 7 8930

---------------------------------------------------------------------------------------------------------

---------------------------------------------------------------------------------------------------------

TABLE 8B AGE SEX AND SIZE COMPOSITION OF NORTON SOUND COHO SALMON UNALAKLEET RIVER TEST NET SAMPLE 5 14 AND 5 78 GEAR 1983

COMBINED 3-2 4-3 4-4 5-4 NO LENGIH NO LENGIH NO LENGTH NO LENGIH NO LENGTH

Male 9 900 5489 0 0 9 900 5489 0 0 Female 1 10 bull 0 552 QJ QJ 0 1 10QJ 5520 0 0 Total 10 1000 5492 0 0 10 1000 5492 0 0 725-731

bull LI)Male 15 938 5645 15 938 5645 Female 1 62 575 QJ 1 62 575 QJ Total 16 lQJ0QJ 5651 16 100QJ 5651 81-87

Male 24 545 5668 23 523 5768 1 23 3350 Female 20 455 5631 20 455 5631 0 0 Total 441QJ0QJ 5651 43 977 57 QJ 4 1 23 335 QJ 88-814

Male 7 500 5797 7 500 5797 QJ 0 Female 7 500 5596 6 429 5587 1 71 5650 Total 14 1000 5696 13 929 1 71 5650570 815-821

Male 5 455 5492 5 455 5492 Female 6 545 5552 6 545 5552 Total 11 lQJ00 5525 11 100QJ 5525 822-828

Page Figure 14 Unalakleet River Test Fishing Daily CPUE in

5 14 and 5 78 Mesh 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 3~

Figure 15 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 14 and 5 78 Mesh 1983 bullbullbullbullbull 31

Figure 16 Unalakleet River Test Fishing Catch Proportions1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 32

Figure 17 Unalakleet Area Temperatures 1983 bullbullbullbullbullbullbullbullbullbullbullbull 33

Figure 18 Unalakleet River Turbidity and Depth 1983 bullbullbullbull 34

Figure 19 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 Mesh 1981-1983 bullbullbullbullbullbullbullbullbullbullbull 35

Figure 2~ middotUna1ak1eet River Test Fishing Cuciu1ative Chum CPUE in 5 78 Mesh 1981-1983 bullbullbullbullbullbullbullbullbullbullbull 36

Figure 21 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 Mesh 1981-1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 37

Figure 22 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 Mesh 1981-1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 38

-iii shy

LIST OF TABLES

Table 1 Page

Unalakleet River Subsistence King Salmon Index 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 39

Table 2 Unalakleet River Final Sonar Counts 1983 bullbullbullbullbull 40

Table 3A Unalakleet River Species Apportionment by Test Period - King Salmon 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 42

Table 3B Unalakleet River Species Apportionment by Test Period - Coho Salmon 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 43

Table 3C

Table 3D

Unalakleet River Species Apportionment by Test Period - Pink Salmon 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 44

Unalakleet River Species Apportionment by Test Period - Chum Salmon 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 45

Table 4 Unalakleet River Test Net Proportions by Sample Period 1983 (selective CPUE) bullbullbullbullbullbullbullbullbullbull 46

Table SA Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983 bullbullbullbullbull 48

Table 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983 bullbullbull 49

Table 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983 bullbull 5~

Table 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 51

Table 6A Unalakleet River Sonar Site Drift Sets 5 14 Mesh 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbull 53

Table 6B Unalakleet River Sonar Site Beach Seines 1983 bullbullbullbullbullbullbullbullbull ~ 53

Table 7 Age Sex and Size Composition of Norton Sound King Salmon Unalakleet River Catch Sample Sport Catch and Spawning Surveys 1983 bullbullbullbullbullbullbullbull 54

Table 8A Age Sex and Size Composition of Norton Sound King Salmon Unalakleet River Test Net Sample 1983 bullbullbullbullbullbullbullbull 55

-ivshy

Page Table 8B Age Sex and Size Composition of Norton Sound

Coho Salmon Unalakleet River Test Net Sample 5 14n and 57811 Gear 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 56

Table 8C Age Sex and Size Composition of Norton Sound Chum Salmon Unalakleet River Test Net 5 1 4 n and 5 7 8 Gea r 19 8 3 bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull 5 8

Table 9A Age Sex and Size Composition of Norton Sound King Salmon Unalakleet Commercial Catch Sample 1983 bullbullbullbullbullbull 61

Table 9B Age Sex and Size Composition of Norton Sound Sockeye Salmon Unalakleet Test Net Sample 5 78 11 5 14 n 4n and Variable Mesh Nets 1 98 3 bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull e $ bull bull bull bull bull bull bull bull bull bull bull 6 2

Table 9C Age Sex and Size Composition of Norton Sound Coho Salmon Unalakleet Commercial Catch Sample 1983 bullbullbullbullbullbullbullbull 63

Table 9D Age Sex and Size Composition of Norton Sound Chum Salmon Unalakleet Commercial Catch Sample 1983 bullbullbullbullbullbullbullbullbullbullbull 64

Appendix Table lAo Unalakleet River Test Net King Salmon Catches 1981-1983 8 1411 Mesh bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 65

Appendix Table lB Unalakleet River Test Net King Salmon Catches 1982-1983 5 Gear bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 67

Appendix Table lC Unalakleet River Test Net Coho Salmon Catches 1981-1983 5 78 n Mesh bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 68

Appendix Table ID Unalakleet River Test Net Pink Salmon Catches 1981-1983 4 n Me sh bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 70

Appendix Table IE Unalakleet River Test Net Chum Salmon Catches 1981-1983 5 78 Mesh bullbullbullbullbullbullbullbull bull bullbullbullbullbullbullbullbullbullbullbullbullbullbull 72

-vshy

INTRODUCTION

The Unalakleet River empties into Norton Sound approximately 130 miles southeast of Nome is approximately 130 miles in length and drains an area of 1087 square miles The Unalakleet River flows from the Nulato hills westward to the town of Unalakleet on the Bering Sea coast Five major tributaries comprise the river all of which support spawning salmon

The town of Unalakleet is situated at the mouth of the Unalakleet River the most important salmon producing river in Norton ~ound Historically the people of the area have depended on the salmon runs for their liveli~ood first as food for themselves and their dogs and more recently as the basis of their cash economy

Attempts to assess salmon escapement to the system have been made annually by aerial stream surveys counting towers on the North River in 1973 and 1974 and on the Chirosky River during 1975 and 1976 Weather and water clarity have often limited these enumeration efforts but escapement estimates have ranged as high as 1477 king (1977) 28600 churn (1978) 491706 pink (1978) and 1184 coho salmon (1980) not including major tributaries

A salmon subsistence survey is conducted by the Commercial Fisheries Division each year in Unalakleet Results have indicated that sUbsistence catch averages have been increasing in recent years The recent five-year average 1978 to 1982 subsistence salmon catches were 922 king 4694 coho 13019 pink and 3840 chum salmon Coho and pink salmon catches have shown the greatest increases due largely to increased returns of these species

Commercial catches in the Unalakleet subdistrict have also increased due to increased effort better technology and the increased returns of coho and pink salmon The recent five-year average (1978-1982) commercial catch for the Unalakleet subdistrict is 5629 king 28427 coho 131016 pink and 43086 chum salmon In 1982 the average commercial fisherman received approximately $6000 from the sale of salmon

Because of the importance of the commercial and subsistence

-1shy

fisheries and the problems of estimating escapement in this subdistrict side-scanning sonar was installed in 1982 in the Unalakleet River in hopes of gaining a more accurate estimate of escapement and at the very least a more consistent index of salmon migration

A test fishing program was in operation in 1981 in the lower four miles of the Unalakleet River Indices from this study were instrumental in helping the area biologist set some commercial fishing periods In 1982 sonar counts proved useful as an index of the coho salmon escapement and were used by the area biologist in extending the coho fishery

A number of problems affecting sonar counts became more apparent during the 1983 season These problems brought on by low river velocity (13 to 17 fps) and tidal f1uctuationi included milling salmon and allocating counts to five different fish classifications

With increased harvest effort on the chinook population a limited sport fish survey was begun

This report presents the results of the Unalakleet sonar projects second year of operation and comparison of test fishing indices from 1981 to 1983

METHODS

Project Deployment

Supplies and equipment were on-site and camp construction was completed on May 28 Both north and south bank counters were in operation on June 4 Sonar counter operation ceased on September 4 91 days after counting was initiated By September 6 the sonar camp had been dismantled and the equipment stored for the winter

Test fishing began on May 27 and ended on September 23

Sonar

The Electrodynamics Division of the Bendix Corporation developed a side- scanning hydroacoustic counter during the 1970s capable of detecting and counting salmon migrating along the banks of tributary streams The side-scan sonar counter is designed to transmit a sonic beam along a 60 foot aluminum tube or substrate

-2shy

Echoes from fish passing through the beam are reflected to the transducer The systems electronics interpret the strength and number of the echoes and tally fish counts

Two Bendix side-scan counters 1981 models were used on the Unalakleet River The respective 60-foot tubular aluminum substrates were deployed from opposite banks of the Unalakleet River Both substrates were positioned so there was at least two feet of water over the sonar beam that is projected immediately above the substrate that is two feet over the transducer housing and seven feet over the target end of the substrate It was found that three feet of water was needed as a buffer to eliminate debris counts due to wind ripples flotsam and sudden water level changes A small weir _ was placed to prevent fish passage inshore from the transducer on both sides of the riverThe substrates were not located directly opposite each other The north bank substrate was located 400 feet upstream from the south bank substrate which was placed in a nearly ideal river bottom profile Unfortunately mud shallows were opposite the south bank During the season fish behavior necessitated movement of the north bank substrate to a site 300 feet downstream of the south bank substrate

The river width at this site is approximately 200 feet The deepest channel is located about 80 feet from shore at the north bank substrate and about 100 feet from shore at the south bank substrate Although one-third of the river is isonified by the sonar beams if fish follow a depth contour then more than two-thirds of the possible fish paths would be covered by the sonar counters

The substrates were moved several times during the summer because of water level changes or for cleaning The substrates were guyed to two dead men each in the form of buried logs held in place with fence posts Stainless steel aircraft cable fastened to each end of the substrate was attached to respective dead men on shore

The cables were roughly parallel and adjusted to hold the substrate perpendicular to shore The inshore cable was long enough to allow the substrate to remain perpendicular to shore even though it might be moved 15 feet from shore The easiest method of movement of the substrate was to use the hydrodynamic shape of the substrate to raise itself and push against the substrate with a handy man jack The inshore footing could then be relocated with a minimum of

-3shy

effort

Although the current at the sonar site was insufficient to raise the tube to the surface it did help in pulling it up to a point where it could be cleaned

Calibration (a comparison of oscilloscope fish counts and sonar fish counts) was scheduled four times daily on both banks The magnitude of the fish milling problem compounded by slow fish passage made this schedule impractical much of the summer Calibration was attempted when usable results seemed impossible it was not attempted at extreme rates of fish passage Calibration was done by comparing echoes on a Tektronix 221 oscilloscope with counts of the sonar counter Salmon passing through the sonar beam produce a distinctive oscilloscope trace A count of 100 fish within 30 minutes the maximum calibration period was required before resetting the sonar fish velocity controls

agreement = Sonar computer count Oscilloscope count

The agreement was then used to adjust the daily counts Agreement of less than 1 indicates the sonar was undercounting and greater than 1 indicates overcounting

When the count agreement varied more than 15 then the following equation was used to derive a new fish velocity

agreement x existing velocity = new velocity

Milling fish became a problem on June 28 on the north bank when slow migrating and milling pink salmon oscars started riding the substrate turbulence wave Based on counting tower observations it was determined that all sixteen sectors were affected On July 1 and 2 the substrate was moved approximately 700 feet downstream to the base of a small cliff with somewhat faster water velocity Pink salmon began riding the substrate at the new site within hours Oscars were not a problem on the south bank during this time therefore in order to estimate the passage on the north bank the average hourly passage rate (percent per hour of the daily total) of the preceding three day period of the south bank was used to calculate daily totals for the

-4shy

north bank based upon hours which were not apparently effected by oscars

Total of Preceding 3-day valid hourly sum of daily

Daily total--North = counts--north x counts--South Total of corresponding hourly counts for preceding 3 days--south

After two weeks of attempting to deal with milling fish the following policy was decided on The sonar beam was raised slightly so that a strong target was seen in the four degree mode but a decrease in target strength was barely apparent in the two degree mode The offshore end of the substrate was moved middotfive feet downstream from the perpendicular placement used earlier The beam was extended as far as possible beyond the target These measures seemed to eliminate fish avoidance of the substrate as a problem

Other milling problems were not satisfactorily resolved Salmon moving downstream were not counted by the sonar but those same fish moving upstream could be counted by the sonar It was decided to invalidate an hourly count if milling fish were observed from a tower or oscilloscope or if sonar criteria were not met Disqualifying sonar criteria were hourly debris checks or a large fish count over 15 The large fish count indicated fish moving over the substrate in a tight school which was characteristic of milling behavior King salmon in the Unalakleet did not seem to reflect a long enough signal to register as large fish however two or three small salmon could register if they were close to the same distance from the transducer and spaced in an overlapping manner

Records of changes in counter settings river conditions and other unusual occurrences were also used in adjusting daily sonar counts

The large fish counter on the 1981 model sonar counter was ignored except as an index of milling fish

Test Fishing

The same test fishing site as in 1981 and 1982 was used during the 1983 season

-5shy

The ten fathom 8 14 gillnet was set from May 27 to May 31 A twenty fathom 8 14 gillnet was set on June 1 and fished until June 4 From June 5 to September 4 the period of sonar operation a rotating schedule of twelve hour time blocks over a period of three days was used The nets used included

1 20 fm 8 14 mesh 2 25 fm 5 14 mesh (June 5-August l025 fm 5 78

mesh (August II-September 4) 3 25 fm 4 mesh 4 15 fm variable mesh

The 25 fm 5 78 mesh gillnet was fished from September 5 to September 25 The 8 14 mesh net and the v~riable mesh net were fished concurrently The three-day rotation schedule allowed each net to be fished during one 12-hour high tidedaylight period and one 12-hour low tidenight period Nets were rotated at 0900 and 2HJ0 daily The 8 14 mesh net was removed from the rotation on July 21 because the chinook migration was completed

The CPUE (catch100 fm-hr) was calculated for the two most efficient nets for each species to be used in apportioning sonar counts These CPUEs for chinook coho pink chum and other species presumably detectable by sonar were totaled and the species CPUE divided by the total CPUE for all species to give the percent of the periods sonar counts to each specie The seventh day of the week was apportioned by using the previous 3-day proportions for one half of the counts and the following 3-day proportions for the second half of the counts

Test net data (Tables 5A 5B 5C and 5D) was calculated for the single most effective net for each species for separate analys is

Weights lengths and scale samples were taken from all chinook coho and chum captured Pink salmon were counted only Tissue samples were taken from test net chinook salmon for electrophoretic studies coordinated by the Stock Separation Section of the Commercial Fisheries Division

Counting Towers

Counting towers were erected immediately adjacent to the

-6shy

onshore end of each substrate (Figure 2) As in 1982 the use of visual tower counts for comparison with sonar counts could not be relied upon due to river width surface disturbances etc however several short comparisons were possible The towers proved invaluable in determining the presence of moribund fish debris passage presence of oscars fish swimming behavior etc The 1983 low river level and generally less turbidity as compared to 1982 allowed more rapid and concrete identification of the milling fish Without use of the tower the severity of the milling fish problem may not have been discovered

Drift SetsBeach Seines

Drift sets and beach seines were done for comparison with test net species apportionment and to determine fish passage beyond the sonar counting range Drjft sets were accomplished by drifting a 25 fm 5 14 gillnet perpendicular to the shore The 25 fm net allowed the major portion of the river to be fished thus only one drift was done per set as opposed to 1982 when a drift set was done near each bank Set durations ranged from 5 to 17 minutes dependent upon boat traffic wind conditions etc Drift sets were done on July 19 23 and 27 and August 3 22 23 26 and 31

Beach seines were accomplished by using a 25 fm 3 mesh seine immediately downstream of the south bank substrate Shoreline conditions prevented se1n1ng near either north bank site Beach seines on the south bank were done on July 20 25 and 28 and August 1 and 29 Beach Unalakleet River were done on August 4 and levels prevented seining from August 4 to

seines 24

24

at High

mile 12 water

Riyer Surveys

Two river surveys were attempted during 1983 A jet boat was taken up the North River on July 29 This proved to be early for carcass sampling but weather and equipment problems prevented a later survey

A float trip of the Old Woman and upper Main River was also made A plane landing mishap greatly reduced the scope of this trip Weather prevented any follow up work

Subsistence Surveys

A daily survey of three to five sUbsistence fishermen is

-7shy

made from the time the first king salman is caught early in June through the remainder of that month These people must be trustworthy conscientious about checking their nets and fairly successful The average daily catch is compared to the previous day to develope the annual trend and the total catches and the annual trend is compared to past years Commercial catch and effort data and the up-river test net data are used in conjuction with the subsistence catch to anticipate strategies

future catches and management

During late September made of Unalakleet

an The

extensive door to door survey is Annual Management Report covers

subsistence surveys in detail

RESULTS

~istence Survey

The Unalakleet subsistence survey made in late September interviewed 74 subsistence fishermen 68 of whom fished in the river and 17 who fished in the ocean The catch was predominantly from the river with 1480 king 6311 coho 13458 pink and 4124 chum salmon reported The ocean subsistence catch was 388 king 577 coho 350 pink and 277 chum salmon

The mean chinook salmon catch per fisherman peaked on June 16 This compares with July 3 in 1982 and June 19-22 in 1981 All subsistence fishermen surveyed in 1983 were fishing within one mile of the river mouth

Chinook subsistence survey results are presented in Table 1 and Figure 3 As in 1981 and 1982 the variances in nets fishing times and net locations call for calculation of mean catch per fisherman as opposed to catch per unit effort

Sonar

During the period from June 4 to September 4 the final sonar count was 322494 148465 (460) counts were tallied on the south bank and 174029 (540) counts were tallied on the north bank

The daily sonar counts (Table 2) were adjusted by the test net proportions (Table 4) to give the following escapement estimates for the period June to September 4

-8shy

Species Total Count LQf Total

Chinook 2790 09 Coho 17013 53 Pink 91881 285 Chum 58273 181 Other 152537 AL2

322494 1000

Tables 3A 3B 3C 3D and 4D present this data by 3-day sample period Based on discussions with Al Menin and Dave Gaudet about the ability of sonar counters to discriminate between various target shapes and sizes any fish two and one half pounds or laterally compressed fish ~f one pound or larger could be counted by a sonar calibrated for pink salmon Fish other than salmon considered countable by the sonar counter included arctic char grayling burbot and broad humpback and Alaska whitefish

Peak adjusted apportioned sonar counts were on June 23 for chinook August 21 for coho July 18 for pink and July 25 for chum salmon (Tables 3A 3B 3C and 3D Figures 4A 4B 4C and 4D)

Representative passage rates on the south bank by sector and by hour for July 3-5 and August 21-23 are presented in Figures 6 and 7 These periods were chosen because of minimal adjustments to raw counts north bank counts are not presented due to lack of relatively clean data for those periods

Test Fishing

A total of 19 chinook (74 male - 26 female) 294 coho (61 male 39 female) 1156 pink (52 male - 48 female) and 915 chum (54 male - 46 female) was captured from May 27 to September 23 The fish were sampled and delivered to Hartha Nanouk a local subsistence fisherman as per agreement for the use of her traditional set-net site

Based on the single most effective test net CPUE the chinook migration did not peak as such but rather showed most consistent catches on June 22 and 23 coho migration peaked from August 10-14 pinks from July 18-22 and chum on July 13

-9shy

Comparisons of daily CPUE and cumulative CPUE for all salmon species are presented in Tables SA 58 5C and 5D and Figures 8 thru 15 Of interest although not as useful for annual comparison due to different test net methods net mesh sizes fishing time etc the actual fish caught from 1981 to 1983 are

~ 1982 un 41 chinook 39 chinook 39 chinook

107 coho 310 coho 294 coho 1463 pink 5114 pink 1156 pink

722 chum 375 chum 915 chum

f

Age Sex and Size Composition of Test Net Catches

An age analysis of scales collected during the project indicated the following age compositions king salmon all gear sizes (4-2131 5-2 22~ 5-3816-23217-2 3) coho salmon 5 14 and 5 78 gear (3-2 051 4-3 981 4-4 051 5-4 l) chum salmon 5 14 and 5 78 gear (3-1 21 4-1 611 5-1 37) Tables 7 thru 9D show the age composition of the various species broken down by date and the mesh sizes used during the project

Counting Towers

As cited visual tower counts could not be made on the Unalakleet River due to river width surface disturbances turbidity etc However visual observations proved invaluable in identifying spawning behavior etc and resulted in the downstream relocation of the north bank substrate and development of the method used to adjust north bank sonar counts

Drift SetsBeach Seines

Tables 6A and 68 present the results of drift sets and beach seines respectively Drift set results indicate that the portion of the river not isonified was not used by migrating salmon ie the species most countable coho pink and chum salmon would seem to follow the banks and were counted by the side-scan sonar

Beach seines proved useful in verifying the high presence of

-10shy

species other than salmon the relative abundance of coho salmon in August and the presence of spawning churn salmon in the south bank substrate area

Riyer SurveysAerial SurVeys

On July 29th 32 miles of the North River were surveyed by a two-person crew for the purpose of counting live chinook and sampling chinook carcasses A total of 166 live chinook were counted and 3 chinook carcasses were sampled with approximately half of the chinook counted between mile 25 and mile 32

Originally the Old Woman River survey was to be a six-day trip Due to the damage the plane suffered dropping the first crew member off the second member and support gear was not av~ilable for the survey as planned~ The survey of the Old Woman River August 6-8 counted 60 king salmon but only four samples were collected Weather prevented the survey of the main river

King Salmon Spo rt Fish Survey

A sport fishing lodge on the Unalakleet River is responsible for the majority of the sport fishing effort Periodic surveying of lodge personnel indicates that a fair quantity of king salmon are harvested by sport fishing A quantitative survey was not done however due to limited time available A total of 43 chinook was sampled from sport fishing catches

DISCUSSION

River levels were lower than normal during the spring of 1983 due to the lack of snow accumulation the previous winter The Unalakleet River cleared early and became quite low during late June and early July The low water allowed the counting towers at the sonar site to be used during calm survey days which wasnt possible during 1982

Tower observations made as early as June 28 showed serious milling problems at the north bank sonar site The sonar was moved to a new site on July 2 Milling fish were still a considerable problem at the new site but about half the hourly count were considered acceptable during mid-July Milling salmon were a problem through most of the field season Milling salmon of all four species were observed

-11shy

during the latter half of each respective migration Pink salmon presented the worst problem and churn the least Unfortunately milling pinks invalidated the churn count since the two runs overlap Coho salmon exhibited some milling but an accurate evaluation of this problem was hampered by turbid water Milling coho became a problem after August 20

The milling observed from the towers was not apparent to the observer at the oscilloscope because of the overwhelming number of spikes present at that stage of the salmon migration During 1982 when tower observations were not possible the oscilloscope appeared to have an extraordinary number of spikes The large pink salmon count recorded in 1982 may have been an artifact of milling behavior that was unobservable then Commercial catch and test net catch statistics indicate a large pink salmon run f However it is likely fish milling over the substrate exaggerated the sonar count although without tower observations it can not be proven

Another problem observed during the 1983 field season was avoidance of the substrate by all fish species This problem was at its worst when water was low and clear Angling the substrate slightly downstream as it was after July 15 helped considerably By extending the sonar beam periodically it was determined that as visibility decreased so did avoidance

Species apportionment of the sonar count was done using test net catches Some of the problems encountered with the sampling scheme should be pointed out Test nets were assumed to sample the same portion of the river as the sonar Since three net lengths were used this seemed suspect Different species migrate at different depths The non-salmon species tend to migrate in shallow water near shore and generally the larger species migrate in deeper water nearer mid-stream Since only a IS-fathom net of the most efficient type for non-salmon species was fished in the preferred habitat for these fish it is likely that the calculated efficiency was too high The other test nets were longer and also sampled some preferred areas for the targeted species

The opposite case is true for king salmon The 8 14 net is 20 fathoms longS fathoms shorter than the other nets used on this project This net does not cover all of the area preferred by king salmon This means king salmon

-12shy

escapement is probably underestimated but the 20 fathom net samples an area further out than the sonar counter even with its beam extended So the number of king salmon counted by the sonar is over estimated King salmon make up such a small percentage of the total salmon run that counting errors are more significant than this apportionment error

Very few churn and pink salmon were caught in the offshore end of the nets It is assumed these long nets had very little effect on the sonar count species apportionment

CONCLUSION

The feasibility of counting salmon in the Unalakleet River using side-scanning sonar is unlikely due to milling fish and the inal1ility to accurately apportion the sonar count to the various fish species It is possible that a partial escapement count could be made further up river above one or more of the major tributaries to the system The new north bank sonar site that showed some improvement over the former site had two differences that seemed to affect salmon migration The current was faster over the substrate at the second site and the river gravels were less ideal spawning habitat The new site was located below a rock bluff on the outside of a river bend

There are two similar sites up river about ten miles where the current is faster and the bottom is even less conducive to spawning During the 1984 field season a comparison of the smoother running south bank site and these up-river sites could be made The best time to do this would be during August when only coho salmon are migrating The counter should be operating by August 15 prior to milling activity and maintained for a week to evaluate if milling salmon became apparent later after the migration peaked The south bank site could be used as a control for comparison to 1983

-13shy

I I

5 1 2

Miles No tt h _

shy

R Iv er

Figure 1 Unalakleet Escapement Project

lt

Son sr

Fig u r e 2 S 0 0 a r Sit eSc hem a tic

ITower

Original Ninth Bank Sonar

Drift sets 5 minutes

Lf)

So t h Ban k Son a

lTower

o Work Tent

B Living Quarters

Figure 3Unalakleet Subsistence Survey 1983

Kin g- S a I m 0 n

1bull

10

9

c 8aI

-lE 11 t a til 7 ~ II 6 ~ U

5 til

0

c 4 til til

E 3 I

1 V

~ 2

1

27 1 5 10 15 20 25 30

~ June

Figure 4A Specie apportionment king salmon Un-alakleet sonar 1983

~

25

-l20

c 1 5 III () III

11

10

5

I

J

27 31 5 10 15 20 25 30 5 10 15 20 25 31

June Ju Iy

Figure 4B Specie middotapp~~tionment coho salmon Unalakleet sonar 1983

30

25

co ~

20

1 t~

C $

u 1 5 CD a

10

5

5 10 15 20 25 31 5 10 15 20 25 31 5

Ju August Sept e

Figure 4C Specie apportionment pink salmon Unalakleet sonar 1983

1 6

1 5

14

1 3

12

1 1

c II U CII

Ashy

10

9

a

7

01 ~

6

5

4

3

2

1

1 5 10 1 5

June

2 O 25 30 5 10 15 20

Ju Iy

25 31 5 10 15 20

August

25 31 5 10

Septem

Figure 40 Species apportionment chum salmon Unalakleet sonar 1983

16

1 5

1 4

13

1 2

1 1

10

9 c 8GI U

GI middot7 A

6

5

4

3

2

1

~

o N

~

1 5 10 15 20 25 30 5 10 15 20 25 3 1 5 10 15 20 25 31 5 10

June Ju Iy August Sept e

Figure 5 Specie apportionment Unalakleet sonar 1983

50

4

40

35

c J 30 0 U

~ 0 25 0 c Q)

u ~

Q) 20a

15

10

5

o L-_lt---__

King Coho Pink Chum Misc

21

----

Figure 6 Sector distribution of counts Unalakleet sonar1983

35

30

25

c 20 G)

() G) 15

0

10

5

35

30

25 c G)

() 20

G)

0 15

10

5

( s ()u t h ban k )

July 3-5

~-2 4 6 8 1 0 1 2 1 4 1 6shy

Sector

August 21-23

2 4 6 8 10 12 14 16

Sector

22

Figure 7 Hourly distribution of counts Unalakleet sonar 1983

(south bank)

14

12

10

c 8 GI U ~

6

July 3-5

~GI

I =~ Q

4

2 0

2 4 6 8 10 12 14 1 6 18 20 22 24

TIme

9

8

7

6

5 c GI U ~ 4 GI

Q

3

2

August 21-23

1

0

2 4 6 8 10 12 14

TIme

16

23

18 20 22 24

Figure 8 Unalakleet River Test Fishing Daily King CPUE in 8 14 mesh 1983

10

9 N

8 shy

7 I 0 c 6E

n

l J I I

0 0 5 c (J 4 co 0

3

2

1

I I

27 1 5 10 15 20 25 1 5 10 15 20 25 31

~ June July

Figure 9 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1983bull

~

middot10

09 U N

I 08 0 c 07E I ()

- 06 E-0 0 05 shy~ () 04 ca - ()

03E I 0 02

01

27 1 5 10 15 2Q 25 1 5 10 15 20 25 31

June July

Figure 10 Unalakleet River Test Fishing Daily Coho CPUE in 5 78 mesh 1983

1

6

5

I 0

NI II I 0 t

E 4

0 0 c 3() cu 0

2

1

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sept U

Figure 11 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1983

200

175

150

I 0 c 125E I ()

E

r-shy-0 I I N 0 100 c ()-as ()

75E I 0

50

25

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sel ber

20

Figure 12 Unalakleet River Test Fishing Daily Pink CPUE in 4 mesh 1983

18

I

0) N

II

16

I ishy

14 J 0 t 12shyE 0 10 0 shys 8 () as

0 6 1 I V 4

2

~ I

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

--

Figure 13 Unalakleet River Test Fishing Cumulat ive Pink CPUE in 4 mesh 1983

10

9 01 N 8

J 0 J 7 E J 0 6 E- 50 ~

amp 4() ca

0 3 E J

0 2

1

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

Figure 14 Unalakleet River Test Fishing Daily CPUE in 5 14 amp 5 78 mesh 1983

14

13shy

12

11

10

9 J 0 8

I z shy-E 7 0 0 shys ~u aI 0

4 I

31

2

1

II

0 C1)I 11

I I I II

bull y AA(net changed to 5 78

AA A 11 I

~ I~ V ~

- I

VI

1 5 10 15 20- 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

cJune July August

Figure 15 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 14 amp 5 78 mesh 1983

It

5

--l C)

net changed to 5 78

~ 4 o

c E (J ~

3E o o c 2 u ~ -(J

E ~ (J 1

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 16 Unalakleet River Test Fishing Catch Proportions 1983

60

55

---- King50

__ Coho 45

P--Q Pink

40 __ Chum

I LU 35J D I 0

30 ICQ 0 25 I

N Cl0 20

c G)

15u G)

D

10

5 A 1 I

I 4 I

I I

3 lt

~

2

I I1 - I bull I

I ~ ~ ~ t -J ~~ - _

r

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 17 Unalakleet Area Temperatures 1983

18

16

14

12

til 10I

u-G) 80 CI) G) G) 6 C) G)

Q 4

2

C) C)

__ Air

0--0 River 2

0

-2

-4

---------~ ~

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August 5e

4

Figure 18 Unalakleet River Turbidity and Depth 1983

__ Secchi Reading

-t ()

II) G)-G)

3

iE 2

1

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August

~ 1 _ ~ r--- I shy I __ I 01 --shy

Figure 19 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1981-83

27 31 5

May

_1981

____ 1982

o 0 1983 11) C)

Changed to 5 78 mesh

I

t

~-~o-~ Q-O--Oolt)-(IQ-----l

--1

_10 15 20 25 30 5 10 15 20 25 31

June July

I I I

~

0 ~

r E ~

CJ shyE 0 0 I

shyr u-cu CJ

E ~

CJ

4

35

30

25

20

15

10

05

Figure 20 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 78 mesh 1981-83

5

4 lI 0

z

E lI 0 3 E-0 0 2 r CJ-cu 0

E lI 1 0

__1981 ~~

~ ___1982

a 01983 5 148 mesh from 65-810

_----shy-- 0 - -- C1) A - _ - ~

~ I

I

II I I I I I

I I

1

~ -

-

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 21 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 mesh- 1981-83

8

70

60

50

40 0

r 30E

0 20E-0 0 10 s= u 8 tV 0 6E 0 4

2

__1981 ____ 1982

_1983

shy--- -- shy--- shy J - -

I

I

C1- J

I

-----l---l ~--~r---------------r--

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 22 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1981-83

_1981

~ __ 1982

~1983

25

00I _ __ _ _ C)~ I __ _ I

I V o 20 rt I I

E I AshyI o E 15-o o z u 10 tU o E I o 5

I

1 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

July August 5

----------------------------------------------------------------

Table 1 Unalakleet River Subsistence King Salmon Index 1983

Number of Number of Date Fishermen Chinook Average

08 02 18 05 05 00 02 58 92 62 72 72 42 28 52 60 62 20 47 50 35 25 15

June 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Totals

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 4 4 4

4

3 1 7 2 2 o 1

23 37 25 29 29 17 11 21 24 25

6 14 15 14 H~

6

322

~

39

---------------------- ---------- --------------------------------------

----------------------------------------------------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983

Daily Proportion Cumu1 Prop Date South North Total of Total Cumulative of Total

64 7 23 30 1313131 313 013131 65 44 187 231 00137 261 01308 66 12 162 174 01305 435 01313 67 8 283 291 1313139 726 01322 68 0000 726 13022 69 3 221 224 013137 950 13029 610 26 245 271 131308 1221 13037 611 56 254 310 131310 1531 131347 612 44 736 780 013 24 2311 13071 613 64 1188 1252 01339 3563 01113 614 59 1752 1811 0056 5374 0166 615 97 844 941 01329 6315 0195 616 165 729 894 0028 7209 0223 617 151 i 604 1755 0054 8964 middot 0277 618 i ll 1524 1635 0051 10599 13328 619 175 2000 2175 0067 12774 13395 620 171 21320 2191 0068 14965 0463 621 220 1613 1833 0057 16798 0520 622 199 2065 2264 0070 19062 0590 623 362 21334 2396 0074 21458 13664 624 876 3403 4279 13133 25737 0797 625 1244 2023 3267- 0101 29004 0898 626 738 1601 2339 0073 31343 0971 627 573 3265 3838 0119 35181 1090 628 547 1868 2415 0075 37596 1165 629 528 4028 4556 0141 42152 1306 630 430 430 0013 42582 1319 71 240 240 01307 42822 1326 72 201 975 1176 0036 43998 1362 73 309 8842 9151 0284 53149 1646 74 475 6385 6860 0213 60009 1859 75 565 3342 3907 0121 63916 1980 76 1377 2094 3471 0108 67387 2088 77 1416 3173 4589 0142 71976 2230 78 1472 1420 2892 0090 74868 2320 79 2071 1452 3523 01113 78391 2430 710 3318 2434 5752 0178 84143 2608 711 2673 2866 5539 13172 89682 2780 712 1665 1747 3412 13106 93094 2886 713 21317 1951 3968 13123 97062 3009 714 2991 2664 5655 0175 102717 3184 715 2646 2548 5194 13161 107911 3345 716 2488 2886 5374 0167 113285 3512 717 1585 4063 5648 0175 118933 3687 718 3559 9326 12885 0400 131818 4087 719 2948 2398 5346 13166 137164 4253 720 1640 3330 4970 0154 142134 4407 721 2416 6420 8836 0274 150970 4681 722 3298 3298 0102 154268 4783 723 5007 5007 0155 159275 4938

40

--------------------------------------------------------------------

--------------------------------------------------------------------

-----------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983 (Continued)

Daily Proportion Cum Prop Date South North Total of Total Cumu1at i ve of Total

724 4005 7804 11809 0366 171084 5304 725 2453 3392 5845 0181 176929 5485 726 2166 12094 14260 0442 191189 5927 727 1914 4472 6386 0198 197575 6125 728 1603 3463 5066 0157 202641 6282 729 1251 1914 3165 0098 205806 6380 730 1710 2495 4205 en30 210011 6510 731 2542 1887 4429 0137 214440 6647 81 4479 2271 6750 0209 221190 6856 82 1103 1806 2909 0091 224099 6947 83 1719 942 2661 0083 226760 bull 7030 84 1519 2557 4076 0126 230836 7156 85 1259 1113 2372 0074 233208 7230 86 940 2189 3129 0097 236337 7327 87 1467 4354 5821 0180 242158 7507 88 2318 1584 3902 0121 246060 7628 89 2098 1505 3603 0112 249663 7740 810 2629 1517 4146 bull 0129 253809 7869 811 3753 1091 4844 0150 258653 8019 812 1489 523 2012 0062 260665 8081 813 744 353 1097 0034 261762 8386 814 981 981 bull 0030 262743 8145 815 2324 2324 0072 265067 8217 816 2638 2638 0082 267705 8299 817 2073 731 2804 0087 270509 8115 818 2244 675 2919 0091 273428 8477 819 3240 696 3936 0122 277364 8599 820 2363 503 2866 0089 280230 8688 821 6789 1111 7900 0245 288130 8933 822 6489 563 7052 0219 295182 9152 823 5077 298 5375 0167 300557 9319 824 2616 298 2914 0090 303471 9409 825 3933 412 4345 0135 307816 9544 826 1393 554 1947 0060 309763 9604 827 1203 463 1666 0052 311429 9656 828 1197 542 1739 0054 313168 9710 829 1244 221 1465 0045 314633 9755 830 1011 199 1210 0038 315843 9793 831 718 214 932 0029 316775 9822 91 1324 318 1642 0052 318417 9874 92 1362 307 1669 0052 320086 9926 93 1146 314 1460 0045 321546 9971 94 652 296 948 bull 0029 322494 10000

148465 174029 322494 10000

41

----------------------------------------------------------------------

-------------------------------------------------------------------- --

------

TABLE 3A Unalakleet River Species Apportionment by Test Period King Salmon 1983

3-Day App Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 76 0272 76 0272

69-612N 28 0100 104 0372

612N-615 461 1652 565 2024

616-619N 419 1502 984 3526

619N-622 170 0609 1154 4135

623-626N 722 2588 1876 6723

626N-629 264 0946 2140 7669

630-73N 103 0639 2243 8038

73N-76 188 0674 2431 8712

77-710N 0 0000 2431 8712

710N-713 0 0000 2431 8712

714-717N 267 0957 2698 9969

717N-720 0 0000 2698 9669

721-724N 92 0331 2790 1 0000

724N-727 0 0000 2790 10000

728-731N 0 0000 2790 1 0000

731N-83 0 0000 2790 1 0000

2790 10000

42

Dates

714-717N

717N-720

721-724N

724N-727

728-731N

731N-83

84-87N

87N-810

811-814N

814N-817

818-821N

821N-824

825-828N

828N-831

91-94

TABLE 3B Unalakleet River Species Apportionment by Test Period Coho Salmon

3-Day Count

583

338

436

550

2650

1174

793

1435

5074

1280

435

2265

171H3

1983

Proportion of Season Total

0000

0000

0000

0343

0199

0256

0323

1558

0690

0466

0843

2983

0752

0256

1331

Cumulative Count

583

921

1357

1907

4557

5731

6524

7959

13033

14313

14748

17013

Cumulative Proportion

0000

0000

0000

0343

0542

0798

1121

2679

3369

3835

4678

7661

8413

8669

10000

43

------------------------------------------------------------------

------------------------------------------------------------------

----- ------

TABLE 3C Unalakleet River Species Apportionment by Test Period Pink Salmon 1983

3-Day P roport ion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 0 0000

6l2N-615 0 0000

616-6l9N 97 0012

6l9N-622 332 0036

623-626N 1245 0136

626N-629 6624 0721

630-73N 3699 0403

73N-76 10762 1171

77-7l0N 7704 0838

710N-7l3 8529 0928

714-717N 9771 1063

717N-720 13845 1507

721-724N 11361 1236

724N-727 6544 0712

728-731N 3545 0386

731N-83 1628 0177

84-87N 1224 0133

87N-810 1777 0193

811-814N 802 0087

814N-817 561 0061

818-821N 533 0058

821N-824 8313 13091

825-828N 468 0051

828N-831 0 0000

91-94 0 0000

91881 10000

0 0000

0 0000

0 0000

97 0012

429 0048

1674 0184

8298 0905

11997 1308

22759 2479

30463 3317

38992 4245

48763 5308

62608 6815

73969 8051

80513 8763

84058 9149

85686 9326

86910 9459

88687 9652

89489 9739

90050 9800

90583 9858

91413 9949

91881 10000

91881 10000

91881 1 0000 44

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------------ ------------------------------------------------------

----- ------

TABLE 3D Unalakleet River Species Apportionment by Test Period Chum Salmon 1983

3-Day Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 100 0017

612N-615 268 0046

616-619N 838 0144

619N-622 1180 0202

623-626N 2744 0471

626N-629 1569 0270

630-73N 796 0137

73N-76 2972 0510

77-710N 2068 0355

710N-713 2622 0450

714-717N 4133 0710

717N-720 5596 0960

721-724N 4978 0854

724N-727 8974 1540

728-731N 2241 0385

731N-83 2079 ~0357

84-87N 3009 0516

87N-810 2432 0417

811-814N 937 0161

814N-817 454 0078

818-821N 2584 0443

821N-824 2739 0470

825-828N 1783 0306

828N-831 765 0131

91-94 412 0070

58273 10000 45

0 0000

100 0017

368 0063

1206 0207

2386 0409

5130 0880

6699 1150

7495 1287 f

10467 1797

12535 2152

15157 2602

19290 3312

24886 4272

29864 5216

38838 6666

41079 7051

43158 7408

46167 7924

48559 8341

49536 8502

49990 8580

52574 9023

55313 9493

57096 9799

57861 9930

58273 1 0000

-------------------------------------------------------------

------------------------- ------------------------------------

TABLE 4 Unalakleet River Test Net Proportions by Sample Perio-d 1983 ( Selective CPUE)

Dates Chinook Coho Pink Chum Misc

64-68 105 00 00 895

69-612N 24 00 83 893

612N-615 1C~ 5 00 61 834

616-619N 78 18 156 748

619N-622 23 45 160 772

623-626N 65 112 247 576

626N-629 22 553 131 294

630-73N 16 576 124 284

73N-76 10 572 158 260

77-710N 00 555 149 296

710N-713 00 540 166 294

714-717N 14 00 513 217 256

717N-720 00 00 532 215 253

721-724N 04 00 493 216 287

724N-727 00 18 202 277 503

728-731N 00 23 242 153 582

731N-83 00 30 112 143 715

84-87N 44 98 241 617

87N-810 182 122 167 529

811-814N 139 95 111 655

814N-B17 96 68 55 7B1

B18-B21N 105 39 1B9 667

821N-824 263 43 142 552

825-B28N 145 53 202 600

828N-831 97 00 171 732

91-94 396 00 72 532

46

--------

--------

TABLE 4 Una1ak1et River Test Net Proportions 1983 ( Selective CPUE) (Continued)

Comparative Apportionment

Species Apportionment

Chinook 2790 Coho 17013 Pink 91881 Churn 58273

------shySubtotal 169957

Misc Species 152537 ------shy

Total 322494

Substrate Comparison -------------------shy

Bank Counts -----shy

South 148465 North 174029

------shy

Total 322494

Percent of Total Counts

09 53

285 181

5408

472

1000

Percent

460 540

1000

47

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TABLE 5A Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

May 27 28

21 5 482

13 13

1313

1313 21 5 697

13 13

1313

1313 30 240 0 013 937 0 00 31 246 2 41 1183 2 08

June 1 237 0 00 1420 2 07 2 3

256 585

13 13

013 bull 13 13

1676 2 261

2 2

6bull 13 4

5 6 8

160 120 middot 125

13 1

13 42 130

2 421 2541 2666

~ 2 3 3

bull 13 4 136 136

9 122 0 130 2788 3 05 11 117 00 2905 3 05 12 126 13 00 3031 3 05 13 117 1 43 3148 4 06 15 118 0 013 3266 4 136 16 116 1 43 3382 5 138 18 240 13 130 3622 5 07 19 121 0 00 3743 5 07 20 116 0 00 3859 5 136 22 118 1 42 3977 6 138 23 119 1 42 4196 7 08 25 240 0 013 4336 7 138 26 119 13 1313 4455 7 138 27 119 13 1313 4574 7 138 29 1213 13 130 4694 7 137 313 1213 13 00 4814 7 07

July 2 238 0 1313 51352 7 07 3 118 13 013 51713 7 07 4 118 1 42 5288 8 138 6 122 0 00 5410 8 07 7 116 13 00 5526 8 07

10 126 0 1313 5652 8 07 11 119 0 013 5771 8 07 13 116 13 130 5887 8 07 14 119 2 84 6006 10 07 17 122 0 00 6128 10 07 18 112 0 1313 6240 10 136 20 119 13 00 6359 10 06 21 112 0 013 6471 10 06

6471 10

48

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TABLE 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983

Cum Cum Date Hours Catch CPUE Hours Catch CPUE

July 24 26

115 120 0 00

115 235

0 0

00

00 27 117 4 00 352 0 00 29 117 0 137 469 4 34 31 116 3 103 585 7 48

August 2 122 0 00 706 7 40 3 122 2 66 828 9 43 5 118 1 34 946 10 42 7 128 14 437 1074 24 89 9 257 14 218 1331 38 114

10 125 21 672 1456 59 162 12 13 middot- 0 00 1469 x 59 161 14 10 7 12 449 1576 71 180 16 122 2 66 1698 73 172 17 123 6 196 1821 79 174 19 118 1 34 1939 80 165 21 112 6 214 2051 86 168 23 120 3 100 217 1 89 164 24 115 2 70 2286 91 159 26 115 5 174 2401 96 160 28 119 0 00 2520 96 152 30 119 4 1 34 2639 100 152 31 117 1 34 2756 101 147

Sept 2 123 5 33 2879 106 147 4 479 15 125 3358 121 144 6 238 11 185 3596 132 147 7 237 5 84 3833 137 143 8 238 6 1 01 4071 143 141 9 242 10 1 65 4313 153 142

10 242 3 50 4555 156 137 11 242 2 33 4797 158 132 12 241 8 133 5038 166 132 14 227 14 247 5265 180 137 15 242 9 149 5507 189 137 16 210 3 57 5717 192 134 17 239 2 33 5956 194 130 18 230 2 35 6186 196 127 20 489 4 33 6675 200 120 21 24 3 50 6915 203 117 22 242 0 00 7157 203 113 23 234 1 17 7391 204 110

----shy

7391 204

Mesh size = 5 14 from 724 to 810

49

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TABLE 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE ------~-----------------------------------------------------------June 16 122 1 33 122 1 33

17 118 0 bull 0 0 240 1 17 20 120 2 67 360 3 33 21 118 0 00 478 3 25 23 119 2 67 597 5 34 24 119 3 102 716 8 45 27 116 19 655 832 27 130 28 120 22 733 952 49 206 30 120 40 1333 1072 89 332

July 1 115 36 1252 1187 125 421 4 122 30 983 1309 155 474 5 114 47 1649 1423 202 568 7 118 30 1016 1541 232 602 8 120 shy 24 800 1661 -$ 256 616

11 122 42 1377 1783 298 669 12 120 29 967 1903 327 687 14 116 37 1276 2019 364 721 15 118 40 1356 2137 404 756 18 121 60 1976 2258 464 822 19 119 30 740 2377 494 831 21 125 61 1952 2502 555 887 22 118 25 847 2627 580 883 25 122 16 525 2749 596 867 26 116 15 517 2865 611 853 28 122 28 918 2987 639 856 29 117 11 376 3104 650 838

August 1 120 7 233 3224 657 815 2 119 9 303 3345 666 796 4 120 3 100 3465 669 772 5 118 5 170 3583 674 752 8 114 7 245 3697 681 734

11 123 7 337 3 82 0 688 720 15 118 2 68 3938 690 701 16 113 5 177 4051 695 686 18 98 3 122 4149 698 673 19 119 1 34 4268 699 655 22 112 0 00 4380 699 638 23 115 0 00 4495 699 622 25 120 2 66 4615 701 606 26 112 1 36 4727 702 594 29 116 0 00 4843 702 580 30 11 5 0 00 4958 702 566

Sept 1 115 0 00 5079 702 553 2 112 0 00 5191 702 541

----shy5079 702

50

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TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

June 5 73 0 00 73 0 00 7 126 0 00 199 0 00 8 127 0 00 326 0 bull 0 0

10 11 4 3 105 440 3 27 12 113 2 71 553 5 36 14 119 1 34 672 6 36 15 116 4 138 788 10 51 17 116 3 103 904 13 56 19 118 6 203 1022 19 74 21 118 0 00 1140 19 67 22 117 10 342 1257 29 92 24 116 3 103 1373 32 93 26 119 11 370 1492 43 115 28 11 8 6 203 1610 $ 49 122 29 115 13 452 1725 62 144

July 1 119 8 269 1844 70 152 3 119 17 571 1963 87 177 5 119 13 437 2082 100 192 6 12 0 17 567 2202 117 213 8 121 7 231 2323 124 214

10 11 4 18 632 2437 142 233 12 115 12 417 2552 154 241 13 116 37 1276 2668 191 286 15 117 16 547 2785 207 297 17 11 8 31 1051 290 3 238 328 19 118 18 610 3021 256 339 20 115 29 1009 3136 285 364 22 122 17 557 3258 302 371 24 115 24 835 3373 326 387 26 120 19 633 3493 345 395 27 117 11 376 3610 356 394 29 117 14 479 3727 370 397 31 116 18 621 3843 388 404

August 2 121 9 298 3964 397 401 3 122 17 557 4086 414 405 5 11 8 8 271 4204 422 402 7 128 19 594 4332 441 407 9 257 10 156 4589 451 393

10 125 14 448 4714 464 394 12 13 1 308 4727 465 393 14 107 5 187 4834 470 389 16 122 4 131 4956 474 383 17 123 15 488 5079 489 385 19 118 8 271 5197 497 383 21 112 3 107 5309 500 378 23 120 6 200 5429 506 373 24 115 7 243 5544 513 370

51

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TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 (Continued)

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

August 26 115 5 174 5657 518 366 28 119 1 34 577 6 519 359 30 119 4 134 5895 523 355 31 117 0 00 6012 523 3 48

Sept 2 123 3 98 613 5 526 343 4 479 2 17 6614 528 319 6 238 1 17 6852 529 309 7 237 0 00 7089 529 298 8 9

238 242

1 2

17

33 7327 7569

clt

530 532

289 281

10 242 3 50 7811 535 274 11 242 0 00 8053 535 266 12 241 2 33 8294 537 259 14 227 3 53 8521 540 253 15 242 0 00 8763 540 246 16 210 1 19 8973 541 241 17 239 2 33 9212 543 236 18 230 0 00 9442 543 230 20 489 0 00 9931 543 219 21 240 2 33 10171 545 214 22 242 0 0 10413 545 209 23 234 0 00 10647 545 205

----shy

10647 545

52

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------

TABLE 6A Unalakleet River Sonar Site Drift Sets5 1 4n Me sh 19 83 bull

Date Time Result

July 19 1405-1413 1 burbot July 23 1040-1055 1 pink caracass July 27 1520-1530 1 coho August 3 1444-1501 4 coho August 22 1930-1937 0 August 23 937-943 1 coho 1 pink carcass August 26 1117-1127 1 coho 3 churn August 31 1018-1034 3 churn

TABLE 6B Unalakleet River Sonar Site Beach Seines 1983

Date Time Distance Result

July 20 1445 120 meters 4 pink 1 churn 13 Dolly Varden 1 whitefish

July 25 1500 120 meters 6 pink 1 churn 1 Dolly Varden 4 whitefish 1 grayling

July 28 1700 120 meters 4 coho 2 pink 2 churn 1 Dolly Varden

August 1 2010 300 meters 4 pink 3 churn 8 Dolly Varden

August 4 1015 130 meters 5 coho 3 pink 3 churn 65 Dolly Varden 3 whitefish 3 grayling

August 24 1110 130 meters 18 coho 2 Dolly Varden 2 grayling

August 29 1715 120 meters 11 coho 1 pink 69 churn 1 Dolly Varden 2 grayling

Seine done at mile 12 Unalakleet River

53

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TABLE 7 AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER CATCH SAMPLE SPORT CATCH AND SPAWNING SURVEYS 1983

II

COMBINED 3-2 4-2 4-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 31 646 6702 5 104 5010 8 167 5688 1 21 5900

Female 17 354 8540 o o 1 21 5450 o o

Total 48 1000 7353 5 104 5010 9 188 5661 1 21 5900

~ 11)

5-2 6-2 7-2 7-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 11 229 7382 6 125 8350 0 0 0 0

Female 2 42 7925 12 250 8742 1 21 10650 1 21 8350

Total 13 271 7465 18 375 8611 1 21 10650 1 21 8350

TABLE 8A AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER TEST NET SAMPLE 1983

-----~-------------------------------------------------------------------------------------------------------

gt

COMBINED 4-2 5-2 5-3 6-2 7-2 NO LENGIH NO LENGIH NO LENGIH NO LENGTH NO LENGTH NO LENGTr

8 14 n

Male 3 333 8107 0 1 111 5800 o 0 2 222 9260 0 0 Female 6 667 8295 0 0 1 111 7600 o o 4 444 8310 1 111 8930 Total 9 10 e 0 8232 0 o 2 222 6700 o o 6 667 8627 1 111 8930

If) If)

5 14 Male 19 1000 6298 12 632 5392 4 211 6990 0 o 3 158 8997 0 0 Female o 0 o o o o o o 0 0 0 0 Total 19 1000 6298 12 632 5392 4 211 6990 o o 3 158 8997 0 0

4 n or Smaller Male 6 667 5930 1 111 4660 2 222 6325 3 333 6090 0 o 0 o Female 3 333 8970 o o o o o o 3 333 8970 0 o Total 9 1000 6943 1 111 466 2 222 6325 3 33 3 6090 3 33 3 8970 0 0

TOTAL Hale 28 757 6413 13 351 5336 7 189 6630 3 8 1 6090 5 13 5 9102 o 0 Female 9 243 852 o o 1 27 7600 o o 7 189 8593 1 2 7 8930 Total 37 1000 6925 13 351 5336 8 216 6751 3 8 1 6090 12 324 88 e 5 1 2 7 8930

---------------------------------------------------------------------------------------------------------

---------------------------------------------------------------------------------------------------------

TABLE 8B AGE SEX AND SIZE COMPOSITION OF NORTON SOUND COHO SALMON UNALAKLEET RIVER TEST NET SAMPLE 5 14 AND 5 78 GEAR 1983

COMBINED 3-2 4-3 4-4 5-4 NO LENGIH NO LENGIH NO LENGTH NO LENGIH NO LENGTH

Male 9 900 5489 0 0 9 900 5489 0 0 Female 1 10 bull 0 552 QJ QJ 0 1 10QJ 5520 0 0 Total 10 1000 5492 0 0 10 1000 5492 0 0 725-731

bull LI)Male 15 938 5645 15 938 5645 Female 1 62 575 QJ 1 62 575 QJ Total 16 lQJ0QJ 5651 16 100QJ 5651 81-87

Male 24 545 5668 23 523 5768 1 23 3350 Female 20 455 5631 20 455 5631 0 0 Total 441QJ0QJ 5651 43 977 57 QJ 4 1 23 335 QJ 88-814

Male 7 500 5797 7 500 5797 QJ 0 Female 7 500 5596 6 429 5587 1 71 5650 Total 14 1000 5696 13 929 1 71 5650570 815-821

Male 5 455 5492 5 455 5492 Female 6 545 5552 6 545 5552 Total 11 lQJ00 5525 11 100QJ 5525 822-828

LIST OF TABLES

Table 1 Page

Unalakleet River Subsistence King Salmon Index 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 39

Table 2 Unalakleet River Final Sonar Counts 1983 bullbullbullbullbull 40

Table 3A Unalakleet River Species Apportionment by Test Period - King Salmon 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 42

Table 3B Unalakleet River Species Apportionment by Test Period - Coho Salmon 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 43

Table 3C

Table 3D

Unalakleet River Species Apportionment by Test Period - Pink Salmon 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 44

Unalakleet River Species Apportionment by Test Period - Chum Salmon 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 45

Table 4 Unalakleet River Test Net Proportions by Sample Period 1983 (selective CPUE) bullbullbullbullbullbullbullbullbullbull 46

Table SA Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983 bullbullbullbullbull 48

Table 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983 bullbullbull 49

Table 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983 bullbull 5~

Table 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 51

Table 6A Unalakleet River Sonar Site Drift Sets 5 14 Mesh 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbull 53

Table 6B Unalakleet River Sonar Site Beach Seines 1983 bullbullbullbullbullbullbullbullbull ~ 53

Table 7 Age Sex and Size Composition of Norton Sound King Salmon Unalakleet River Catch Sample Sport Catch and Spawning Surveys 1983 bullbullbullbullbullbullbullbull 54

Table 8A Age Sex and Size Composition of Norton Sound King Salmon Unalakleet River Test Net Sample 1983 bullbullbullbullbullbullbullbull 55

-ivshy

Page Table 8B Age Sex and Size Composition of Norton Sound

Coho Salmon Unalakleet River Test Net Sample 5 14n and 57811 Gear 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 56

Table 8C Age Sex and Size Composition of Norton Sound Chum Salmon Unalakleet River Test Net 5 1 4 n and 5 7 8 Gea r 19 8 3 bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull 5 8

Table 9A Age Sex and Size Composition of Norton Sound King Salmon Unalakleet Commercial Catch Sample 1983 bullbullbullbullbullbull 61

Table 9B Age Sex and Size Composition of Norton Sound Sockeye Salmon Unalakleet Test Net Sample 5 78 11 5 14 n 4n and Variable Mesh Nets 1 98 3 bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull e $ bull bull bull bull bull bull bull bull bull bull bull 6 2

Table 9C Age Sex and Size Composition of Norton Sound Coho Salmon Unalakleet Commercial Catch Sample 1983 bullbullbullbullbullbullbullbull 63

Table 9D Age Sex and Size Composition of Norton Sound Chum Salmon Unalakleet Commercial Catch Sample 1983 bullbullbullbullbullbullbullbullbullbullbull 64

Appendix Table lAo Unalakleet River Test Net King Salmon Catches 1981-1983 8 1411 Mesh bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 65

Appendix Table lB Unalakleet River Test Net King Salmon Catches 1982-1983 5 Gear bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 67

Appendix Table lC Unalakleet River Test Net Coho Salmon Catches 1981-1983 5 78 n Mesh bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 68

Appendix Table ID Unalakleet River Test Net Pink Salmon Catches 1981-1983 4 n Me sh bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 70

Appendix Table IE Unalakleet River Test Net Chum Salmon Catches 1981-1983 5 78 Mesh bullbullbullbullbullbullbullbull bull bullbullbullbullbullbullbullbullbullbullbullbullbullbull 72

-vshy

INTRODUCTION

The Unalakleet River empties into Norton Sound approximately 130 miles southeast of Nome is approximately 130 miles in length and drains an area of 1087 square miles The Unalakleet River flows from the Nulato hills westward to the town of Unalakleet on the Bering Sea coast Five major tributaries comprise the river all of which support spawning salmon

The town of Unalakleet is situated at the mouth of the Unalakleet River the most important salmon producing river in Norton ~ound Historically the people of the area have depended on the salmon runs for their liveli~ood first as food for themselves and their dogs and more recently as the basis of their cash economy

Attempts to assess salmon escapement to the system have been made annually by aerial stream surveys counting towers on the North River in 1973 and 1974 and on the Chirosky River during 1975 and 1976 Weather and water clarity have often limited these enumeration efforts but escapement estimates have ranged as high as 1477 king (1977) 28600 churn (1978) 491706 pink (1978) and 1184 coho salmon (1980) not including major tributaries

A salmon subsistence survey is conducted by the Commercial Fisheries Division each year in Unalakleet Results have indicated that sUbsistence catch averages have been increasing in recent years The recent five-year average 1978 to 1982 subsistence salmon catches were 922 king 4694 coho 13019 pink and 3840 chum salmon Coho and pink salmon catches have shown the greatest increases due largely to increased returns of these species

Commercial catches in the Unalakleet subdistrict have also increased due to increased effort better technology and the increased returns of coho and pink salmon The recent five-year average (1978-1982) commercial catch for the Unalakleet subdistrict is 5629 king 28427 coho 131016 pink and 43086 chum salmon In 1982 the average commercial fisherman received approximately $6000 from the sale of salmon

Because of the importance of the commercial and subsistence

-1shy

fisheries and the problems of estimating escapement in this subdistrict side-scanning sonar was installed in 1982 in the Unalakleet River in hopes of gaining a more accurate estimate of escapement and at the very least a more consistent index of salmon migration

A test fishing program was in operation in 1981 in the lower four miles of the Unalakleet River Indices from this study were instrumental in helping the area biologist set some commercial fishing periods In 1982 sonar counts proved useful as an index of the coho salmon escapement and were used by the area biologist in extending the coho fishery

A number of problems affecting sonar counts became more apparent during the 1983 season These problems brought on by low river velocity (13 to 17 fps) and tidal f1uctuationi included milling salmon and allocating counts to five different fish classifications

With increased harvest effort on the chinook population a limited sport fish survey was begun

This report presents the results of the Unalakleet sonar projects second year of operation and comparison of test fishing indices from 1981 to 1983

METHODS

Project Deployment

Supplies and equipment were on-site and camp construction was completed on May 28 Both north and south bank counters were in operation on June 4 Sonar counter operation ceased on September 4 91 days after counting was initiated By September 6 the sonar camp had been dismantled and the equipment stored for the winter

Test fishing began on May 27 and ended on September 23

Sonar

The Electrodynamics Division of the Bendix Corporation developed a side- scanning hydroacoustic counter during the 1970s capable of detecting and counting salmon migrating along the banks of tributary streams The side-scan sonar counter is designed to transmit a sonic beam along a 60 foot aluminum tube or substrate

-2shy

Echoes from fish passing through the beam are reflected to the transducer The systems electronics interpret the strength and number of the echoes and tally fish counts

Two Bendix side-scan counters 1981 models were used on the Unalakleet River The respective 60-foot tubular aluminum substrates were deployed from opposite banks of the Unalakleet River Both substrates were positioned so there was at least two feet of water over the sonar beam that is projected immediately above the substrate that is two feet over the transducer housing and seven feet over the target end of the substrate It was found that three feet of water was needed as a buffer to eliminate debris counts due to wind ripples flotsam and sudden water level changes A small weir _ was placed to prevent fish passage inshore from the transducer on both sides of the riverThe substrates were not located directly opposite each other The north bank substrate was located 400 feet upstream from the south bank substrate which was placed in a nearly ideal river bottom profile Unfortunately mud shallows were opposite the south bank During the season fish behavior necessitated movement of the north bank substrate to a site 300 feet downstream of the south bank substrate

The river width at this site is approximately 200 feet The deepest channel is located about 80 feet from shore at the north bank substrate and about 100 feet from shore at the south bank substrate Although one-third of the river is isonified by the sonar beams if fish follow a depth contour then more than two-thirds of the possible fish paths would be covered by the sonar counters

The substrates were moved several times during the summer because of water level changes or for cleaning The substrates were guyed to two dead men each in the form of buried logs held in place with fence posts Stainless steel aircraft cable fastened to each end of the substrate was attached to respective dead men on shore

The cables were roughly parallel and adjusted to hold the substrate perpendicular to shore The inshore cable was long enough to allow the substrate to remain perpendicular to shore even though it might be moved 15 feet from shore The easiest method of movement of the substrate was to use the hydrodynamic shape of the substrate to raise itself and push against the substrate with a handy man jack The inshore footing could then be relocated with a minimum of

-3shy

effort

Although the current at the sonar site was insufficient to raise the tube to the surface it did help in pulling it up to a point where it could be cleaned

Calibration (a comparison of oscilloscope fish counts and sonar fish counts) was scheduled four times daily on both banks The magnitude of the fish milling problem compounded by slow fish passage made this schedule impractical much of the summer Calibration was attempted when usable results seemed impossible it was not attempted at extreme rates of fish passage Calibration was done by comparing echoes on a Tektronix 221 oscilloscope with counts of the sonar counter Salmon passing through the sonar beam produce a distinctive oscilloscope trace A count of 100 fish within 30 minutes the maximum calibration period was required before resetting the sonar fish velocity controls

agreement = Sonar computer count Oscilloscope count

The agreement was then used to adjust the daily counts Agreement of less than 1 indicates the sonar was undercounting and greater than 1 indicates overcounting

When the count agreement varied more than 15 then the following equation was used to derive a new fish velocity

agreement x existing velocity = new velocity

Milling fish became a problem on June 28 on the north bank when slow migrating and milling pink salmon oscars started riding the substrate turbulence wave Based on counting tower observations it was determined that all sixteen sectors were affected On July 1 and 2 the substrate was moved approximately 700 feet downstream to the base of a small cliff with somewhat faster water velocity Pink salmon began riding the substrate at the new site within hours Oscars were not a problem on the south bank during this time therefore in order to estimate the passage on the north bank the average hourly passage rate (percent per hour of the daily total) of the preceding three day period of the south bank was used to calculate daily totals for the

-4shy

north bank based upon hours which were not apparently effected by oscars

Total of Preceding 3-day valid hourly sum of daily

Daily total--North = counts--north x counts--South Total of corresponding hourly counts for preceding 3 days--south

After two weeks of attempting to deal with milling fish the following policy was decided on The sonar beam was raised slightly so that a strong target was seen in the four degree mode but a decrease in target strength was barely apparent in the two degree mode The offshore end of the substrate was moved middotfive feet downstream from the perpendicular placement used earlier The beam was extended as far as possible beyond the target These measures seemed to eliminate fish avoidance of the substrate as a problem

Other milling problems were not satisfactorily resolved Salmon moving downstream were not counted by the sonar but those same fish moving upstream could be counted by the sonar It was decided to invalidate an hourly count if milling fish were observed from a tower or oscilloscope or if sonar criteria were not met Disqualifying sonar criteria were hourly debris checks or a large fish count over 15 The large fish count indicated fish moving over the substrate in a tight school which was characteristic of milling behavior King salmon in the Unalakleet did not seem to reflect a long enough signal to register as large fish however two or three small salmon could register if they were close to the same distance from the transducer and spaced in an overlapping manner

Records of changes in counter settings river conditions and other unusual occurrences were also used in adjusting daily sonar counts

The large fish counter on the 1981 model sonar counter was ignored except as an index of milling fish

Test Fishing

The same test fishing site as in 1981 and 1982 was used during the 1983 season

-5shy

The ten fathom 8 14 gillnet was set from May 27 to May 31 A twenty fathom 8 14 gillnet was set on June 1 and fished until June 4 From June 5 to September 4 the period of sonar operation a rotating schedule of twelve hour time blocks over a period of three days was used The nets used included

1 20 fm 8 14 mesh 2 25 fm 5 14 mesh (June 5-August l025 fm 5 78

mesh (August II-September 4) 3 25 fm 4 mesh 4 15 fm variable mesh

The 25 fm 5 78 mesh gillnet was fished from September 5 to September 25 The 8 14 mesh net and the v~riable mesh net were fished concurrently The three-day rotation schedule allowed each net to be fished during one 12-hour high tidedaylight period and one 12-hour low tidenight period Nets were rotated at 0900 and 2HJ0 daily The 8 14 mesh net was removed from the rotation on July 21 because the chinook migration was completed

The CPUE (catch100 fm-hr) was calculated for the two most efficient nets for each species to be used in apportioning sonar counts These CPUEs for chinook coho pink chum and other species presumably detectable by sonar were totaled and the species CPUE divided by the total CPUE for all species to give the percent of the periods sonar counts to each specie The seventh day of the week was apportioned by using the previous 3-day proportions for one half of the counts and the following 3-day proportions for the second half of the counts

Test net data (Tables 5A 5B 5C and 5D) was calculated for the single most effective net for each species for separate analys is

Weights lengths and scale samples were taken from all chinook coho and chum captured Pink salmon were counted only Tissue samples were taken from test net chinook salmon for electrophoretic studies coordinated by the Stock Separation Section of the Commercial Fisheries Division

Counting Towers

Counting towers were erected immediately adjacent to the

-6shy

onshore end of each substrate (Figure 2) As in 1982 the use of visual tower counts for comparison with sonar counts could not be relied upon due to river width surface disturbances etc however several short comparisons were possible The towers proved invaluable in determining the presence of moribund fish debris passage presence of oscars fish swimming behavior etc The 1983 low river level and generally less turbidity as compared to 1982 allowed more rapid and concrete identification of the milling fish Without use of the tower the severity of the milling fish problem may not have been discovered

Drift SetsBeach Seines

Drift sets and beach seines were done for comparison with test net species apportionment and to determine fish passage beyond the sonar counting range Drjft sets were accomplished by drifting a 25 fm 5 14 gillnet perpendicular to the shore The 25 fm net allowed the major portion of the river to be fished thus only one drift was done per set as opposed to 1982 when a drift set was done near each bank Set durations ranged from 5 to 17 minutes dependent upon boat traffic wind conditions etc Drift sets were done on July 19 23 and 27 and August 3 22 23 26 and 31

Beach seines were accomplished by using a 25 fm 3 mesh seine immediately downstream of the south bank substrate Shoreline conditions prevented se1n1ng near either north bank site Beach seines on the south bank were done on July 20 25 and 28 and August 1 and 29 Beach Unalakleet River were done on August 4 and levels prevented seining from August 4 to

seines 24

24

at High

mile 12 water

Riyer Surveys

Two river surveys were attempted during 1983 A jet boat was taken up the North River on July 29 This proved to be early for carcass sampling but weather and equipment problems prevented a later survey

A float trip of the Old Woman and upper Main River was also made A plane landing mishap greatly reduced the scope of this trip Weather prevented any follow up work

Subsistence Surveys

A daily survey of three to five sUbsistence fishermen is

-7shy

made from the time the first king salman is caught early in June through the remainder of that month These people must be trustworthy conscientious about checking their nets and fairly successful The average daily catch is compared to the previous day to develope the annual trend and the total catches and the annual trend is compared to past years Commercial catch and effort data and the up-river test net data are used in conjuction with the subsistence catch to anticipate strategies

future catches and management

During late September made of Unalakleet

an The

extensive door to door survey is Annual Management Report covers

subsistence surveys in detail

RESULTS

~istence Survey

The Unalakleet subsistence survey made in late September interviewed 74 subsistence fishermen 68 of whom fished in the river and 17 who fished in the ocean The catch was predominantly from the river with 1480 king 6311 coho 13458 pink and 4124 chum salmon reported The ocean subsistence catch was 388 king 577 coho 350 pink and 277 chum salmon

The mean chinook salmon catch per fisherman peaked on June 16 This compares with July 3 in 1982 and June 19-22 in 1981 All subsistence fishermen surveyed in 1983 were fishing within one mile of the river mouth

Chinook subsistence survey results are presented in Table 1 and Figure 3 As in 1981 and 1982 the variances in nets fishing times and net locations call for calculation of mean catch per fisherman as opposed to catch per unit effort

Sonar

During the period from June 4 to September 4 the final sonar count was 322494 148465 (460) counts were tallied on the south bank and 174029 (540) counts were tallied on the north bank

The daily sonar counts (Table 2) were adjusted by the test net proportions (Table 4) to give the following escapement estimates for the period June to September 4

-8shy

Species Total Count LQf Total

Chinook 2790 09 Coho 17013 53 Pink 91881 285 Chum 58273 181 Other 152537 AL2

322494 1000

Tables 3A 3B 3C 3D and 4D present this data by 3-day sample period Based on discussions with Al Menin and Dave Gaudet about the ability of sonar counters to discriminate between various target shapes and sizes any fish two and one half pounds or laterally compressed fish ~f one pound or larger could be counted by a sonar calibrated for pink salmon Fish other than salmon considered countable by the sonar counter included arctic char grayling burbot and broad humpback and Alaska whitefish

Peak adjusted apportioned sonar counts were on June 23 for chinook August 21 for coho July 18 for pink and July 25 for chum salmon (Tables 3A 3B 3C and 3D Figures 4A 4B 4C and 4D)

Representative passage rates on the south bank by sector and by hour for July 3-5 and August 21-23 are presented in Figures 6 and 7 These periods were chosen because of minimal adjustments to raw counts north bank counts are not presented due to lack of relatively clean data for those periods

Test Fishing

A total of 19 chinook (74 male - 26 female) 294 coho (61 male 39 female) 1156 pink (52 male - 48 female) and 915 chum (54 male - 46 female) was captured from May 27 to September 23 The fish were sampled and delivered to Hartha Nanouk a local subsistence fisherman as per agreement for the use of her traditional set-net site

Based on the single most effective test net CPUE the chinook migration did not peak as such but rather showed most consistent catches on June 22 and 23 coho migration peaked from August 10-14 pinks from July 18-22 and chum on July 13

-9shy

Comparisons of daily CPUE and cumulative CPUE for all salmon species are presented in Tables SA 58 5C and 5D and Figures 8 thru 15 Of interest although not as useful for annual comparison due to different test net methods net mesh sizes fishing time etc the actual fish caught from 1981 to 1983 are

~ 1982 un 41 chinook 39 chinook 39 chinook

107 coho 310 coho 294 coho 1463 pink 5114 pink 1156 pink

722 chum 375 chum 915 chum

f

Age Sex and Size Composition of Test Net Catches

An age analysis of scales collected during the project indicated the following age compositions king salmon all gear sizes (4-2131 5-2 22~ 5-3816-23217-2 3) coho salmon 5 14 and 5 78 gear (3-2 051 4-3 981 4-4 051 5-4 l) chum salmon 5 14 and 5 78 gear (3-1 21 4-1 611 5-1 37) Tables 7 thru 9D show the age composition of the various species broken down by date and the mesh sizes used during the project

Counting Towers

As cited visual tower counts could not be made on the Unalakleet River due to river width surface disturbances turbidity etc However visual observations proved invaluable in identifying spawning behavior etc and resulted in the downstream relocation of the north bank substrate and development of the method used to adjust north bank sonar counts

Drift SetsBeach Seines

Tables 6A and 68 present the results of drift sets and beach seines respectively Drift set results indicate that the portion of the river not isonified was not used by migrating salmon ie the species most countable coho pink and chum salmon would seem to follow the banks and were counted by the side-scan sonar

Beach seines proved useful in verifying the high presence of

-10shy

species other than salmon the relative abundance of coho salmon in August and the presence of spawning churn salmon in the south bank substrate area

Riyer SurveysAerial SurVeys

On July 29th 32 miles of the North River were surveyed by a two-person crew for the purpose of counting live chinook and sampling chinook carcasses A total of 166 live chinook were counted and 3 chinook carcasses were sampled with approximately half of the chinook counted between mile 25 and mile 32

Originally the Old Woman River survey was to be a six-day trip Due to the damage the plane suffered dropping the first crew member off the second member and support gear was not av~ilable for the survey as planned~ The survey of the Old Woman River August 6-8 counted 60 king salmon but only four samples were collected Weather prevented the survey of the main river

King Salmon Spo rt Fish Survey

A sport fishing lodge on the Unalakleet River is responsible for the majority of the sport fishing effort Periodic surveying of lodge personnel indicates that a fair quantity of king salmon are harvested by sport fishing A quantitative survey was not done however due to limited time available A total of 43 chinook was sampled from sport fishing catches

DISCUSSION

River levels were lower than normal during the spring of 1983 due to the lack of snow accumulation the previous winter The Unalakleet River cleared early and became quite low during late June and early July The low water allowed the counting towers at the sonar site to be used during calm survey days which wasnt possible during 1982

Tower observations made as early as June 28 showed serious milling problems at the north bank sonar site The sonar was moved to a new site on July 2 Milling fish were still a considerable problem at the new site but about half the hourly count were considered acceptable during mid-July Milling salmon were a problem through most of the field season Milling salmon of all four species were observed

-11shy

during the latter half of each respective migration Pink salmon presented the worst problem and churn the least Unfortunately milling pinks invalidated the churn count since the two runs overlap Coho salmon exhibited some milling but an accurate evaluation of this problem was hampered by turbid water Milling coho became a problem after August 20

The milling observed from the towers was not apparent to the observer at the oscilloscope because of the overwhelming number of spikes present at that stage of the salmon migration During 1982 when tower observations were not possible the oscilloscope appeared to have an extraordinary number of spikes The large pink salmon count recorded in 1982 may have been an artifact of milling behavior that was unobservable then Commercial catch and test net catch statistics indicate a large pink salmon run f However it is likely fish milling over the substrate exaggerated the sonar count although without tower observations it can not be proven

Another problem observed during the 1983 field season was avoidance of the substrate by all fish species This problem was at its worst when water was low and clear Angling the substrate slightly downstream as it was after July 15 helped considerably By extending the sonar beam periodically it was determined that as visibility decreased so did avoidance

Species apportionment of the sonar count was done using test net catches Some of the problems encountered with the sampling scheme should be pointed out Test nets were assumed to sample the same portion of the river as the sonar Since three net lengths were used this seemed suspect Different species migrate at different depths The non-salmon species tend to migrate in shallow water near shore and generally the larger species migrate in deeper water nearer mid-stream Since only a IS-fathom net of the most efficient type for non-salmon species was fished in the preferred habitat for these fish it is likely that the calculated efficiency was too high The other test nets were longer and also sampled some preferred areas for the targeted species

The opposite case is true for king salmon The 8 14 net is 20 fathoms longS fathoms shorter than the other nets used on this project This net does not cover all of the area preferred by king salmon This means king salmon

-12shy

escapement is probably underestimated but the 20 fathom net samples an area further out than the sonar counter even with its beam extended So the number of king salmon counted by the sonar is over estimated King salmon make up such a small percentage of the total salmon run that counting errors are more significant than this apportionment error

Very few churn and pink salmon were caught in the offshore end of the nets It is assumed these long nets had very little effect on the sonar count species apportionment

CONCLUSION

The feasibility of counting salmon in the Unalakleet River using side-scanning sonar is unlikely due to milling fish and the inal1ility to accurately apportion the sonar count to the various fish species It is possible that a partial escapement count could be made further up river above one or more of the major tributaries to the system The new north bank sonar site that showed some improvement over the former site had two differences that seemed to affect salmon migration The current was faster over the substrate at the second site and the river gravels were less ideal spawning habitat The new site was located below a rock bluff on the outside of a river bend

There are two similar sites up river about ten miles where the current is faster and the bottom is even less conducive to spawning During the 1984 field season a comparison of the smoother running south bank site and these up-river sites could be made The best time to do this would be during August when only coho salmon are migrating The counter should be operating by August 15 prior to milling activity and maintained for a week to evaluate if milling salmon became apparent later after the migration peaked The south bank site could be used as a control for comparison to 1983

-13shy

I I

5 1 2

Miles No tt h _

shy

R Iv er

Figure 1 Unalakleet Escapement Project

lt

Son sr

Fig u r e 2 S 0 0 a r Sit eSc hem a tic

ITower

Original Ninth Bank Sonar

Drift sets 5 minutes

Lf)

So t h Ban k Son a

lTower

o Work Tent

B Living Quarters

Figure 3Unalakleet Subsistence Survey 1983

Kin g- S a I m 0 n

1bull

10

9

c 8aI

-lE 11 t a til 7 ~ II 6 ~ U

5 til

0

c 4 til til

E 3 I

1 V

~ 2

1

27 1 5 10 15 20 25 30

~ June

Figure 4A Specie apportionment king salmon Un-alakleet sonar 1983

~

25

-l20

c 1 5 III () III

11

10

5

I

J

27 31 5 10 15 20 25 30 5 10 15 20 25 31

June Ju Iy

Figure 4B Specie middotapp~~tionment coho salmon Unalakleet sonar 1983

30

25

co ~

20

1 t~

C $

u 1 5 CD a

10

5

5 10 15 20 25 31 5 10 15 20 25 31 5

Ju August Sept e

Figure 4C Specie apportionment pink salmon Unalakleet sonar 1983

1 6

1 5

14

1 3

12

1 1

c II U CII

Ashy

10

9

a

7

01 ~

6

5

4

3

2

1

1 5 10 1 5

June

2 O 25 30 5 10 15 20

Ju Iy

25 31 5 10 15 20

August

25 31 5 10

Septem

Figure 40 Species apportionment chum salmon Unalakleet sonar 1983

16

1 5

1 4

13

1 2

1 1

10

9 c 8GI U

GI middot7 A

6

5

4

3

2

1

~

o N

~

1 5 10 15 20 25 30 5 10 15 20 25 3 1 5 10 15 20 25 31 5 10

June Ju Iy August Sept e

Figure 5 Specie apportionment Unalakleet sonar 1983

50

4

40

35

c J 30 0 U

~ 0 25 0 c Q)

u ~

Q) 20a

15

10

5

o L-_lt---__

King Coho Pink Chum Misc

21

----

Figure 6 Sector distribution of counts Unalakleet sonar1983

35

30

25

c 20 G)

() G) 15

0

10

5

35

30

25 c G)

() 20

G)

0 15

10

5

( s ()u t h ban k )

July 3-5

~-2 4 6 8 1 0 1 2 1 4 1 6shy

Sector

August 21-23

2 4 6 8 10 12 14 16

Sector

22

Figure 7 Hourly distribution of counts Unalakleet sonar 1983

(south bank)

14

12

10

c 8 GI U ~

6

July 3-5

~GI

I =~ Q

4

2 0

2 4 6 8 10 12 14 1 6 18 20 22 24

TIme

9

8

7

6

5 c GI U ~ 4 GI

Q

3

2

August 21-23

1

0

2 4 6 8 10 12 14

TIme

16

23

18 20 22 24

Figure 8 Unalakleet River Test Fishing Daily King CPUE in 8 14 mesh 1983

10

9 N

8 shy

7 I 0 c 6E

n

l J I I

0 0 5 c (J 4 co 0

3

2

1

I I

27 1 5 10 15 20 25 1 5 10 15 20 25 31

~ June July

Figure 9 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1983bull

~

middot10

09 U N

I 08 0 c 07E I ()

- 06 E-0 0 05 shy~ () 04 ca - ()

03E I 0 02

01

27 1 5 10 15 2Q 25 1 5 10 15 20 25 31

June July

Figure 10 Unalakleet River Test Fishing Daily Coho CPUE in 5 78 mesh 1983

1

6

5

I 0

NI II I 0 t

E 4

0 0 c 3() cu 0

2

1

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sept U

Figure 11 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1983

200

175

150

I 0 c 125E I ()

E

r-shy-0 I I N 0 100 c ()-as ()

75E I 0

50

25

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sel ber

20

Figure 12 Unalakleet River Test Fishing Daily Pink CPUE in 4 mesh 1983

18

I

0) N

II

16

I ishy

14 J 0 t 12shyE 0 10 0 shys 8 () as

0 6 1 I V 4

2

~ I

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

--

Figure 13 Unalakleet River Test Fishing Cumulat ive Pink CPUE in 4 mesh 1983

10

9 01 N 8

J 0 J 7 E J 0 6 E- 50 ~

amp 4() ca

0 3 E J

0 2

1

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

Figure 14 Unalakleet River Test Fishing Daily CPUE in 5 14 amp 5 78 mesh 1983

14

13shy

12

11

10

9 J 0 8

I z shy-E 7 0 0 shys ~u aI 0

4 I

31

2

1

II

0 C1)I 11

I I I II

bull y AA(net changed to 5 78

AA A 11 I

~ I~ V ~

- I

VI

1 5 10 15 20- 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

cJune July August

Figure 15 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 14 amp 5 78 mesh 1983

It

5

--l C)

net changed to 5 78

~ 4 o

c E (J ~

3E o o c 2 u ~ -(J

E ~ (J 1

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 16 Unalakleet River Test Fishing Catch Proportions 1983

60

55

---- King50

__ Coho 45

P--Q Pink

40 __ Chum

I LU 35J D I 0

30 ICQ 0 25 I

N Cl0 20

c G)

15u G)

D

10

5 A 1 I

I 4 I

I I

3 lt

~

2

I I1 - I bull I

I ~ ~ ~ t -J ~~ - _

r

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 17 Unalakleet Area Temperatures 1983

18

16

14

12

til 10I

u-G) 80 CI) G) G) 6 C) G)

Q 4

2

C) C)

__ Air

0--0 River 2

0

-2

-4

---------~ ~

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August 5e

4

Figure 18 Unalakleet River Turbidity and Depth 1983

__ Secchi Reading

-t ()

II) G)-G)

3

iE 2

1

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August

~ 1 _ ~ r--- I shy I __ I 01 --shy

Figure 19 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1981-83

27 31 5

May

_1981

____ 1982

o 0 1983 11) C)

Changed to 5 78 mesh

I

t

~-~o-~ Q-O--Oolt)-(IQ-----l

--1

_10 15 20 25 30 5 10 15 20 25 31

June July

I I I

~

0 ~

r E ~

CJ shyE 0 0 I

shyr u-cu CJ

E ~

CJ

4

35

30

25

20

15

10

05

Figure 20 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 78 mesh 1981-83

5

4 lI 0

z

E lI 0 3 E-0 0 2 r CJ-cu 0

E lI 1 0

__1981 ~~

~ ___1982

a 01983 5 148 mesh from 65-810

_----shy-- 0 - -- C1) A - _ - ~

~ I

I

II I I I I I

I I

1

~ -

-

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 21 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 mesh- 1981-83

8

70

60

50

40 0

r 30E

0 20E-0 0 10 s= u 8 tV 0 6E 0 4

2

__1981 ____ 1982

_1983

shy--- -- shy--- shy J - -

I

I

C1- J

I

-----l---l ~--~r---------------r--

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 22 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1981-83

_1981

~ __ 1982

~1983

25

00I _ __ _ _ C)~ I __ _ I

I V o 20 rt I I

E I AshyI o E 15-o o z u 10 tU o E I o 5

I

1 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

July August 5

----------------------------------------------------------------

Table 1 Unalakleet River Subsistence King Salmon Index 1983

Number of Number of Date Fishermen Chinook Average

08 02 18 05 05 00 02 58 92 62 72 72 42 28 52 60 62 20 47 50 35 25 15

June 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Totals

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 4 4 4

4

3 1 7 2 2 o 1

23 37 25 29 29 17 11 21 24 25

6 14 15 14 H~

6

322

~

39

---------------------- ---------- --------------------------------------

----------------------------------------------------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983

Daily Proportion Cumu1 Prop Date South North Total of Total Cumulative of Total

64 7 23 30 1313131 313 013131 65 44 187 231 00137 261 01308 66 12 162 174 01305 435 01313 67 8 283 291 1313139 726 01322 68 0000 726 13022 69 3 221 224 013137 950 13029 610 26 245 271 131308 1221 13037 611 56 254 310 131310 1531 131347 612 44 736 780 013 24 2311 13071 613 64 1188 1252 01339 3563 01113 614 59 1752 1811 0056 5374 0166 615 97 844 941 01329 6315 0195 616 165 729 894 0028 7209 0223 617 151 i 604 1755 0054 8964 middot 0277 618 i ll 1524 1635 0051 10599 13328 619 175 2000 2175 0067 12774 13395 620 171 21320 2191 0068 14965 0463 621 220 1613 1833 0057 16798 0520 622 199 2065 2264 0070 19062 0590 623 362 21334 2396 0074 21458 13664 624 876 3403 4279 13133 25737 0797 625 1244 2023 3267- 0101 29004 0898 626 738 1601 2339 0073 31343 0971 627 573 3265 3838 0119 35181 1090 628 547 1868 2415 0075 37596 1165 629 528 4028 4556 0141 42152 1306 630 430 430 0013 42582 1319 71 240 240 01307 42822 1326 72 201 975 1176 0036 43998 1362 73 309 8842 9151 0284 53149 1646 74 475 6385 6860 0213 60009 1859 75 565 3342 3907 0121 63916 1980 76 1377 2094 3471 0108 67387 2088 77 1416 3173 4589 0142 71976 2230 78 1472 1420 2892 0090 74868 2320 79 2071 1452 3523 01113 78391 2430 710 3318 2434 5752 0178 84143 2608 711 2673 2866 5539 13172 89682 2780 712 1665 1747 3412 13106 93094 2886 713 21317 1951 3968 13123 97062 3009 714 2991 2664 5655 0175 102717 3184 715 2646 2548 5194 13161 107911 3345 716 2488 2886 5374 0167 113285 3512 717 1585 4063 5648 0175 118933 3687 718 3559 9326 12885 0400 131818 4087 719 2948 2398 5346 13166 137164 4253 720 1640 3330 4970 0154 142134 4407 721 2416 6420 8836 0274 150970 4681 722 3298 3298 0102 154268 4783 723 5007 5007 0155 159275 4938

40

--------------------------------------------------------------------

--------------------------------------------------------------------

-----------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983 (Continued)

Daily Proportion Cum Prop Date South North Total of Total Cumu1at i ve of Total

724 4005 7804 11809 0366 171084 5304 725 2453 3392 5845 0181 176929 5485 726 2166 12094 14260 0442 191189 5927 727 1914 4472 6386 0198 197575 6125 728 1603 3463 5066 0157 202641 6282 729 1251 1914 3165 0098 205806 6380 730 1710 2495 4205 en30 210011 6510 731 2542 1887 4429 0137 214440 6647 81 4479 2271 6750 0209 221190 6856 82 1103 1806 2909 0091 224099 6947 83 1719 942 2661 0083 226760 bull 7030 84 1519 2557 4076 0126 230836 7156 85 1259 1113 2372 0074 233208 7230 86 940 2189 3129 0097 236337 7327 87 1467 4354 5821 0180 242158 7507 88 2318 1584 3902 0121 246060 7628 89 2098 1505 3603 0112 249663 7740 810 2629 1517 4146 bull 0129 253809 7869 811 3753 1091 4844 0150 258653 8019 812 1489 523 2012 0062 260665 8081 813 744 353 1097 0034 261762 8386 814 981 981 bull 0030 262743 8145 815 2324 2324 0072 265067 8217 816 2638 2638 0082 267705 8299 817 2073 731 2804 0087 270509 8115 818 2244 675 2919 0091 273428 8477 819 3240 696 3936 0122 277364 8599 820 2363 503 2866 0089 280230 8688 821 6789 1111 7900 0245 288130 8933 822 6489 563 7052 0219 295182 9152 823 5077 298 5375 0167 300557 9319 824 2616 298 2914 0090 303471 9409 825 3933 412 4345 0135 307816 9544 826 1393 554 1947 0060 309763 9604 827 1203 463 1666 0052 311429 9656 828 1197 542 1739 0054 313168 9710 829 1244 221 1465 0045 314633 9755 830 1011 199 1210 0038 315843 9793 831 718 214 932 0029 316775 9822 91 1324 318 1642 0052 318417 9874 92 1362 307 1669 0052 320086 9926 93 1146 314 1460 0045 321546 9971 94 652 296 948 bull 0029 322494 10000

148465 174029 322494 10000

41

----------------------------------------------------------------------

-------------------------------------------------------------------- --

------

TABLE 3A Unalakleet River Species Apportionment by Test Period King Salmon 1983

3-Day App Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 76 0272 76 0272

69-612N 28 0100 104 0372

612N-615 461 1652 565 2024

616-619N 419 1502 984 3526

619N-622 170 0609 1154 4135

623-626N 722 2588 1876 6723

626N-629 264 0946 2140 7669

630-73N 103 0639 2243 8038

73N-76 188 0674 2431 8712

77-710N 0 0000 2431 8712

710N-713 0 0000 2431 8712

714-717N 267 0957 2698 9969

717N-720 0 0000 2698 9669

721-724N 92 0331 2790 1 0000

724N-727 0 0000 2790 10000

728-731N 0 0000 2790 1 0000

731N-83 0 0000 2790 1 0000

2790 10000

42

Dates

714-717N

717N-720

721-724N

724N-727

728-731N

731N-83

84-87N

87N-810

811-814N

814N-817

818-821N

821N-824

825-828N

828N-831

91-94

TABLE 3B Unalakleet River Species Apportionment by Test Period Coho Salmon

3-Day Count

583

338

436

550

2650

1174

793

1435

5074

1280

435

2265

171H3

1983

Proportion of Season Total

0000

0000

0000

0343

0199

0256

0323

1558

0690

0466

0843

2983

0752

0256

1331

Cumulative Count

583

921

1357

1907

4557

5731

6524

7959

13033

14313

14748

17013

Cumulative Proportion

0000

0000

0000

0343

0542

0798

1121

2679

3369

3835

4678

7661

8413

8669

10000

43

------------------------------------------------------------------

------------------------------------------------------------------

----- ------

TABLE 3C Unalakleet River Species Apportionment by Test Period Pink Salmon 1983

3-Day P roport ion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 0 0000

6l2N-615 0 0000

616-6l9N 97 0012

6l9N-622 332 0036

623-626N 1245 0136

626N-629 6624 0721

630-73N 3699 0403

73N-76 10762 1171

77-7l0N 7704 0838

710N-7l3 8529 0928

714-717N 9771 1063

717N-720 13845 1507

721-724N 11361 1236

724N-727 6544 0712

728-731N 3545 0386

731N-83 1628 0177

84-87N 1224 0133

87N-810 1777 0193

811-814N 802 0087

814N-817 561 0061

818-821N 533 0058

821N-824 8313 13091

825-828N 468 0051

828N-831 0 0000

91-94 0 0000

91881 10000

0 0000

0 0000

0 0000

97 0012

429 0048

1674 0184

8298 0905

11997 1308

22759 2479

30463 3317

38992 4245

48763 5308

62608 6815

73969 8051

80513 8763

84058 9149

85686 9326

86910 9459

88687 9652

89489 9739

90050 9800

90583 9858

91413 9949

91881 10000

91881 10000

91881 1 0000 44

------------------------------------------------------------------

------------ ------------------------------------------------------

----- ------

TABLE 3D Unalakleet River Species Apportionment by Test Period Chum Salmon 1983

3-Day Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 100 0017

612N-615 268 0046

616-619N 838 0144

619N-622 1180 0202

623-626N 2744 0471

626N-629 1569 0270

630-73N 796 0137

73N-76 2972 0510

77-710N 2068 0355

710N-713 2622 0450

714-717N 4133 0710

717N-720 5596 0960

721-724N 4978 0854

724N-727 8974 1540

728-731N 2241 0385

731N-83 2079 ~0357

84-87N 3009 0516

87N-810 2432 0417

811-814N 937 0161

814N-817 454 0078

818-821N 2584 0443

821N-824 2739 0470

825-828N 1783 0306

828N-831 765 0131

91-94 412 0070

58273 10000 45

0 0000

100 0017

368 0063

1206 0207

2386 0409

5130 0880

6699 1150

7495 1287 f

10467 1797

12535 2152

15157 2602

19290 3312

24886 4272

29864 5216

38838 6666

41079 7051

43158 7408

46167 7924

48559 8341

49536 8502

49990 8580

52574 9023

55313 9493

57096 9799

57861 9930

58273 1 0000

-------------------------------------------------------------

------------------------- ------------------------------------

TABLE 4 Unalakleet River Test Net Proportions by Sample Perio-d 1983 ( Selective CPUE)

Dates Chinook Coho Pink Chum Misc

64-68 105 00 00 895

69-612N 24 00 83 893

612N-615 1C~ 5 00 61 834

616-619N 78 18 156 748

619N-622 23 45 160 772

623-626N 65 112 247 576

626N-629 22 553 131 294

630-73N 16 576 124 284

73N-76 10 572 158 260

77-710N 00 555 149 296

710N-713 00 540 166 294

714-717N 14 00 513 217 256

717N-720 00 00 532 215 253

721-724N 04 00 493 216 287

724N-727 00 18 202 277 503

728-731N 00 23 242 153 582

731N-83 00 30 112 143 715

84-87N 44 98 241 617

87N-810 182 122 167 529

811-814N 139 95 111 655

814N-B17 96 68 55 7B1

B18-B21N 105 39 1B9 667

821N-824 263 43 142 552

825-B28N 145 53 202 600

828N-831 97 00 171 732

91-94 396 00 72 532

46

--------

--------

TABLE 4 Una1ak1et River Test Net Proportions 1983 ( Selective CPUE) (Continued)

Comparative Apportionment

Species Apportionment

Chinook 2790 Coho 17013 Pink 91881 Churn 58273

------shySubtotal 169957

Misc Species 152537 ------shy

Total 322494

Substrate Comparison -------------------shy

Bank Counts -----shy

South 148465 North 174029

------shy

Total 322494

Percent of Total Counts

09 53

285 181

5408

472

1000

Percent

460 540

1000

47

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TABLE 5A Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

May 27 28

21 5 482

13 13

1313

1313 21 5 697

13 13

1313

1313 30 240 0 013 937 0 00 31 246 2 41 1183 2 08

June 1 237 0 00 1420 2 07 2 3

256 585

13 13

013 bull 13 13

1676 2 261

2 2

6bull 13 4

5 6 8

160 120 middot 125

13 1

13 42 130

2 421 2541 2666

~ 2 3 3

bull 13 4 136 136

9 122 0 130 2788 3 05 11 117 00 2905 3 05 12 126 13 00 3031 3 05 13 117 1 43 3148 4 06 15 118 0 013 3266 4 136 16 116 1 43 3382 5 138 18 240 13 130 3622 5 07 19 121 0 00 3743 5 07 20 116 0 00 3859 5 136 22 118 1 42 3977 6 138 23 119 1 42 4196 7 08 25 240 0 013 4336 7 138 26 119 13 1313 4455 7 138 27 119 13 1313 4574 7 138 29 1213 13 130 4694 7 137 313 1213 13 00 4814 7 07

July 2 238 0 1313 51352 7 07 3 118 13 013 51713 7 07 4 118 1 42 5288 8 138 6 122 0 00 5410 8 07 7 116 13 00 5526 8 07

10 126 0 1313 5652 8 07 11 119 0 013 5771 8 07 13 116 13 130 5887 8 07 14 119 2 84 6006 10 07 17 122 0 00 6128 10 07 18 112 0 1313 6240 10 136 20 119 13 00 6359 10 06 21 112 0 013 6471 10 06

6471 10

48

------------------------------------------------------------------

------------------------------------------------------------------

TABLE 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983

Cum Cum Date Hours Catch CPUE Hours Catch CPUE

July 24 26

115 120 0 00

115 235

0 0

00

00 27 117 4 00 352 0 00 29 117 0 137 469 4 34 31 116 3 103 585 7 48

August 2 122 0 00 706 7 40 3 122 2 66 828 9 43 5 118 1 34 946 10 42 7 128 14 437 1074 24 89 9 257 14 218 1331 38 114

10 125 21 672 1456 59 162 12 13 middot- 0 00 1469 x 59 161 14 10 7 12 449 1576 71 180 16 122 2 66 1698 73 172 17 123 6 196 1821 79 174 19 118 1 34 1939 80 165 21 112 6 214 2051 86 168 23 120 3 100 217 1 89 164 24 115 2 70 2286 91 159 26 115 5 174 2401 96 160 28 119 0 00 2520 96 152 30 119 4 1 34 2639 100 152 31 117 1 34 2756 101 147

Sept 2 123 5 33 2879 106 147 4 479 15 125 3358 121 144 6 238 11 185 3596 132 147 7 237 5 84 3833 137 143 8 238 6 1 01 4071 143 141 9 242 10 1 65 4313 153 142

10 242 3 50 4555 156 137 11 242 2 33 4797 158 132 12 241 8 133 5038 166 132 14 227 14 247 5265 180 137 15 242 9 149 5507 189 137 16 210 3 57 5717 192 134 17 239 2 33 5956 194 130 18 230 2 35 6186 196 127 20 489 4 33 6675 200 120 21 24 3 50 6915 203 117 22 242 0 00 7157 203 113 23 234 1 17 7391 204 110

----shy

7391 204

Mesh size = 5 14 from 724 to 810

49

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TABLE 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE ------~-----------------------------------------------------------June 16 122 1 33 122 1 33

17 118 0 bull 0 0 240 1 17 20 120 2 67 360 3 33 21 118 0 00 478 3 25 23 119 2 67 597 5 34 24 119 3 102 716 8 45 27 116 19 655 832 27 130 28 120 22 733 952 49 206 30 120 40 1333 1072 89 332

July 1 115 36 1252 1187 125 421 4 122 30 983 1309 155 474 5 114 47 1649 1423 202 568 7 118 30 1016 1541 232 602 8 120 shy 24 800 1661 -$ 256 616

11 122 42 1377 1783 298 669 12 120 29 967 1903 327 687 14 116 37 1276 2019 364 721 15 118 40 1356 2137 404 756 18 121 60 1976 2258 464 822 19 119 30 740 2377 494 831 21 125 61 1952 2502 555 887 22 118 25 847 2627 580 883 25 122 16 525 2749 596 867 26 116 15 517 2865 611 853 28 122 28 918 2987 639 856 29 117 11 376 3104 650 838

August 1 120 7 233 3224 657 815 2 119 9 303 3345 666 796 4 120 3 100 3465 669 772 5 118 5 170 3583 674 752 8 114 7 245 3697 681 734

11 123 7 337 3 82 0 688 720 15 118 2 68 3938 690 701 16 113 5 177 4051 695 686 18 98 3 122 4149 698 673 19 119 1 34 4268 699 655 22 112 0 00 4380 699 638 23 115 0 00 4495 699 622 25 120 2 66 4615 701 606 26 112 1 36 4727 702 594 29 116 0 00 4843 702 580 30 11 5 0 00 4958 702 566

Sept 1 115 0 00 5079 702 553 2 112 0 00 5191 702 541

----shy5079 702

50

-----------------------------------------------------------------

------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

June 5 73 0 00 73 0 00 7 126 0 00 199 0 00 8 127 0 00 326 0 bull 0 0

10 11 4 3 105 440 3 27 12 113 2 71 553 5 36 14 119 1 34 672 6 36 15 116 4 138 788 10 51 17 116 3 103 904 13 56 19 118 6 203 1022 19 74 21 118 0 00 1140 19 67 22 117 10 342 1257 29 92 24 116 3 103 1373 32 93 26 119 11 370 1492 43 115 28 11 8 6 203 1610 $ 49 122 29 115 13 452 1725 62 144

July 1 119 8 269 1844 70 152 3 119 17 571 1963 87 177 5 119 13 437 2082 100 192 6 12 0 17 567 2202 117 213 8 121 7 231 2323 124 214

10 11 4 18 632 2437 142 233 12 115 12 417 2552 154 241 13 116 37 1276 2668 191 286 15 117 16 547 2785 207 297 17 11 8 31 1051 290 3 238 328 19 118 18 610 3021 256 339 20 115 29 1009 3136 285 364 22 122 17 557 3258 302 371 24 115 24 835 3373 326 387 26 120 19 633 3493 345 395 27 117 11 376 3610 356 394 29 117 14 479 3727 370 397 31 116 18 621 3843 388 404

August 2 121 9 298 3964 397 401 3 122 17 557 4086 414 405 5 11 8 8 271 4204 422 402 7 128 19 594 4332 441 407 9 257 10 156 4589 451 393

10 125 14 448 4714 464 394 12 13 1 308 4727 465 393 14 107 5 187 4834 470 389 16 122 4 131 4956 474 383 17 123 15 488 5079 489 385 19 118 8 271 5197 497 383 21 112 3 107 5309 500 378 23 120 6 200 5429 506 373 24 115 7 243 5544 513 370

51

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TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 (Continued)

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

August 26 115 5 174 5657 518 366 28 119 1 34 577 6 519 359 30 119 4 134 5895 523 355 31 117 0 00 6012 523 3 48

Sept 2 123 3 98 613 5 526 343 4 479 2 17 6614 528 319 6 238 1 17 6852 529 309 7 237 0 00 7089 529 298 8 9

238 242

1 2

17

33 7327 7569

clt

530 532

289 281

10 242 3 50 7811 535 274 11 242 0 00 8053 535 266 12 241 2 33 8294 537 259 14 227 3 53 8521 540 253 15 242 0 00 8763 540 246 16 210 1 19 8973 541 241 17 239 2 33 9212 543 236 18 230 0 00 9442 543 230 20 489 0 00 9931 543 219 21 240 2 33 10171 545 214 22 242 0 0 10413 545 209 23 234 0 00 10647 545 205

----shy

10647 545

52

------------------------------------------------------------------------

------

TABLE 6A Unalakleet River Sonar Site Drift Sets5 1 4n Me sh 19 83 bull

Date Time Result

July 19 1405-1413 1 burbot July 23 1040-1055 1 pink caracass July 27 1520-1530 1 coho August 3 1444-1501 4 coho August 22 1930-1937 0 August 23 937-943 1 coho 1 pink carcass August 26 1117-1127 1 coho 3 churn August 31 1018-1034 3 churn

TABLE 6B Unalakleet River Sonar Site Beach Seines 1983

Date Time Distance Result

July 20 1445 120 meters 4 pink 1 churn 13 Dolly Varden 1 whitefish

July 25 1500 120 meters 6 pink 1 churn 1 Dolly Varden 4 whitefish 1 grayling

July 28 1700 120 meters 4 coho 2 pink 2 churn 1 Dolly Varden

August 1 2010 300 meters 4 pink 3 churn 8 Dolly Varden

August 4 1015 130 meters 5 coho 3 pink 3 churn 65 Dolly Varden 3 whitefish 3 grayling

August 24 1110 130 meters 18 coho 2 Dolly Varden 2 grayling

August 29 1715 120 meters 11 coho 1 pink 69 churn 1 Dolly Varden 2 grayling

Seine done at mile 12 Unalakleet River

53

--------------------------------------------------------------------------------------------------

--------------------------------------------------------------------------------------------------

TABLE 7 AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER CATCH SAMPLE SPORT CATCH AND SPAWNING SURVEYS 1983

II

COMBINED 3-2 4-2 4-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 31 646 6702 5 104 5010 8 167 5688 1 21 5900

Female 17 354 8540 o o 1 21 5450 o o

Total 48 1000 7353 5 104 5010 9 188 5661 1 21 5900

~ 11)

5-2 6-2 7-2 7-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 11 229 7382 6 125 8350 0 0 0 0

Female 2 42 7925 12 250 8742 1 21 10650 1 21 8350

Total 13 271 7465 18 375 8611 1 21 10650 1 21 8350

TABLE 8A AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER TEST NET SAMPLE 1983

-----~-------------------------------------------------------------------------------------------------------

gt

COMBINED 4-2 5-2 5-3 6-2 7-2 NO LENGIH NO LENGIH NO LENGIH NO LENGTH NO LENGTH NO LENGTr

8 14 n

Male 3 333 8107 0 1 111 5800 o 0 2 222 9260 0 0 Female 6 667 8295 0 0 1 111 7600 o o 4 444 8310 1 111 8930 Total 9 10 e 0 8232 0 o 2 222 6700 o o 6 667 8627 1 111 8930

If) If)

5 14 Male 19 1000 6298 12 632 5392 4 211 6990 0 o 3 158 8997 0 0 Female o 0 o o o o o o 0 0 0 0 Total 19 1000 6298 12 632 5392 4 211 6990 o o 3 158 8997 0 0

4 n or Smaller Male 6 667 5930 1 111 4660 2 222 6325 3 333 6090 0 o 0 o Female 3 333 8970 o o o o o o 3 333 8970 0 o Total 9 1000 6943 1 111 466 2 222 6325 3 33 3 6090 3 33 3 8970 0 0

TOTAL Hale 28 757 6413 13 351 5336 7 189 6630 3 8 1 6090 5 13 5 9102 o 0 Female 9 243 852 o o 1 27 7600 o o 7 189 8593 1 2 7 8930 Total 37 1000 6925 13 351 5336 8 216 6751 3 8 1 6090 12 324 88 e 5 1 2 7 8930

---------------------------------------------------------------------------------------------------------

---------------------------------------------------------------------------------------------------------

TABLE 8B AGE SEX AND SIZE COMPOSITION OF NORTON SOUND COHO SALMON UNALAKLEET RIVER TEST NET SAMPLE 5 14 AND 5 78 GEAR 1983

COMBINED 3-2 4-3 4-4 5-4 NO LENGIH NO LENGIH NO LENGTH NO LENGIH NO LENGTH

Male 9 900 5489 0 0 9 900 5489 0 0 Female 1 10 bull 0 552 QJ QJ 0 1 10QJ 5520 0 0 Total 10 1000 5492 0 0 10 1000 5492 0 0 725-731

bull LI)Male 15 938 5645 15 938 5645 Female 1 62 575 QJ 1 62 575 QJ Total 16 lQJ0QJ 5651 16 100QJ 5651 81-87

Male 24 545 5668 23 523 5768 1 23 3350 Female 20 455 5631 20 455 5631 0 0 Total 441QJ0QJ 5651 43 977 57 QJ 4 1 23 335 QJ 88-814

Male 7 500 5797 7 500 5797 QJ 0 Female 7 500 5596 6 429 5587 1 71 5650 Total 14 1000 5696 13 929 1 71 5650570 815-821

Male 5 455 5492 5 455 5492 Female 6 545 5552 6 545 5552 Total 11 lQJ00 5525 11 100QJ 5525 822-828

Page Table 8B Age Sex and Size Composition of Norton Sound

Coho Salmon Unalakleet River Test Net Sample 5 14n and 57811 Gear 1983 bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 56

Table 8C Age Sex and Size Composition of Norton Sound Chum Salmon Unalakleet River Test Net 5 1 4 n and 5 7 8 Gea r 19 8 3 bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull 5 8

Table 9A Age Sex and Size Composition of Norton Sound King Salmon Unalakleet Commercial Catch Sample 1983 bullbullbullbullbullbull 61

Table 9B Age Sex and Size Composition of Norton Sound Sockeye Salmon Unalakleet Test Net Sample 5 78 11 5 14 n 4n and Variable Mesh Nets 1 98 3 bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull bull e $ bull bull bull bull bull bull bull bull bull bull bull 6 2

Table 9C Age Sex and Size Composition of Norton Sound Coho Salmon Unalakleet Commercial Catch Sample 1983 bullbullbullbullbullbullbullbull 63

Table 9D Age Sex and Size Composition of Norton Sound Chum Salmon Unalakleet Commercial Catch Sample 1983 bullbullbullbullbullbullbullbullbullbullbull 64

Appendix Table lAo Unalakleet River Test Net King Salmon Catches 1981-1983 8 1411 Mesh bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 65

Appendix Table lB Unalakleet River Test Net King Salmon Catches 1982-1983 5 Gear bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 67

Appendix Table lC Unalakleet River Test Net Coho Salmon Catches 1981-1983 5 78 n Mesh bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 68

Appendix Table ID Unalakleet River Test Net Pink Salmon Catches 1981-1983 4 n Me sh bullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbullbull 70

Appendix Table IE Unalakleet River Test Net Chum Salmon Catches 1981-1983 5 78 Mesh bullbullbullbullbullbullbullbull bull bullbullbullbullbullbullbullbullbullbullbullbullbullbull 72

-vshy

INTRODUCTION

The Unalakleet River empties into Norton Sound approximately 130 miles southeast of Nome is approximately 130 miles in length and drains an area of 1087 square miles The Unalakleet River flows from the Nulato hills westward to the town of Unalakleet on the Bering Sea coast Five major tributaries comprise the river all of which support spawning salmon

The town of Unalakleet is situated at the mouth of the Unalakleet River the most important salmon producing river in Norton ~ound Historically the people of the area have depended on the salmon runs for their liveli~ood first as food for themselves and their dogs and more recently as the basis of their cash economy

Attempts to assess salmon escapement to the system have been made annually by aerial stream surveys counting towers on the North River in 1973 and 1974 and on the Chirosky River during 1975 and 1976 Weather and water clarity have often limited these enumeration efforts but escapement estimates have ranged as high as 1477 king (1977) 28600 churn (1978) 491706 pink (1978) and 1184 coho salmon (1980) not including major tributaries

A salmon subsistence survey is conducted by the Commercial Fisheries Division each year in Unalakleet Results have indicated that sUbsistence catch averages have been increasing in recent years The recent five-year average 1978 to 1982 subsistence salmon catches were 922 king 4694 coho 13019 pink and 3840 chum salmon Coho and pink salmon catches have shown the greatest increases due largely to increased returns of these species

Commercial catches in the Unalakleet subdistrict have also increased due to increased effort better technology and the increased returns of coho and pink salmon The recent five-year average (1978-1982) commercial catch for the Unalakleet subdistrict is 5629 king 28427 coho 131016 pink and 43086 chum salmon In 1982 the average commercial fisherman received approximately $6000 from the sale of salmon

Because of the importance of the commercial and subsistence

-1shy

fisheries and the problems of estimating escapement in this subdistrict side-scanning sonar was installed in 1982 in the Unalakleet River in hopes of gaining a more accurate estimate of escapement and at the very least a more consistent index of salmon migration

A test fishing program was in operation in 1981 in the lower four miles of the Unalakleet River Indices from this study were instrumental in helping the area biologist set some commercial fishing periods In 1982 sonar counts proved useful as an index of the coho salmon escapement and were used by the area biologist in extending the coho fishery

A number of problems affecting sonar counts became more apparent during the 1983 season These problems brought on by low river velocity (13 to 17 fps) and tidal f1uctuationi included milling salmon and allocating counts to five different fish classifications

With increased harvest effort on the chinook population a limited sport fish survey was begun

This report presents the results of the Unalakleet sonar projects second year of operation and comparison of test fishing indices from 1981 to 1983

METHODS

Project Deployment

Supplies and equipment were on-site and camp construction was completed on May 28 Both north and south bank counters were in operation on June 4 Sonar counter operation ceased on September 4 91 days after counting was initiated By September 6 the sonar camp had been dismantled and the equipment stored for the winter

Test fishing began on May 27 and ended on September 23

Sonar

The Electrodynamics Division of the Bendix Corporation developed a side- scanning hydroacoustic counter during the 1970s capable of detecting and counting salmon migrating along the banks of tributary streams The side-scan sonar counter is designed to transmit a sonic beam along a 60 foot aluminum tube or substrate

-2shy

Echoes from fish passing through the beam are reflected to the transducer The systems electronics interpret the strength and number of the echoes and tally fish counts

Two Bendix side-scan counters 1981 models were used on the Unalakleet River The respective 60-foot tubular aluminum substrates were deployed from opposite banks of the Unalakleet River Both substrates were positioned so there was at least two feet of water over the sonar beam that is projected immediately above the substrate that is two feet over the transducer housing and seven feet over the target end of the substrate It was found that three feet of water was needed as a buffer to eliminate debris counts due to wind ripples flotsam and sudden water level changes A small weir _ was placed to prevent fish passage inshore from the transducer on both sides of the riverThe substrates were not located directly opposite each other The north bank substrate was located 400 feet upstream from the south bank substrate which was placed in a nearly ideal river bottom profile Unfortunately mud shallows were opposite the south bank During the season fish behavior necessitated movement of the north bank substrate to a site 300 feet downstream of the south bank substrate

The river width at this site is approximately 200 feet The deepest channel is located about 80 feet from shore at the north bank substrate and about 100 feet from shore at the south bank substrate Although one-third of the river is isonified by the sonar beams if fish follow a depth contour then more than two-thirds of the possible fish paths would be covered by the sonar counters

The substrates were moved several times during the summer because of water level changes or for cleaning The substrates were guyed to two dead men each in the form of buried logs held in place with fence posts Stainless steel aircraft cable fastened to each end of the substrate was attached to respective dead men on shore

The cables were roughly parallel and adjusted to hold the substrate perpendicular to shore The inshore cable was long enough to allow the substrate to remain perpendicular to shore even though it might be moved 15 feet from shore The easiest method of movement of the substrate was to use the hydrodynamic shape of the substrate to raise itself and push against the substrate with a handy man jack The inshore footing could then be relocated with a minimum of

-3shy

effort

Although the current at the sonar site was insufficient to raise the tube to the surface it did help in pulling it up to a point where it could be cleaned

Calibration (a comparison of oscilloscope fish counts and sonar fish counts) was scheduled four times daily on both banks The magnitude of the fish milling problem compounded by slow fish passage made this schedule impractical much of the summer Calibration was attempted when usable results seemed impossible it was not attempted at extreme rates of fish passage Calibration was done by comparing echoes on a Tektronix 221 oscilloscope with counts of the sonar counter Salmon passing through the sonar beam produce a distinctive oscilloscope trace A count of 100 fish within 30 minutes the maximum calibration period was required before resetting the sonar fish velocity controls

agreement = Sonar computer count Oscilloscope count

The agreement was then used to adjust the daily counts Agreement of less than 1 indicates the sonar was undercounting and greater than 1 indicates overcounting

When the count agreement varied more than 15 then the following equation was used to derive a new fish velocity

agreement x existing velocity = new velocity

Milling fish became a problem on June 28 on the north bank when slow migrating and milling pink salmon oscars started riding the substrate turbulence wave Based on counting tower observations it was determined that all sixteen sectors were affected On July 1 and 2 the substrate was moved approximately 700 feet downstream to the base of a small cliff with somewhat faster water velocity Pink salmon began riding the substrate at the new site within hours Oscars were not a problem on the south bank during this time therefore in order to estimate the passage on the north bank the average hourly passage rate (percent per hour of the daily total) of the preceding three day period of the south bank was used to calculate daily totals for the

-4shy

north bank based upon hours which were not apparently effected by oscars

Total of Preceding 3-day valid hourly sum of daily

Daily total--North = counts--north x counts--South Total of corresponding hourly counts for preceding 3 days--south

After two weeks of attempting to deal with milling fish the following policy was decided on The sonar beam was raised slightly so that a strong target was seen in the four degree mode but a decrease in target strength was barely apparent in the two degree mode The offshore end of the substrate was moved middotfive feet downstream from the perpendicular placement used earlier The beam was extended as far as possible beyond the target These measures seemed to eliminate fish avoidance of the substrate as a problem

Other milling problems were not satisfactorily resolved Salmon moving downstream were not counted by the sonar but those same fish moving upstream could be counted by the sonar It was decided to invalidate an hourly count if milling fish were observed from a tower or oscilloscope or if sonar criteria were not met Disqualifying sonar criteria were hourly debris checks or a large fish count over 15 The large fish count indicated fish moving over the substrate in a tight school which was characteristic of milling behavior King salmon in the Unalakleet did not seem to reflect a long enough signal to register as large fish however two or three small salmon could register if they were close to the same distance from the transducer and spaced in an overlapping manner

Records of changes in counter settings river conditions and other unusual occurrences were also used in adjusting daily sonar counts

The large fish counter on the 1981 model sonar counter was ignored except as an index of milling fish

Test Fishing

The same test fishing site as in 1981 and 1982 was used during the 1983 season

-5shy

The ten fathom 8 14 gillnet was set from May 27 to May 31 A twenty fathom 8 14 gillnet was set on June 1 and fished until June 4 From June 5 to September 4 the period of sonar operation a rotating schedule of twelve hour time blocks over a period of three days was used The nets used included

1 20 fm 8 14 mesh 2 25 fm 5 14 mesh (June 5-August l025 fm 5 78

mesh (August II-September 4) 3 25 fm 4 mesh 4 15 fm variable mesh

The 25 fm 5 78 mesh gillnet was fished from September 5 to September 25 The 8 14 mesh net and the v~riable mesh net were fished concurrently The three-day rotation schedule allowed each net to be fished during one 12-hour high tidedaylight period and one 12-hour low tidenight period Nets were rotated at 0900 and 2HJ0 daily The 8 14 mesh net was removed from the rotation on July 21 because the chinook migration was completed

The CPUE (catch100 fm-hr) was calculated for the two most efficient nets for each species to be used in apportioning sonar counts These CPUEs for chinook coho pink chum and other species presumably detectable by sonar were totaled and the species CPUE divided by the total CPUE for all species to give the percent of the periods sonar counts to each specie The seventh day of the week was apportioned by using the previous 3-day proportions for one half of the counts and the following 3-day proportions for the second half of the counts

Test net data (Tables 5A 5B 5C and 5D) was calculated for the single most effective net for each species for separate analys is

Weights lengths and scale samples were taken from all chinook coho and chum captured Pink salmon were counted only Tissue samples were taken from test net chinook salmon for electrophoretic studies coordinated by the Stock Separation Section of the Commercial Fisheries Division

Counting Towers

Counting towers were erected immediately adjacent to the

-6shy

onshore end of each substrate (Figure 2) As in 1982 the use of visual tower counts for comparison with sonar counts could not be relied upon due to river width surface disturbances etc however several short comparisons were possible The towers proved invaluable in determining the presence of moribund fish debris passage presence of oscars fish swimming behavior etc The 1983 low river level and generally less turbidity as compared to 1982 allowed more rapid and concrete identification of the milling fish Without use of the tower the severity of the milling fish problem may not have been discovered

Drift SetsBeach Seines

Drift sets and beach seines were done for comparison with test net species apportionment and to determine fish passage beyond the sonar counting range Drjft sets were accomplished by drifting a 25 fm 5 14 gillnet perpendicular to the shore The 25 fm net allowed the major portion of the river to be fished thus only one drift was done per set as opposed to 1982 when a drift set was done near each bank Set durations ranged from 5 to 17 minutes dependent upon boat traffic wind conditions etc Drift sets were done on July 19 23 and 27 and August 3 22 23 26 and 31

Beach seines were accomplished by using a 25 fm 3 mesh seine immediately downstream of the south bank substrate Shoreline conditions prevented se1n1ng near either north bank site Beach seines on the south bank were done on July 20 25 and 28 and August 1 and 29 Beach Unalakleet River were done on August 4 and levels prevented seining from August 4 to

seines 24

24

at High

mile 12 water

Riyer Surveys

Two river surveys were attempted during 1983 A jet boat was taken up the North River on July 29 This proved to be early for carcass sampling but weather and equipment problems prevented a later survey

A float trip of the Old Woman and upper Main River was also made A plane landing mishap greatly reduced the scope of this trip Weather prevented any follow up work

Subsistence Surveys

A daily survey of three to five sUbsistence fishermen is

-7shy

made from the time the first king salman is caught early in June through the remainder of that month These people must be trustworthy conscientious about checking their nets and fairly successful The average daily catch is compared to the previous day to develope the annual trend and the total catches and the annual trend is compared to past years Commercial catch and effort data and the up-river test net data are used in conjuction with the subsistence catch to anticipate strategies

future catches and management

During late September made of Unalakleet

an The

extensive door to door survey is Annual Management Report covers

subsistence surveys in detail

RESULTS

~istence Survey

The Unalakleet subsistence survey made in late September interviewed 74 subsistence fishermen 68 of whom fished in the river and 17 who fished in the ocean The catch was predominantly from the river with 1480 king 6311 coho 13458 pink and 4124 chum salmon reported The ocean subsistence catch was 388 king 577 coho 350 pink and 277 chum salmon

The mean chinook salmon catch per fisherman peaked on June 16 This compares with July 3 in 1982 and June 19-22 in 1981 All subsistence fishermen surveyed in 1983 were fishing within one mile of the river mouth

Chinook subsistence survey results are presented in Table 1 and Figure 3 As in 1981 and 1982 the variances in nets fishing times and net locations call for calculation of mean catch per fisherman as opposed to catch per unit effort

Sonar

During the period from June 4 to September 4 the final sonar count was 322494 148465 (460) counts were tallied on the south bank and 174029 (540) counts were tallied on the north bank

The daily sonar counts (Table 2) were adjusted by the test net proportions (Table 4) to give the following escapement estimates for the period June to September 4

-8shy

Species Total Count LQf Total

Chinook 2790 09 Coho 17013 53 Pink 91881 285 Chum 58273 181 Other 152537 AL2

322494 1000

Tables 3A 3B 3C 3D and 4D present this data by 3-day sample period Based on discussions with Al Menin and Dave Gaudet about the ability of sonar counters to discriminate between various target shapes and sizes any fish two and one half pounds or laterally compressed fish ~f one pound or larger could be counted by a sonar calibrated for pink salmon Fish other than salmon considered countable by the sonar counter included arctic char grayling burbot and broad humpback and Alaska whitefish

Peak adjusted apportioned sonar counts were on June 23 for chinook August 21 for coho July 18 for pink and July 25 for chum salmon (Tables 3A 3B 3C and 3D Figures 4A 4B 4C and 4D)

Representative passage rates on the south bank by sector and by hour for July 3-5 and August 21-23 are presented in Figures 6 and 7 These periods were chosen because of minimal adjustments to raw counts north bank counts are not presented due to lack of relatively clean data for those periods

Test Fishing

A total of 19 chinook (74 male - 26 female) 294 coho (61 male 39 female) 1156 pink (52 male - 48 female) and 915 chum (54 male - 46 female) was captured from May 27 to September 23 The fish were sampled and delivered to Hartha Nanouk a local subsistence fisherman as per agreement for the use of her traditional set-net site

Based on the single most effective test net CPUE the chinook migration did not peak as such but rather showed most consistent catches on June 22 and 23 coho migration peaked from August 10-14 pinks from July 18-22 and chum on July 13

-9shy

Comparisons of daily CPUE and cumulative CPUE for all salmon species are presented in Tables SA 58 5C and 5D and Figures 8 thru 15 Of interest although not as useful for annual comparison due to different test net methods net mesh sizes fishing time etc the actual fish caught from 1981 to 1983 are

~ 1982 un 41 chinook 39 chinook 39 chinook

107 coho 310 coho 294 coho 1463 pink 5114 pink 1156 pink

722 chum 375 chum 915 chum

f

Age Sex and Size Composition of Test Net Catches

An age analysis of scales collected during the project indicated the following age compositions king salmon all gear sizes (4-2131 5-2 22~ 5-3816-23217-2 3) coho salmon 5 14 and 5 78 gear (3-2 051 4-3 981 4-4 051 5-4 l) chum salmon 5 14 and 5 78 gear (3-1 21 4-1 611 5-1 37) Tables 7 thru 9D show the age composition of the various species broken down by date and the mesh sizes used during the project

Counting Towers

As cited visual tower counts could not be made on the Unalakleet River due to river width surface disturbances turbidity etc However visual observations proved invaluable in identifying spawning behavior etc and resulted in the downstream relocation of the north bank substrate and development of the method used to adjust north bank sonar counts

Drift SetsBeach Seines

Tables 6A and 68 present the results of drift sets and beach seines respectively Drift set results indicate that the portion of the river not isonified was not used by migrating salmon ie the species most countable coho pink and chum salmon would seem to follow the banks and were counted by the side-scan sonar

Beach seines proved useful in verifying the high presence of

-10shy

species other than salmon the relative abundance of coho salmon in August and the presence of spawning churn salmon in the south bank substrate area

Riyer SurveysAerial SurVeys

On July 29th 32 miles of the North River were surveyed by a two-person crew for the purpose of counting live chinook and sampling chinook carcasses A total of 166 live chinook were counted and 3 chinook carcasses were sampled with approximately half of the chinook counted between mile 25 and mile 32

Originally the Old Woman River survey was to be a six-day trip Due to the damage the plane suffered dropping the first crew member off the second member and support gear was not av~ilable for the survey as planned~ The survey of the Old Woman River August 6-8 counted 60 king salmon but only four samples were collected Weather prevented the survey of the main river

King Salmon Spo rt Fish Survey

A sport fishing lodge on the Unalakleet River is responsible for the majority of the sport fishing effort Periodic surveying of lodge personnel indicates that a fair quantity of king salmon are harvested by sport fishing A quantitative survey was not done however due to limited time available A total of 43 chinook was sampled from sport fishing catches

DISCUSSION

River levels were lower than normal during the spring of 1983 due to the lack of snow accumulation the previous winter The Unalakleet River cleared early and became quite low during late June and early July The low water allowed the counting towers at the sonar site to be used during calm survey days which wasnt possible during 1982

Tower observations made as early as June 28 showed serious milling problems at the north bank sonar site The sonar was moved to a new site on July 2 Milling fish were still a considerable problem at the new site but about half the hourly count were considered acceptable during mid-July Milling salmon were a problem through most of the field season Milling salmon of all four species were observed

-11shy

during the latter half of each respective migration Pink salmon presented the worst problem and churn the least Unfortunately milling pinks invalidated the churn count since the two runs overlap Coho salmon exhibited some milling but an accurate evaluation of this problem was hampered by turbid water Milling coho became a problem after August 20

The milling observed from the towers was not apparent to the observer at the oscilloscope because of the overwhelming number of spikes present at that stage of the salmon migration During 1982 when tower observations were not possible the oscilloscope appeared to have an extraordinary number of spikes The large pink salmon count recorded in 1982 may have been an artifact of milling behavior that was unobservable then Commercial catch and test net catch statistics indicate a large pink salmon run f However it is likely fish milling over the substrate exaggerated the sonar count although without tower observations it can not be proven

Another problem observed during the 1983 field season was avoidance of the substrate by all fish species This problem was at its worst when water was low and clear Angling the substrate slightly downstream as it was after July 15 helped considerably By extending the sonar beam periodically it was determined that as visibility decreased so did avoidance

Species apportionment of the sonar count was done using test net catches Some of the problems encountered with the sampling scheme should be pointed out Test nets were assumed to sample the same portion of the river as the sonar Since three net lengths were used this seemed suspect Different species migrate at different depths The non-salmon species tend to migrate in shallow water near shore and generally the larger species migrate in deeper water nearer mid-stream Since only a IS-fathom net of the most efficient type for non-salmon species was fished in the preferred habitat for these fish it is likely that the calculated efficiency was too high The other test nets were longer and also sampled some preferred areas for the targeted species

The opposite case is true for king salmon The 8 14 net is 20 fathoms longS fathoms shorter than the other nets used on this project This net does not cover all of the area preferred by king salmon This means king salmon

-12shy

escapement is probably underestimated but the 20 fathom net samples an area further out than the sonar counter even with its beam extended So the number of king salmon counted by the sonar is over estimated King salmon make up such a small percentage of the total salmon run that counting errors are more significant than this apportionment error

Very few churn and pink salmon were caught in the offshore end of the nets It is assumed these long nets had very little effect on the sonar count species apportionment

CONCLUSION

The feasibility of counting salmon in the Unalakleet River using side-scanning sonar is unlikely due to milling fish and the inal1ility to accurately apportion the sonar count to the various fish species It is possible that a partial escapement count could be made further up river above one or more of the major tributaries to the system The new north bank sonar site that showed some improvement over the former site had two differences that seemed to affect salmon migration The current was faster over the substrate at the second site and the river gravels were less ideal spawning habitat The new site was located below a rock bluff on the outside of a river bend

There are two similar sites up river about ten miles where the current is faster and the bottom is even less conducive to spawning During the 1984 field season a comparison of the smoother running south bank site and these up-river sites could be made The best time to do this would be during August when only coho salmon are migrating The counter should be operating by August 15 prior to milling activity and maintained for a week to evaluate if milling salmon became apparent later after the migration peaked The south bank site could be used as a control for comparison to 1983

-13shy

I I

5 1 2

Miles No tt h _

shy

R Iv er

Figure 1 Unalakleet Escapement Project

lt

Son sr

Fig u r e 2 S 0 0 a r Sit eSc hem a tic

ITower

Original Ninth Bank Sonar

Drift sets 5 minutes

Lf)

So t h Ban k Son a

lTower

o Work Tent

B Living Quarters

Figure 3Unalakleet Subsistence Survey 1983

Kin g- S a I m 0 n

1bull

10

9

c 8aI

-lE 11 t a til 7 ~ II 6 ~ U

5 til

0

c 4 til til

E 3 I

1 V

~ 2

1

27 1 5 10 15 20 25 30

~ June

Figure 4A Specie apportionment king salmon Un-alakleet sonar 1983

~

25

-l20

c 1 5 III () III

11

10

5

I

J

27 31 5 10 15 20 25 30 5 10 15 20 25 31

June Ju Iy

Figure 4B Specie middotapp~~tionment coho salmon Unalakleet sonar 1983

30

25

co ~

20

1 t~

C $

u 1 5 CD a

10

5

5 10 15 20 25 31 5 10 15 20 25 31 5

Ju August Sept e

Figure 4C Specie apportionment pink salmon Unalakleet sonar 1983

1 6

1 5

14

1 3

12

1 1

c II U CII

Ashy

10

9

a

7

01 ~

6

5

4

3

2

1

1 5 10 1 5

June

2 O 25 30 5 10 15 20

Ju Iy

25 31 5 10 15 20

August

25 31 5 10

Septem

Figure 40 Species apportionment chum salmon Unalakleet sonar 1983

16

1 5

1 4

13

1 2

1 1

10

9 c 8GI U

GI middot7 A

6

5

4

3

2

1

~

o N

~

1 5 10 15 20 25 30 5 10 15 20 25 3 1 5 10 15 20 25 31 5 10

June Ju Iy August Sept e

Figure 5 Specie apportionment Unalakleet sonar 1983

50

4

40

35

c J 30 0 U

~ 0 25 0 c Q)

u ~

Q) 20a

15

10

5

o L-_lt---__

King Coho Pink Chum Misc

21

----

Figure 6 Sector distribution of counts Unalakleet sonar1983

35

30

25

c 20 G)

() G) 15

0

10

5

35

30

25 c G)

() 20

G)

0 15

10

5

( s ()u t h ban k )

July 3-5

~-2 4 6 8 1 0 1 2 1 4 1 6shy

Sector

August 21-23

2 4 6 8 10 12 14 16

Sector

22

Figure 7 Hourly distribution of counts Unalakleet sonar 1983

(south bank)

14

12

10

c 8 GI U ~

6

July 3-5

~GI

I =~ Q

4

2 0

2 4 6 8 10 12 14 1 6 18 20 22 24

TIme

9

8

7

6

5 c GI U ~ 4 GI

Q

3

2

August 21-23

1

0

2 4 6 8 10 12 14

TIme

16

23

18 20 22 24

Figure 8 Unalakleet River Test Fishing Daily King CPUE in 8 14 mesh 1983

10

9 N

8 shy

7 I 0 c 6E

n

l J I I

0 0 5 c (J 4 co 0

3

2

1

I I

27 1 5 10 15 20 25 1 5 10 15 20 25 31

~ June July

Figure 9 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1983bull

~

middot10

09 U N

I 08 0 c 07E I ()

- 06 E-0 0 05 shy~ () 04 ca - ()

03E I 0 02

01

27 1 5 10 15 2Q 25 1 5 10 15 20 25 31

June July

Figure 10 Unalakleet River Test Fishing Daily Coho CPUE in 5 78 mesh 1983

1

6

5

I 0

NI II I 0 t

E 4

0 0 c 3() cu 0

2

1

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sept U

Figure 11 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1983

200

175

150

I 0 c 125E I ()

E

r-shy-0 I I N 0 100 c ()-as ()

75E I 0

50

25

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sel ber

20

Figure 12 Unalakleet River Test Fishing Daily Pink CPUE in 4 mesh 1983

18

I

0) N

II

16

I ishy

14 J 0 t 12shyE 0 10 0 shys 8 () as

0 6 1 I V 4

2

~ I

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

--

Figure 13 Unalakleet River Test Fishing Cumulat ive Pink CPUE in 4 mesh 1983

10

9 01 N 8

J 0 J 7 E J 0 6 E- 50 ~

amp 4() ca

0 3 E J

0 2

1

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

Figure 14 Unalakleet River Test Fishing Daily CPUE in 5 14 amp 5 78 mesh 1983

14

13shy

12

11

10

9 J 0 8

I z shy-E 7 0 0 shys ~u aI 0

4 I

31

2

1

II

0 C1)I 11

I I I II

bull y AA(net changed to 5 78

AA A 11 I

~ I~ V ~

- I

VI

1 5 10 15 20- 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

cJune July August

Figure 15 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 14 amp 5 78 mesh 1983

It

5

--l C)

net changed to 5 78

~ 4 o

c E (J ~

3E o o c 2 u ~ -(J

E ~ (J 1

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 16 Unalakleet River Test Fishing Catch Proportions 1983

60

55

---- King50

__ Coho 45

P--Q Pink

40 __ Chum

I LU 35J D I 0

30 ICQ 0 25 I

N Cl0 20

c G)

15u G)

D

10

5 A 1 I

I 4 I

I I

3 lt

~

2

I I1 - I bull I

I ~ ~ ~ t -J ~~ - _

r

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 17 Unalakleet Area Temperatures 1983

18

16

14

12

til 10I

u-G) 80 CI) G) G) 6 C) G)

Q 4

2

C) C)

__ Air

0--0 River 2

0

-2

-4

---------~ ~

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August 5e

4

Figure 18 Unalakleet River Turbidity and Depth 1983

__ Secchi Reading

-t ()

II) G)-G)

3

iE 2

1

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August

~ 1 _ ~ r--- I shy I __ I 01 --shy

Figure 19 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1981-83

27 31 5

May

_1981

____ 1982

o 0 1983 11) C)

Changed to 5 78 mesh

I

t

~-~o-~ Q-O--Oolt)-(IQ-----l

--1

_10 15 20 25 30 5 10 15 20 25 31

June July

I I I

~

0 ~

r E ~

CJ shyE 0 0 I

shyr u-cu CJ

E ~

CJ

4

35

30

25

20

15

10

05

Figure 20 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 78 mesh 1981-83

5

4 lI 0

z

E lI 0 3 E-0 0 2 r CJ-cu 0

E lI 1 0

__1981 ~~

~ ___1982

a 01983 5 148 mesh from 65-810

_----shy-- 0 - -- C1) A - _ - ~

~ I

I

II I I I I I

I I

1

~ -

-

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 21 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 mesh- 1981-83

8

70

60

50

40 0

r 30E

0 20E-0 0 10 s= u 8 tV 0 6E 0 4

2

__1981 ____ 1982

_1983

shy--- -- shy--- shy J - -

I

I

C1- J

I

-----l---l ~--~r---------------r--

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 22 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1981-83

_1981

~ __ 1982

~1983

25

00I _ __ _ _ C)~ I __ _ I

I V o 20 rt I I

E I AshyI o E 15-o o z u 10 tU o E I o 5

I

1 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

July August 5

----------------------------------------------------------------

Table 1 Unalakleet River Subsistence King Salmon Index 1983

Number of Number of Date Fishermen Chinook Average

08 02 18 05 05 00 02 58 92 62 72 72 42 28 52 60 62 20 47 50 35 25 15

June 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Totals

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 4 4 4

4

3 1 7 2 2 o 1

23 37 25 29 29 17 11 21 24 25

6 14 15 14 H~

6

322

~

39

---------------------- ---------- --------------------------------------

----------------------------------------------------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983

Daily Proportion Cumu1 Prop Date South North Total of Total Cumulative of Total

64 7 23 30 1313131 313 013131 65 44 187 231 00137 261 01308 66 12 162 174 01305 435 01313 67 8 283 291 1313139 726 01322 68 0000 726 13022 69 3 221 224 013137 950 13029 610 26 245 271 131308 1221 13037 611 56 254 310 131310 1531 131347 612 44 736 780 013 24 2311 13071 613 64 1188 1252 01339 3563 01113 614 59 1752 1811 0056 5374 0166 615 97 844 941 01329 6315 0195 616 165 729 894 0028 7209 0223 617 151 i 604 1755 0054 8964 middot 0277 618 i ll 1524 1635 0051 10599 13328 619 175 2000 2175 0067 12774 13395 620 171 21320 2191 0068 14965 0463 621 220 1613 1833 0057 16798 0520 622 199 2065 2264 0070 19062 0590 623 362 21334 2396 0074 21458 13664 624 876 3403 4279 13133 25737 0797 625 1244 2023 3267- 0101 29004 0898 626 738 1601 2339 0073 31343 0971 627 573 3265 3838 0119 35181 1090 628 547 1868 2415 0075 37596 1165 629 528 4028 4556 0141 42152 1306 630 430 430 0013 42582 1319 71 240 240 01307 42822 1326 72 201 975 1176 0036 43998 1362 73 309 8842 9151 0284 53149 1646 74 475 6385 6860 0213 60009 1859 75 565 3342 3907 0121 63916 1980 76 1377 2094 3471 0108 67387 2088 77 1416 3173 4589 0142 71976 2230 78 1472 1420 2892 0090 74868 2320 79 2071 1452 3523 01113 78391 2430 710 3318 2434 5752 0178 84143 2608 711 2673 2866 5539 13172 89682 2780 712 1665 1747 3412 13106 93094 2886 713 21317 1951 3968 13123 97062 3009 714 2991 2664 5655 0175 102717 3184 715 2646 2548 5194 13161 107911 3345 716 2488 2886 5374 0167 113285 3512 717 1585 4063 5648 0175 118933 3687 718 3559 9326 12885 0400 131818 4087 719 2948 2398 5346 13166 137164 4253 720 1640 3330 4970 0154 142134 4407 721 2416 6420 8836 0274 150970 4681 722 3298 3298 0102 154268 4783 723 5007 5007 0155 159275 4938

40

--------------------------------------------------------------------

--------------------------------------------------------------------

-----------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983 (Continued)

Daily Proportion Cum Prop Date South North Total of Total Cumu1at i ve of Total

724 4005 7804 11809 0366 171084 5304 725 2453 3392 5845 0181 176929 5485 726 2166 12094 14260 0442 191189 5927 727 1914 4472 6386 0198 197575 6125 728 1603 3463 5066 0157 202641 6282 729 1251 1914 3165 0098 205806 6380 730 1710 2495 4205 en30 210011 6510 731 2542 1887 4429 0137 214440 6647 81 4479 2271 6750 0209 221190 6856 82 1103 1806 2909 0091 224099 6947 83 1719 942 2661 0083 226760 bull 7030 84 1519 2557 4076 0126 230836 7156 85 1259 1113 2372 0074 233208 7230 86 940 2189 3129 0097 236337 7327 87 1467 4354 5821 0180 242158 7507 88 2318 1584 3902 0121 246060 7628 89 2098 1505 3603 0112 249663 7740 810 2629 1517 4146 bull 0129 253809 7869 811 3753 1091 4844 0150 258653 8019 812 1489 523 2012 0062 260665 8081 813 744 353 1097 0034 261762 8386 814 981 981 bull 0030 262743 8145 815 2324 2324 0072 265067 8217 816 2638 2638 0082 267705 8299 817 2073 731 2804 0087 270509 8115 818 2244 675 2919 0091 273428 8477 819 3240 696 3936 0122 277364 8599 820 2363 503 2866 0089 280230 8688 821 6789 1111 7900 0245 288130 8933 822 6489 563 7052 0219 295182 9152 823 5077 298 5375 0167 300557 9319 824 2616 298 2914 0090 303471 9409 825 3933 412 4345 0135 307816 9544 826 1393 554 1947 0060 309763 9604 827 1203 463 1666 0052 311429 9656 828 1197 542 1739 0054 313168 9710 829 1244 221 1465 0045 314633 9755 830 1011 199 1210 0038 315843 9793 831 718 214 932 0029 316775 9822 91 1324 318 1642 0052 318417 9874 92 1362 307 1669 0052 320086 9926 93 1146 314 1460 0045 321546 9971 94 652 296 948 bull 0029 322494 10000

148465 174029 322494 10000

41

----------------------------------------------------------------------

-------------------------------------------------------------------- --

------

TABLE 3A Unalakleet River Species Apportionment by Test Period King Salmon 1983

3-Day App Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 76 0272 76 0272

69-612N 28 0100 104 0372

612N-615 461 1652 565 2024

616-619N 419 1502 984 3526

619N-622 170 0609 1154 4135

623-626N 722 2588 1876 6723

626N-629 264 0946 2140 7669

630-73N 103 0639 2243 8038

73N-76 188 0674 2431 8712

77-710N 0 0000 2431 8712

710N-713 0 0000 2431 8712

714-717N 267 0957 2698 9969

717N-720 0 0000 2698 9669

721-724N 92 0331 2790 1 0000

724N-727 0 0000 2790 10000

728-731N 0 0000 2790 1 0000

731N-83 0 0000 2790 1 0000

2790 10000

42

Dates

714-717N

717N-720

721-724N

724N-727

728-731N

731N-83

84-87N

87N-810

811-814N

814N-817

818-821N

821N-824

825-828N

828N-831

91-94

TABLE 3B Unalakleet River Species Apportionment by Test Period Coho Salmon

3-Day Count

583

338

436

550

2650

1174

793

1435

5074

1280

435

2265

171H3

1983

Proportion of Season Total

0000

0000

0000

0343

0199

0256

0323

1558

0690

0466

0843

2983

0752

0256

1331

Cumulative Count

583

921

1357

1907

4557

5731

6524

7959

13033

14313

14748

17013

Cumulative Proportion

0000

0000

0000

0343

0542

0798

1121

2679

3369

3835

4678

7661

8413

8669

10000

43

------------------------------------------------------------------

------------------------------------------------------------------

----- ------

TABLE 3C Unalakleet River Species Apportionment by Test Period Pink Salmon 1983

3-Day P roport ion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 0 0000

6l2N-615 0 0000

616-6l9N 97 0012

6l9N-622 332 0036

623-626N 1245 0136

626N-629 6624 0721

630-73N 3699 0403

73N-76 10762 1171

77-7l0N 7704 0838

710N-7l3 8529 0928

714-717N 9771 1063

717N-720 13845 1507

721-724N 11361 1236

724N-727 6544 0712

728-731N 3545 0386

731N-83 1628 0177

84-87N 1224 0133

87N-810 1777 0193

811-814N 802 0087

814N-817 561 0061

818-821N 533 0058

821N-824 8313 13091

825-828N 468 0051

828N-831 0 0000

91-94 0 0000

91881 10000

0 0000

0 0000

0 0000

97 0012

429 0048

1674 0184

8298 0905

11997 1308

22759 2479

30463 3317

38992 4245

48763 5308

62608 6815

73969 8051

80513 8763

84058 9149

85686 9326

86910 9459

88687 9652

89489 9739

90050 9800

90583 9858

91413 9949

91881 10000

91881 10000

91881 1 0000 44

------------------------------------------------------------------

------------ ------------------------------------------------------

----- ------

TABLE 3D Unalakleet River Species Apportionment by Test Period Chum Salmon 1983

3-Day Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 100 0017

612N-615 268 0046

616-619N 838 0144

619N-622 1180 0202

623-626N 2744 0471

626N-629 1569 0270

630-73N 796 0137

73N-76 2972 0510

77-710N 2068 0355

710N-713 2622 0450

714-717N 4133 0710

717N-720 5596 0960

721-724N 4978 0854

724N-727 8974 1540

728-731N 2241 0385

731N-83 2079 ~0357

84-87N 3009 0516

87N-810 2432 0417

811-814N 937 0161

814N-817 454 0078

818-821N 2584 0443

821N-824 2739 0470

825-828N 1783 0306

828N-831 765 0131

91-94 412 0070

58273 10000 45

0 0000

100 0017

368 0063

1206 0207

2386 0409

5130 0880

6699 1150

7495 1287 f

10467 1797

12535 2152

15157 2602

19290 3312

24886 4272

29864 5216

38838 6666

41079 7051

43158 7408

46167 7924

48559 8341

49536 8502

49990 8580

52574 9023

55313 9493

57096 9799

57861 9930

58273 1 0000

-------------------------------------------------------------

------------------------- ------------------------------------

TABLE 4 Unalakleet River Test Net Proportions by Sample Perio-d 1983 ( Selective CPUE)

Dates Chinook Coho Pink Chum Misc

64-68 105 00 00 895

69-612N 24 00 83 893

612N-615 1C~ 5 00 61 834

616-619N 78 18 156 748

619N-622 23 45 160 772

623-626N 65 112 247 576

626N-629 22 553 131 294

630-73N 16 576 124 284

73N-76 10 572 158 260

77-710N 00 555 149 296

710N-713 00 540 166 294

714-717N 14 00 513 217 256

717N-720 00 00 532 215 253

721-724N 04 00 493 216 287

724N-727 00 18 202 277 503

728-731N 00 23 242 153 582

731N-83 00 30 112 143 715

84-87N 44 98 241 617

87N-810 182 122 167 529

811-814N 139 95 111 655

814N-B17 96 68 55 7B1

B18-B21N 105 39 1B9 667

821N-824 263 43 142 552

825-B28N 145 53 202 600

828N-831 97 00 171 732

91-94 396 00 72 532

46

--------

--------

TABLE 4 Una1ak1et River Test Net Proportions 1983 ( Selective CPUE) (Continued)

Comparative Apportionment

Species Apportionment

Chinook 2790 Coho 17013 Pink 91881 Churn 58273

------shySubtotal 169957

Misc Species 152537 ------shy

Total 322494

Substrate Comparison -------------------shy

Bank Counts -----shy

South 148465 North 174029

------shy

Total 322494

Percent of Total Counts

09 53

285 181

5408

472

1000

Percent

460 540

1000

47

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TABLE 5A Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

May 27 28

21 5 482

13 13

1313

1313 21 5 697

13 13

1313

1313 30 240 0 013 937 0 00 31 246 2 41 1183 2 08

June 1 237 0 00 1420 2 07 2 3

256 585

13 13

013 bull 13 13

1676 2 261

2 2

6bull 13 4

5 6 8

160 120 middot 125

13 1

13 42 130

2 421 2541 2666

~ 2 3 3

bull 13 4 136 136

9 122 0 130 2788 3 05 11 117 00 2905 3 05 12 126 13 00 3031 3 05 13 117 1 43 3148 4 06 15 118 0 013 3266 4 136 16 116 1 43 3382 5 138 18 240 13 130 3622 5 07 19 121 0 00 3743 5 07 20 116 0 00 3859 5 136 22 118 1 42 3977 6 138 23 119 1 42 4196 7 08 25 240 0 013 4336 7 138 26 119 13 1313 4455 7 138 27 119 13 1313 4574 7 138 29 1213 13 130 4694 7 137 313 1213 13 00 4814 7 07

July 2 238 0 1313 51352 7 07 3 118 13 013 51713 7 07 4 118 1 42 5288 8 138 6 122 0 00 5410 8 07 7 116 13 00 5526 8 07

10 126 0 1313 5652 8 07 11 119 0 013 5771 8 07 13 116 13 130 5887 8 07 14 119 2 84 6006 10 07 17 122 0 00 6128 10 07 18 112 0 1313 6240 10 136 20 119 13 00 6359 10 06 21 112 0 013 6471 10 06

6471 10

48

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TABLE 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983

Cum Cum Date Hours Catch CPUE Hours Catch CPUE

July 24 26

115 120 0 00

115 235

0 0

00

00 27 117 4 00 352 0 00 29 117 0 137 469 4 34 31 116 3 103 585 7 48

August 2 122 0 00 706 7 40 3 122 2 66 828 9 43 5 118 1 34 946 10 42 7 128 14 437 1074 24 89 9 257 14 218 1331 38 114

10 125 21 672 1456 59 162 12 13 middot- 0 00 1469 x 59 161 14 10 7 12 449 1576 71 180 16 122 2 66 1698 73 172 17 123 6 196 1821 79 174 19 118 1 34 1939 80 165 21 112 6 214 2051 86 168 23 120 3 100 217 1 89 164 24 115 2 70 2286 91 159 26 115 5 174 2401 96 160 28 119 0 00 2520 96 152 30 119 4 1 34 2639 100 152 31 117 1 34 2756 101 147

Sept 2 123 5 33 2879 106 147 4 479 15 125 3358 121 144 6 238 11 185 3596 132 147 7 237 5 84 3833 137 143 8 238 6 1 01 4071 143 141 9 242 10 1 65 4313 153 142

10 242 3 50 4555 156 137 11 242 2 33 4797 158 132 12 241 8 133 5038 166 132 14 227 14 247 5265 180 137 15 242 9 149 5507 189 137 16 210 3 57 5717 192 134 17 239 2 33 5956 194 130 18 230 2 35 6186 196 127 20 489 4 33 6675 200 120 21 24 3 50 6915 203 117 22 242 0 00 7157 203 113 23 234 1 17 7391 204 110

----shy

7391 204

Mesh size = 5 14 from 724 to 810

49

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TABLE 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE ------~-----------------------------------------------------------June 16 122 1 33 122 1 33

17 118 0 bull 0 0 240 1 17 20 120 2 67 360 3 33 21 118 0 00 478 3 25 23 119 2 67 597 5 34 24 119 3 102 716 8 45 27 116 19 655 832 27 130 28 120 22 733 952 49 206 30 120 40 1333 1072 89 332

July 1 115 36 1252 1187 125 421 4 122 30 983 1309 155 474 5 114 47 1649 1423 202 568 7 118 30 1016 1541 232 602 8 120 shy 24 800 1661 -$ 256 616

11 122 42 1377 1783 298 669 12 120 29 967 1903 327 687 14 116 37 1276 2019 364 721 15 118 40 1356 2137 404 756 18 121 60 1976 2258 464 822 19 119 30 740 2377 494 831 21 125 61 1952 2502 555 887 22 118 25 847 2627 580 883 25 122 16 525 2749 596 867 26 116 15 517 2865 611 853 28 122 28 918 2987 639 856 29 117 11 376 3104 650 838

August 1 120 7 233 3224 657 815 2 119 9 303 3345 666 796 4 120 3 100 3465 669 772 5 118 5 170 3583 674 752 8 114 7 245 3697 681 734

11 123 7 337 3 82 0 688 720 15 118 2 68 3938 690 701 16 113 5 177 4051 695 686 18 98 3 122 4149 698 673 19 119 1 34 4268 699 655 22 112 0 00 4380 699 638 23 115 0 00 4495 699 622 25 120 2 66 4615 701 606 26 112 1 36 4727 702 594 29 116 0 00 4843 702 580 30 11 5 0 00 4958 702 566

Sept 1 115 0 00 5079 702 553 2 112 0 00 5191 702 541

----shy5079 702

50

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TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

June 5 73 0 00 73 0 00 7 126 0 00 199 0 00 8 127 0 00 326 0 bull 0 0

10 11 4 3 105 440 3 27 12 113 2 71 553 5 36 14 119 1 34 672 6 36 15 116 4 138 788 10 51 17 116 3 103 904 13 56 19 118 6 203 1022 19 74 21 118 0 00 1140 19 67 22 117 10 342 1257 29 92 24 116 3 103 1373 32 93 26 119 11 370 1492 43 115 28 11 8 6 203 1610 $ 49 122 29 115 13 452 1725 62 144

July 1 119 8 269 1844 70 152 3 119 17 571 1963 87 177 5 119 13 437 2082 100 192 6 12 0 17 567 2202 117 213 8 121 7 231 2323 124 214

10 11 4 18 632 2437 142 233 12 115 12 417 2552 154 241 13 116 37 1276 2668 191 286 15 117 16 547 2785 207 297 17 11 8 31 1051 290 3 238 328 19 118 18 610 3021 256 339 20 115 29 1009 3136 285 364 22 122 17 557 3258 302 371 24 115 24 835 3373 326 387 26 120 19 633 3493 345 395 27 117 11 376 3610 356 394 29 117 14 479 3727 370 397 31 116 18 621 3843 388 404

August 2 121 9 298 3964 397 401 3 122 17 557 4086 414 405 5 11 8 8 271 4204 422 402 7 128 19 594 4332 441 407 9 257 10 156 4589 451 393

10 125 14 448 4714 464 394 12 13 1 308 4727 465 393 14 107 5 187 4834 470 389 16 122 4 131 4956 474 383 17 123 15 488 5079 489 385 19 118 8 271 5197 497 383 21 112 3 107 5309 500 378 23 120 6 200 5429 506 373 24 115 7 243 5544 513 370

51

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TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 (Continued)

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

August 26 115 5 174 5657 518 366 28 119 1 34 577 6 519 359 30 119 4 134 5895 523 355 31 117 0 00 6012 523 3 48

Sept 2 123 3 98 613 5 526 343 4 479 2 17 6614 528 319 6 238 1 17 6852 529 309 7 237 0 00 7089 529 298 8 9

238 242

1 2

17

33 7327 7569

clt

530 532

289 281

10 242 3 50 7811 535 274 11 242 0 00 8053 535 266 12 241 2 33 8294 537 259 14 227 3 53 8521 540 253 15 242 0 00 8763 540 246 16 210 1 19 8973 541 241 17 239 2 33 9212 543 236 18 230 0 00 9442 543 230 20 489 0 00 9931 543 219 21 240 2 33 10171 545 214 22 242 0 0 10413 545 209 23 234 0 00 10647 545 205

----shy

10647 545

52

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------

TABLE 6A Unalakleet River Sonar Site Drift Sets5 1 4n Me sh 19 83 bull

Date Time Result

July 19 1405-1413 1 burbot July 23 1040-1055 1 pink caracass July 27 1520-1530 1 coho August 3 1444-1501 4 coho August 22 1930-1937 0 August 23 937-943 1 coho 1 pink carcass August 26 1117-1127 1 coho 3 churn August 31 1018-1034 3 churn

TABLE 6B Unalakleet River Sonar Site Beach Seines 1983

Date Time Distance Result

July 20 1445 120 meters 4 pink 1 churn 13 Dolly Varden 1 whitefish

July 25 1500 120 meters 6 pink 1 churn 1 Dolly Varden 4 whitefish 1 grayling

July 28 1700 120 meters 4 coho 2 pink 2 churn 1 Dolly Varden

August 1 2010 300 meters 4 pink 3 churn 8 Dolly Varden

August 4 1015 130 meters 5 coho 3 pink 3 churn 65 Dolly Varden 3 whitefish 3 grayling

August 24 1110 130 meters 18 coho 2 Dolly Varden 2 grayling

August 29 1715 120 meters 11 coho 1 pink 69 churn 1 Dolly Varden 2 grayling

Seine done at mile 12 Unalakleet River

53

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TABLE 7 AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER CATCH SAMPLE SPORT CATCH AND SPAWNING SURVEYS 1983

II

COMBINED 3-2 4-2 4-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 31 646 6702 5 104 5010 8 167 5688 1 21 5900

Female 17 354 8540 o o 1 21 5450 o o

Total 48 1000 7353 5 104 5010 9 188 5661 1 21 5900

~ 11)

5-2 6-2 7-2 7-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 11 229 7382 6 125 8350 0 0 0 0

Female 2 42 7925 12 250 8742 1 21 10650 1 21 8350

Total 13 271 7465 18 375 8611 1 21 10650 1 21 8350

TABLE 8A AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER TEST NET SAMPLE 1983

-----~-------------------------------------------------------------------------------------------------------

gt

COMBINED 4-2 5-2 5-3 6-2 7-2 NO LENGIH NO LENGIH NO LENGIH NO LENGTH NO LENGTH NO LENGTr

8 14 n

Male 3 333 8107 0 1 111 5800 o 0 2 222 9260 0 0 Female 6 667 8295 0 0 1 111 7600 o o 4 444 8310 1 111 8930 Total 9 10 e 0 8232 0 o 2 222 6700 o o 6 667 8627 1 111 8930

If) If)

5 14 Male 19 1000 6298 12 632 5392 4 211 6990 0 o 3 158 8997 0 0 Female o 0 o o o o o o 0 0 0 0 Total 19 1000 6298 12 632 5392 4 211 6990 o o 3 158 8997 0 0

4 n or Smaller Male 6 667 5930 1 111 4660 2 222 6325 3 333 6090 0 o 0 o Female 3 333 8970 o o o o o o 3 333 8970 0 o Total 9 1000 6943 1 111 466 2 222 6325 3 33 3 6090 3 33 3 8970 0 0

TOTAL Hale 28 757 6413 13 351 5336 7 189 6630 3 8 1 6090 5 13 5 9102 o 0 Female 9 243 852 o o 1 27 7600 o o 7 189 8593 1 2 7 8930 Total 37 1000 6925 13 351 5336 8 216 6751 3 8 1 6090 12 324 88 e 5 1 2 7 8930

---------------------------------------------------------------------------------------------------------

---------------------------------------------------------------------------------------------------------

TABLE 8B AGE SEX AND SIZE COMPOSITION OF NORTON SOUND COHO SALMON UNALAKLEET RIVER TEST NET SAMPLE 5 14 AND 5 78 GEAR 1983

COMBINED 3-2 4-3 4-4 5-4 NO LENGIH NO LENGIH NO LENGTH NO LENGIH NO LENGTH

Male 9 900 5489 0 0 9 900 5489 0 0 Female 1 10 bull 0 552 QJ QJ 0 1 10QJ 5520 0 0 Total 10 1000 5492 0 0 10 1000 5492 0 0 725-731

bull LI)Male 15 938 5645 15 938 5645 Female 1 62 575 QJ 1 62 575 QJ Total 16 lQJ0QJ 5651 16 100QJ 5651 81-87

Male 24 545 5668 23 523 5768 1 23 3350 Female 20 455 5631 20 455 5631 0 0 Total 441QJ0QJ 5651 43 977 57 QJ 4 1 23 335 QJ 88-814

Male 7 500 5797 7 500 5797 QJ 0 Female 7 500 5596 6 429 5587 1 71 5650 Total 14 1000 5696 13 929 1 71 5650570 815-821

Male 5 455 5492 5 455 5492 Female 6 545 5552 6 545 5552 Total 11 lQJ00 5525 11 100QJ 5525 822-828

INTRODUCTION

The Unalakleet River empties into Norton Sound approximately 130 miles southeast of Nome is approximately 130 miles in length and drains an area of 1087 square miles The Unalakleet River flows from the Nulato hills westward to the town of Unalakleet on the Bering Sea coast Five major tributaries comprise the river all of which support spawning salmon

The town of Unalakleet is situated at the mouth of the Unalakleet River the most important salmon producing river in Norton ~ound Historically the people of the area have depended on the salmon runs for their liveli~ood first as food for themselves and their dogs and more recently as the basis of their cash economy

Attempts to assess salmon escapement to the system have been made annually by aerial stream surveys counting towers on the North River in 1973 and 1974 and on the Chirosky River during 1975 and 1976 Weather and water clarity have often limited these enumeration efforts but escapement estimates have ranged as high as 1477 king (1977) 28600 churn (1978) 491706 pink (1978) and 1184 coho salmon (1980) not including major tributaries

A salmon subsistence survey is conducted by the Commercial Fisheries Division each year in Unalakleet Results have indicated that sUbsistence catch averages have been increasing in recent years The recent five-year average 1978 to 1982 subsistence salmon catches were 922 king 4694 coho 13019 pink and 3840 chum salmon Coho and pink salmon catches have shown the greatest increases due largely to increased returns of these species

Commercial catches in the Unalakleet subdistrict have also increased due to increased effort better technology and the increased returns of coho and pink salmon The recent five-year average (1978-1982) commercial catch for the Unalakleet subdistrict is 5629 king 28427 coho 131016 pink and 43086 chum salmon In 1982 the average commercial fisherman received approximately $6000 from the sale of salmon

Because of the importance of the commercial and subsistence

-1shy

fisheries and the problems of estimating escapement in this subdistrict side-scanning sonar was installed in 1982 in the Unalakleet River in hopes of gaining a more accurate estimate of escapement and at the very least a more consistent index of salmon migration

A test fishing program was in operation in 1981 in the lower four miles of the Unalakleet River Indices from this study were instrumental in helping the area biologist set some commercial fishing periods In 1982 sonar counts proved useful as an index of the coho salmon escapement and were used by the area biologist in extending the coho fishery

A number of problems affecting sonar counts became more apparent during the 1983 season These problems brought on by low river velocity (13 to 17 fps) and tidal f1uctuationi included milling salmon and allocating counts to five different fish classifications

With increased harvest effort on the chinook population a limited sport fish survey was begun

This report presents the results of the Unalakleet sonar projects second year of operation and comparison of test fishing indices from 1981 to 1983

METHODS

Project Deployment

Supplies and equipment were on-site and camp construction was completed on May 28 Both north and south bank counters were in operation on June 4 Sonar counter operation ceased on September 4 91 days after counting was initiated By September 6 the sonar camp had been dismantled and the equipment stored for the winter

Test fishing began on May 27 and ended on September 23

Sonar

The Electrodynamics Division of the Bendix Corporation developed a side- scanning hydroacoustic counter during the 1970s capable of detecting and counting salmon migrating along the banks of tributary streams The side-scan sonar counter is designed to transmit a sonic beam along a 60 foot aluminum tube or substrate

-2shy

Echoes from fish passing through the beam are reflected to the transducer The systems electronics interpret the strength and number of the echoes and tally fish counts

Two Bendix side-scan counters 1981 models were used on the Unalakleet River The respective 60-foot tubular aluminum substrates were deployed from opposite banks of the Unalakleet River Both substrates were positioned so there was at least two feet of water over the sonar beam that is projected immediately above the substrate that is two feet over the transducer housing and seven feet over the target end of the substrate It was found that three feet of water was needed as a buffer to eliminate debris counts due to wind ripples flotsam and sudden water level changes A small weir _ was placed to prevent fish passage inshore from the transducer on both sides of the riverThe substrates were not located directly opposite each other The north bank substrate was located 400 feet upstream from the south bank substrate which was placed in a nearly ideal river bottom profile Unfortunately mud shallows were opposite the south bank During the season fish behavior necessitated movement of the north bank substrate to a site 300 feet downstream of the south bank substrate

The river width at this site is approximately 200 feet The deepest channel is located about 80 feet from shore at the north bank substrate and about 100 feet from shore at the south bank substrate Although one-third of the river is isonified by the sonar beams if fish follow a depth contour then more than two-thirds of the possible fish paths would be covered by the sonar counters

The substrates were moved several times during the summer because of water level changes or for cleaning The substrates were guyed to two dead men each in the form of buried logs held in place with fence posts Stainless steel aircraft cable fastened to each end of the substrate was attached to respective dead men on shore

The cables were roughly parallel and adjusted to hold the substrate perpendicular to shore The inshore cable was long enough to allow the substrate to remain perpendicular to shore even though it might be moved 15 feet from shore The easiest method of movement of the substrate was to use the hydrodynamic shape of the substrate to raise itself and push against the substrate with a handy man jack The inshore footing could then be relocated with a minimum of

-3shy

effort

Although the current at the sonar site was insufficient to raise the tube to the surface it did help in pulling it up to a point where it could be cleaned

Calibration (a comparison of oscilloscope fish counts and sonar fish counts) was scheduled four times daily on both banks The magnitude of the fish milling problem compounded by slow fish passage made this schedule impractical much of the summer Calibration was attempted when usable results seemed impossible it was not attempted at extreme rates of fish passage Calibration was done by comparing echoes on a Tektronix 221 oscilloscope with counts of the sonar counter Salmon passing through the sonar beam produce a distinctive oscilloscope trace A count of 100 fish within 30 minutes the maximum calibration period was required before resetting the sonar fish velocity controls

agreement = Sonar computer count Oscilloscope count

The agreement was then used to adjust the daily counts Agreement of less than 1 indicates the sonar was undercounting and greater than 1 indicates overcounting

When the count agreement varied more than 15 then the following equation was used to derive a new fish velocity

agreement x existing velocity = new velocity

Milling fish became a problem on June 28 on the north bank when slow migrating and milling pink salmon oscars started riding the substrate turbulence wave Based on counting tower observations it was determined that all sixteen sectors were affected On July 1 and 2 the substrate was moved approximately 700 feet downstream to the base of a small cliff with somewhat faster water velocity Pink salmon began riding the substrate at the new site within hours Oscars were not a problem on the south bank during this time therefore in order to estimate the passage on the north bank the average hourly passage rate (percent per hour of the daily total) of the preceding three day period of the south bank was used to calculate daily totals for the

-4shy

north bank based upon hours which were not apparently effected by oscars

Total of Preceding 3-day valid hourly sum of daily

Daily total--North = counts--north x counts--South Total of corresponding hourly counts for preceding 3 days--south

After two weeks of attempting to deal with milling fish the following policy was decided on The sonar beam was raised slightly so that a strong target was seen in the four degree mode but a decrease in target strength was barely apparent in the two degree mode The offshore end of the substrate was moved middotfive feet downstream from the perpendicular placement used earlier The beam was extended as far as possible beyond the target These measures seemed to eliminate fish avoidance of the substrate as a problem

Other milling problems were not satisfactorily resolved Salmon moving downstream were not counted by the sonar but those same fish moving upstream could be counted by the sonar It was decided to invalidate an hourly count if milling fish were observed from a tower or oscilloscope or if sonar criteria were not met Disqualifying sonar criteria were hourly debris checks or a large fish count over 15 The large fish count indicated fish moving over the substrate in a tight school which was characteristic of milling behavior King salmon in the Unalakleet did not seem to reflect a long enough signal to register as large fish however two or three small salmon could register if they were close to the same distance from the transducer and spaced in an overlapping manner

Records of changes in counter settings river conditions and other unusual occurrences were also used in adjusting daily sonar counts

The large fish counter on the 1981 model sonar counter was ignored except as an index of milling fish

Test Fishing

The same test fishing site as in 1981 and 1982 was used during the 1983 season

-5shy

The ten fathom 8 14 gillnet was set from May 27 to May 31 A twenty fathom 8 14 gillnet was set on June 1 and fished until June 4 From June 5 to September 4 the period of sonar operation a rotating schedule of twelve hour time blocks over a period of three days was used The nets used included

1 20 fm 8 14 mesh 2 25 fm 5 14 mesh (June 5-August l025 fm 5 78

mesh (August II-September 4) 3 25 fm 4 mesh 4 15 fm variable mesh

The 25 fm 5 78 mesh gillnet was fished from September 5 to September 25 The 8 14 mesh net and the v~riable mesh net were fished concurrently The three-day rotation schedule allowed each net to be fished during one 12-hour high tidedaylight period and one 12-hour low tidenight period Nets were rotated at 0900 and 2HJ0 daily The 8 14 mesh net was removed from the rotation on July 21 because the chinook migration was completed

The CPUE (catch100 fm-hr) was calculated for the two most efficient nets for each species to be used in apportioning sonar counts These CPUEs for chinook coho pink chum and other species presumably detectable by sonar were totaled and the species CPUE divided by the total CPUE for all species to give the percent of the periods sonar counts to each specie The seventh day of the week was apportioned by using the previous 3-day proportions for one half of the counts and the following 3-day proportions for the second half of the counts

Test net data (Tables 5A 5B 5C and 5D) was calculated for the single most effective net for each species for separate analys is

Weights lengths and scale samples were taken from all chinook coho and chum captured Pink salmon were counted only Tissue samples were taken from test net chinook salmon for electrophoretic studies coordinated by the Stock Separation Section of the Commercial Fisheries Division

Counting Towers

Counting towers were erected immediately adjacent to the

-6shy

onshore end of each substrate (Figure 2) As in 1982 the use of visual tower counts for comparison with sonar counts could not be relied upon due to river width surface disturbances etc however several short comparisons were possible The towers proved invaluable in determining the presence of moribund fish debris passage presence of oscars fish swimming behavior etc The 1983 low river level and generally less turbidity as compared to 1982 allowed more rapid and concrete identification of the milling fish Without use of the tower the severity of the milling fish problem may not have been discovered

Drift SetsBeach Seines

Drift sets and beach seines were done for comparison with test net species apportionment and to determine fish passage beyond the sonar counting range Drjft sets were accomplished by drifting a 25 fm 5 14 gillnet perpendicular to the shore The 25 fm net allowed the major portion of the river to be fished thus only one drift was done per set as opposed to 1982 when a drift set was done near each bank Set durations ranged from 5 to 17 minutes dependent upon boat traffic wind conditions etc Drift sets were done on July 19 23 and 27 and August 3 22 23 26 and 31

Beach seines were accomplished by using a 25 fm 3 mesh seine immediately downstream of the south bank substrate Shoreline conditions prevented se1n1ng near either north bank site Beach seines on the south bank were done on July 20 25 and 28 and August 1 and 29 Beach Unalakleet River were done on August 4 and levels prevented seining from August 4 to

seines 24

24

at High

mile 12 water

Riyer Surveys

Two river surveys were attempted during 1983 A jet boat was taken up the North River on July 29 This proved to be early for carcass sampling but weather and equipment problems prevented a later survey

A float trip of the Old Woman and upper Main River was also made A plane landing mishap greatly reduced the scope of this trip Weather prevented any follow up work

Subsistence Surveys

A daily survey of three to five sUbsistence fishermen is

-7shy

made from the time the first king salman is caught early in June through the remainder of that month These people must be trustworthy conscientious about checking their nets and fairly successful The average daily catch is compared to the previous day to develope the annual trend and the total catches and the annual trend is compared to past years Commercial catch and effort data and the up-river test net data are used in conjuction with the subsistence catch to anticipate strategies

future catches and management

During late September made of Unalakleet

an The

extensive door to door survey is Annual Management Report covers

subsistence surveys in detail

RESULTS

~istence Survey

The Unalakleet subsistence survey made in late September interviewed 74 subsistence fishermen 68 of whom fished in the river and 17 who fished in the ocean The catch was predominantly from the river with 1480 king 6311 coho 13458 pink and 4124 chum salmon reported The ocean subsistence catch was 388 king 577 coho 350 pink and 277 chum salmon

The mean chinook salmon catch per fisherman peaked on June 16 This compares with July 3 in 1982 and June 19-22 in 1981 All subsistence fishermen surveyed in 1983 were fishing within one mile of the river mouth

Chinook subsistence survey results are presented in Table 1 and Figure 3 As in 1981 and 1982 the variances in nets fishing times and net locations call for calculation of mean catch per fisherman as opposed to catch per unit effort

Sonar

During the period from June 4 to September 4 the final sonar count was 322494 148465 (460) counts were tallied on the south bank and 174029 (540) counts were tallied on the north bank

The daily sonar counts (Table 2) were adjusted by the test net proportions (Table 4) to give the following escapement estimates for the period June to September 4

-8shy

Species Total Count LQf Total

Chinook 2790 09 Coho 17013 53 Pink 91881 285 Chum 58273 181 Other 152537 AL2

322494 1000

Tables 3A 3B 3C 3D and 4D present this data by 3-day sample period Based on discussions with Al Menin and Dave Gaudet about the ability of sonar counters to discriminate between various target shapes and sizes any fish two and one half pounds or laterally compressed fish ~f one pound or larger could be counted by a sonar calibrated for pink salmon Fish other than salmon considered countable by the sonar counter included arctic char grayling burbot and broad humpback and Alaska whitefish

Peak adjusted apportioned sonar counts were on June 23 for chinook August 21 for coho July 18 for pink and July 25 for chum salmon (Tables 3A 3B 3C and 3D Figures 4A 4B 4C and 4D)

Representative passage rates on the south bank by sector and by hour for July 3-5 and August 21-23 are presented in Figures 6 and 7 These periods were chosen because of minimal adjustments to raw counts north bank counts are not presented due to lack of relatively clean data for those periods

Test Fishing

A total of 19 chinook (74 male - 26 female) 294 coho (61 male 39 female) 1156 pink (52 male - 48 female) and 915 chum (54 male - 46 female) was captured from May 27 to September 23 The fish were sampled and delivered to Hartha Nanouk a local subsistence fisherman as per agreement for the use of her traditional set-net site

Based on the single most effective test net CPUE the chinook migration did not peak as such but rather showed most consistent catches on June 22 and 23 coho migration peaked from August 10-14 pinks from July 18-22 and chum on July 13

-9shy

Comparisons of daily CPUE and cumulative CPUE for all salmon species are presented in Tables SA 58 5C and 5D and Figures 8 thru 15 Of interest although not as useful for annual comparison due to different test net methods net mesh sizes fishing time etc the actual fish caught from 1981 to 1983 are

~ 1982 un 41 chinook 39 chinook 39 chinook

107 coho 310 coho 294 coho 1463 pink 5114 pink 1156 pink

722 chum 375 chum 915 chum

f

Age Sex and Size Composition of Test Net Catches

An age analysis of scales collected during the project indicated the following age compositions king salmon all gear sizes (4-2131 5-2 22~ 5-3816-23217-2 3) coho salmon 5 14 and 5 78 gear (3-2 051 4-3 981 4-4 051 5-4 l) chum salmon 5 14 and 5 78 gear (3-1 21 4-1 611 5-1 37) Tables 7 thru 9D show the age composition of the various species broken down by date and the mesh sizes used during the project

Counting Towers

As cited visual tower counts could not be made on the Unalakleet River due to river width surface disturbances turbidity etc However visual observations proved invaluable in identifying spawning behavior etc and resulted in the downstream relocation of the north bank substrate and development of the method used to adjust north bank sonar counts

Drift SetsBeach Seines

Tables 6A and 68 present the results of drift sets and beach seines respectively Drift set results indicate that the portion of the river not isonified was not used by migrating salmon ie the species most countable coho pink and chum salmon would seem to follow the banks and were counted by the side-scan sonar

Beach seines proved useful in verifying the high presence of

-10shy

species other than salmon the relative abundance of coho salmon in August and the presence of spawning churn salmon in the south bank substrate area

Riyer SurveysAerial SurVeys

On July 29th 32 miles of the North River were surveyed by a two-person crew for the purpose of counting live chinook and sampling chinook carcasses A total of 166 live chinook were counted and 3 chinook carcasses were sampled with approximately half of the chinook counted between mile 25 and mile 32

Originally the Old Woman River survey was to be a six-day trip Due to the damage the plane suffered dropping the first crew member off the second member and support gear was not av~ilable for the survey as planned~ The survey of the Old Woman River August 6-8 counted 60 king salmon but only four samples were collected Weather prevented the survey of the main river

King Salmon Spo rt Fish Survey

A sport fishing lodge on the Unalakleet River is responsible for the majority of the sport fishing effort Periodic surveying of lodge personnel indicates that a fair quantity of king salmon are harvested by sport fishing A quantitative survey was not done however due to limited time available A total of 43 chinook was sampled from sport fishing catches

DISCUSSION

River levels were lower than normal during the spring of 1983 due to the lack of snow accumulation the previous winter The Unalakleet River cleared early and became quite low during late June and early July The low water allowed the counting towers at the sonar site to be used during calm survey days which wasnt possible during 1982

Tower observations made as early as June 28 showed serious milling problems at the north bank sonar site The sonar was moved to a new site on July 2 Milling fish were still a considerable problem at the new site but about half the hourly count were considered acceptable during mid-July Milling salmon were a problem through most of the field season Milling salmon of all four species were observed

-11shy

during the latter half of each respective migration Pink salmon presented the worst problem and churn the least Unfortunately milling pinks invalidated the churn count since the two runs overlap Coho salmon exhibited some milling but an accurate evaluation of this problem was hampered by turbid water Milling coho became a problem after August 20

The milling observed from the towers was not apparent to the observer at the oscilloscope because of the overwhelming number of spikes present at that stage of the salmon migration During 1982 when tower observations were not possible the oscilloscope appeared to have an extraordinary number of spikes The large pink salmon count recorded in 1982 may have been an artifact of milling behavior that was unobservable then Commercial catch and test net catch statistics indicate a large pink salmon run f However it is likely fish milling over the substrate exaggerated the sonar count although without tower observations it can not be proven

Another problem observed during the 1983 field season was avoidance of the substrate by all fish species This problem was at its worst when water was low and clear Angling the substrate slightly downstream as it was after July 15 helped considerably By extending the sonar beam periodically it was determined that as visibility decreased so did avoidance

Species apportionment of the sonar count was done using test net catches Some of the problems encountered with the sampling scheme should be pointed out Test nets were assumed to sample the same portion of the river as the sonar Since three net lengths were used this seemed suspect Different species migrate at different depths The non-salmon species tend to migrate in shallow water near shore and generally the larger species migrate in deeper water nearer mid-stream Since only a IS-fathom net of the most efficient type for non-salmon species was fished in the preferred habitat for these fish it is likely that the calculated efficiency was too high The other test nets were longer and also sampled some preferred areas for the targeted species

The opposite case is true for king salmon The 8 14 net is 20 fathoms longS fathoms shorter than the other nets used on this project This net does not cover all of the area preferred by king salmon This means king salmon

-12shy

escapement is probably underestimated but the 20 fathom net samples an area further out than the sonar counter even with its beam extended So the number of king salmon counted by the sonar is over estimated King salmon make up such a small percentage of the total salmon run that counting errors are more significant than this apportionment error

Very few churn and pink salmon were caught in the offshore end of the nets It is assumed these long nets had very little effect on the sonar count species apportionment

CONCLUSION

The feasibility of counting salmon in the Unalakleet River using side-scanning sonar is unlikely due to milling fish and the inal1ility to accurately apportion the sonar count to the various fish species It is possible that a partial escapement count could be made further up river above one or more of the major tributaries to the system The new north bank sonar site that showed some improvement over the former site had two differences that seemed to affect salmon migration The current was faster over the substrate at the second site and the river gravels were less ideal spawning habitat The new site was located below a rock bluff on the outside of a river bend

There are two similar sites up river about ten miles where the current is faster and the bottom is even less conducive to spawning During the 1984 field season a comparison of the smoother running south bank site and these up-river sites could be made The best time to do this would be during August when only coho salmon are migrating The counter should be operating by August 15 prior to milling activity and maintained for a week to evaluate if milling salmon became apparent later after the migration peaked The south bank site could be used as a control for comparison to 1983

-13shy

I I

5 1 2

Miles No tt h _

shy

R Iv er

Figure 1 Unalakleet Escapement Project

lt

Son sr

Fig u r e 2 S 0 0 a r Sit eSc hem a tic

ITower

Original Ninth Bank Sonar

Drift sets 5 minutes

Lf)

So t h Ban k Son a

lTower

o Work Tent

B Living Quarters

Figure 3Unalakleet Subsistence Survey 1983

Kin g- S a I m 0 n

1bull

10

9

c 8aI

-lE 11 t a til 7 ~ II 6 ~ U

5 til

0

c 4 til til

E 3 I

1 V

~ 2

1

27 1 5 10 15 20 25 30

~ June

Figure 4A Specie apportionment king salmon Un-alakleet sonar 1983

~

25

-l20

c 1 5 III () III

11

10

5

I

J

27 31 5 10 15 20 25 30 5 10 15 20 25 31

June Ju Iy

Figure 4B Specie middotapp~~tionment coho salmon Unalakleet sonar 1983

30

25

co ~

20

1 t~

C $

u 1 5 CD a

10

5

5 10 15 20 25 31 5 10 15 20 25 31 5

Ju August Sept e

Figure 4C Specie apportionment pink salmon Unalakleet sonar 1983

1 6

1 5

14

1 3

12

1 1

c II U CII

Ashy

10

9

a

7

01 ~

6

5

4

3

2

1

1 5 10 1 5

June

2 O 25 30 5 10 15 20

Ju Iy

25 31 5 10 15 20

August

25 31 5 10

Septem

Figure 40 Species apportionment chum salmon Unalakleet sonar 1983

16

1 5

1 4

13

1 2

1 1

10

9 c 8GI U

GI middot7 A

6

5

4

3

2

1

~

o N

~

1 5 10 15 20 25 30 5 10 15 20 25 3 1 5 10 15 20 25 31 5 10

June Ju Iy August Sept e

Figure 5 Specie apportionment Unalakleet sonar 1983

50

4

40

35

c J 30 0 U

~ 0 25 0 c Q)

u ~

Q) 20a

15

10

5

o L-_lt---__

King Coho Pink Chum Misc

21

----

Figure 6 Sector distribution of counts Unalakleet sonar1983

35

30

25

c 20 G)

() G) 15

0

10

5

35

30

25 c G)

() 20

G)

0 15

10

5

( s ()u t h ban k )

July 3-5

~-2 4 6 8 1 0 1 2 1 4 1 6shy

Sector

August 21-23

2 4 6 8 10 12 14 16

Sector

22

Figure 7 Hourly distribution of counts Unalakleet sonar 1983

(south bank)

14

12

10

c 8 GI U ~

6

July 3-5

~GI

I =~ Q

4

2 0

2 4 6 8 10 12 14 1 6 18 20 22 24

TIme

9

8

7

6

5 c GI U ~ 4 GI

Q

3

2

August 21-23

1

0

2 4 6 8 10 12 14

TIme

16

23

18 20 22 24

Figure 8 Unalakleet River Test Fishing Daily King CPUE in 8 14 mesh 1983

10

9 N

8 shy

7 I 0 c 6E

n

l J I I

0 0 5 c (J 4 co 0

3

2

1

I I

27 1 5 10 15 20 25 1 5 10 15 20 25 31

~ June July

Figure 9 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1983bull

~

middot10

09 U N

I 08 0 c 07E I ()

- 06 E-0 0 05 shy~ () 04 ca - ()

03E I 0 02

01

27 1 5 10 15 2Q 25 1 5 10 15 20 25 31

June July

Figure 10 Unalakleet River Test Fishing Daily Coho CPUE in 5 78 mesh 1983

1

6

5

I 0

NI II I 0 t

E 4

0 0 c 3() cu 0

2

1

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sept U

Figure 11 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1983

200

175

150

I 0 c 125E I ()

E

r-shy-0 I I N 0 100 c ()-as ()

75E I 0

50

25

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sel ber

20

Figure 12 Unalakleet River Test Fishing Daily Pink CPUE in 4 mesh 1983

18

I

0) N

II

16

I ishy

14 J 0 t 12shyE 0 10 0 shys 8 () as

0 6 1 I V 4

2

~ I

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

--

Figure 13 Unalakleet River Test Fishing Cumulat ive Pink CPUE in 4 mesh 1983

10

9 01 N 8

J 0 J 7 E J 0 6 E- 50 ~

amp 4() ca

0 3 E J

0 2

1

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

Figure 14 Unalakleet River Test Fishing Daily CPUE in 5 14 amp 5 78 mesh 1983

14

13shy

12

11

10

9 J 0 8

I z shy-E 7 0 0 shys ~u aI 0

4 I

31

2

1

II

0 C1)I 11

I I I II

bull y AA(net changed to 5 78

AA A 11 I

~ I~ V ~

- I

VI

1 5 10 15 20- 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

cJune July August

Figure 15 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 14 amp 5 78 mesh 1983

It

5

--l C)

net changed to 5 78

~ 4 o

c E (J ~

3E o o c 2 u ~ -(J

E ~ (J 1

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 16 Unalakleet River Test Fishing Catch Proportions 1983

60

55

---- King50

__ Coho 45

P--Q Pink

40 __ Chum

I LU 35J D I 0

30 ICQ 0 25 I

N Cl0 20

c G)

15u G)

D

10

5 A 1 I

I 4 I

I I

3 lt

~

2

I I1 - I bull I

I ~ ~ ~ t -J ~~ - _

r

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 17 Unalakleet Area Temperatures 1983

18

16

14

12

til 10I

u-G) 80 CI) G) G) 6 C) G)

Q 4

2

C) C)

__ Air

0--0 River 2

0

-2

-4

---------~ ~

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August 5e

4

Figure 18 Unalakleet River Turbidity and Depth 1983

__ Secchi Reading

-t ()

II) G)-G)

3

iE 2

1

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August

~ 1 _ ~ r--- I shy I __ I 01 --shy

Figure 19 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1981-83

27 31 5

May

_1981

____ 1982

o 0 1983 11) C)

Changed to 5 78 mesh

I

t

~-~o-~ Q-O--Oolt)-(IQ-----l

--1

_10 15 20 25 30 5 10 15 20 25 31

June July

I I I

~

0 ~

r E ~

CJ shyE 0 0 I

shyr u-cu CJ

E ~

CJ

4

35

30

25

20

15

10

05

Figure 20 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 78 mesh 1981-83

5

4 lI 0

z

E lI 0 3 E-0 0 2 r CJ-cu 0

E lI 1 0

__1981 ~~

~ ___1982

a 01983 5 148 mesh from 65-810

_----shy-- 0 - -- C1) A - _ - ~

~ I

I

II I I I I I

I I

1

~ -

-

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 21 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 mesh- 1981-83

8

70

60

50

40 0

r 30E

0 20E-0 0 10 s= u 8 tV 0 6E 0 4

2

__1981 ____ 1982

_1983

shy--- -- shy--- shy J - -

I

I

C1- J

I

-----l---l ~--~r---------------r--

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 22 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1981-83

_1981

~ __ 1982

~1983

25

00I _ __ _ _ C)~ I __ _ I

I V o 20 rt I I

E I AshyI o E 15-o o z u 10 tU o E I o 5

I

1 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

July August 5

----------------------------------------------------------------

Table 1 Unalakleet River Subsistence King Salmon Index 1983

Number of Number of Date Fishermen Chinook Average

08 02 18 05 05 00 02 58 92 62 72 72 42 28 52 60 62 20 47 50 35 25 15

June 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Totals

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 4 4 4

4

3 1 7 2 2 o 1

23 37 25 29 29 17 11 21 24 25

6 14 15 14 H~

6

322

~

39

---------------------- ---------- --------------------------------------

----------------------------------------------------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983

Daily Proportion Cumu1 Prop Date South North Total of Total Cumulative of Total

64 7 23 30 1313131 313 013131 65 44 187 231 00137 261 01308 66 12 162 174 01305 435 01313 67 8 283 291 1313139 726 01322 68 0000 726 13022 69 3 221 224 013137 950 13029 610 26 245 271 131308 1221 13037 611 56 254 310 131310 1531 131347 612 44 736 780 013 24 2311 13071 613 64 1188 1252 01339 3563 01113 614 59 1752 1811 0056 5374 0166 615 97 844 941 01329 6315 0195 616 165 729 894 0028 7209 0223 617 151 i 604 1755 0054 8964 middot 0277 618 i ll 1524 1635 0051 10599 13328 619 175 2000 2175 0067 12774 13395 620 171 21320 2191 0068 14965 0463 621 220 1613 1833 0057 16798 0520 622 199 2065 2264 0070 19062 0590 623 362 21334 2396 0074 21458 13664 624 876 3403 4279 13133 25737 0797 625 1244 2023 3267- 0101 29004 0898 626 738 1601 2339 0073 31343 0971 627 573 3265 3838 0119 35181 1090 628 547 1868 2415 0075 37596 1165 629 528 4028 4556 0141 42152 1306 630 430 430 0013 42582 1319 71 240 240 01307 42822 1326 72 201 975 1176 0036 43998 1362 73 309 8842 9151 0284 53149 1646 74 475 6385 6860 0213 60009 1859 75 565 3342 3907 0121 63916 1980 76 1377 2094 3471 0108 67387 2088 77 1416 3173 4589 0142 71976 2230 78 1472 1420 2892 0090 74868 2320 79 2071 1452 3523 01113 78391 2430 710 3318 2434 5752 0178 84143 2608 711 2673 2866 5539 13172 89682 2780 712 1665 1747 3412 13106 93094 2886 713 21317 1951 3968 13123 97062 3009 714 2991 2664 5655 0175 102717 3184 715 2646 2548 5194 13161 107911 3345 716 2488 2886 5374 0167 113285 3512 717 1585 4063 5648 0175 118933 3687 718 3559 9326 12885 0400 131818 4087 719 2948 2398 5346 13166 137164 4253 720 1640 3330 4970 0154 142134 4407 721 2416 6420 8836 0274 150970 4681 722 3298 3298 0102 154268 4783 723 5007 5007 0155 159275 4938

40

--------------------------------------------------------------------

--------------------------------------------------------------------

-----------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983 (Continued)

Daily Proportion Cum Prop Date South North Total of Total Cumu1at i ve of Total

724 4005 7804 11809 0366 171084 5304 725 2453 3392 5845 0181 176929 5485 726 2166 12094 14260 0442 191189 5927 727 1914 4472 6386 0198 197575 6125 728 1603 3463 5066 0157 202641 6282 729 1251 1914 3165 0098 205806 6380 730 1710 2495 4205 en30 210011 6510 731 2542 1887 4429 0137 214440 6647 81 4479 2271 6750 0209 221190 6856 82 1103 1806 2909 0091 224099 6947 83 1719 942 2661 0083 226760 bull 7030 84 1519 2557 4076 0126 230836 7156 85 1259 1113 2372 0074 233208 7230 86 940 2189 3129 0097 236337 7327 87 1467 4354 5821 0180 242158 7507 88 2318 1584 3902 0121 246060 7628 89 2098 1505 3603 0112 249663 7740 810 2629 1517 4146 bull 0129 253809 7869 811 3753 1091 4844 0150 258653 8019 812 1489 523 2012 0062 260665 8081 813 744 353 1097 0034 261762 8386 814 981 981 bull 0030 262743 8145 815 2324 2324 0072 265067 8217 816 2638 2638 0082 267705 8299 817 2073 731 2804 0087 270509 8115 818 2244 675 2919 0091 273428 8477 819 3240 696 3936 0122 277364 8599 820 2363 503 2866 0089 280230 8688 821 6789 1111 7900 0245 288130 8933 822 6489 563 7052 0219 295182 9152 823 5077 298 5375 0167 300557 9319 824 2616 298 2914 0090 303471 9409 825 3933 412 4345 0135 307816 9544 826 1393 554 1947 0060 309763 9604 827 1203 463 1666 0052 311429 9656 828 1197 542 1739 0054 313168 9710 829 1244 221 1465 0045 314633 9755 830 1011 199 1210 0038 315843 9793 831 718 214 932 0029 316775 9822 91 1324 318 1642 0052 318417 9874 92 1362 307 1669 0052 320086 9926 93 1146 314 1460 0045 321546 9971 94 652 296 948 bull 0029 322494 10000

148465 174029 322494 10000

41

----------------------------------------------------------------------

-------------------------------------------------------------------- --

------

TABLE 3A Unalakleet River Species Apportionment by Test Period King Salmon 1983

3-Day App Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 76 0272 76 0272

69-612N 28 0100 104 0372

612N-615 461 1652 565 2024

616-619N 419 1502 984 3526

619N-622 170 0609 1154 4135

623-626N 722 2588 1876 6723

626N-629 264 0946 2140 7669

630-73N 103 0639 2243 8038

73N-76 188 0674 2431 8712

77-710N 0 0000 2431 8712

710N-713 0 0000 2431 8712

714-717N 267 0957 2698 9969

717N-720 0 0000 2698 9669

721-724N 92 0331 2790 1 0000

724N-727 0 0000 2790 10000

728-731N 0 0000 2790 1 0000

731N-83 0 0000 2790 1 0000

2790 10000

42

Dates

714-717N

717N-720

721-724N

724N-727

728-731N

731N-83

84-87N

87N-810

811-814N

814N-817

818-821N

821N-824

825-828N

828N-831

91-94

TABLE 3B Unalakleet River Species Apportionment by Test Period Coho Salmon

3-Day Count

583

338

436

550

2650

1174

793

1435

5074

1280

435

2265

171H3

1983

Proportion of Season Total

0000

0000

0000

0343

0199

0256

0323

1558

0690

0466

0843

2983

0752

0256

1331

Cumulative Count

583

921

1357

1907

4557

5731

6524

7959

13033

14313

14748

17013

Cumulative Proportion

0000

0000

0000

0343

0542

0798

1121

2679

3369

3835

4678

7661

8413

8669

10000

43

------------------------------------------------------------------

------------------------------------------------------------------

----- ------

TABLE 3C Unalakleet River Species Apportionment by Test Period Pink Salmon 1983

3-Day P roport ion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 0 0000

6l2N-615 0 0000

616-6l9N 97 0012

6l9N-622 332 0036

623-626N 1245 0136

626N-629 6624 0721

630-73N 3699 0403

73N-76 10762 1171

77-7l0N 7704 0838

710N-7l3 8529 0928

714-717N 9771 1063

717N-720 13845 1507

721-724N 11361 1236

724N-727 6544 0712

728-731N 3545 0386

731N-83 1628 0177

84-87N 1224 0133

87N-810 1777 0193

811-814N 802 0087

814N-817 561 0061

818-821N 533 0058

821N-824 8313 13091

825-828N 468 0051

828N-831 0 0000

91-94 0 0000

91881 10000

0 0000

0 0000

0 0000

97 0012

429 0048

1674 0184

8298 0905

11997 1308

22759 2479

30463 3317

38992 4245

48763 5308

62608 6815

73969 8051

80513 8763

84058 9149

85686 9326

86910 9459

88687 9652

89489 9739

90050 9800

90583 9858

91413 9949

91881 10000

91881 10000

91881 1 0000 44

------------------------------------------------------------------

------------ ------------------------------------------------------

----- ------

TABLE 3D Unalakleet River Species Apportionment by Test Period Chum Salmon 1983

3-Day Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 100 0017

612N-615 268 0046

616-619N 838 0144

619N-622 1180 0202

623-626N 2744 0471

626N-629 1569 0270

630-73N 796 0137

73N-76 2972 0510

77-710N 2068 0355

710N-713 2622 0450

714-717N 4133 0710

717N-720 5596 0960

721-724N 4978 0854

724N-727 8974 1540

728-731N 2241 0385

731N-83 2079 ~0357

84-87N 3009 0516

87N-810 2432 0417

811-814N 937 0161

814N-817 454 0078

818-821N 2584 0443

821N-824 2739 0470

825-828N 1783 0306

828N-831 765 0131

91-94 412 0070

58273 10000 45

0 0000

100 0017

368 0063

1206 0207

2386 0409

5130 0880

6699 1150

7495 1287 f

10467 1797

12535 2152

15157 2602

19290 3312

24886 4272

29864 5216

38838 6666

41079 7051

43158 7408

46167 7924

48559 8341

49536 8502

49990 8580

52574 9023

55313 9493

57096 9799

57861 9930

58273 1 0000

-------------------------------------------------------------

------------------------- ------------------------------------

TABLE 4 Unalakleet River Test Net Proportions by Sample Perio-d 1983 ( Selective CPUE)

Dates Chinook Coho Pink Chum Misc

64-68 105 00 00 895

69-612N 24 00 83 893

612N-615 1C~ 5 00 61 834

616-619N 78 18 156 748

619N-622 23 45 160 772

623-626N 65 112 247 576

626N-629 22 553 131 294

630-73N 16 576 124 284

73N-76 10 572 158 260

77-710N 00 555 149 296

710N-713 00 540 166 294

714-717N 14 00 513 217 256

717N-720 00 00 532 215 253

721-724N 04 00 493 216 287

724N-727 00 18 202 277 503

728-731N 00 23 242 153 582

731N-83 00 30 112 143 715

84-87N 44 98 241 617

87N-810 182 122 167 529

811-814N 139 95 111 655

814N-B17 96 68 55 7B1

B18-B21N 105 39 1B9 667

821N-824 263 43 142 552

825-B28N 145 53 202 600

828N-831 97 00 171 732

91-94 396 00 72 532

46

--------

--------

TABLE 4 Una1ak1et River Test Net Proportions 1983 ( Selective CPUE) (Continued)

Comparative Apportionment

Species Apportionment

Chinook 2790 Coho 17013 Pink 91881 Churn 58273

------shySubtotal 169957

Misc Species 152537 ------shy

Total 322494

Substrate Comparison -------------------shy

Bank Counts -----shy

South 148465 North 174029

------shy

Total 322494

Percent of Total Counts

09 53

285 181

5408

472

1000

Percent

460 540

1000

47

-------------------------------------------------------------------

TABLE 5A Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

May 27 28

21 5 482

13 13

1313

1313 21 5 697

13 13

1313

1313 30 240 0 013 937 0 00 31 246 2 41 1183 2 08

June 1 237 0 00 1420 2 07 2 3

256 585

13 13

013 bull 13 13

1676 2 261

2 2

6bull 13 4

5 6 8

160 120 middot 125

13 1

13 42 130

2 421 2541 2666

~ 2 3 3

bull 13 4 136 136

9 122 0 130 2788 3 05 11 117 00 2905 3 05 12 126 13 00 3031 3 05 13 117 1 43 3148 4 06 15 118 0 013 3266 4 136 16 116 1 43 3382 5 138 18 240 13 130 3622 5 07 19 121 0 00 3743 5 07 20 116 0 00 3859 5 136 22 118 1 42 3977 6 138 23 119 1 42 4196 7 08 25 240 0 013 4336 7 138 26 119 13 1313 4455 7 138 27 119 13 1313 4574 7 138 29 1213 13 130 4694 7 137 313 1213 13 00 4814 7 07

July 2 238 0 1313 51352 7 07 3 118 13 013 51713 7 07 4 118 1 42 5288 8 138 6 122 0 00 5410 8 07 7 116 13 00 5526 8 07

10 126 0 1313 5652 8 07 11 119 0 013 5771 8 07 13 116 13 130 5887 8 07 14 119 2 84 6006 10 07 17 122 0 00 6128 10 07 18 112 0 1313 6240 10 136 20 119 13 00 6359 10 06 21 112 0 013 6471 10 06

6471 10

48

------------------------------------------------------------------

------------------------------------------------------------------

TABLE 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983

Cum Cum Date Hours Catch CPUE Hours Catch CPUE

July 24 26

115 120 0 00

115 235

0 0

00

00 27 117 4 00 352 0 00 29 117 0 137 469 4 34 31 116 3 103 585 7 48

August 2 122 0 00 706 7 40 3 122 2 66 828 9 43 5 118 1 34 946 10 42 7 128 14 437 1074 24 89 9 257 14 218 1331 38 114

10 125 21 672 1456 59 162 12 13 middot- 0 00 1469 x 59 161 14 10 7 12 449 1576 71 180 16 122 2 66 1698 73 172 17 123 6 196 1821 79 174 19 118 1 34 1939 80 165 21 112 6 214 2051 86 168 23 120 3 100 217 1 89 164 24 115 2 70 2286 91 159 26 115 5 174 2401 96 160 28 119 0 00 2520 96 152 30 119 4 1 34 2639 100 152 31 117 1 34 2756 101 147

Sept 2 123 5 33 2879 106 147 4 479 15 125 3358 121 144 6 238 11 185 3596 132 147 7 237 5 84 3833 137 143 8 238 6 1 01 4071 143 141 9 242 10 1 65 4313 153 142

10 242 3 50 4555 156 137 11 242 2 33 4797 158 132 12 241 8 133 5038 166 132 14 227 14 247 5265 180 137 15 242 9 149 5507 189 137 16 210 3 57 5717 192 134 17 239 2 33 5956 194 130 18 230 2 35 6186 196 127 20 489 4 33 6675 200 120 21 24 3 50 6915 203 117 22 242 0 00 7157 203 113 23 234 1 17 7391 204 110

----shy

7391 204

Mesh size = 5 14 from 724 to 810

49

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TABLE 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE ------~-----------------------------------------------------------June 16 122 1 33 122 1 33

17 118 0 bull 0 0 240 1 17 20 120 2 67 360 3 33 21 118 0 00 478 3 25 23 119 2 67 597 5 34 24 119 3 102 716 8 45 27 116 19 655 832 27 130 28 120 22 733 952 49 206 30 120 40 1333 1072 89 332

July 1 115 36 1252 1187 125 421 4 122 30 983 1309 155 474 5 114 47 1649 1423 202 568 7 118 30 1016 1541 232 602 8 120 shy 24 800 1661 -$ 256 616

11 122 42 1377 1783 298 669 12 120 29 967 1903 327 687 14 116 37 1276 2019 364 721 15 118 40 1356 2137 404 756 18 121 60 1976 2258 464 822 19 119 30 740 2377 494 831 21 125 61 1952 2502 555 887 22 118 25 847 2627 580 883 25 122 16 525 2749 596 867 26 116 15 517 2865 611 853 28 122 28 918 2987 639 856 29 117 11 376 3104 650 838

August 1 120 7 233 3224 657 815 2 119 9 303 3345 666 796 4 120 3 100 3465 669 772 5 118 5 170 3583 674 752 8 114 7 245 3697 681 734

11 123 7 337 3 82 0 688 720 15 118 2 68 3938 690 701 16 113 5 177 4051 695 686 18 98 3 122 4149 698 673 19 119 1 34 4268 699 655 22 112 0 00 4380 699 638 23 115 0 00 4495 699 622 25 120 2 66 4615 701 606 26 112 1 36 4727 702 594 29 116 0 00 4843 702 580 30 11 5 0 00 4958 702 566

Sept 1 115 0 00 5079 702 553 2 112 0 00 5191 702 541

----shy5079 702

50

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TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

June 5 73 0 00 73 0 00 7 126 0 00 199 0 00 8 127 0 00 326 0 bull 0 0

10 11 4 3 105 440 3 27 12 113 2 71 553 5 36 14 119 1 34 672 6 36 15 116 4 138 788 10 51 17 116 3 103 904 13 56 19 118 6 203 1022 19 74 21 118 0 00 1140 19 67 22 117 10 342 1257 29 92 24 116 3 103 1373 32 93 26 119 11 370 1492 43 115 28 11 8 6 203 1610 $ 49 122 29 115 13 452 1725 62 144

July 1 119 8 269 1844 70 152 3 119 17 571 1963 87 177 5 119 13 437 2082 100 192 6 12 0 17 567 2202 117 213 8 121 7 231 2323 124 214

10 11 4 18 632 2437 142 233 12 115 12 417 2552 154 241 13 116 37 1276 2668 191 286 15 117 16 547 2785 207 297 17 11 8 31 1051 290 3 238 328 19 118 18 610 3021 256 339 20 115 29 1009 3136 285 364 22 122 17 557 3258 302 371 24 115 24 835 3373 326 387 26 120 19 633 3493 345 395 27 117 11 376 3610 356 394 29 117 14 479 3727 370 397 31 116 18 621 3843 388 404

August 2 121 9 298 3964 397 401 3 122 17 557 4086 414 405 5 11 8 8 271 4204 422 402 7 128 19 594 4332 441 407 9 257 10 156 4589 451 393

10 125 14 448 4714 464 394 12 13 1 308 4727 465 393 14 107 5 187 4834 470 389 16 122 4 131 4956 474 383 17 123 15 488 5079 489 385 19 118 8 271 5197 497 383 21 112 3 107 5309 500 378 23 120 6 200 5429 506 373 24 115 7 243 5544 513 370

51

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TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 (Continued)

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

August 26 115 5 174 5657 518 366 28 119 1 34 577 6 519 359 30 119 4 134 5895 523 355 31 117 0 00 6012 523 3 48

Sept 2 123 3 98 613 5 526 343 4 479 2 17 6614 528 319 6 238 1 17 6852 529 309 7 237 0 00 7089 529 298 8 9

238 242

1 2

17

33 7327 7569

clt

530 532

289 281

10 242 3 50 7811 535 274 11 242 0 00 8053 535 266 12 241 2 33 8294 537 259 14 227 3 53 8521 540 253 15 242 0 00 8763 540 246 16 210 1 19 8973 541 241 17 239 2 33 9212 543 236 18 230 0 00 9442 543 230 20 489 0 00 9931 543 219 21 240 2 33 10171 545 214 22 242 0 0 10413 545 209 23 234 0 00 10647 545 205

----shy

10647 545

52

------------------------------------------------------------------------

------

TABLE 6A Unalakleet River Sonar Site Drift Sets5 1 4n Me sh 19 83 bull

Date Time Result

July 19 1405-1413 1 burbot July 23 1040-1055 1 pink caracass July 27 1520-1530 1 coho August 3 1444-1501 4 coho August 22 1930-1937 0 August 23 937-943 1 coho 1 pink carcass August 26 1117-1127 1 coho 3 churn August 31 1018-1034 3 churn

TABLE 6B Unalakleet River Sonar Site Beach Seines 1983

Date Time Distance Result

July 20 1445 120 meters 4 pink 1 churn 13 Dolly Varden 1 whitefish

July 25 1500 120 meters 6 pink 1 churn 1 Dolly Varden 4 whitefish 1 grayling

July 28 1700 120 meters 4 coho 2 pink 2 churn 1 Dolly Varden

August 1 2010 300 meters 4 pink 3 churn 8 Dolly Varden

August 4 1015 130 meters 5 coho 3 pink 3 churn 65 Dolly Varden 3 whitefish 3 grayling

August 24 1110 130 meters 18 coho 2 Dolly Varden 2 grayling

August 29 1715 120 meters 11 coho 1 pink 69 churn 1 Dolly Varden 2 grayling

Seine done at mile 12 Unalakleet River

53

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TABLE 7 AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER CATCH SAMPLE SPORT CATCH AND SPAWNING SURVEYS 1983

II

COMBINED 3-2 4-2 4-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 31 646 6702 5 104 5010 8 167 5688 1 21 5900

Female 17 354 8540 o o 1 21 5450 o o

Total 48 1000 7353 5 104 5010 9 188 5661 1 21 5900

~ 11)

5-2 6-2 7-2 7-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 11 229 7382 6 125 8350 0 0 0 0

Female 2 42 7925 12 250 8742 1 21 10650 1 21 8350

Total 13 271 7465 18 375 8611 1 21 10650 1 21 8350

TABLE 8A AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER TEST NET SAMPLE 1983

-----~-------------------------------------------------------------------------------------------------------

gt

COMBINED 4-2 5-2 5-3 6-2 7-2 NO LENGIH NO LENGIH NO LENGIH NO LENGTH NO LENGTH NO LENGTr

8 14 n

Male 3 333 8107 0 1 111 5800 o 0 2 222 9260 0 0 Female 6 667 8295 0 0 1 111 7600 o o 4 444 8310 1 111 8930 Total 9 10 e 0 8232 0 o 2 222 6700 o o 6 667 8627 1 111 8930

If) If)

5 14 Male 19 1000 6298 12 632 5392 4 211 6990 0 o 3 158 8997 0 0 Female o 0 o o o o o o 0 0 0 0 Total 19 1000 6298 12 632 5392 4 211 6990 o o 3 158 8997 0 0

4 n or Smaller Male 6 667 5930 1 111 4660 2 222 6325 3 333 6090 0 o 0 o Female 3 333 8970 o o o o o o 3 333 8970 0 o Total 9 1000 6943 1 111 466 2 222 6325 3 33 3 6090 3 33 3 8970 0 0

TOTAL Hale 28 757 6413 13 351 5336 7 189 6630 3 8 1 6090 5 13 5 9102 o 0 Female 9 243 852 o o 1 27 7600 o o 7 189 8593 1 2 7 8930 Total 37 1000 6925 13 351 5336 8 216 6751 3 8 1 6090 12 324 88 e 5 1 2 7 8930

---------------------------------------------------------------------------------------------------------

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TABLE 8B AGE SEX AND SIZE COMPOSITION OF NORTON SOUND COHO SALMON UNALAKLEET RIVER TEST NET SAMPLE 5 14 AND 5 78 GEAR 1983

COMBINED 3-2 4-3 4-4 5-4 NO LENGIH NO LENGIH NO LENGTH NO LENGIH NO LENGTH

Male 9 900 5489 0 0 9 900 5489 0 0 Female 1 10 bull 0 552 QJ QJ 0 1 10QJ 5520 0 0 Total 10 1000 5492 0 0 10 1000 5492 0 0 725-731

bull LI)Male 15 938 5645 15 938 5645 Female 1 62 575 QJ 1 62 575 QJ Total 16 lQJ0QJ 5651 16 100QJ 5651 81-87

Male 24 545 5668 23 523 5768 1 23 3350 Female 20 455 5631 20 455 5631 0 0 Total 441QJ0QJ 5651 43 977 57 QJ 4 1 23 335 QJ 88-814

Male 7 500 5797 7 500 5797 QJ 0 Female 7 500 5596 6 429 5587 1 71 5650 Total 14 1000 5696 13 929 1 71 5650570 815-821

Male 5 455 5492 5 455 5492 Female 6 545 5552 6 545 5552 Total 11 lQJ00 5525 11 100QJ 5525 822-828

fisheries and the problems of estimating escapement in this subdistrict side-scanning sonar was installed in 1982 in the Unalakleet River in hopes of gaining a more accurate estimate of escapement and at the very least a more consistent index of salmon migration

A test fishing program was in operation in 1981 in the lower four miles of the Unalakleet River Indices from this study were instrumental in helping the area biologist set some commercial fishing periods In 1982 sonar counts proved useful as an index of the coho salmon escapement and were used by the area biologist in extending the coho fishery

A number of problems affecting sonar counts became more apparent during the 1983 season These problems brought on by low river velocity (13 to 17 fps) and tidal f1uctuationi included milling salmon and allocating counts to five different fish classifications

With increased harvest effort on the chinook population a limited sport fish survey was begun

This report presents the results of the Unalakleet sonar projects second year of operation and comparison of test fishing indices from 1981 to 1983

METHODS

Project Deployment

Supplies and equipment were on-site and camp construction was completed on May 28 Both north and south bank counters were in operation on June 4 Sonar counter operation ceased on September 4 91 days after counting was initiated By September 6 the sonar camp had been dismantled and the equipment stored for the winter

Test fishing began on May 27 and ended on September 23

Sonar

The Electrodynamics Division of the Bendix Corporation developed a side- scanning hydroacoustic counter during the 1970s capable of detecting and counting salmon migrating along the banks of tributary streams The side-scan sonar counter is designed to transmit a sonic beam along a 60 foot aluminum tube or substrate

-2shy

Echoes from fish passing through the beam are reflected to the transducer The systems electronics interpret the strength and number of the echoes and tally fish counts

Two Bendix side-scan counters 1981 models were used on the Unalakleet River The respective 60-foot tubular aluminum substrates were deployed from opposite banks of the Unalakleet River Both substrates were positioned so there was at least two feet of water over the sonar beam that is projected immediately above the substrate that is two feet over the transducer housing and seven feet over the target end of the substrate It was found that three feet of water was needed as a buffer to eliminate debris counts due to wind ripples flotsam and sudden water level changes A small weir _ was placed to prevent fish passage inshore from the transducer on both sides of the riverThe substrates were not located directly opposite each other The north bank substrate was located 400 feet upstream from the south bank substrate which was placed in a nearly ideal river bottom profile Unfortunately mud shallows were opposite the south bank During the season fish behavior necessitated movement of the north bank substrate to a site 300 feet downstream of the south bank substrate

The river width at this site is approximately 200 feet The deepest channel is located about 80 feet from shore at the north bank substrate and about 100 feet from shore at the south bank substrate Although one-third of the river is isonified by the sonar beams if fish follow a depth contour then more than two-thirds of the possible fish paths would be covered by the sonar counters

The substrates were moved several times during the summer because of water level changes or for cleaning The substrates were guyed to two dead men each in the form of buried logs held in place with fence posts Stainless steel aircraft cable fastened to each end of the substrate was attached to respective dead men on shore

The cables were roughly parallel and adjusted to hold the substrate perpendicular to shore The inshore cable was long enough to allow the substrate to remain perpendicular to shore even though it might be moved 15 feet from shore The easiest method of movement of the substrate was to use the hydrodynamic shape of the substrate to raise itself and push against the substrate with a handy man jack The inshore footing could then be relocated with a minimum of

-3shy

effort

Although the current at the sonar site was insufficient to raise the tube to the surface it did help in pulling it up to a point where it could be cleaned

Calibration (a comparison of oscilloscope fish counts and sonar fish counts) was scheduled four times daily on both banks The magnitude of the fish milling problem compounded by slow fish passage made this schedule impractical much of the summer Calibration was attempted when usable results seemed impossible it was not attempted at extreme rates of fish passage Calibration was done by comparing echoes on a Tektronix 221 oscilloscope with counts of the sonar counter Salmon passing through the sonar beam produce a distinctive oscilloscope trace A count of 100 fish within 30 minutes the maximum calibration period was required before resetting the sonar fish velocity controls

agreement = Sonar computer count Oscilloscope count

The agreement was then used to adjust the daily counts Agreement of less than 1 indicates the sonar was undercounting and greater than 1 indicates overcounting

When the count agreement varied more than 15 then the following equation was used to derive a new fish velocity

agreement x existing velocity = new velocity

Milling fish became a problem on June 28 on the north bank when slow migrating and milling pink salmon oscars started riding the substrate turbulence wave Based on counting tower observations it was determined that all sixteen sectors were affected On July 1 and 2 the substrate was moved approximately 700 feet downstream to the base of a small cliff with somewhat faster water velocity Pink salmon began riding the substrate at the new site within hours Oscars were not a problem on the south bank during this time therefore in order to estimate the passage on the north bank the average hourly passage rate (percent per hour of the daily total) of the preceding three day period of the south bank was used to calculate daily totals for the

-4shy

north bank based upon hours which were not apparently effected by oscars

Total of Preceding 3-day valid hourly sum of daily

Daily total--North = counts--north x counts--South Total of corresponding hourly counts for preceding 3 days--south

After two weeks of attempting to deal with milling fish the following policy was decided on The sonar beam was raised slightly so that a strong target was seen in the four degree mode but a decrease in target strength was barely apparent in the two degree mode The offshore end of the substrate was moved middotfive feet downstream from the perpendicular placement used earlier The beam was extended as far as possible beyond the target These measures seemed to eliminate fish avoidance of the substrate as a problem

Other milling problems were not satisfactorily resolved Salmon moving downstream were not counted by the sonar but those same fish moving upstream could be counted by the sonar It was decided to invalidate an hourly count if milling fish were observed from a tower or oscilloscope or if sonar criteria were not met Disqualifying sonar criteria were hourly debris checks or a large fish count over 15 The large fish count indicated fish moving over the substrate in a tight school which was characteristic of milling behavior King salmon in the Unalakleet did not seem to reflect a long enough signal to register as large fish however two or three small salmon could register if they were close to the same distance from the transducer and spaced in an overlapping manner

Records of changes in counter settings river conditions and other unusual occurrences were also used in adjusting daily sonar counts

The large fish counter on the 1981 model sonar counter was ignored except as an index of milling fish

Test Fishing

The same test fishing site as in 1981 and 1982 was used during the 1983 season

-5shy

The ten fathom 8 14 gillnet was set from May 27 to May 31 A twenty fathom 8 14 gillnet was set on June 1 and fished until June 4 From June 5 to September 4 the period of sonar operation a rotating schedule of twelve hour time blocks over a period of three days was used The nets used included

1 20 fm 8 14 mesh 2 25 fm 5 14 mesh (June 5-August l025 fm 5 78

mesh (August II-September 4) 3 25 fm 4 mesh 4 15 fm variable mesh

The 25 fm 5 78 mesh gillnet was fished from September 5 to September 25 The 8 14 mesh net and the v~riable mesh net were fished concurrently The three-day rotation schedule allowed each net to be fished during one 12-hour high tidedaylight period and one 12-hour low tidenight period Nets were rotated at 0900 and 2HJ0 daily The 8 14 mesh net was removed from the rotation on July 21 because the chinook migration was completed

The CPUE (catch100 fm-hr) was calculated for the two most efficient nets for each species to be used in apportioning sonar counts These CPUEs for chinook coho pink chum and other species presumably detectable by sonar were totaled and the species CPUE divided by the total CPUE for all species to give the percent of the periods sonar counts to each specie The seventh day of the week was apportioned by using the previous 3-day proportions for one half of the counts and the following 3-day proportions for the second half of the counts

Test net data (Tables 5A 5B 5C and 5D) was calculated for the single most effective net for each species for separate analys is

Weights lengths and scale samples were taken from all chinook coho and chum captured Pink salmon were counted only Tissue samples were taken from test net chinook salmon for electrophoretic studies coordinated by the Stock Separation Section of the Commercial Fisheries Division

Counting Towers

Counting towers were erected immediately adjacent to the

-6shy

onshore end of each substrate (Figure 2) As in 1982 the use of visual tower counts for comparison with sonar counts could not be relied upon due to river width surface disturbances etc however several short comparisons were possible The towers proved invaluable in determining the presence of moribund fish debris passage presence of oscars fish swimming behavior etc The 1983 low river level and generally less turbidity as compared to 1982 allowed more rapid and concrete identification of the milling fish Without use of the tower the severity of the milling fish problem may not have been discovered

Drift SetsBeach Seines

Drift sets and beach seines were done for comparison with test net species apportionment and to determine fish passage beyond the sonar counting range Drjft sets were accomplished by drifting a 25 fm 5 14 gillnet perpendicular to the shore The 25 fm net allowed the major portion of the river to be fished thus only one drift was done per set as opposed to 1982 when a drift set was done near each bank Set durations ranged from 5 to 17 minutes dependent upon boat traffic wind conditions etc Drift sets were done on July 19 23 and 27 and August 3 22 23 26 and 31

Beach seines were accomplished by using a 25 fm 3 mesh seine immediately downstream of the south bank substrate Shoreline conditions prevented se1n1ng near either north bank site Beach seines on the south bank were done on July 20 25 and 28 and August 1 and 29 Beach Unalakleet River were done on August 4 and levels prevented seining from August 4 to

seines 24

24

at High

mile 12 water

Riyer Surveys

Two river surveys were attempted during 1983 A jet boat was taken up the North River on July 29 This proved to be early for carcass sampling but weather and equipment problems prevented a later survey

A float trip of the Old Woman and upper Main River was also made A plane landing mishap greatly reduced the scope of this trip Weather prevented any follow up work

Subsistence Surveys

A daily survey of three to five sUbsistence fishermen is

-7shy

made from the time the first king salman is caught early in June through the remainder of that month These people must be trustworthy conscientious about checking their nets and fairly successful The average daily catch is compared to the previous day to develope the annual trend and the total catches and the annual trend is compared to past years Commercial catch and effort data and the up-river test net data are used in conjuction with the subsistence catch to anticipate strategies

future catches and management

During late September made of Unalakleet

an The

extensive door to door survey is Annual Management Report covers

subsistence surveys in detail

RESULTS

~istence Survey

The Unalakleet subsistence survey made in late September interviewed 74 subsistence fishermen 68 of whom fished in the river and 17 who fished in the ocean The catch was predominantly from the river with 1480 king 6311 coho 13458 pink and 4124 chum salmon reported The ocean subsistence catch was 388 king 577 coho 350 pink and 277 chum salmon

The mean chinook salmon catch per fisherman peaked on June 16 This compares with July 3 in 1982 and June 19-22 in 1981 All subsistence fishermen surveyed in 1983 were fishing within one mile of the river mouth

Chinook subsistence survey results are presented in Table 1 and Figure 3 As in 1981 and 1982 the variances in nets fishing times and net locations call for calculation of mean catch per fisherman as opposed to catch per unit effort

Sonar

During the period from June 4 to September 4 the final sonar count was 322494 148465 (460) counts were tallied on the south bank and 174029 (540) counts were tallied on the north bank

The daily sonar counts (Table 2) were adjusted by the test net proportions (Table 4) to give the following escapement estimates for the period June to September 4

-8shy

Species Total Count LQf Total

Chinook 2790 09 Coho 17013 53 Pink 91881 285 Chum 58273 181 Other 152537 AL2

322494 1000

Tables 3A 3B 3C 3D and 4D present this data by 3-day sample period Based on discussions with Al Menin and Dave Gaudet about the ability of sonar counters to discriminate between various target shapes and sizes any fish two and one half pounds or laterally compressed fish ~f one pound or larger could be counted by a sonar calibrated for pink salmon Fish other than salmon considered countable by the sonar counter included arctic char grayling burbot and broad humpback and Alaska whitefish

Peak adjusted apportioned sonar counts were on June 23 for chinook August 21 for coho July 18 for pink and July 25 for chum salmon (Tables 3A 3B 3C and 3D Figures 4A 4B 4C and 4D)

Representative passage rates on the south bank by sector and by hour for July 3-5 and August 21-23 are presented in Figures 6 and 7 These periods were chosen because of minimal adjustments to raw counts north bank counts are not presented due to lack of relatively clean data for those periods

Test Fishing

A total of 19 chinook (74 male - 26 female) 294 coho (61 male 39 female) 1156 pink (52 male - 48 female) and 915 chum (54 male - 46 female) was captured from May 27 to September 23 The fish were sampled and delivered to Hartha Nanouk a local subsistence fisherman as per agreement for the use of her traditional set-net site

Based on the single most effective test net CPUE the chinook migration did not peak as such but rather showed most consistent catches on June 22 and 23 coho migration peaked from August 10-14 pinks from July 18-22 and chum on July 13

-9shy

Comparisons of daily CPUE and cumulative CPUE for all salmon species are presented in Tables SA 58 5C and 5D and Figures 8 thru 15 Of interest although not as useful for annual comparison due to different test net methods net mesh sizes fishing time etc the actual fish caught from 1981 to 1983 are

~ 1982 un 41 chinook 39 chinook 39 chinook

107 coho 310 coho 294 coho 1463 pink 5114 pink 1156 pink

722 chum 375 chum 915 chum

f

Age Sex and Size Composition of Test Net Catches

An age analysis of scales collected during the project indicated the following age compositions king salmon all gear sizes (4-2131 5-2 22~ 5-3816-23217-2 3) coho salmon 5 14 and 5 78 gear (3-2 051 4-3 981 4-4 051 5-4 l) chum salmon 5 14 and 5 78 gear (3-1 21 4-1 611 5-1 37) Tables 7 thru 9D show the age composition of the various species broken down by date and the mesh sizes used during the project

Counting Towers

As cited visual tower counts could not be made on the Unalakleet River due to river width surface disturbances turbidity etc However visual observations proved invaluable in identifying spawning behavior etc and resulted in the downstream relocation of the north bank substrate and development of the method used to adjust north bank sonar counts

Drift SetsBeach Seines

Tables 6A and 68 present the results of drift sets and beach seines respectively Drift set results indicate that the portion of the river not isonified was not used by migrating salmon ie the species most countable coho pink and chum salmon would seem to follow the banks and were counted by the side-scan sonar

Beach seines proved useful in verifying the high presence of

-10shy

species other than salmon the relative abundance of coho salmon in August and the presence of spawning churn salmon in the south bank substrate area

Riyer SurveysAerial SurVeys

On July 29th 32 miles of the North River were surveyed by a two-person crew for the purpose of counting live chinook and sampling chinook carcasses A total of 166 live chinook were counted and 3 chinook carcasses were sampled with approximately half of the chinook counted between mile 25 and mile 32

Originally the Old Woman River survey was to be a six-day trip Due to the damage the plane suffered dropping the first crew member off the second member and support gear was not av~ilable for the survey as planned~ The survey of the Old Woman River August 6-8 counted 60 king salmon but only four samples were collected Weather prevented the survey of the main river

King Salmon Spo rt Fish Survey

A sport fishing lodge on the Unalakleet River is responsible for the majority of the sport fishing effort Periodic surveying of lodge personnel indicates that a fair quantity of king salmon are harvested by sport fishing A quantitative survey was not done however due to limited time available A total of 43 chinook was sampled from sport fishing catches

DISCUSSION

River levels were lower than normal during the spring of 1983 due to the lack of snow accumulation the previous winter The Unalakleet River cleared early and became quite low during late June and early July The low water allowed the counting towers at the sonar site to be used during calm survey days which wasnt possible during 1982

Tower observations made as early as June 28 showed serious milling problems at the north bank sonar site The sonar was moved to a new site on July 2 Milling fish were still a considerable problem at the new site but about half the hourly count were considered acceptable during mid-July Milling salmon were a problem through most of the field season Milling salmon of all four species were observed

-11shy

during the latter half of each respective migration Pink salmon presented the worst problem and churn the least Unfortunately milling pinks invalidated the churn count since the two runs overlap Coho salmon exhibited some milling but an accurate evaluation of this problem was hampered by turbid water Milling coho became a problem after August 20

The milling observed from the towers was not apparent to the observer at the oscilloscope because of the overwhelming number of spikes present at that stage of the salmon migration During 1982 when tower observations were not possible the oscilloscope appeared to have an extraordinary number of spikes The large pink salmon count recorded in 1982 may have been an artifact of milling behavior that was unobservable then Commercial catch and test net catch statistics indicate a large pink salmon run f However it is likely fish milling over the substrate exaggerated the sonar count although without tower observations it can not be proven

Another problem observed during the 1983 field season was avoidance of the substrate by all fish species This problem was at its worst when water was low and clear Angling the substrate slightly downstream as it was after July 15 helped considerably By extending the sonar beam periodically it was determined that as visibility decreased so did avoidance

Species apportionment of the sonar count was done using test net catches Some of the problems encountered with the sampling scheme should be pointed out Test nets were assumed to sample the same portion of the river as the sonar Since three net lengths were used this seemed suspect Different species migrate at different depths The non-salmon species tend to migrate in shallow water near shore and generally the larger species migrate in deeper water nearer mid-stream Since only a IS-fathom net of the most efficient type for non-salmon species was fished in the preferred habitat for these fish it is likely that the calculated efficiency was too high The other test nets were longer and also sampled some preferred areas for the targeted species

The opposite case is true for king salmon The 8 14 net is 20 fathoms longS fathoms shorter than the other nets used on this project This net does not cover all of the area preferred by king salmon This means king salmon

-12shy

escapement is probably underestimated but the 20 fathom net samples an area further out than the sonar counter even with its beam extended So the number of king salmon counted by the sonar is over estimated King salmon make up such a small percentage of the total salmon run that counting errors are more significant than this apportionment error

Very few churn and pink salmon were caught in the offshore end of the nets It is assumed these long nets had very little effect on the sonar count species apportionment

CONCLUSION

The feasibility of counting salmon in the Unalakleet River using side-scanning sonar is unlikely due to milling fish and the inal1ility to accurately apportion the sonar count to the various fish species It is possible that a partial escapement count could be made further up river above one or more of the major tributaries to the system The new north bank sonar site that showed some improvement over the former site had two differences that seemed to affect salmon migration The current was faster over the substrate at the second site and the river gravels were less ideal spawning habitat The new site was located below a rock bluff on the outside of a river bend

There are two similar sites up river about ten miles where the current is faster and the bottom is even less conducive to spawning During the 1984 field season a comparison of the smoother running south bank site and these up-river sites could be made The best time to do this would be during August when only coho salmon are migrating The counter should be operating by August 15 prior to milling activity and maintained for a week to evaluate if milling salmon became apparent later after the migration peaked The south bank site could be used as a control for comparison to 1983

-13shy

I I

5 1 2

Miles No tt h _

shy

R Iv er

Figure 1 Unalakleet Escapement Project

lt

Son sr

Fig u r e 2 S 0 0 a r Sit eSc hem a tic

ITower

Original Ninth Bank Sonar

Drift sets 5 minutes

Lf)

So t h Ban k Son a

lTower

o Work Tent

B Living Quarters

Figure 3Unalakleet Subsistence Survey 1983

Kin g- S a I m 0 n

1bull

10

9

c 8aI

-lE 11 t a til 7 ~ II 6 ~ U

5 til

0

c 4 til til

E 3 I

1 V

~ 2

1

27 1 5 10 15 20 25 30

~ June

Figure 4A Specie apportionment king salmon Un-alakleet sonar 1983

~

25

-l20

c 1 5 III () III

11

10

5

I

J

27 31 5 10 15 20 25 30 5 10 15 20 25 31

June Ju Iy

Figure 4B Specie middotapp~~tionment coho salmon Unalakleet sonar 1983

30

25

co ~

20

1 t~

C $

u 1 5 CD a

10

5

5 10 15 20 25 31 5 10 15 20 25 31 5

Ju August Sept e

Figure 4C Specie apportionment pink salmon Unalakleet sonar 1983

1 6

1 5

14

1 3

12

1 1

c II U CII

Ashy

10

9

a

7

01 ~

6

5

4

3

2

1

1 5 10 1 5

June

2 O 25 30 5 10 15 20

Ju Iy

25 31 5 10 15 20

August

25 31 5 10

Septem

Figure 40 Species apportionment chum salmon Unalakleet sonar 1983

16

1 5

1 4

13

1 2

1 1

10

9 c 8GI U

GI middot7 A

6

5

4

3

2

1

~

o N

~

1 5 10 15 20 25 30 5 10 15 20 25 3 1 5 10 15 20 25 31 5 10

June Ju Iy August Sept e

Figure 5 Specie apportionment Unalakleet sonar 1983

50

4

40

35

c J 30 0 U

~ 0 25 0 c Q)

u ~

Q) 20a

15

10

5

o L-_lt---__

King Coho Pink Chum Misc

21

----

Figure 6 Sector distribution of counts Unalakleet sonar1983

35

30

25

c 20 G)

() G) 15

0

10

5

35

30

25 c G)

() 20

G)

0 15

10

5

( s ()u t h ban k )

July 3-5

~-2 4 6 8 1 0 1 2 1 4 1 6shy

Sector

August 21-23

2 4 6 8 10 12 14 16

Sector

22

Figure 7 Hourly distribution of counts Unalakleet sonar 1983

(south bank)

14

12

10

c 8 GI U ~

6

July 3-5

~GI

I =~ Q

4

2 0

2 4 6 8 10 12 14 1 6 18 20 22 24

TIme

9

8

7

6

5 c GI U ~ 4 GI

Q

3

2

August 21-23

1

0

2 4 6 8 10 12 14

TIme

16

23

18 20 22 24

Figure 8 Unalakleet River Test Fishing Daily King CPUE in 8 14 mesh 1983

10

9 N

8 shy

7 I 0 c 6E

n

l J I I

0 0 5 c (J 4 co 0

3

2

1

I I

27 1 5 10 15 20 25 1 5 10 15 20 25 31

~ June July

Figure 9 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1983bull

~

middot10

09 U N

I 08 0 c 07E I ()

- 06 E-0 0 05 shy~ () 04 ca - ()

03E I 0 02

01

27 1 5 10 15 2Q 25 1 5 10 15 20 25 31

June July

Figure 10 Unalakleet River Test Fishing Daily Coho CPUE in 5 78 mesh 1983

1

6

5

I 0

NI II I 0 t

E 4

0 0 c 3() cu 0

2

1

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sept U

Figure 11 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1983

200

175

150

I 0 c 125E I ()

E

r-shy-0 I I N 0 100 c ()-as ()

75E I 0

50

25

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sel ber

20

Figure 12 Unalakleet River Test Fishing Daily Pink CPUE in 4 mesh 1983

18

I

0) N

II

16

I ishy

14 J 0 t 12shyE 0 10 0 shys 8 () as

0 6 1 I V 4

2

~ I

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

--

Figure 13 Unalakleet River Test Fishing Cumulat ive Pink CPUE in 4 mesh 1983

10

9 01 N 8

J 0 J 7 E J 0 6 E- 50 ~

amp 4() ca

0 3 E J

0 2

1

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

Figure 14 Unalakleet River Test Fishing Daily CPUE in 5 14 amp 5 78 mesh 1983

14

13shy

12

11

10

9 J 0 8

I z shy-E 7 0 0 shys ~u aI 0

4 I

31

2

1

II

0 C1)I 11

I I I II

bull y AA(net changed to 5 78

AA A 11 I

~ I~ V ~

- I

VI

1 5 10 15 20- 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

cJune July August

Figure 15 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 14 amp 5 78 mesh 1983

It

5

--l C)

net changed to 5 78

~ 4 o

c E (J ~

3E o o c 2 u ~ -(J

E ~ (J 1

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 16 Unalakleet River Test Fishing Catch Proportions 1983

60

55

---- King50

__ Coho 45

P--Q Pink

40 __ Chum

I LU 35J D I 0

30 ICQ 0 25 I

N Cl0 20

c G)

15u G)

D

10

5 A 1 I

I 4 I

I I

3 lt

~

2

I I1 - I bull I

I ~ ~ ~ t -J ~~ - _

r

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 17 Unalakleet Area Temperatures 1983

18

16

14

12

til 10I

u-G) 80 CI) G) G) 6 C) G)

Q 4

2

C) C)

__ Air

0--0 River 2

0

-2

-4

---------~ ~

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August 5e

4

Figure 18 Unalakleet River Turbidity and Depth 1983

__ Secchi Reading

-t ()

II) G)-G)

3

iE 2

1

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August

~ 1 _ ~ r--- I shy I __ I 01 --shy

Figure 19 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1981-83

27 31 5

May

_1981

____ 1982

o 0 1983 11) C)

Changed to 5 78 mesh

I

t

~-~o-~ Q-O--Oolt)-(IQ-----l

--1

_10 15 20 25 30 5 10 15 20 25 31

June July

I I I

~

0 ~

r E ~

CJ shyE 0 0 I

shyr u-cu CJ

E ~

CJ

4

35

30

25

20

15

10

05

Figure 20 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 78 mesh 1981-83

5

4 lI 0

z

E lI 0 3 E-0 0 2 r CJ-cu 0

E lI 1 0

__1981 ~~

~ ___1982

a 01983 5 148 mesh from 65-810

_----shy-- 0 - -- C1) A - _ - ~

~ I

I

II I I I I I

I I

1

~ -

-

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 21 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 mesh- 1981-83

8

70

60

50

40 0

r 30E

0 20E-0 0 10 s= u 8 tV 0 6E 0 4

2

__1981 ____ 1982

_1983

shy--- -- shy--- shy J - -

I

I

C1- J

I

-----l---l ~--~r---------------r--

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 22 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1981-83

_1981

~ __ 1982

~1983

25

00I _ __ _ _ C)~ I __ _ I

I V o 20 rt I I

E I AshyI o E 15-o o z u 10 tU o E I o 5

I

1 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

July August 5

----------------------------------------------------------------

Table 1 Unalakleet River Subsistence King Salmon Index 1983

Number of Number of Date Fishermen Chinook Average

08 02 18 05 05 00 02 58 92 62 72 72 42 28 52 60 62 20 47 50 35 25 15

June 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Totals

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 4 4 4

4

3 1 7 2 2 o 1

23 37 25 29 29 17 11 21 24 25

6 14 15 14 H~

6

322

~

39

---------------------- ---------- --------------------------------------

----------------------------------------------------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983

Daily Proportion Cumu1 Prop Date South North Total of Total Cumulative of Total

64 7 23 30 1313131 313 013131 65 44 187 231 00137 261 01308 66 12 162 174 01305 435 01313 67 8 283 291 1313139 726 01322 68 0000 726 13022 69 3 221 224 013137 950 13029 610 26 245 271 131308 1221 13037 611 56 254 310 131310 1531 131347 612 44 736 780 013 24 2311 13071 613 64 1188 1252 01339 3563 01113 614 59 1752 1811 0056 5374 0166 615 97 844 941 01329 6315 0195 616 165 729 894 0028 7209 0223 617 151 i 604 1755 0054 8964 middot 0277 618 i ll 1524 1635 0051 10599 13328 619 175 2000 2175 0067 12774 13395 620 171 21320 2191 0068 14965 0463 621 220 1613 1833 0057 16798 0520 622 199 2065 2264 0070 19062 0590 623 362 21334 2396 0074 21458 13664 624 876 3403 4279 13133 25737 0797 625 1244 2023 3267- 0101 29004 0898 626 738 1601 2339 0073 31343 0971 627 573 3265 3838 0119 35181 1090 628 547 1868 2415 0075 37596 1165 629 528 4028 4556 0141 42152 1306 630 430 430 0013 42582 1319 71 240 240 01307 42822 1326 72 201 975 1176 0036 43998 1362 73 309 8842 9151 0284 53149 1646 74 475 6385 6860 0213 60009 1859 75 565 3342 3907 0121 63916 1980 76 1377 2094 3471 0108 67387 2088 77 1416 3173 4589 0142 71976 2230 78 1472 1420 2892 0090 74868 2320 79 2071 1452 3523 01113 78391 2430 710 3318 2434 5752 0178 84143 2608 711 2673 2866 5539 13172 89682 2780 712 1665 1747 3412 13106 93094 2886 713 21317 1951 3968 13123 97062 3009 714 2991 2664 5655 0175 102717 3184 715 2646 2548 5194 13161 107911 3345 716 2488 2886 5374 0167 113285 3512 717 1585 4063 5648 0175 118933 3687 718 3559 9326 12885 0400 131818 4087 719 2948 2398 5346 13166 137164 4253 720 1640 3330 4970 0154 142134 4407 721 2416 6420 8836 0274 150970 4681 722 3298 3298 0102 154268 4783 723 5007 5007 0155 159275 4938

40

--------------------------------------------------------------------

--------------------------------------------------------------------

-----------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983 (Continued)

Daily Proportion Cum Prop Date South North Total of Total Cumu1at i ve of Total

724 4005 7804 11809 0366 171084 5304 725 2453 3392 5845 0181 176929 5485 726 2166 12094 14260 0442 191189 5927 727 1914 4472 6386 0198 197575 6125 728 1603 3463 5066 0157 202641 6282 729 1251 1914 3165 0098 205806 6380 730 1710 2495 4205 en30 210011 6510 731 2542 1887 4429 0137 214440 6647 81 4479 2271 6750 0209 221190 6856 82 1103 1806 2909 0091 224099 6947 83 1719 942 2661 0083 226760 bull 7030 84 1519 2557 4076 0126 230836 7156 85 1259 1113 2372 0074 233208 7230 86 940 2189 3129 0097 236337 7327 87 1467 4354 5821 0180 242158 7507 88 2318 1584 3902 0121 246060 7628 89 2098 1505 3603 0112 249663 7740 810 2629 1517 4146 bull 0129 253809 7869 811 3753 1091 4844 0150 258653 8019 812 1489 523 2012 0062 260665 8081 813 744 353 1097 0034 261762 8386 814 981 981 bull 0030 262743 8145 815 2324 2324 0072 265067 8217 816 2638 2638 0082 267705 8299 817 2073 731 2804 0087 270509 8115 818 2244 675 2919 0091 273428 8477 819 3240 696 3936 0122 277364 8599 820 2363 503 2866 0089 280230 8688 821 6789 1111 7900 0245 288130 8933 822 6489 563 7052 0219 295182 9152 823 5077 298 5375 0167 300557 9319 824 2616 298 2914 0090 303471 9409 825 3933 412 4345 0135 307816 9544 826 1393 554 1947 0060 309763 9604 827 1203 463 1666 0052 311429 9656 828 1197 542 1739 0054 313168 9710 829 1244 221 1465 0045 314633 9755 830 1011 199 1210 0038 315843 9793 831 718 214 932 0029 316775 9822 91 1324 318 1642 0052 318417 9874 92 1362 307 1669 0052 320086 9926 93 1146 314 1460 0045 321546 9971 94 652 296 948 bull 0029 322494 10000

148465 174029 322494 10000

41

----------------------------------------------------------------------

-------------------------------------------------------------------- --

------

TABLE 3A Unalakleet River Species Apportionment by Test Period King Salmon 1983

3-Day App Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 76 0272 76 0272

69-612N 28 0100 104 0372

612N-615 461 1652 565 2024

616-619N 419 1502 984 3526

619N-622 170 0609 1154 4135

623-626N 722 2588 1876 6723

626N-629 264 0946 2140 7669

630-73N 103 0639 2243 8038

73N-76 188 0674 2431 8712

77-710N 0 0000 2431 8712

710N-713 0 0000 2431 8712

714-717N 267 0957 2698 9969

717N-720 0 0000 2698 9669

721-724N 92 0331 2790 1 0000

724N-727 0 0000 2790 10000

728-731N 0 0000 2790 1 0000

731N-83 0 0000 2790 1 0000

2790 10000

42

Dates

714-717N

717N-720

721-724N

724N-727

728-731N

731N-83

84-87N

87N-810

811-814N

814N-817

818-821N

821N-824

825-828N

828N-831

91-94

TABLE 3B Unalakleet River Species Apportionment by Test Period Coho Salmon

3-Day Count

583

338

436

550

2650

1174

793

1435

5074

1280

435

2265

171H3

1983

Proportion of Season Total

0000

0000

0000

0343

0199

0256

0323

1558

0690

0466

0843

2983

0752

0256

1331

Cumulative Count

583

921

1357

1907

4557

5731

6524

7959

13033

14313

14748

17013

Cumulative Proportion

0000

0000

0000

0343

0542

0798

1121

2679

3369

3835

4678

7661

8413

8669

10000

43

------------------------------------------------------------------

------------------------------------------------------------------

----- ------

TABLE 3C Unalakleet River Species Apportionment by Test Period Pink Salmon 1983

3-Day P roport ion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 0 0000

6l2N-615 0 0000

616-6l9N 97 0012

6l9N-622 332 0036

623-626N 1245 0136

626N-629 6624 0721

630-73N 3699 0403

73N-76 10762 1171

77-7l0N 7704 0838

710N-7l3 8529 0928

714-717N 9771 1063

717N-720 13845 1507

721-724N 11361 1236

724N-727 6544 0712

728-731N 3545 0386

731N-83 1628 0177

84-87N 1224 0133

87N-810 1777 0193

811-814N 802 0087

814N-817 561 0061

818-821N 533 0058

821N-824 8313 13091

825-828N 468 0051

828N-831 0 0000

91-94 0 0000

91881 10000

0 0000

0 0000

0 0000

97 0012

429 0048

1674 0184

8298 0905

11997 1308

22759 2479

30463 3317

38992 4245

48763 5308

62608 6815

73969 8051

80513 8763

84058 9149

85686 9326

86910 9459

88687 9652

89489 9739

90050 9800

90583 9858

91413 9949

91881 10000

91881 10000

91881 1 0000 44

------------------------------------------------------------------

------------ ------------------------------------------------------

----- ------

TABLE 3D Unalakleet River Species Apportionment by Test Period Chum Salmon 1983

3-Day Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 100 0017

612N-615 268 0046

616-619N 838 0144

619N-622 1180 0202

623-626N 2744 0471

626N-629 1569 0270

630-73N 796 0137

73N-76 2972 0510

77-710N 2068 0355

710N-713 2622 0450

714-717N 4133 0710

717N-720 5596 0960

721-724N 4978 0854

724N-727 8974 1540

728-731N 2241 0385

731N-83 2079 ~0357

84-87N 3009 0516

87N-810 2432 0417

811-814N 937 0161

814N-817 454 0078

818-821N 2584 0443

821N-824 2739 0470

825-828N 1783 0306

828N-831 765 0131

91-94 412 0070

58273 10000 45

0 0000

100 0017

368 0063

1206 0207

2386 0409

5130 0880

6699 1150

7495 1287 f

10467 1797

12535 2152

15157 2602

19290 3312

24886 4272

29864 5216

38838 6666

41079 7051

43158 7408

46167 7924

48559 8341

49536 8502

49990 8580

52574 9023

55313 9493

57096 9799

57861 9930

58273 1 0000

-------------------------------------------------------------

------------------------- ------------------------------------

TABLE 4 Unalakleet River Test Net Proportions by Sample Perio-d 1983 ( Selective CPUE)

Dates Chinook Coho Pink Chum Misc

64-68 105 00 00 895

69-612N 24 00 83 893

612N-615 1C~ 5 00 61 834

616-619N 78 18 156 748

619N-622 23 45 160 772

623-626N 65 112 247 576

626N-629 22 553 131 294

630-73N 16 576 124 284

73N-76 10 572 158 260

77-710N 00 555 149 296

710N-713 00 540 166 294

714-717N 14 00 513 217 256

717N-720 00 00 532 215 253

721-724N 04 00 493 216 287

724N-727 00 18 202 277 503

728-731N 00 23 242 153 582

731N-83 00 30 112 143 715

84-87N 44 98 241 617

87N-810 182 122 167 529

811-814N 139 95 111 655

814N-B17 96 68 55 7B1

B18-B21N 105 39 1B9 667

821N-824 263 43 142 552

825-B28N 145 53 202 600

828N-831 97 00 171 732

91-94 396 00 72 532

46

--------

--------

TABLE 4 Una1ak1et River Test Net Proportions 1983 ( Selective CPUE) (Continued)

Comparative Apportionment

Species Apportionment

Chinook 2790 Coho 17013 Pink 91881 Churn 58273

------shySubtotal 169957

Misc Species 152537 ------shy

Total 322494

Substrate Comparison -------------------shy

Bank Counts -----shy

South 148465 North 174029

------shy

Total 322494

Percent of Total Counts

09 53

285 181

5408

472

1000

Percent

460 540

1000

47

-------------------------------------------------------------------

TABLE 5A Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

May 27 28

21 5 482

13 13

1313

1313 21 5 697

13 13

1313

1313 30 240 0 013 937 0 00 31 246 2 41 1183 2 08

June 1 237 0 00 1420 2 07 2 3

256 585

13 13

013 bull 13 13

1676 2 261

2 2

6bull 13 4

5 6 8

160 120 middot 125

13 1

13 42 130

2 421 2541 2666

~ 2 3 3

bull 13 4 136 136

9 122 0 130 2788 3 05 11 117 00 2905 3 05 12 126 13 00 3031 3 05 13 117 1 43 3148 4 06 15 118 0 013 3266 4 136 16 116 1 43 3382 5 138 18 240 13 130 3622 5 07 19 121 0 00 3743 5 07 20 116 0 00 3859 5 136 22 118 1 42 3977 6 138 23 119 1 42 4196 7 08 25 240 0 013 4336 7 138 26 119 13 1313 4455 7 138 27 119 13 1313 4574 7 138 29 1213 13 130 4694 7 137 313 1213 13 00 4814 7 07

July 2 238 0 1313 51352 7 07 3 118 13 013 51713 7 07 4 118 1 42 5288 8 138 6 122 0 00 5410 8 07 7 116 13 00 5526 8 07

10 126 0 1313 5652 8 07 11 119 0 013 5771 8 07 13 116 13 130 5887 8 07 14 119 2 84 6006 10 07 17 122 0 00 6128 10 07 18 112 0 1313 6240 10 136 20 119 13 00 6359 10 06 21 112 0 013 6471 10 06

6471 10

48

------------------------------------------------------------------

------------------------------------------------------------------

TABLE 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983

Cum Cum Date Hours Catch CPUE Hours Catch CPUE

July 24 26

115 120 0 00

115 235

0 0

00

00 27 117 4 00 352 0 00 29 117 0 137 469 4 34 31 116 3 103 585 7 48

August 2 122 0 00 706 7 40 3 122 2 66 828 9 43 5 118 1 34 946 10 42 7 128 14 437 1074 24 89 9 257 14 218 1331 38 114

10 125 21 672 1456 59 162 12 13 middot- 0 00 1469 x 59 161 14 10 7 12 449 1576 71 180 16 122 2 66 1698 73 172 17 123 6 196 1821 79 174 19 118 1 34 1939 80 165 21 112 6 214 2051 86 168 23 120 3 100 217 1 89 164 24 115 2 70 2286 91 159 26 115 5 174 2401 96 160 28 119 0 00 2520 96 152 30 119 4 1 34 2639 100 152 31 117 1 34 2756 101 147

Sept 2 123 5 33 2879 106 147 4 479 15 125 3358 121 144 6 238 11 185 3596 132 147 7 237 5 84 3833 137 143 8 238 6 1 01 4071 143 141 9 242 10 1 65 4313 153 142

10 242 3 50 4555 156 137 11 242 2 33 4797 158 132 12 241 8 133 5038 166 132 14 227 14 247 5265 180 137 15 242 9 149 5507 189 137 16 210 3 57 5717 192 134 17 239 2 33 5956 194 130 18 230 2 35 6186 196 127 20 489 4 33 6675 200 120 21 24 3 50 6915 203 117 22 242 0 00 7157 203 113 23 234 1 17 7391 204 110

----shy

7391 204

Mesh size = 5 14 from 724 to 810

49

------------------------------------------------------------------

TABLE 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE ------~-----------------------------------------------------------June 16 122 1 33 122 1 33

17 118 0 bull 0 0 240 1 17 20 120 2 67 360 3 33 21 118 0 00 478 3 25 23 119 2 67 597 5 34 24 119 3 102 716 8 45 27 116 19 655 832 27 130 28 120 22 733 952 49 206 30 120 40 1333 1072 89 332

July 1 115 36 1252 1187 125 421 4 122 30 983 1309 155 474 5 114 47 1649 1423 202 568 7 118 30 1016 1541 232 602 8 120 shy 24 800 1661 -$ 256 616

11 122 42 1377 1783 298 669 12 120 29 967 1903 327 687 14 116 37 1276 2019 364 721 15 118 40 1356 2137 404 756 18 121 60 1976 2258 464 822 19 119 30 740 2377 494 831 21 125 61 1952 2502 555 887 22 118 25 847 2627 580 883 25 122 16 525 2749 596 867 26 116 15 517 2865 611 853 28 122 28 918 2987 639 856 29 117 11 376 3104 650 838

August 1 120 7 233 3224 657 815 2 119 9 303 3345 666 796 4 120 3 100 3465 669 772 5 118 5 170 3583 674 752 8 114 7 245 3697 681 734

11 123 7 337 3 82 0 688 720 15 118 2 68 3938 690 701 16 113 5 177 4051 695 686 18 98 3 122 4149 698 673 19 119 1 34 4268 699 655 22 112 0 00 4380 699 638 23 115 0 00 4495 699 622 25 120 2 66 4615 701 606 26 112 1 36 4727 702 594 29 116 0 00 4843 702 580 30 11 5 0 00 4958 702 566

Sept 1 115 0 00 5079 702 553 2 112 0 00 5191 702 541

----shy5079 702

50

-----------------------------------------------------------------

------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

June 5 73 0 00 73 0 00 7 126 0 00 199 0 00 8 127 0 00 326 0 bull 0 0

10 11 4 3 105 440 3 27 12 113 2 71 553 5 36 14 119 1 34 672 6 36 15 116 4 138 788 10 51 17 116 3 103 904 13 56 19 118 6 203 1022 19 74 21 118 0 00 1140 19 67 22 117 10 342 1257 29 92 24 116 3 103 1373 32 93 26 119 11 370 1492 43 115 28 11 8 6 203 1610 $ 49 122 29 115 13 452 1725 62 144

July 1 119 8 269 1844 70 152 3 119 17 571 1963 87 177 5 119 13 437 2082 100 192 6 12 0 17 567 2202 117 213 8 121 7 231 2323 124 214

10 11 4 18 632 2437 142 233 12 115 12 417 2552 154 241 13 116 37 1276 2668 191 286 15 117 16 547 2785 207 297 17 11 8 31 1051 290 3 238 328 19 118 18 610 3021 256 339 20 115 29 1009 3136 285 364 22 122 17 557 3258 302 371 24 115 24 835 3373 326 387 26 120 19 633 3493 345 395 27 117 11 376 3610 356 394 29 117 14 479 3727 370 397 31 116 18 621 3843 388 404

August 2 121 9 298 3964 397 401 3 122 17 557 4086 414 405 5 11 8 8 271 4204 422 402 7 128 19 594 4332 441 407 9 257 10 156 4589 451 393

10 125 14 448 4714 464 394 12 13 1 308 4727 465 393 14 107 5 187 4834 470 389 16 122 4 131 4956 474 383 17 123 15 488 5079 489 385 19 118 8 271 5197 497 383 21 112 3 107 5309 500 378 23 120 6 200 5429 506 373 24 115 7 243 5544 513 370

51

-----------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 (Continued)

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

August 26 115 5 174 5657 518 366 28 119 1 34 577 6 519 359 30 119 4 134 5895 523 355 31 117 0 00 6012 523 3 48

Sept 2 123 3 98 613 5 526 343 4 479 2 17 6614 528 319 6 238 1 17 6852 529 309 7 237 0 00 7089 529 298 8 9

238 242

1 2

17

33 7327 7569

clt

530 532

289 281

10 242 3 50 7811 535 274 11 242 0 00 8053 535 266 12 241 2 33 8294 537 259 14 227 3 53 8521 540 253 15 242 0 00 8763 540 246 16 210 1 19 8973 541 241 17 239 2 33 9212 543 236 18 230 0 00 9442 543 230 20 489 0 00 9931 543 219 21 240 2 33 10171 545 214 22 242 0 0 10413 545 209 23 234 0 00 10647 545 205

----shy

10647 545

52

------------------------------------------------------------------------

------

TABLE 6A Unalakleet River Sonar Site Drift Sets5 1 4n Me sh 19 83 bull

Date Time Result

July 19 1405-1413 1 burbot July 23 1040-1055 1 pink caracass July 27 1520-1530 1 coho August 3 1444-1501 4 coho August 22 1930-1937 0 August 23 937-943 1 coho 1 pink carcass August 26 1117-1127 1 coho 3 churn August 31 1018-1034 3 churn

TABLE 6B Unalakleet River Sonar Site Beach Seines 1983

Date Time Distance Result

July 20 1445 120 meters 4 pink 1 churn 13 Dolly Varden 1 whitefish

July 25 1500 120 meters 6 pink 1 churn 1 Dolly Varden 4 whitefish 1 grayling

July 28 1700 120 meters 4 coho 2 pink 2 churn 1 Dolly Varden

August 1 2010 300 meters 4 pink 3 churn 8 Dolly Varden

August 4 1015 130 meters 5 coho 3 pink 3 churn 65 Dolly Varden 3 whitefish 3 grayling

August 24 1110 130 meters 18 coho 2 Dolly Varden 2 grayling

August 29 1715 120 meters 11 coho 1 pink 69 churn 1 Dolly Varden 2 grayling

Seine done at mile 12 Unalakleet River

53

--------------------------------------------------------------------------------------------------

--------------------------------------------------------------------------------------------------

TABLE 7 AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER CATCH SAMPLE SPORT CATCH AND SPAWNING SURVEYS 1983

II

COMBINED 3-2 4-2 4-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 31 646 6702 5 104 5010 8 167 5688 1 21 5900

Female 17 354 8540 o o 1 21 5450 o o

Total 48 1000 7353 5 104 5010 9 188 5661 1 21 5900

~ 11)

5-2 6-2 7-2 7-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 11 229 7382 6 125 8350 0 0 0 0

Female 2 42 7925 12 250 8742 1 21 10650 1 21 8350

Total 13 271 7465 18 375 8611 1 21 10650 1 21 8350

TABLE 8A AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER TEST NET SAMPLE 1983

-----~-------------------------------------------------------------------------------------------------------

gt

COMBINED 4-2 5-2 5-3 6-2 7-2 NO LENGIH NO LENGIH NO LENGIH NO LENGTH NO LENGTH NO LENGTr

8 14 n

Male 3 333 8107 0 1 111 5800 o 0 2 222 9260 0 0 Female 6 667 8295 0 0 1 111 7600 o o 4 444 8310 1 111 8930 Total 9 10 e 0 8232 0 o 2 222 6700 o o 6 667 8627 1 111 8930

If) If)

5 14 Male 19 1000 6298 12 632 5392 4 211 6990 0 o 3 158 8997 0 0 Female o 0 o o o o o o 0 0 0 0 Total 19 1000 6298 12 632 5392 4 211 6990 o o 3 158 8997 0 0

4 n or Smaller Male 6 667 5930 1 111 4660 2 222 6325 3 333 6090 0 o 0 o Female 3 333 8970 o o o o o o 3 333 8970 0 o Total 9 1000 6943 1 111 466 2 222 6325 3 33 3 6090 3 33 3 8970 0 0

TOTAL Hale 28 757 6413 13 351 5336 7 189 6630 3 8 1 6090 5 13 5 9102 o 0 Female 9 243 852 o o 1 27 7600 o o 7 189 8593 1 2 7 8930 Total 37 1000 6925 13 351 5336 8 216 6751 3 8 1 6090 12 324 88 e 5 1 2 7 8930

---------------------------------------------------------------------------------------------------------

---------------------------------------------------------------------------------------------------------

TABLE 8B AGE SEX AND SIZE COMPOSITION OF NORTON SOUND COHO SALMON UNALAKLEET RIVER TEST NET SAMPLE 5 14 AND 5 78 GEAR 1983

COMBINED 3-2 4-3 4-4 5-4 NO LENGIH NO LENGIH NO LENGTH NO LENGIH NO LENGTH

Male 9 900 5489 0 0 9 900 5489 0 0 Female 1 10 bull 0 552 QJ QJ 0 1 10QJ 5520 0 0 Total 10 1000 5492 0 0 10 1000 5492 0 0 725-731

bull LI)Male 15 938 5645 15 938 5645 Female 1 62 575 QJ 1 62 575 QJ Total 16 lQJ0QJ 5651 16 100QJ 5651 81-87

Male 24 545 5668 23 523 5768 1 23 3350 Female 20 455 5631 20 455 5631 0 0 Total 441QJ0QJ 5651 43 977 57 QJ 4 1 23 335 QJ 88-814

Male 7 500 5797 7 500 5797 QJ 0 Female 7 500 5596 6 429 5587 1 71 5650 Total 14 1000 5696 13 929 1 71 5650570 815-821

Male 5 455 5492 5 455 5492 Female 6 545 5552 6 545 5552 Total 11 lQJ00 5525 11 100QJ 5525 822-828

Echoes from fish passing through the beam are reflected to the transducer The systems electronics interpret the strength and number of the echoes and tally fish counts

Two Bendix side-scan counters 1981 models were used on the Unalakleet River The respective 60-foot tubular aluminum substrates were deployed from opposite banks of the Unalakleet River Both substrates were positioned so there was at least two feet of water over the sonar beam that is projected immediately above the substrate that is two feet over the transducer housing and seven feet over the target end of the substrate It was found that three feet of water was needed as a buffer to eliminate debris counts due to wind ripples flotsam and sudden water level changes A small weir _ was placed to prevent fish passage inshore from the transducer on both sides of the riverThe substrates were not located directly opposite each other The north bank substrate was located 400 feet upstream from the south bank substrate which was placed in a nearly ideal river bottom profile Unfortunately mud shallows were opposite the south bank During the season fish behavior necessitated movement of the north bank substrate to a site 300 feet downstream of the south bank substrate

The river width at this site is approximately 200 feet The deepest channel is located about 80 feet from shore at the north bank substrate and about 100 feet from shore at the south bank substrate Although one-third of the river is isonified by the sonar beams if fish follow a depth contour then more than two-thirds of the possible fish paths would be covered by the sonar counters

The substrates were moved several times during the summer because of water level changes or for cleaning The substrates were guyed to two dead men each in the form of buried logs held in place with fence posts Stainless steel aircraft cable fastened to each end of the substrate was attached to respective dead men on shore

The cables were roughly parallel and adjusted to hold the substrate perpendicular to shore The inshore cable was long enough to allow the substrate to remain perpendicular to shore even though it might be moved 15 feet from shore The easiest method of movement of the substrate was to use the hydrodynamic shape of the substrate to raise itself and push against the substrate with a handy man jack The inshore footing could then be relocated with a minimum of

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effort

Although the current at the sonar site was insufficient to raise the tube to the surface it did help in pulling it up to a point where it could be cleaned

Calibration (a comparison of oscilloscope fish counts and sonar fish counts) was scheduled four times daily on both banks The magnitude of the fish milling problem compounded by slow fish passage made this schedule impractical much of the summer Calibration was attempted when usable results seemed impossible it was not attempted at extreme rates of fish passage Calibration was done by comparing echoes on a Tektronix 221 oscilloscope with counts of the sonar counter Salmon passing through the sonar beam produce a distinctive oscilloscope trace A count of 100 fish within 30 minutes the maximum calibration period was required before resetting the sonar fish velocity controls

agreement = Sonar computer count Oscilloscope count

The agreement was then used to adjust the daily counts Agreement of less than 1 indicates the sonar was undercounting and greater than 1 indicates overcounting

When the count agreement varied more than 15 then the following equation was used to derive a new fish velocity

agreement x existing velocity = new velocity

Milling fish became a problem on June 28 on the north bank when slow migrating and milling pink salmon oscars started riding the substrate turbulence wave Based on counting tower observations it was determined that all sixteen sectors were affected On July 1 and 2 the substrate was moved approximately 700 feet downstream to the base of a small cliff with somewhat faster water velocity Pink salmon began riding the substrate at the new site within hours Oscars were not a problem on the south bank during this time therefore in order to estimate the passage on the north bank the average hourly passage rate (percent per hour of the daily total) of the preceding three day period of the south bank was used to calculate daily totals for the

-4shy

north bank based upon hours which were not apparently effected by oscars

Total of Preceding 3-day valid hourly sum of daily

Daily total--North = counts--north x counts--South Total of corresponding hourly counts for preceding 3 days--south

After two weeks of attempting to deal with milling fish the following policy was decided on The sonar beam was raised slightly so that a strong target was seen in the four degree mode but a decrease in target strength was barely apparent in the two degree mode The offshore end of the substrate was moved middotfive feet downstream from the perpendicular placement used earlier The beam was extended as far as possible beyond the target These measures seemed to eliminate fish avoidance of the substrate as a problem

Other milling problems were not satisfactorily resolved Salmon moving downstream were not counted by the sonar but those same fish moving upstream could be counted by the sonar It was decided to invalidate an hourly count if milling fish were observed from a tower or oscilloscope or if sonar criteria were not met Disqualifying sonar criteria were hourly debris checks or a large fish count over 15 The large fish count indicated fish moving over the substrate in a tight school which was characteristic of milling behavior King salmon in the Unalakleet did not seem to reflect a long enough signal to register as large fish however two or three small salmon could register if they were close to the same distance from the transducer and spaced in an overlapping manner

Records of changes in counter settings river conditions and other unusual occurrences were also used in adjusting daily sonar counts

The large fish counter on the 1981 model sonar counter was ignored except as an index of milling fish

Test Fishing

The same test fishing site as in 1981 and 1982 was used during the 1983 season

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The ten fathom 8 14 gillnet was set from May 27 to May 31 A twenty fathom 8 14 gillnet was set on June 1 and fished until June 4 From June 5 to September 4 the period of sonar operation a rotating schedule of twelve hour time blocks over a period of three days was used The nets used included

1 20 fm 8 14 mesh 2 25 fm 5 14 mesh (June 5-August l025 fm 5 78

mesh (August II-September 4) 3 25 fm 4 mesh 4 15 fm variable mesh

The 25 fm 5 78 mesh gillnet was fished from September 5 to September 25 The 8 14 mesh net and the v~riable mesh net were fished concurrently The three-day rotation schedule allowed each net to be fished during one 12-hour high tidedaylight period and one 12-hour low tidenight period Nets were rotated at 0900 and 2HJ0 daily The 8 14 mesh net was removed from the rotation on July 21 because the chinook migration was completed

The CPUE (catch100 fm-hr) was calculated for the two most efficient nets for each species to be used in apportioning sonar counts These CPUEs for chinook coho pink chum and other species presumably detectable by sonar were totaled and the species CPUE divided by the total CPUE for all species to give the percent of the periods sonar counts to each specie The seventh day of the week was apportioned by using the previous 3-day proportions for one half of the counts and the following 3-day proportions for the second half of the counts

Test net data (Tables 5A 5B 5C and 5D) was calculated for the single most effective net for each species for separate analys is

Weights lengths and scale samples were taken from all chinook coho and chum captured Pink salmon were counted only Tissue samples were taken from test net chinook salmon for electrophoretic studies coordinated by the Stock Separation Section of the Commercial Fisheries Division

Counting Towers

Counting towers were erected immediately adjacent to the

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onshore end of each substrate (Figure 2) As in 1982 the use of visual tower counts for comparison with sonar counts could not be relied upon due to river width surface disturbances etc however several short comparisons were possible The towers proved invaluable in determining the presence of moribund fish debris passage presence of oscars fish swimming behavior etc The 1983 low river level and generally less turbidity as compared to 1982 allowed more rapid and concrete identification of the milling fish Without use of the tower the severity of the milling fish problem may not have been discovered

Drift SetsBeach Seines

Drift sets and beach seines were done for comparison with test net species apportionment and to determine fish passage beyond the sonar counting range Drjft sets were accomplished by drifting a 25 fm 5 14 gillnet perpendicular to the shore The 25 fm net allowed the major portion of the river to be fished thus only one drift was done per set as opposed to 1982 when a drift set was done near each bank Set durations ranged from 5 to 17 minutes dependent upon boat traffic wind conditions etc Drift sets were done on July 19 23 and 27 and August 3 22 23 26 and 31

Beach seines were accomplished by using a 25 fm 3 mesh seine immediately downstream of the south bank substrate Shoreline conditions prevented se1n1ng near either north bank site Beach seines on the south bank were done on July 20 25 and 28 and August 1 and 29 Beach Unalakleet River were done on August 4 and levels prevented seining from August 4 to

seines 24

24

at High

mile 12 water

Riyer Surveys

Two river surveys were attempted during 1983 A jet boat was taken up the North River on July 29 This proved to be early for carcass sampling but weather and equipment problems prevented a later survey

A float trip of the Old Woman and upper Main River was also made A plane landing mishap greatly reduced the scope of this trip Weather prevented any follow up work

Subsistence Surveys

A daily survey of three to five sUbsistence fishermen is

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made from the time the first king salman is caught early in June through the remainder of that month These people must be trustworthy conscientious about checking their nets and fairly successful The average daily catch is compared to the previous day to develope the annual trend and the total catches and the annual trend is compared to past years Commercial catch and effort data and the up-river test net data are used in conjuction with the subsistence catch to anticipate strategies

future catches and management

During late September made of Unalakleet

an The

extensive door to door survey is Annual Management Report covers

subsistence surveys in detail

RESULTS

~istence Survey

The Unalakleet subsistence survey made in late September interviewed 74 subsistence fishermen 68 of whom fished in the river and 17 who fished in the ocean The catch was predominantly from the river with 1480 king 6311 coho 13458 pink and 4124 chum salmon reported The ocean subsistence catch was 388 king 577 coho 350 pink and 277 chum salmon

The mean chinook salmon catch per fisherman peaked on June 16 This compares with July 3 in 1982 and June 19-22 in 1981 All subsistence fishermen surveyed in 1983 were fishing within one mile of the river mouth

Chinook subsistence survey results are presented in Table 1 and Figure 3 As in 1981 and 1982 the variances in nets fishing times and net locations call for calculation of mean catch per fisherman as opposed to catch per unit effort

Sonar

During the period from June 4 to September 4 the final sonar count was 322494 148465 (460) counts were tallied on the south bank and 174029 (540) counts were tallied on the north bank

The daily sonar counts (Table 2) were adjusted by the test net proportions (Table 4) to give the following escapement estimates for the period June to September 4

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Species Total Count LQf Total

Chinook 2790 09 Coho 17013 53 Pink 91881 285 Chum 58273 181 Other 152537 AL2

322494 1000

Tables 3A 3B 3C 3D and 4D present this data by 3-day sample period Based on discussions with Al Menin and Dave Gaudet about the ability of sonar counters to discriminate between various target shapes and sizes any fish two and one half pounds or laterally compressed fish ~f one pound or larger could be counted by a sonar calibrated for pink salmon Fish other than salmon considered countable by the sonar counter included arctic char grayling burbot and broad humpback and Alaska whitefish

Peak adjusted apportioned sonar counts were on June 23 for chinook August 21 for coho July 18 for pink and July 25 for chum salmon (Tables 3A 3B 3C and 3D Figures 4A 4B 4C and 4D)

Representative passage rates on the south bank by sector and by hour for July 3-5 and August 21-23 are presented in Figures 6 and 7 These periods were chosen because of minimal adjustments to raw counts north bank counts are not presented due to lack of relatively clean data for those periods

Test Fishing

A total of 19 chinook (74 male - 26 female) 294 coho (61 male 39 female) 1156 pink (52 male - 48 female) and 915 chum (54 male - 46 female) was captured from May 27 to September 23 The fish were sampled and delivered to Hartha Nanouk a local subsistence fisherman as per agreement for the use of her traditional set-net site

Based on the single most effective test net CPUE the chinook migration did not peak as such but rather showed most consistent catches on June 22 and 23 coho migration peaked from August 10-14 pinks from July 18-22 and chum on July 13

-9shy

Comparisons of daily CPUE and cumulative CPUE for all salmon species are presented in Tables SA 58 5C and 5D and Figures 8 thru 15 Of interest although not as useful for annual comparison due to different test net methods net mesh sizes fishing time etc the actual fish caught from 1981 to 1983 are

~ 1982 un 41 chinook 39 chinook 39 chinook

107 coho 310 coho 294 coho 1463 pink 5114 pink 1156 pink

722 chum 375 chum 915 chum

f

Age Sex and Size Composition of Test Net Catches

An age analysis of scales collected during the project indicated the following age compositions king salmon all gear sizes (4-2131 5-2 22~ 5-3816-23217-2 3) coho salmon 5 14 and 5 78 gear (3-2 051 4-3 981 4-4 051 5-4 l) chum salmon 5 14 and 5 78 gear (3-1 21 4-1 611 5-1 37) Tables 7 thru 9D show the age composition of the various species broken down by date and the mesh sizes used during the project

Counting Towers

As cited visual tower counts could not be made on the Unalakleet River due to river width surface disturbances turbidity etc However visual observations proved invaluable in identifying spawning behavior etc and resulted in the downstream relocation of the north bank substrate and development of the method used to adjust north bank sonar counts

Drift SetsBeach Seines

Tables 6A and 68 present the results of drift sets and beach seines respectively Drift set results indicate that the portion of the river not isonified was not used by migrating salmon ie the species most countable coho pink and chum salmon would seem to follow the banks and were counted by the side-scan sonar

Beach seines proved useful in verifying the high presence of

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species other than salmon the relative abundance of coho salmon in August and the presence of spawning churn salmon in the south bank substrate area

Riyer SurveysAerial SurVeys

On July 29th 32 miles of the North River were surveyed by a two-person crew for the purpose of counting live chinook and sampling chinook carcasses A total of 166 live chinook were counted and 3 chinook carcasses were sampled with approximately half of the chinook counted between mile 25 and mile 32

Originally the Old Woman River survey was to be a six-day trip Due to the damage the plane suffered dropping the first crew member off the second member and support gear was not av~ilable for the survey as planned~ The survey of the Old Woman River August 6-8 counted 60 king salmon but only four samples were collected Weather prevented the survey of the main river

King Salmon Spo rt Fish Survey

A sport fishing lodge on the Unalakleet River is responsible for the majority of the sport fishing effort Periodic surveying of lodge personnel indicates that a fair quantity of king salmon are harvested by sport fishing A quantitative survey was not done however due to limited time available A total of 43 chinook was sampled from sport fishing catches

DISCUSSION

River levels were lower than normal during the spring of 1983 due to the lack of snow accumulation the previous winter The Unalakleet River cleared early and became quite low during late June and early July The low water allowed the counting towers at the sonar site to be used during calm survey days which wasnt possible during 1982

Tower observations made as early as June 28 showed serious milling problems at the north bank sonar site The sonar was moved to a new site on July 2 Milling fish were still a considerable problem at the new site but about half the hourly count were considered acceptable during mid-July Milling salmon were a problem through most of the field season Milling salmon of all four species were observed

-11shy

during the latter half of each respective migration Pink salmon presented the worst problem and churn the least Unfortunately milling pinks invalidated the churn count since the two runs overlap Coho salmon exhibited some milling but an accurate evaluation of this problem was hampered by turbid water Milling coho became a problem after August 20

The milling observed from the towers was not apparent to the observer at the oscilloscope because of the overwhelming number of spikes present at that stage of the salmon migration During 1982 when tower observations were not possible the oscilloscope appeared to have an extraordinary number of spikes The large pink salmon count recorded in 1982 may have been an artifact of milling behavior that was unobservable then Commercial catch and test net catch statistics indicate a large pink salmon run f However it is likely fish milling over the substrate exaggerated the sonar count although without tower observations it can not be proven

Another problem observed during the 1983 field season was avoidance of the substrate by all fish species This problem was at its worst when water was low and clear Angling the substrate slightly downstream as it was after July 15 helped considerably By extending the sonar beam periodically it was determined that as visibility decreased so did avoidance

Species apportionment of the sonar count was done using test net catches Some of the problems encountered with the sampling scheme should be pointed out Test nets were assumed to sample the same portion of the river as the sonar Since three net lengths were used this seemed suspect Different species migrate at different depths The non-salmon species tend to migrate in shallow water near shore and generally the larger species migrate in deeper water nearer mid-stream Since only a IS-fathom net of the most efficient type for non-salmon species was fished in the preferred habitat for these fish it is likely that the calculated efficiency was too high The other test nets were longer and also sampled some preferred areas for the targeted species

The opposite case is true for king salmon The 8 14 net is 20 fathoms longS fathoms shorter than the other nets used on this project This net does not cover all of the area preferred by king salmon This means king salmon

-12shy

escapement is probably underestimated but the 20 fathom net samples an area further out than the sonar counter even with its beam extended So the number of king salmon counted by the sonar is over estimated King salmon make up such a small percentage of the total salmon run that counting errors are more significant than this apportionment error

Very few churn and pink salmon were caught in the offshore end of the nets It is assumed these long nets had very little effect on the sonar count species apportionment

CONCLUSION

The feasibility of counting salmon in the Unalakleet River using side-scanning sonar is unlikely due to milling fish and the inal1ility to accurately apportion the sonar count to the various fish species It is possible that a partial escapement count could be made further up river above one or more of the major tributaries to the system The new north bank sonar site that showed some improvement over the former site had two differences that seemed to affect salmon migration The current was faster over the substrate at the second site and the river gravels were less ideal spawning habitat The new site was located below a rock bluff on the outside of a river bend

There are two similar sites up river about ten miles where the current is faster and the bottom is even less conducive to spawning During the 1984 field season a comparison of the smoother running south bank site and these up-river sites could be made The best time to do this would be during August when only coho salmon are migrating The counter should be operating by August 15 prior to milling activity and maintained for a week to evaluate if milling salmon became apparent later after the migration peaked The south bank site could be used as a control for comparison to 1983

-13shy

I I

5 1 2

Miles No tt h _

shy

R Iv er

Figure 1 Unalakleet Escapement Project

lt

Son sr

Fig u r e 2 S 0 0 a r Sit eSc hem a tic

ITower

Original Ninth Bank Sonar

Drift sets 5 minutes

Lf)

So t h Ban k Son a

lTower

o Work Tent

B Living Quarters

Figure 3Unalakleet Subsistence Survey 1983

Kin g- S a I m 0 n

1bull

10

9

c 8aI

-lE 11 t a til 7 ~ II 6 ~ U

5 til

0

c 4 til til

E 3 I

1 V

~ 2

1

27 1 5 10 15 20 25 30

~ June

Figure 4A Specie apportionment king salmon Un-alakleet sonar 1983

~

25

-l20

c 1 5 III () III

11

10

5

I

J

27 31 5 10 15 20 25 30 5 10 15 20 25 31

June Ju Iy

Figure 4B Specie middotapp~~tionment coho salmon Unalakleet sonar 1983

30

25

co ~

20

1 t~

C $

u 1 5 CD a

10

5

5 10 15 20 25 31 5 10 15 20 25 31 5

Ju August Sept e

Figure 4C Specie apportionment pink salmon Unalakleet sonar 1983

1 6

1 5

14

1 3

12

1 1

c II U CII

Ashy

10

9

a

7

01 ~

6

5

4

3

2

1

1 5 10 1 5

June

2 O 25 30 5 10 15 20

Ju Iy

25 31 5 10 15 20

August

25 31 5 10

Septem

Figure 40 Species apportionment chum salmon Unalakleet sonar 1983

16

1 5

1 4

13

1 2

1 1

10

9 c 8GI U

GI middot7 A

6

5

4

3

2

1

~

o N

~

1 5 10 15 20 25 30 5 10 15 20 25 3 1 5 10 15 20 25 31 5 10

June Ju Iy August Sept e

Figure 5 Specie apportionment Unalakleet sonar 1983

50

4

40

35

c J 30 0 U

~ 0 25 0 c Q)

u ~

Q) 20a

15

10

5

o L-_lt---__

King Coho Pink Chum Misc

21

----

Figure 6 Sector distribution of counts Unalakleet sonar1983

35

30

25

c 20 G)

() G) 15

0

10

5

35

30

25 c G)

() 20

G)

0 15

10

5

( s ()u t h ban k )

July 3-5

~-2 4 6 8 1 0 1 2 1 4 1 6shy

Sector

August 21-23

2 4 6 8 10 12 14 16

Sector

22

Figure 7 Hourly distribution of counts Unalakleet sonar 1983

(south bank)

14

12

10

c 8 GI U ~

6

July 3-5

~GI

I =~ Q

4

2 0

2 4 6 8 10 12 14 1 6 18 20 22 24

TIme

9

8

7

6

5 c GI U ~ 4 GI

Q

3

2

August 21-23

1

0

2 4 6 8 10 12 14

TIme

16

23

18 20 22 24

Figure 8 Unalakleet River Test Fishing Daily King CPUE in 8 14 mesh 1983

10

9 N

8 shy

7 I 0 c 6E

n

l J I I

0 0 5 c (J 4 co 0

3

2

1

I I

27 1 5 10 15 20 25 1 5 10 15 20 25 31

~ June July

Figure 9 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1983bull

~

middot10

09 U N

I 08 0 c 07E I ()

- 06 E-0 0 05 shy~ () 04 ca - ()

03E I 0 02

01

27 1 5 10 15 2Q 25 1 5 10 15 20 25 31

June July

Figure 10 Unalakleet River Test Fishing Daily Coho CPUE in 5 78 mesh 1983

1

6

5

I 0

NI II I 0 t

E 4

0 0 c 3() cu 0

2

1

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sept U

Figure 11 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1983

200

175

150

I 0 c 125E I ()

E

r-shy-0 I I N 0 100 c ()-as ()

75E I 0

50

25

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sel ber

20

Figure 12 Unalakleet River Test Fishing Daily Pink CPUE in 4 mesh 1983

18

I

0) N

II

16

I ishy

14 J 0 t 12shyE 0 10 0 shys 8 () as

0 6 1 I V 4

2

~ I

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

--

Figure 13 Unalakleet River Test Fishing Cumulat ive Pink CPUE in 4 mesh 1983

10

9 01 N 8

J 0 J 7 E J 0 6 E- 50 ~

amp 4() ca

0 3 E J

0 2

1

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

Figure 14 Unalakleet River Test Fishing Daily CPUE in 5 14 amp 5 78 mesh 1983

14

13shy

12

11

10

9 J 0 8

I z shy-E 7 0 0 shys ~u aI 0

4 I

31

2

1

II

0 C1)I 11

I I I II

bull y AA(net changed to 5 78

AA A 11 I

~ I~ V ~

- I

VI

1 5 10 15 20- 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

cJune July August

Figure 15 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 14 amp 5 78 mesh 1983

It

5

--l C)

net changed to 5 78

~ 4 o

c E (J ~

3E o o c 2 u ~ -(J

E ~ (J 1

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 16 Unalakleet River Test Fishing Catch Proportions 1983

60

55

---- King50

__ Coho 45

P--Q Pink

40 __ Chum

I LU 35J D I 0

30 ICQ 0 25 I

N Cl0 20

c G)

15u G)

D

10

5 A 1 I

I 4 I

I I

3 lt

~

2

I I1 - I bull I

I ~ ~ ~ t -J ~~ - _

r

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 17 Unalakleet Area Temperatures 1983

18

16

14

12

til 10I

u-G) 80 CI) G) G) 6 C) G)

Q 4

2

C) C)

__ Air

0--0 River 2

0

-2

-4

---------~ ~

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August 5e

4

Figure 18 Unalakleet River Turbidity and Depth 1983

__ Secchi Reading

-t ()

II) G)-G)

3

iE 2

1

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August

~ 1 _ ~ r--- I shy I __ I 01 --shy

Figure 19 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1981-83

27 31 5

May

_1981

____ 1982

o 0 1983 11) C)

Changed to 5 78 mesh

I

t

~-~o-~ Q-O--Oolt)-(IQ-----l

--1

_10 15 20 25 30 5 10 15 20 25 31

June July

I I I

~

0 ~

r E ~

CJ shyE 0 0 I

shyr u-cu CJ

E ~

CJ

4

35

30

25

20

15

10

05

Figure 20 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 78 mesh 1981-83

5

4 lI 0

z

E lI 0 3 E-0 0 2 r CJ-cu 0

E lI 1 0

__1981 ~~

~ ___1982

a 01983 5 148 mesh from 65-810

_----shy-- 0 - -- C1) A - _ - ~

~ I

I

II I I I I I

I I

1

~ -

-

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 21 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 mesh- 1981-83

8

70

60

50

40 0

r 30E

0 20E-0 0 10 s= u 8 tV 0 6E 0 4

2

__1981 ____ 1982

_1983

shy--- -- shy--- shy J - -

I

I

C1- J

I

-----l---l ~--~r---------------r--

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 22 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1981-83

_1981

~ __ 1982

~1983

25

00I _ __ _ _ C)~ I __ _ I

I V o 20 rt I I

E I AshyI o E 15-o o z u 10 tU o E I o 5

I

1 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

July August 5

----------------------------------------------------------------

Table 1 Unalakleet River Subsistence King Salmon Index 1983

Number of Number of Date Fishermen Chinook Average

08 02 18 05 05 00 02 58 92 62 72 72 42 28 52 60 62 20 47 50 35 25 15

June 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Totals

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 4 4 4

4

3 1 7 2 2 o 1

23 37 25 29 29 17 11 21 24 25

6 14 15 14 H~

6

322

~

39

---------------------- ---------- --------------------------------------

----------------------------------------------------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983

Daily Proportion Cumu1 Prop Date South North Total of Total Cumulative of Total

64 7 23 30 1313131 313 013131 65 44 187 231 00137 261 01308 66 12 162 174 01305 435 01313 67 8 283 291 1313139 726 01322 68 0000 726 13022 69 3 221 224 013137 950 13029 610 26 245 271 131308 1221 13037 611 56 254 310 131310 1531 131347 612 44 736 780 013 24 2311 13071 613 64 1188 1252 01339 3563 01113 614 59 1752 1811 0056 5374 0166 615 97 844 941 01329 6315 0195 616 165 729 894 0028 7209 0223 617 151 i 604 1755 0054 8964 middot 0277 618 i ll 1524 1635 0051 10599 13328 619 175 2000 2175 0067 12774 13395 620 171 21320 2191 0068 14965 0463 621 220 1613 1833 0057 16798 0520 622 199 2065 2264 0070 19062 0590 623 362 21334 2396 0074 21458 13664 624 876 3403 4279 13133 25737 0797 625 1244 2023 3267- 0101 29004 0898 626 738 1601 2339 0073 31343 0971 627 573 3265 3838 0119 35181 1090 628 547 1868 2415 0075 37596 1165 629 528 4028 4556 0141 42152 1306 630 430 430 0013 42582 1319 71 240 240 01307 42822 1326 72 201 975 1176 0036 43998 1362 73 309 8842 9151 0284 53149 1646 74 475 6385 6860 0213 60009 1859 75 565 3342 3907 0121 63916 1980 76 1377 2094 3471 0108 67387 2088 77 1416 3173 4589 0142 71976 2230 78 1472 1420 2892 0090 74868 2320 79 2071 1452 3523 01113 78391 2430 710 3318 2434 5752 0178 84143 2608 711 2673 2866 5539 13172 89682 2780 712 1665 1747 3412 13106 93094 2886 713 21317 1951 3968 13123 97062 3009 714 2991 2664 5655 0175 102717 3184 715 2646 2548 5194 13161 107911 3345 716 2488 2886 5374 0167 113285 3512 717 1585 4063 5648 0175 118933 3687 718 3559 9326 12885 0400 131818 4087 719 2948 2398 5346 13166 137164 4253 720 1640 3330 4970 0154 142134 4407 721 2416 6420 8836 0274 150970 4681 722 3298 3298 0102 154268 4783 723 5007 5007 0155 159275 4938

40

--------------------------------------------------------------------

--------------------------------------------------------------------

-----------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983 (Continued)

Daily Proportion Cum Prop Date South North Total of Total Cumu1at i ve of Total

724 4005 7804 11809 0366 171084 5304 725 2453 3392 5845 0181 176929 5485 726 2166 12094 14260 0442 191189 5927 727 1914 4472 6386 0198 197575 6125 728 1603 3463 5066 0157 202641 6282 729 1251 1914 3165 0098 205806 6380 730 1710 2495 4205 en30 210011 6510 731 2542 1887 4429 0137 214440 6647 81 4479 2271 6750 0209 221190 6856 82 1103 1806 2909 0091 224099 6947 83 1719 942 2661 0083 226760 bull 7030 84 1519 2557 4076 0126 230836 7156 85 1259 1113 2372 0074 233208 7230 86 940 2189 3129 0097 236337 7327 87 1467 4354 5821 0180 242158 7507 88 2318 1584 3902 0121 246060 7628 89 2098 1505 3603 0112 249663 7740 810 2629 1517 4146 bull 0129 253809 7869 811 3753 1091 4844 0150 258653 8019 812 1489 523 2012 0062 260665 8081 813 744 353 1097 0034 261762 8386 814 981 981 bull 0030 262743 8145 815 2324 2324 0072 265067 8217 816 2638 2638 0082 267705 8299 817 2073 731 2804 0087 270509 8115 818 2244 675 2919 0091 273428 8477 819 3240 696 3936 0122 277364 8599 820 2363 503 2866 0089 280230 8688 821 6789 1111 7900 0245 288130 8933 822 6489 563 7052 0219 295182 9152 823 5077 298 5375 0167 300557 9319 824 2616 298 2914 0090 303471 9409 825 3933 412 4345 0135 307816 9544 826 1393 554 1947 0060 309763 9604 827 1203 463 1666 0052 311429 9656 828 1197 542 1739 0054 313168 9710 829 1244 221 1465 0045 314633 9755 830 1011 199 1210 0038 315843 9793 831 718 214 932 0029 316775 9822 91 1324 318 1642 0052 318417 9874 92 1362 307 1669 0052 320086 9926 93 1146 314 1460 0045 321546 9971 94 652 296 948 bull 0029 322494 10000

148465 174029 322494 10000

41

----------------------------------------------------------------------

-------------------------------------------------------------------- --

------

TABLE 3A Unalakleet River Species Apportionment by Test Period King Salmon 1983

3-Day App Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 76 0272 76 0272

69-612N 28 0100 104 0372

612N-615 461 1652 565 2024

616-619N 419 1502 984 3526

619N-622 170 0609 1154 4135

623-626N 722 2588 1876 6723

626N-629 264 0946 2140 7669

630-73N 103 0639 2243 8038

73N-76 188 0674 2431 8712

77-710N 0 0000 2431 8712

710N-713 0 0000 2431 8712

714-717N 267 0957 2698 9969

717N-720 0 0000 2698 9669

721-724N 92 0331 2790 1 0000

724N-727 0 0000 2790 10000

728-731N 0 0000 2790 1 0000

731N-83 0 0000 2790 1 0000

2790 10000

42

Dates

714-717N

717N-720

721-724N

724N-727

728-731N

731N-83

84-87N

87N-810

811-814N

814N-817

818-821N

821N-824

825-828N

828N-831

91-94

TABLE 3B Unalakleet River Species Apportionment by Test Period Coho Salmon

3-Day Count

583

338

436

550

2650

1174

793

1435

5074

1280

435

2265

171H3

1983

Proportion of Season Total

0000

0000

0000

0343

0199

0256

0323

1558

0690

0466

0843

2983

0752

0256

1331

Cumulative Count

583

921

1357

1907

4557

5731

6524

7959

13033

14313

14748

17013

Cumulative Proportion

0000

0000

0000

0343

0542

0798

1121

2679

3369

3835

4678

7661

8413

8669

10000

43

------------------------------------------------------------------

------------------------------------------------------------------

----- ------

TABLE 3C Unalakleet River Species Apportionment by Test Period Pink Salmon 1983

3-Day P roport ion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 0 0000

6l2N-615 0 0000

616-6l9N 97 0012

6l9N-622 332 0036

623-626N 1245 0136

626N-629 6624 0721

630-73N 3699 0403

73N-76 10762 1171

77-7l0N 7704 0838

710N-7l3 8529 0928

714-717N 9771 1063

717N-720 13845 1507

721-724N 11361 1236

724N-727 6544 0712

728-731N 3545 0386

731N-83 1628 0177

84-87N 1224 0133

87N-810 1777 0193

811-814N 802 0087

814N-817 561 0061

818-821N 533 0058

821N-824 8313 13091

825-828N 468 0051

828N-831 0 0000

91-94 0 0000

91881 10000

0 0000

0 0000

0 0000

97 0012

429 0048

1674 0184

8298 0905

11997 1308

22759 2479

30463 3317

38992 4245

48763 5308

62608 6815

73969 8051

80513 8763

84058 9149

85686 9326

86910 9459

88687 9652

89489 9739

90050 9800

90583 9858

91413 9949

91881 10000

91881 10000

91881 1 0000 44

------------------------------------------------------------------

------------ ------------------------------------------------------

----- ------

TABLE 3D Unalakleet River Species Apportionment by Test Period Chum Salmon 1983

3-Day Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 100 0017

612N-615 268 0046

616-619N 838 0144

619N-622 1180 0202

623-626N 2744 0471

626N-629 1569 0270

630-73N 796 0137

73N-76 2972 0510

77-710N 2068 0355

710N-713 2622 0450

714-717N 4133 0710

717N-720 5596 0960

721-724N 4978 0854

724N-727 8974 1540

728-731N 2241 0385

731N-83 2079 ~0357

84-87N 3009 0516

87N-810 2432 0417

811-814N 937 0161

814N-817 454 0078

818-821N 2584 0443

821N-824 2739 0470

825-828N 1783 0306

828N-831 765 0131

91-94 412 0070

58273 10000 45

0 0000

100 0017

368 0063

1206 0207

2386 0409

5130 0880

6699 1150

7495 1287 f

10467 1797

12535 2152

15157 2602

19290 3312

24886 4272

29864 5216

38838 6666

41079 7051

43158 7408

46167 7924

48559 8341

49536 8502

49990 8580

52574 9023

55313 9493

57096 9799

57861 9930

58273 1 0000

-------------------------------------------------------------

------------------------- ------------------------------------

TABLE 4 Unalakleet River Test Net Proportions by Sample Perio-d 1983 ( Selective CPUE)

Dates Chinook Coho Pink Chum Misc

64-68 105 00 00 895

69-612N 24 00 83 893

612N-615 1C~ 5 00 61 834

616-619N 78 18 156 748

619N-622 23 45 160 772

623-626N 65 112 247 576

626N-629 22 553 131 294

630-73N 16 576 124 284

73N-76 10 572 158 260

77-710N 00 555 149 296

710N-713 00 540 166 294

714-717N 14 00 513 217 256

717N-720 00 00 532 215 253

721-724N 04 00 493 216 287

724N-727 00 18 202 277 503

728-731N 00 23 242 153 582

731N-83 00 30 112 143 715

84-87N 44 98 241 617

87N-810 182 122 167 529

811-814N 139 95 111 655

814N-B17 96 68 55 7B1

B18-B21N 105 39 1B9 667

821N-824 263 43 142 552

825-B28N 145 53 202 600

828N-831 97 00 171 732

91-94 396 00 72 532

46

--------

--------

TABLE 4 Una1ak1et River Test Net Proportions 1983 ( Selective CPUE) (Continued)

Comparative Apportionment

Species Apportionment

Chinook 2790 Coho 17013 Pink 91881 Churn 58273

------shySubtotal 169957

Misc Species 152537 ------shy

Total 322494

Substrate Comparison -------------------shy

Bank Counts -----shy

South 148465 North 174029

------shy

Total 322494

Percent of Total Counts

09 53

285 181

5408

472

1000

Percent

460 540

1000

47

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TABLE 5A Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

May 27 28

21 5 482

13 13

1313

1313 21 5 697

13 13

1313

1313 30 240 0 013 937 0 00 31 246 2 41 1183 2 08

June 1 237 0 00 1420 2 07 2 3

256 585

13 13

013 bull 13 13

1676 2 261

2 2

6bull 13 4

5 6 8

160 120 middot 125

13 1

13 42 130

2 421 2541 2666

~ 2 3 3

bull 13 4 136 136

9 122 0 130 2788 3 05 11 117 00 2905 3 05 12 126 13 00 3031 3 05 13 117 1 43 3148 4 06 15 118 0 013 3266 4 136 16 116 1 43 3382 5 138 18 240 13 130 3622 5 07 19 121 0 00 3743 5 07 20 116 0 00 3859 5 136 22 118 1 42 3977 6 138 23 119 1 42 4196 7 08 25 240 0 013 4336 7 138 26 119 13 1313 4455 7 138 27 119 13 1313 4574 7 138 29 1213 13 130 4694 7 137 313 1213 13 00 4814 7 07

July 2 238 0 1313 51352 7 07 3 118 13 013 51713 7 07 4 118 1 42 5288 8 138 6 122 0 00 5410 8 07 7 116 13 00 5526 8 07

10 126 0 1313 5652 8 07 11 119 0 013 5771 8 07 13 116 13 130 5887 8 07 14 119 2 84 6006 10 07 17 122 0 00 6128 10 07 18 112 0 1313 6240 10 136 20 119 13 00 6359 10 06 21 112 0 013 6471 10 06

6471 10

48

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TABLE 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983

Cum Cum Date Hours Catch CPUE Hours Catch CPUE

July 24 26

115 120 0 00

115 235

0 0

00

00 27 117 4 00 352 0 00 29 117 0 137 469 4 34 31 116 3 103 585 7 48

August 2 122 0 00 706 7 40 3 122 2 66 828 9 43 5 118 1 34 946 10 42 7 128 14 437 1074 24 89 9 257 14 218 1331 38 114

10 125 21 672 1456 59 162 12 13 middot- 0 00 1469 x 59 161 14 10 7 12 449 1576 71 180 16 122 2 66 1698 73 172 17 123 6 196 1821 79 174 19 118 1 34 1939 80 165 21 112 6 214 2051 86 168 23 120 3 100 217 1 89 164 24 115 2 70 2286 91 159 26 115 5 174 2401 96 160 28 119 0 00 2520 96 152 30 119 4 1 34 2639 100 152 31 117 1 34 2756 101 147

Sept 2 123 5 33 2879 106 147 4 479 15 125 3358 121 144 6 238 11 185 3596 132 147 7 237 5 84 3833 137 143 8 238 6 1 01 4071 143 141 9 242 10 1 65 4313 153 142

10 242 3 50 4555 156 137 11 242 2 33 4797 158 132 12 241 8 133 5038 166 132 14 227 14 247 5265 180 137 15 242 9 149 5507 189 137 16 210 3 57 5717 192 134 17 239 2 33 5956 194 130 18 230 2 35 6186 196 127 20 489 4 33 6675 200 120 21 24 3 50 6915 203 117 22 242 0 00 7157 203 113 23 234 1 17 7391 204 110

----shy

7391 204

Mesh size = 5 14 from 724 to 810

49

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TABLE 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE ------~-----------------------------------------------------------June 16 122 1 33 122 1 33

17 118 0 bull 0 0 240 1 17 20 120 2 67 360 3 33 21 118 0 00 478 3 25 23 119 2 67 597 5 34 24 119 3 102 716 8 45 27 116 19 655 832 27 130 28 120 22 733 952 49 206 30 120 40 1333 1072 89 332

July 1 115 36 1252 1187 125 421 4 122 30 983 1309 155 474 5 114 47 1649 1423 202 568 7 118 30 1016 1541 232 602 8 120 shy 24 800 1661 -$ 256 616

11 122 42 1377 1783 298 669 12 120 29 967 1903 327 687 14 116 37 1276 2019 364 721 15 118 40 1356 2137 404 756 18 121 60 1976 2258 464 822 19 119 30 740 2377 494 831 21 125 61 1952 2502 555 887 22 118 25 847 2627 580 883 25 122 16 525 2749 596 867 26 116 15 517 2865 611 853 28 122 28 918 2987 639 856 29 117 11 376 3104 650 838

August 1 120 7 233 3224 657 815 2 119 9 303 3345 666 796 4 120 3 100 3465 669 772 5 118 5 170 3583 674 752 8 114 7 245 3697 681 734

11 123 7 337 3 82 0 688 720 15 118 2 68 3938 690 701 16 113 5 177 4051 695 686 18 98 3 122 4149 698 673 19 119 1 34 4268 699 655 22 112 0 00 4380 699 638 23 115 0 00 4495 699 622 25 120 2 66 4615 701 606 26 112 1 36 4727 702 594 29 116 0 00 4843 702 580 30 11 5 0 00 4958 702 566

Sept 1 115 0 00 5079 702 553 2 112 0 00 5191 702 541

----shy5079 702

50

-----------------------------------------------------------------

------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

June 5 73 0 00 73 0 00 7 126 0 00 199 0 00 8 127 0 00 326 0 bull 0 0

10 11 4 3 105 440 3 27 12 113 2 71 553 5 36 14 119 1 34 672 6 36 15 116 4 138 788 10 51 17 116 3 103 904 13 56 19 118 6 203 1022 19 74 21 118 0 00 1140 19 67 22 117 10 342 1257 29 92 24 116 3 103 1373 32 93 26 119 11 370 1492 43 115 28 11 8 6 203 1610 $ 49 122 29 115 13 452 1725 62 144

July 1 119 8 269 1844 70 152 3 119 17 571 1963 87 177 5 119 13 437 2082 100 192 6 12 0 17 567 2202 117 213 8 121 7 231 2323 124 214

10 11 4 18 632 2437 142 233 12 115 12 417 2552 154 241 13 116 37 1276 2668 191 286 15 117 16 547 2785 207 297 17 11 8 31 1051 290 3 238 328 19 118 18 610 3021 256 339 20 115 29 1009 3136 285 364 22 122 17 557 3258 302 371 24 115 24 835 3373 326 387 26 120 19 633 3493 345 395 27 117 11 376 3610 356 394 29 117 14 479 3727 370 397 31 116 18 621 3843 388 404

August 2 121 9 298 3964 397 401 3 122 17 557 4086 414 405 5 11 8 8 271 4204 422 402 7 128 19 594 4332 441 407 9 257 10 156 4589 451 393

10 125 14 448 4714 464 394 12 13 1 308 4727 465 393 14 107 5 187 4834 470 389 16 122 4 131 4956 474 383 17 123 15 488 5079 489 385 19 118 8 271 5197 497 383 21 112 3 107 5309 500 378 23 120 6 200 5429 506 373 24 115 7 243 5544 513 370

51

-----------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 (Continued)

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

August 26 115 5 174 5657 518 366 28 119 1 34 577 6 519 359 30 119 4 134 5895 523 355 31 117 0 00 6012 523 3 48

Sept 2 123 3 98 613 5 526 343 4 479 2 17 6614 528 319 6 238 1 17 6852 529 309 7 237 0 00 7089 529 298 8 9

238 242

1 2

17

33 7327 7569

clt

530 532

289 281

10 242 3 50 7811 535 274 11 242 0 00 8053 535 266 12 241 2 33 8294 537 259 14 227 3 53 8521 540 253 15 242 0 00 8763 540 246 16 210 1 19 8973 541 241 17 239 2 33 9212 543 236 18 230 0 00 9442 543 230 20 489 0 00 9931 543 219 21 240 2 33 10171 545 214 22 242 0 0 10413 545 209 23 234 0 00 10647 545 205

----shy

10647 545

52

------------------------------------------------------------------------

------

TABLE 6A Unalakleet River Sonar Site Drift Sets5 1 4n Me sh 19 83 bull

Date Time Result

July 19 1405-1413 1 burbot July 23 1040-1055 1 pink caracass July 27 1520-1530 1 coho August 3 1444-1501 4 coho August 22 1930-1937 0 August 23 937-943 1 coho 1 pink carcass August 26 1117-1127 1 coho 3 churn August 31 1018-1034 3 churn

TABLE 6B Unalakleet River Sonar Site Beach Seines 1983

Date Time Distance Result

July 20 1445 120 meters 4 pink 1 churn 13 Dolly Varden 1 whitefish

July 25 1500 120 meters 6 pink 1 churn 1 Dolly Varden 4 whitefish 1 grayling

July 28 1700 120 meters 4 coho 2 pink 2 churn 1 Dolly Varden

August 1 2010 300 meters 4 pink 3 churn 8 Dolly Varden

August 4 1015 130 meters 5 coho 3 pink 3 churn 65 Dolly Varden 3 whitefish 3 grayling

August 24 1110 130 meters 18 coho 2 Dolly Varden 2 grayling

August 29 1715 120 meters 11 coho 1 pink 69 churn 1 Dolly Varden 2 grayling

Seine done at mile 12 Unalakleet River

53

--------------------------------------------------------------------------------------------------

--------------------------------------------------------------------------------------------------

TABLE 7 AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER CATCH SAMPLE SPORT CATCH AND SPAWNING SURVEYS 1983

II

COMBINED 3-2 4-2 4-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 31 646 6702 5 104 5010 8 167 5688 1 21 5900

Female 17 354 8540 o o 1 21 5450 o o

Total 48 1000 7353 5 104 5010 9 188 5661 1 21 5900

~ 11)

5-2 6-2 7-2 7-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 11 229 7382 6 125 8350 0 0 0 0

Female 2 42 7925 12 250 8742 1 21 10650 1 21 8350

Total 13 271 7465 18 375 8611 1 21 10650 1 21 8350

TABLE 8A AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER TEST NET SAMPLE 1983

-----~-------------------------------------------------------------------------------------------------------

gt

COMBINED 4-2 5-2 5-3 6-2 7-2 NO LENGIH NO LENGIH NO LENGIH NO LENGTH NO LENGTH NO LENGTr

8 14 n

Male 3 333 8107 0 1 111 5800 o 0 2 222 9260 0 0 Female 6 667 8295 0 0 1 111 7600 o o 4 444 8310 1 111 8930 Total 9 10 e 0 8232 0 o 2 222 6700 o o 6 667 8627 1 111 8930

If) If)

5 14 Male 19 1000 6298 12 632 5392 4 211 6990 0 o 3 158 8997 0 0 Female o 0 o o o o o o 0 0 0 0 Total 19 1000 6298 12 632 5392 4 211 6990 o o 3 158 8997 0 0

4 n or Smaller Male 6 667 5930 1 111 4660 2 222 6325 3 333 6090 0 o 0 o Female 3 333 8970 o o o o o o 3 333 8970 0 o Total 9 1000 6943 1 111 466 2 222 6325 3 33 3 6090 3 33 3 8970 0 0

TOTAL Hale 28 757 6413 13 351 5336 7 189 6630 3 8 1 6090 5 13 5 9102 o 0 Female 9 243 852 o o 1 27 7600 o o 7 189 8593 1 2 7 8930 Total 37 1000 6925 13 351 5336 8 216 6751 3 8 1 6090 12 324 88 e 5 1 2 7 8930

---------------------------------------------------------------------------------------------------------

---------------------------------------------------------------------------------------------------------

TABLE 8B AGE SEX AND SIZE COMPOSITION OF NORTON SOUND COHO SALMON UNALAKLEET RIVER TEST NET SAMPLE 5 14 AND 5 78 GEAR 1983

COMBINED 3-2 4-3 4-4 5-4 NO LENGIH NO LENGIH NO LENGTH NO LENGIH NO LENGTH

Male 9 900 5489 0 0 9 900 5489 0 0 Female 1 10 bull 0 552 QJ QJ 0 1 10QJ 5520 0 0 Total 10 1000 5492 0 0 10 1000 5492 0 0 725-731

bull LI)Male 15 938 5645 15 938 5645 Female 1 62 575 QJ 1 62 575 QJ Total 16 lQJ0QJ 5651 16 100QJ 5651 81-87

Male 24 545 5668 23 523 5768 1 23 3350 Female 20 455 5631 20 455 5631 0 0 Total 441QJ0QJ 5651 43 977 57 QJ 4 1 23 335 QJ 88-814

Male 7 500 5797 7 500 5797 QJ 0 Female 7 500 5596 6 429 5587 1 71 5650 Total 14 1000 5696 13 929 1 71 5650570 815-821

Male 5 455 5492 5 455 5492 Female 6 545 5552 6 545 5552 Total 11 lQJ00 5525 11 100QJ 5525 822-828

effort

Although the current at the sonar site was insufficient to raise the tube to the surface it did help in pulling it up to a point where it could be cleaned

Calibration (a comparison of oscilloscope fish counts and sonar fish counts) was scheduled four times daily on both banks The magnitude of the fish milling problem compounded by slow fish passage made this schedule impractical much of the summer Calibration was attempted when usable results seemed impossible it was not attempted at extreme rates of fish passage Calibration was done by comparing echoes on a Tektronix 221 oscilloscope with counts of the sonar counter Salmon passing through the sonar beam produce a distinctive oscilloscope trace A count of 100 fish within 30 minutes the maximum calibration period was required before resetting the sonar fish velocity controls

agreement = Sonar computer count Oscilloscope count

The agreement was then used to adjust the daily counts Agreement of less than 1 indicates the sonar was undercounting and greater than 1 indicates overcounting

When the count agreement varied more than 15 then the following equation was used to derive a new fish velocity

agreement x existing velocity = new velocity

Milling fish became a problem on June 28 on the north bank when slow migrating and milling pink salmon oscars started riding the substrate turbulence wave Based on counting tower observations it was determined that all sixteen sectors were affected On July 1 and 2 the substrate was moved approximately 700 feet downstream to the base of a small cliff with somewhat faster water velocity Pink salmon began riding the substrate at the new site within hours Oscars were not a problem on the south bank during this time therefore in order to estimate the passage on the north bank the average hourly passage rate (percent per hour of the daily total) of the preceding three day period of the south bank was used to calculate daily totals for the

-4shy

north bank based upon hours which were not apparently effected by oscars

Total of Preceding 3-day valid hourly sum of daily

Daily total--North = counts--north x counts--South Total of corresponding hourly counts for preceding 3 days--south

After two weeks of attempting to deal with milling fish the following policy was decided on The sonar beam was raised slightly so that a strong target was seen in the four degree mode but a decrease in target strength was barely apparent in the two degree mode The offshore end of the substrate was moved middotfive feet downstream from the perpendicular placement used earlier The beam was extended as far as possible beyond the target These measures seemed to eliminate fish avoidance of the substrate as a problem

Other milling problems were not satisfactorily resolved Salmon moving downstream were not counted by the sonar but those same fish moving upstream could be counted by the sonar It was decided to invalidate an hourly count if milling fish were observed from a tower or oscilloscope or if sonar criteria were not met Disqualifying sonar criteria were hourly debris checks or a large fish count over 15 The large fish count indicated fish moving over the substrate in a tight school which was characteristic of milling behavior King salmon in the Unalakleet did not seem to reflect a long enough signal to register as large fish however two or three small salmon could register if they were close to the same distance from the transducer and spaced in an overlapping manner

Records of changes in counter settings river conditions and other unusual occurrences were also used in adjusting daily sonar counts

The large fish counter on the 1981 model sonar counter was ignored except as an index of milling fish

Test Fishing

The same test fishing site as in 1981 and 1982 was used during the 1983 season

-5shy

The ten fathom 8 14 gillnet was set from May 27 to May 31 A twenty fathom 8 14 gillnet was set on June 1 and fished until June 4 From June 5 to September 4 the period of sonar operation a rotating schedule of twelve hour time blocks over a period of three days was used The nets used included

1 20 fm 8 14 mesh 2 25 fm 5 14 mesh (June 5-August l025 fm 5 78

mesh (August II-September 4) 3 25 fm 4 mesh 4 15 fm variable mesh

The 25 fm 5 78 mesh gillnet was fished from September 5 to September 25 The 8 14 mesh net and the v~riable mesh net were fished concurrently The three-day rotation schedule allowed each net to be fished during one 12-hour high tidedaylight period and one 12-hour low tidenight period Nets were rotated at 0900 and 2HJ0 daily The 8 14 mesh net was removed from the rotation on July 21 because the chinook migration was completed

The CPUE (catch100 fm-hr) was calculated for the two most efficient nets for each species to be used in apportioning sonar counts These CPUEs for chinook coho pink chum and other species presumably detectable by sonar were totaled and the species CPUE divided by the total CPUE for all species to give the percent of the periods sonar counts to each specie The seventh day of the week was apportioned by using the previous 3-day proportions for one half of the counts and the following 3-day proportions for the second half of the counts

Test net data (Tables 5A 5B 5C and 5D) was calculated for the single most effective net for each species for separate analys is

Weights lengths and scale samples were taken from all chinook coho and chum captured Pink salmon were counted only Tissue samples were taken from test net chinook salmon for electrophoretic studies coordinated by the Stock Separation Section of the Commercial Fisheries Division

Counting Towers

Counting towers were erected immediately adjacent to the

-6shy

onshore end of each substrate (Figure 2) As in 1982 the use of visual tower counts for comparison with sonar counts could not be relied upon due to river width surface disturbances etc however several short comparisons were possible The towers proved invaluable in determining the presence of moribund fish debris passage presence of oscars fish swimming behavior etc The 1983 low river level and generally less turbidity as compared to 1982 allowed more rapid and concrete identification of the milling fish Without use of the tower the severity of the milling fish problem may not have been discovered

Drift SetsBeach Seines

Drift sets and beach seines were done for comparison with test net species apportionment and to determine fish passage beyond the sonar counting range Drjft sets were accomplished by drifting a 25 fm 5 14 gillnet perpendicular to the shore The 25 fm net allowed the major portion of the river to be fished thus only one drift was done per set as opposed to 1982 when a drift set was done near each bank Set durations ranged from 5 to 17 minutes dependent upon boat traffic wind conditions etc Drift sets were done on July 19 23 and 27 and August 3 22 23 26 and 31

Beach seines were accomplished by using a 25 fm 3 mesh seine immediately downstream of the south bank substrate Shoreline conditions prevented se1n1ng near either north bank site Beach seines on the south bank were done on July 20 25 and 28 and August 1 and 29 Beach Unalakleet River were done on August 4 and levels prevented seining from August 4 to

seines 24

24

at High

mile 12 water

Riyer Surveys

Two river surveys were attempted during 1983 A jet boat was taken up the North River on July 29 This proved to be early for carcass sampling but weather and equipment problems prevented a later survey

A float trip of the Old Woman and upper Main River was also made A plane landing mishap greatly reduced the scope of this trip Weather prevented any follow up work

Subsistence Surveys

A daily survey of three to five sUbsistence fishermen is

-7shy

made from the time the first king salman is caught early in June through the remainder of that month These people must be trustworthy conscientious about checking their nets and fairly successful The average daily catch is compared to the previous day to develope the annual trend and the total catches and the annual trend is compared to past years Commercial catch and effort data and the up-river test net data are used in conjuction with the subsistence catch to anticipate strategies

future catches and management

During late September made of Unalakleet

an The

extensive door to door survey is Annual Management Report covers

subsistence surveys in detail

RESULTS

~istence Survey

The Unalakleet subsistence survey made in late September interviewed 74 subsistence fishermen 68 of whom fished in the river and 17 who fished in the ocean The catch was predominantly from the river with 1480 king 6311 coho 13458 pink and 4124 chum salmon reported The ocean subsistence catch was 388 king 577 coho 350 pink and 277 chum salmon

The mean chinook salmon catch per fisherman peaked on June 16 This compares with July 3 in 1982 and June 19-22 in 1981 All subsistence fishermen surveyed in 1983 were fishing within one mile of the river mouth

Chinook subsistence survey results are presented in Table 1 and Figure 3 As in 1981 and 1982 the variances in nets fishing times and net locations call for calculation of mean catch per fisherman as opposed to catch per unit effort

Sonar

During the period from June 4 to September 4 the final sonar count was 322494 148465 (460) counts were tallied on the south bank and 174029 (540) counts were tallied on the north bank

The daily sonar counts (Table 2) were adjusted by the test net proportions (Table 4) to give the following escapement estimates for the period June to September 4

-8shy

Species Total Count LQf Total

Chinook 2790 09 Coho 17013 53 Pink 91881 285 Chum 58273 181 Other 152537 AL2

322494 1000

Tables 3A 3B 3C 3D and 4D present this data by 3-day sample period Based on discussions with Al Menin and Dave Gaudet about the ability of sonar counters to discriminate between various target shapes and sizes any fish two and one half pounds or laterally compressed fish ~f one pound or larger could be counted by a sonar calibrated for pink salmon Fish other than salmon considered countable by the sonar counter included arctic char grayling burbot and broad humpback and Alaska whitefish

Peak adjusted apportioned sonar counts were on June 23 for chinook August 21 for coho July 18 for pink and July 25 for chum salmon (Tables 3A 3B 3C and 3D Figures 4A 4B 4C and 4D)

Representative passage rates on the south bank by sector and by hour for July 3-5 and August 21-23 are presented in Figures 6 and 7 These periods were chosen because of minimal adjustments to raw counts north bank counts are not presented due to lack of relatively clean data for those periods

Test Fishing

A total of 19 chinook (74 male - 26 female) 294 coho (61 male 39 female) 1156 pink (52 male - 48 female) and 915 chum (54 male - 46 female) was captured from May 27 to September 23 The fish were sampled and delivered to Hartha Nanouk a local subsistence fisherman as per agreement for the use of her traditional set-net site

Based on the single most effective test net CPUE the chinook migration did not peak as such but rather showed most consistent catches on June 22 and 23 coho migration peaked from August 10-14 pinks from July 18-22 and chum on July 13

-9shy

Comparisons of daily CPUE and cumulative CPUE for all salmon species are presented in Tables SA 58 5C and 5D and Figures 8 thru 15 Of interest although not as useful for annual comparison due to different test net methods net mesh sizes fishing time etc the actual fish caught from 1981 to 1983 are

~ 1982 un 41 chinook 39 chinook 39 chinook

107 coho 310 coho 294 coho 1463 pink 5114 pink 1156 pink

722 chum 375 chum 915 chum

f

Age Sex and Size Composition of Test Net Catches

An age analysis of scales collected during the project indicated the following age compositions king salmon all gear sizes (4-2131 5-2 22~ 5-3816-23217-2 3) coho salmon 5 14 and 5 78 gear (3-2 051 4-3 981 4-4 051 5-4 l) chum salmon 5 14 and 5 78 gear (3-1 21 4-1 611 5-1 37) Tables 7 thru 9D show the age composition of the various species broken down by date and the mesh sizes used during the project

Counting Towers

As cited visual tower counts could not be made on the Unalakleet River due to river width surface disturbances turbidity etc However visual observations proved invaluable in identifying spawning behavior etc and resulted in the downstream relocation of the north bank substrate and development of the method used to adjust north bank sonar counts

Drift SetsBeach Seines

Tables 6A and 68 present the results of drift sets and beach seines respectively Drift set results indicate that the portion of the river not isonified was not used by migrating salmon ie the species most countable coho pink and chum salmon would seem to follow the banks and were counted by the side-scan sonar

Beach seines proved useful in verifying the high presence of

-10shy

species other than salmon the relative abundance of coho salmon in August and the presence of spawning churn salmon in the south bank substrate area

Riyer SurveysAerial SurVeys

On July 29th 32 miles of the North River were surveyed by a two-person crew for the purpose of counting live chinook and sampling chinook carcasses A total of 166 live chinook were counted and 3 chinook carcasses were sampled with approximately half of the chinook counted between mile 25 and mile 32

Originally the Old Woman River survey was to be a six-day trip Due to the damage the plane suffered dropping the first crew member off the second member and support gear was not av~ilable for the survey as planned~ The survey of the Old Woman River August 6-8 counted 60 king salmon but only four samples were collected Weather prevented the survey of the main river

King Salmon Spo rt Fish Survey

A sport fishing lodge on the Unalakleet River is responsible for the majority of the sport fishing effort Periodic surveying of lodge personnel indicates that a fair quantity of king salmon are harvested by sport fishing A quantitative survey was not done however due to limited time available A total of 43 chinook was sampled from sport fishing catches

DISCUSSION

River levels were lower than normal during the spring of 1983 due to the lack of snow accumulation the previous winter The Unalakleet River cleared early and became quite low during late June and early July The low water allowed the counting towers at the sonar site to be used during calm survey days which wasnt possible during 1982

Tower observations made as early as June 28 showed serious milling problems at the north bank sonar site The sonar was moved to a new site on July 2 Milling fish were still a considerable problem at the new site but about half the hourly count were considered acceptable during mid-July Milling salmon were a problem through most of the field season Milling salmon of all four species were observed

-11shy

during the latter half of each respective migration Pink salmon presented the worst problem and churn the least Unfortunately milling pinks invalidated the churn count since the two runs overlap Coho salmon exhibited some milling but an accurate evaluation of this problem was hampered by turbid water Milling coho became a problem after August 20

The milling observed from the towers was not apparent to the observer at the oscilloscope because of the overwhelming number of spikes present at that stage of the salmon migration During 1982 when tower observations were not possible the oscilloscope appeared to have an extraordinary number of spikes The large pink salmon count recorded in 1982 may have been an artifact of milling behavior that was unobservable then Commercial catch and test net catch statistics indicate a large pink salmon run f However it is likely fish milling over the substrate exaggerated the sonar count although without tower observations it can not be proven

Another problem observed during the 1983 field season was avoidance of the substrate by all fish species This problem was at its worst when water was low and clear Angling the substrate slightly downstream as it was after July 15 helped considerably By extending the sonar beam periodically it was determined that as visibility decreased so did avoidance

Species apportionment of the sonar count was done using test net catches Some of the problems encountered with the sampling scheme should be pointed out Test nets were assumed to sample the same portion of the river as the sonar Since three net lengths were used this seemed suspect Different species migrate at different depths The non-salmon species tend to migrate in shallow water near shore and generally the larger species migrate in deeper water nearer mid-stream Since only a IS-fathom net of the most efficient type for non-salmon species was fished in the preferred habitat for these fish it is likely that the calculated efficiency was too high The other test nets were longer and also sampled some preferred areas for the targeted species

The opposite case is true for king salmon The 8 14 net is 20 fathoms longS fathoms shorter than the other nets used on this project This net does not cover all of the area preferred by king salmon This means king salmon

-12shy

escapement is probably underestimated but the 20 fathom net samples an area further out than the sonar counter even with its beam extended So the number of king salmon counted by the sonar is over estimated King salmon make up such a small percentage of the total salmon run that counting errors are more significant than this apportionment error

Very few churn and pink salmon were caught in the offshore end of the nets It is assumed these long nets had very little effect on the sonar count species apportionment

CONCLUSION

The feasibility of counting salmon in the Unalakleet River using side-scanning sonar is unlikely due to milling fish and the inal1ility to accurately apportion the sonar count to the various fish species It is possible that a partial escapement count could be made further up river above one or more of the major tributaries to the system The new north bank sonar site that showed some improvement over the former site had two differences that seemed to affect salmon migration The current was faster over the substrate at the second site and the river gravels were less ideal spawning habitat The new site was located below a rock bluff on the outside of a river bend

There are two similar sites up river about ten miles where the current is faster and the bottom is even less conducive to spawning During the 1984 field season a comparison of the smoother running south bank site and these up-river sites could be made The best time to do this would be during August when only coho salmon are migrating The counter should be operating by August 15 prior to milling activity and maintained for a week to evaluate if milling salmon became apparent later after the migration peaked The south bank site could be used as a control for comparison to 1983

-13shy

I I

5 1 2

Miles No tt h _

shy

R Iv er

Figure 1 Unalakleet Escapement Project

lt

Son sr

Fig u r e 2 S 0 0 a r Sit eSc hem a tic

ITower

Original Ninth Bank Sonar

Drift sets 5 minutes

Lf)

So t h Ban k Son a

lTower

o Work Tent

B Living Quarters

Figure 3Unalakleet Subsistence Survey 1983

Kin g- S a I m 0 n

1bull

10

9

c 8aI

-lE 11 t a til 7 ~ II 6 ~ U

5 til

0

c 4 til til

E 3 I

1 V

~ 2

1

27 1 5 10 15 20 25 30

~ June

Figure 4A Specie apportionment king salmon Un-alakleet sonar 1983

~

25

-l20

c 1 5 III () III

11

10

5

I

J

27 31 5 10 15 20 25 30 5 10 15 20 25 31

June Ju Iy

Figure 4B Specie middotapp~~tionment coho salmon Unalakleet sonar 1983

30

25

co ~

20

1 t~

C $

u 1 5 CD a

10

5

5 10 15 20 25 31 5 10 15 20 25 31 5

Ju August Sept e

Figure 4C Specie apportionment pink salmon Unalakleet sonar 1983

1 6

1 5

14

1 3

12

1 1

c II U CII

Ashy

10

9

a

7

01 ~

6

5

4

3

2

1

1 5 10 1 5

June

2 O 25 30 5 10 15 20

Ju Iy

25 31 5 10 15 20

August

25 31 5 10

Septem

Figure 40 Species apportionment chum salmon Unalakleet sonar 1983

16

1 5

1 4

13

1 2

1 1

10

9 c 8GI U

GI middot7 A

6

5

4

3

2

1

~

o N

~

1 5 10 15 20 25 30 5 10 15 20 25 3 1 5 10 15 20 25 31 5 10

June Ju Iy August Sept e

Figure 5 Specie apportionment Unalakleet sonar 1983

50

4

40

35

c J 30 0 U

~ 0 25 0 c Q)

u ~

Q) 20a

15

10

5

o L-_lt---__

King Coho Pink Chum Misc

21

----

Figure 6 Sector distribution of counts Unalakleet sonar1983

35

30

25

c 20 G)

() G) 15

0

10

5

35

30

25 c G)

() 20

G)

0 15

10

5

( s ()u t h ban k )

July 3-5

~-2 4 6 8 1 0 1 2 1 4 1 6shy

Sector

August 21-23

2 4 6 8 10 12 14 16

Sector

22

Figure 7 Hourly distribution of counts Unalakleet sonar 1983

(south bank)

14

12

10

c 8 GI U ~

6

July 3-5

~GI

I =~ Q

4

2 0

2 4 6 8 10 12 14 1 6 18 20 22 24

TIme

9

8

7

6

5 c GI U ~ 4 GI

Q

3

2

August 21-23

1

0

2 4 6 8 10 12 14

TIme

16

23

18 20 22 24

Figure 8 Unalakleet River Test Fishing Daily King CPUE in 8 14 mesh 1983

10

9 N

8 shy

7 I 0 c 6E

n

l J I I

0 0 5 c (J 4 co 0

3

2

1

I I

27 1 5 10 15 20 25 1 5 10 15 20 25 31

~ June July

Figure 9 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1983bull

~

middot10

09 U N

I 08 0 c 07E I ()

- 06 E-0 0 05 shy~ () 04 ca - ()

03E I 0 02

01

27 1 5 10 15 2Q 25 1 5 10 15 20 25 31

June July

Figure 10 Unalakleet River Test Fishing Daily Coho CPUE in 5 78 mesh 1983

1

6

5

I 0

NI II I 0 t

E 4

0 0 c 3() cu 0

2

1

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sept U

Figure 11 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1983

200

175

150

I 0 c 125E I ()

E

r-shy-0 I I N 0 100 c ()-as ()

75E I 0

50

25

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sel ber

20

Figure 12 Unalakleet River Test Fishing Daily Pink CPUE in 4 mesh 1983

18

I

0) N

II

16

I ishy

14 J 0 t 12shyE 0 10 0 shys 8 () as

0 6 1 I V 4

2

~ I

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

--

Figure 13 Unalakleet River Test Fishing Cumulat ive Pink CPUE in 4 mesh 1983

10

9 01 N 8

J 0 J 7 E J 0 6 E- 50 ~

amp 4() ca

0 3 E J

0 2

1

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

Figure 14 Unalakleet River Test Fishing Daily CPUE in 5 14 amp 5 78 mesh 1983

14

13shy

12

11

10

9 J 0 8

I z shy-E 7 0 0 shys ~u aI 0

4 I

31

2

1

II

0 C1)I 11

I I I II

bull y AA(net changed to 5 78

AA A 11 I

~ I~ V ~

- I

VI

1 5 10 15 20- 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

cJune July August

Figure 15 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 14 amp 5 78 mesh 1983

It

5

--l C)

net changed to 5 78

~ 4 o

c E (J ~

3E o o c 2 u ~ -(J

E ~ (J 1

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 16 Unalakleet River Test Fishing Catch Proportions 1983

60

55

---- King50

__ Coho 45

P--Q Pink

40 __ Chum

I LU 35J D I 0

30 ICQ 0 25 I

N Cl0 20

c G)

15u G)

D

10

5 A 1 I

I 4 I

I I

3 lt

~

2

I I1 - I bull I

I ~ ~ ~ t -J ~~ - _

r

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 17 Unalakleet Area Temperatures 1983

18

16

14

12

til 10I

u-G) 80 CI) G) G) 6 C) G)

Q 4

2

C) C)

__ Air

0--0 River 2

0

-2

-4

---------~ ~

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August 5e

4

Figure 18 Unalakleet River Turbidity and Depth 1983

__ Secchi Reading

-t ()

II) G)-G)

3

iE 2

1

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August

~ 1 _ ~ r--- I shy I __ I 01 --shy

Figure 19 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1981-83

27 31 5

May

_1981

____ 1982

o 0 1983 11) C)

Changed to 5 78 mesh

I

t

~-~o-~ Q-O--Oolt)-(IQ-----l

--1

_10 15 20 25 30 5 10 15 20 25 31

June July

I I I

~

0 ~

r E ~

CJ shyE 0 0 I

shyr u-cu CJ

E ~

CJ

4

35

30

25

20

15

10

05

Figure 20 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 78 mesh 1981-83

5

4 lI 0

z

E lI 0 3 E-0 0 2 r CJ-cu 0

E lI 1 0

__1981 ~~

~ ___1982

a 01983 5 148 mesh from 65-810

_----shy-- 0 - -- C1) A - _ - ~

~ I

I

II I I I I I

I I

1

~ -

-

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 21 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 mesh- 1981-83

8

70

60

50

40 0

r 30E

0 20E-0 0 10 s= u 8 tV 0 6E 0 4

2

__1981 ____ 1982

_1983

shy--- -- shy--- shy J - -

I

I

C1- J

I

-----l---l ~--~r---------------r--

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 22 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1981-83

_1981

~ __ 1982

~1983

25

00I _ __ _ _ C)~ I __ _ I

I V o 20 rt I I

E I AshyI o E 15-o o z u 10 tU o E I o 5

I

1 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

July August 5

----------------------------------------------------------------

Table 1 Unalakleet River Subsistence King Salmon Index 1983

Number of Number of Date Fishermen Chinook Average

08 02 18 05 05 00 02 58 92 62 72 72 42 28 52 60 62 20 47 50 35 25 15

June 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Totals

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 4 4 4

4

3 1 7 2 2 o 1

23 37 25 29 29 17 11 21 24 25

6 14 15 14 H~

6

322

~

39

---------------------- ---------- --------------------------------------

----------------------------------------------------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983

Daily Proportion Cumu1 Prop Date South North Total of Total Cumulative of Total

64 7 23 30 1313131 313 013131 65 44 187 231 00137 261 01308 66 12 162 174 01305 435 01313 67 8 283 291 1313139 726 01322 68 0000 726 13022 69 3 221 224 013137 950 13029 610 26 245 271 131308 1221 13037 611 56 254 310 131310 1531 131347 612 44 736 780 013 24 2311 13071 613 64 1188 1252 01339 3563 01113 614 59 1752 1811 0056 5374 0166 615 97 844 941 01329 6315 0195 616 165 729 894 0028 7209 0223 617 151 i 604 1755 0054 8964 middot 0277 618 i ll 1524 1635 0051 10599 13328 619 175 2000 2175 0067 12774 13395 620 171 21320 2191 0068 14965 0463 621 220 1613 1833 0057 16798 0520 622 199 2065 2264 0070 19062 0590 623 362 21334 2396 0074 21458 13664 624 876 3403 4279 13133 25737 0797 625 1244 2023 3267- 0101 29004 0898 626 738 1601 2339 0073 31343 0971 627 573 3265 3838 0119 35181 1090 628 547 1868 2415 0075 37596 1165 629 528 4028 4556 0141 42152 1306 630 430 430 0013 42582 1319 71 240 240 01307 42822 1326 72 201 975 1176 0036 43998 1362 73 309 8842 9151 0284 53149 1646 74 475 6385 6860 0213 60009 1859 75 565 3342 3907 0121 63916 1980 76 1377 2094 3471 0108 67387 2088 77 1416 3173 4589 0142 71976 2230 78 1472 1420 2892 0090 74868 2320 79 2071 1452 3523 01113 78391 2430 710 3318 2434 5752 0178 84143 2608 711 2673 2866 5539 13172 89682 2780 712 1665 1747 3412 13106 93094 2886 713 21317 1951 3968 13123 97062 3009 714 2991 2664 5655 0175 102717 3184 715 2646 2548 5194 13161 107911 3345 716 2488 2886 5374 0167 113285 3512 717 1585 4063 5648 0175 118933 3687 718 3559 9326 12885 0400 131818 4087 719 2948 2398 5346 13166 137164 4253 720 1640 3330 4970 0154 142134 4407 721 2416 6420 8836 0274 150970 4681 722 3298 3298 0102 154268 4783 723 5007 5007 0155 159275 4938

40

--------------------------------------------------------------------

--------------------------------------------------------------------

-----------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983 (Continued)

Daily Proportion Cum Prop Date South North Total of Total Cumu1at i ve of Total

724 4005 7804 11809 0366 171084 5304 725 2453 3392 5845 0181 176929 5485 726 2166 12094 14260 0442 191189 5927 727 1914 4472 6386 0198 197575 6125 728 1603 3463 5066 0157 202641 6282 729 1251 1914 3165 0098 205806 6380 730 1710 2495 4205 en30 210011 6510 731 2542 1887 4429 0137 214440 6647 81 4479 2271 6750 0209 221190 6856 82 1103 1806 2909 0091 224099 6947 83 1719 942 2661 0083 226760 bull 7030 84 1519 2557 4076 0126 230836 7156 85 1259 1113 2372 0074 233208 7230 86 940 2189 3129 0097 236337 7327 87 1467 4354 5821 0180 242158 7507 88 2318 1584 3902 0121 246060 7628 89 2098 1505 3603 0112 249663 7740 810 2629 1517 4146 bull 0129 253809 7869 811 3753 1091 4844 0150 258653 8019 812 1489 523 2012 0062 260665 8081 813 744 353 1097 0034 261762 8386 814 981 981 bull 0030 262743 8145 815 2324 2324 0072 265067 8217 816 2638 2638 0082 267705 8299 817 2073 731 2804 0087 270509 8115 818 2244 675 2919 0091 273428 8477 819 3240 696 3936 0122 277364 8599 820 2363 503 2866 0089 280230 8688 821 6789 1111 7900 0245 288130 8933 822 6489 563 7052 0219 295182 9152 823 5077 298 5375 0167 300557 9319 824 2616 298 2914 0090 303471 9409 825 3933 412 4345 0135 307816 9544 826 1393 554 1947 0060 309763 9604 827 1203 463 1666 0052 311429 9656 828 1197 542 1739 0054 313168 9710 829 1244 221 1465 0045 314633 9755 830 1011 199 1210 0038 315843 9793 831 718 214 932 0029 316775 9822 91 1324 318 1642 0052 318417 9874 92 1362 307 1669 0052 320086 9926 93 1146 314 1460 0045 321546 9971 94 652 296 948 bull 0029 322494 10000

148465 174029 322494 10000

41

----------------------------------------------------------------------

-------------------------------------------------------------------- --

------

TABLE 3A Unalakleet River Species Apportionment by Test Period King Salmon 1983

3-Day App Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 76 0272 76 0272

69-612N 28 0100 104 0372

612N-615 461 1652 565 2024

616-619N 419 1502 984 3526

619N-622 170 0609 1154 4135

623-626N 722 2588 1876 6723

626N-629 264 0946 2140 7669

630-73N 103 0639 2243 8038

73N-76 188 0674 2431 8712

77-710N 0 0000 2431 8712

710N-713 0 0000 2431 8712

714-717N 267 0957 2698 9969

717N-720 0 0000 2698 9669

721-724N 92 0331 2790 1 0000

724N-727 0 0000 2790 10000

728-731N 0 0000 2790 1 0000

731N-83 0 0000 2790 1 0000

2790 10000

42

Dates

714-717N

717N-720

721-724N

724N-727

728-731N

731N-83

84-87N

87N-810

811-814N

814N-817

818-821N

821N-824

825-828N

828N-831

91-94

TABLE 3B Unalakleet River Species Apportionment by Test Period Coho Salmon

3-Day Count

583

338

436

550

2650

1174

793

1435

5074

1280

435

2265

171H3

1983

Proportion of Season Total

0000

0000

0000

0343

0199

0256

0323

1558

0690

0466

0843

2983

0752

0256

1331

Cumulative Count

583

921

1357

1907

4557

5731

6524

7959

13033

14313

14748

17013

Cumulative Proportion

0000

0000

0000

0343

0542

0798

1121

2679

3369

3835

4678

7661

8413

8669

10000

43

------------------------------------------------------------------

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----- ------

TABLE 3C Unalakleet River Species Apportionment by Test Period Pink Salmon 1983

3-Day P roport ion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 0 0000

6l2N-615 0 0000

616-6l9N 97 0012

6l9N-622 332 0036

623-626N 1245 0136

626N-629 6624 0721

630-73N 3699 0403

73N-76 10762 1171

77-7l0N 7704 0838

710N-7l3 8529 0928

714-717N 9771 1063

717N-720 13845 1507

721-724N 11361 1236

724N-727 6544 0712

728-731N 3545 0386

731N-83 1628 0177

84-87N 1224 0133

87N-810 1777 0193

811-814N 802 0087

814N-817 561 0061

818-821N 533 0058

821N-824 8313 13091

825-828N 468 0051

828N-831 0 0000

91-94 0 0000

91881 10000

0 0000

0 0000

0 0000

97 0012

429 0048

1674 0184

8298 0905

11997 1308

22759 2479

30463 3317

38992 4245

48763 5308

62608 6815

73969 8051

80513 8763

84058 9149

85686 9326

86910 9459

88687 9652

89489 9739

90050 9800

90583 9858

91413 9949

91881 10000

91881 10000

91881 1 0000 44

------------------------------------------------------------------

------------ ------------------------------------------------------

----- ------

TABLE 3D Unalakleet River Species Apportionment by Test Period Chum Salmon 1983

3-Day Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 100 0017

612N-615 268 0046

616-619N 838 0144

619N-622 1180 0202

623-626N 2744 0471

626N-629 1569 0270

630-73N 796 0137

73N-76 2972 0510

77-710N 2068 0355

710N-713 2622 0450

714-717N 4133 0710

717N-720 5596 0960

721-724N 4978 0854

724N-727 8974 1540

728-731N 2241 0385

731N-83 2079 ~0357

84-87N 3009 0516

87N-810 2432 0417

811-814N 937 0161

814N-817 454 0078

818-821N 2584 0443

821N-824 2739 0470

825-828N 1783 0306

828N-831 765 0131

91-94 412 0070

58273 10000 45

0 0000

100 0017

368 0063

1206 0207

2386 0409

5130 0880

6699 1150

7495 1287 f

10467 1797

12535 2152

15157 2602

19290 3312

24886 4272

29864 5216

38838 6666

41079 7051

43158 7408

46167 7924

48559 8341

49536 8502

49990 8580

52574 9023

55313 9493

57096 9799

57861 9930

58273 1 0000

-------------------------------------------------------------

------------------------- ------------------------------------

TABLE 4 Unalakleet River Test Net Proportions by Sample Perio-d 1983 ( Selective CPUE)

Dates Chinook Coho Pink Chum Misc

64-68 105 00 00 895

69-612N 24 00 83 893

612N-615 1C~ 5 00 61 834

616-619N 78 18 156 748

619N-622 23 45 160 772

623-626N 65 112 247 576

626N-629 22 553 131 294

630-73N 16 576 124 284

73N-76 10 572 158 260

77-710N 00 555 149 296

710N-713 00 540 166 294

714-717N 14 00 513 217 256

717N-720 00 00 532 215 253

721-724N 04 00 493 216 287

724N-727 00 18 202 277 503

728-731N 00 23 242 153 582

731N-83 00 30 112 143 715

84-87N 44 98 241 617

87N-810 182 122 167 529

811-814N 139 95 111 655

814N-B17 96 68 55 7B1

B18-B21N 105 39 1B9 667

821N-824 263 43 142 552

825-B28N 145 53 202 600

828N-831 97 00 171 732

91-94 396 00 72 532

46

--------

--------

TABLE 4 Una1ak1et River Test Net Proportions 1983 ( Selective CPUE) (Continued)

Comparative Apportionment

Species Apportionment

Chinook 2790 Coho 17013 Pink 91881 Churn 58273

------shySubtotal 169957

Misc Species 152537 ------shy

Total 322494

Substrate Comparison -------------------shy

Bank Counts -----shy

South 148465 North 174029

------shy

Total 322494

Percent of Total Counts

09 53

285 181

5408

472

1000

Percent

460 540

1000

47

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TABLE 5A Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

May 27 28

21 5 482

13 13

1313

1313 21 5 697

13 13

1313

1313 30 240 0 013 937 0 00 31 246 2 41 1183 2 08

June 1 237 0 00 1420 2 07 2 3

256 585

13 13

013 bull 13 13

1676 2 261

2 2

6bull 13 4

5 6 8

160 120 middot 125

13 1

13 42 130

2 421 2541 2666

~ 2 3 3

bull 13 4 136 136

9 122 0 130 2788 3 05 11 117 00 2905 3 05 12 126 13 00 3031 3 05 13 117 1 43 3148 4 06 15 118 0 013 3266 4 136 16 116 1 43 3382 5 138 18 240 13 130 3622 5 07 19 121 0 00 3743 5 07 20 116 0 00 3859 5 136 22 118 1 42 3977 6 138 23 119 1 42 4196 7 08 25 240 0 013 4336 7 138 26 119 13 1313 4455 7 138 27 119 13 1313 4574 7 138 29 1213 13 130 4694 7 137 313 1213 13 00 4814 7 07

July 2 238 0 1313 51352 7 07 3 118 13 013 51713 7 07 4 118 1 42 5288 8 138 6 122 0 00 5410 8 07 7 116 13 00 5526 8 07

10 126 0 1313 5652 8 07 11 119 0 013 5771 8 07 13 116 13 130 5887 8 07 14 119 2 84 6006 10 07 17 122 0 00 6128 10 07 18 112 0 1313 6240 10 136 20 119 13 00 6359 10 06 21 112 0 013 6471 10 06

6471 10

48

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TABLE 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983

Cum Cum Date Hours Catch CPUE Hours Catch CPUE

July 24 26

115 120 0 00

115 235

0 0

00

00 27 117 4 00 352 0 00 29 117 0 137 469 4 34 31 116 3 103 585 7 48

August 2 122 0 00 706 7 40 3 122 2 66 828 9 43 5 118 1 34 946 10 42 7 128 14 437 1074 24 89 9 257 14 218 1331 38 114

10 125 21 672 1456 59 162 12 13 middot- 0 00 1469 x 59 161 14 10 7 12 449 1576 71 180 16 122 2 66 1698 73 172 17 123 6 196 1821 79 174 19 118 1 34 1939 80 165 21 112 6 214 2051 86 168 23 120 3 100 217 1 89 164 24 115 2 70 2286 91 159 26 115 5 174 2401 96 160 28 119 0 00 2520 96 152 30 119 4 1 34 2639 100 152 31 117 1 34 2756 101 147

Sept 2 123 5 33 2879 106 147 4 479 15 125 3358 121 144 6 238 11 185 3596 132 147 7 237 5 84 3833 137 143 8 238 6 1 01 4071 143 141 9 242 10 1 65 4313 153 142

10 242 3 50 4555 156 137 11 242 2 33 4797 158 132 12 241 8 133 5038 166 132 14 227 14 247 5265 180 137 15 242 9 149 5507 189 137 16 210 3 57 5717 192 134 17 239 2 33 5956 194 130 18 230 2 35 6186 196 127 20 489 4 33 6675 200 120 21 24 3 50 6915 203 117 22 242 0 00 7157 203 113 23 234 1 17 7391 204 110

----shy

7391 204

Mesh size = 5 14 from 724 to 810

49

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TABLE 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE ------~-----------------------------------------------------------June 16 122 1 33 122 1 33

17 118 0 bull 0 0 240 1 17 20 120 2 67 360 3 33 21 118 0 00 478 3 25 23 119 2 67 597 5 34 24 119 3 102 716 8 45 27 116 19 655 832 27 130 28 120 22 733 952 49 206 30 120 40 1333 1072 89 332

July 1 115 36 1252 1187 125 421 4 122 30 983 1309 155 474 5 114 47 1649 1423 202 568 7 118 30 1016 1541 232 602 8 120 shy 24 800 1661 -$ 256 616

11 122 42 1377 1783 298 669 12 120 29 967 1903 327 687 14 116 37 1276 2019 364 721 15 118 40 1356 2137 404 756 18 121 60 1976 2258 464 822 19 119 30 740 2377 494 831 21 125 61 1952 2502 555 887 22 118 25 847 2627 580 883 25 122 16 525 2749 596 867 26 116 15 517 2865 611 853 28 122 28 918 2987 639 856 29 117 11 376 3104 650 838

August 1 120 7 233 3224 657 815 2 119 9 303 3345 666 796 4 120 3 100 3465 669 772 5 118 5 170 3583 674 752 8 114 7 245 3697 681 734

11 123 7 337 3 82 0 688 720 15 118 2 68 3938 690 701 16 113 5 177 4051 695 686 18 98 3 122 4149 698 673 19 119 1 34 4268 699 655 22 112 0 00 4380 699 638 23 115 0 00 4495 699 622 25 120 2 66 4615 701 606 26 112 1 36 4727 702 594 29 116 0 00 4843 702 580 30 11 5 0 00 4958 702 566

Sept 1 115 0 00 5079 702 553 2 112 0 00 5191 702 541

----shy5079 702

50

-----------------------------------------------------------------

------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

June 5 73 0 00 73 0 00 7 126 0 00 199 0 00 8 127 0 00 326 0 bull 0 0

10 11 4 3 105 440 3 27 12 113 2 71 553 5 36 14 119 1 34 672 6 36 15 116 4 138 788 10 51 17 116 3 103 904 13 56 19 118 6 203 1022 19 74 21 118 0 00 1140 19 67 22 117 10 342 1257 29 92 24 116 3 103 1373 32 93 26 119 11 370 1492 43 115 28 11 8 6 203 1610 $ 49 122 29 115 13 452 1725 62 144

July 1 119 8 269 1844 70 152 3 119 17 571 1963 87 177 5 119 13 437 2082 100 192 6 12 0 17 567 2202 117 213 8 121 7 231 2323 124 214

10 11 4 18 632 2437 142 233 12 115 12 417 2552 154 241 13 116 37 1276 2668 191 286 15 117 16 547 2785 207 297 17 11 8 31 1051 290 3 238 328 19 118 18 610 3021 256 339 20 115 29 1009 3136 285 364 22 122 17 557 3258 302 371 24 115 24 835 3373 326 387 26 120 19 633 3493 345 395 27 117 11 376 3610 356 394 29 117 14 479 3727 370 397 31 116 18 621 3843 388 404

August 2 121 9 298 3964 397 401 3 122 17 557 4086 414 405 5 11 8 8 271 4204 422 402 7 128 19 594 4332 441 407 9 257 10 156 4589 451 393

10 125 14 448 4714 464 394 12 13 1 308 4727 465 393 14 107 5 187 4834 470 389 16 122 4 131 4956 474 383 17 123 15 488 5079 489 385 19 118 8 271 5197 497 383 21 112 3 107 5309 500 378 23 120 6 200 5429 506 373 24 115 7 243 5544 513 370

51

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TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 (Continued)

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

August 26 115 5 174 5657 518 366 28 119 1 34 577 6 519 359 30 119 4 134 5895 523 355 31 117 0 00 6012 523 3 48

Sept 2 123 3 98 613 5 526 343 4 479 2 17 6614 528 319 6 238 1 17 6852 529 309 7 237 0 00 7089 529 298 8 9

238 242

1 2

17

33 7327 7569

clt

530 532

289 281

10 242 3 50 7811 535 274 11 242 0 00 8053 535 266 12 241 2 33 8294 537 259 14 227 3 53 8521 540 253 15 242 0 00 8763 540 246 16 210 1 19 8973 541 241 17 239 2 33 9212 543 236 18 230 0 00 9442 543 230 20 489 0 00 9931 543 219 21 240 2 33 10171 545 214 22 242 0 0 10413 545 209 23 234 0 00 10647 545 205

----shy

10647 545

52

------------------------------------------------------------------------

------

TABLE 6A Unalakleet River Sonar Site Drift Sets5 1 4n Me sh 19 83 bull

Date Time Result

July 19 1405-1413 1 burbot July 23 1040-1055 1 pink caracass July 27 1520-1530 1 coho August 3 1444-1501 4 coho August 22 1930-1937 0 August 23 937-943 1 coho 1 pink carcass August 26 1117-1127 1 coho 3 churn August 31 1018-1034 3 churn

TABLE 6B Unalakleet River Sonar Site Beach Seines 1983

Date Time Distance Result

July 20 1445 120 meters 4 pink 1 churn 13 Dolly Varden 1 whitefish

July 25 1500 120 meters 6 pink 1 churn 1 Dolly Varden 4 whitefish 1 grayling

July 28 1700 120 meters 4 coho 2 pink 2 churn 1 Dolly Varden

August 1 2010 300 meters 4 pink 3 churn 8 Dolly Varden

August 4 1015 130 meters 5 coho 3 pink 3 churn 65 Dolly Varden 3 whitefish 3 grayling

August 24 1110 130 meters 18 coho 2 Dolly Varden 2 grayling

August 29 1715 120 meters 11 coho 1 pink 69 churn 1 Dolly Varden 2 grayling

Seine done at mile 12 Unalakleet River

53

--------------------------------------------------------------------------------------------------

--------------------------------------------------------------------------------------------------

TABLE 7 AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER CATCH SAMPLE SPORT CATCH AND SPAWNING SURVEYS 1983

II

COMBINED 3-2 4-2 4-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 31 646 6702 5 104 5010 8 167 5688 1 21 5900

Female 17 354 8540 o o 1 21 5450 o o

Total 48 1000 7353 5 104 5010 9 188 5661 1 21 5900

~ 11)

5-2 6-2 7-2 7-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 11 229 7382 6 125 8350 0 0 0 0

Female 2 42 7925 12 250 8742 1 21 10650 1 21 8350

Total 13 271 7465 18 375 8611 1 21 10650 1 21 8350

TABLE 8A AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER TEST NET SAMPLE 1983

-----~-------------------------------------------------------------------------------------------------------

gt

COMBINED 4-2 5-2 5-3 6-2 7-2 NO LENGIH NO LENGIH NO LENGIH NO LENGTH NO LENGTH NO LENGTr

8 14 n

Male 3 333 8107 0 1 111 5800 o 0 2 222 9260 0 0 Female 6 667 8295 0 0 1 111 7600 o o 4 444 8310 1 111 8930 Total 9 10 e 0 8232 0 o 2 222 6700 o o 6 667 8627 1 111 8930

If) If)

5 14 Male 19 1000 6298 12 632 5392 4 211 6990 0 o 3 158 8997 0 0 Female o 0 o o o o o o 0 0 0 0 Total 19 1000 6298 12 632 5392 4 211 6990 o o 3 158 8997 0 0

4 n or Smaller Male 6 667 5930 1 111 4660 2 222 6325 3 333 6090 0 o 0 o Female 3 333 8970 o o o o o o 3 333 8970 0 o Total 9 1000 6943 1 111 466 2 222 6325 3 33 3 6090 3 33 3 8970 0 0

TOTAL Hale 28 757 6413 13 351 5336 7 189 6630 3 8 1 6090 5 13 5 9102 o 0 Female 9 243 852 o o 1 27 7600 o o 7 189 8593 1 2 7 8930 Total 37 1000 6925 13 351 5336 8 216 6751 3 8 1 6090 12 324 88 e 5 1 2 7 8930

---------------------------------------------------------------------------------------------------------

---------------------------------------------------------------------------------------------------------

TABLE 8B AGE SEX AND SIZE COMPOSITION OF NORTON SOUND COHO SALMON UNALAKLEET RIVER TEST NET SAMPLE 5 14 AND 5 78 GEAR 1983

COMBINED 3-2 4-3 4-4 5-4 NO LENGIH NO LENGIH NO LENGTH NO LENGIH NO LENGTH

Male 9 900 5489 0 0 9 900 5489 0 0 Female 1 10 bull 0 552 QJ QJ 0 1 10QJ 5520 0 0 Total 10 1000 5492 0 0 10 1000 5492 0 0 725-731

bull LI)Male 15 938 5645 15 938 5645 Female 1 62 575 QJ 1 62 575 QJ Total 16 lQJ0QJ 5651 16 100QJ 5651 81-87

Male 24 545 5668 23 523 5768 1 23 3350 Female 20 455 5631 20 455 5631 0 0 Total 441QJ0QJ 5651 43 977 57 QJ 4 1 23 335 QJ 88-814

Male 7 500 5797 7 500 5797 QJ 0 Female 7 500 5596 6 429 5587 1 71 5650 Total 14 1000 5696 13 929 1 71 5650570 815-821

Male 5 455 5492 5 455 5492 Female 6 545 5552 6 545 5552 Total 11 lQJ00 5525 11 100QJ 5525 822-828

north bank based upon hours which were not apparently effected by oscars

Total of Preceding 3-day valid hourly sum of daily

Daily total--North = counts--north x counts--South Total of corresponding hourly counts for preceding 3 days--south

After two weeks of attempting to deal with milling fish the following policy was decided on The sonar beam was raised slightly so that a strong target was seen in the four degree mode but a decrease in target strength was barely apparent in the two degree mode The offshore end of the substrate was moved middotfive feet downstream from the perpendicular placement used earlier The beam was extended as far as possible beyond the target These measures seemed to eliminate fish avoidance of the substrate as a problem

Other milling problems were not satisfactorily resolved Salmon moving downstream were not counted by the sonar but those same fish moving upstream could be counted by the sonar It was decided to invalidate an hourly count if milling fish were observed from a tower or oscilloscope or if sonar criteria were not met Disqualifying sonar criteria were hourly debris checks or a large fish count over 15 The large fish count indicated fish moving over the substrate in a tight school which was characteristic of milling behavior King salmon in the Unalakleet did not seem to reflect a long enough signal to register as large fish however two or three small salmon could register if they were close to the same distance from the transducer and spaced in an overlapping manner

Records of changes in counter settings river conditions and other unusual occurrences were also used in adjusting daily sonar counts

The large fish counter on the 1981 model sonar counter was ignored except as an index of milling fish

Test Fishing

The same test fishing site as in 1981 and 1982 was used during the 1983 season

-5shy

The ten fathom 8 14 gillnet was set from May 27 to May 31 A twenty fathom 8 14 gillnet was set on June 1 and fished until June 4 From June 5 to September 4 the period of sonar operation a rotating schedule of twelve hour time blocks over a period of three days was used The nets used included

1 20 fm 8 14 mesh 2 25 fm 5 14 mesh (June 5-August l025 fm 5 78

mesh (August II-September 4) 3 25 fm 4 mesh 4 15 fm variable mesh

The 25 fm 5 78 mesh gillnet was fished from September 5 to September 25 The 8 14 mesh net and the v~riable mesh net were fished concurrently The three-day rotation schedule allowed each net to be fished during one 12-hour high tidedaylight period and one 12-hour low tidenight period Nets were rotated at 0900 and 2HJ0 daily The 8 14 mesh net was removed from the rotation on July 21 because the chinook migration was completed

The CPUE (catch100 fm-hr) was calculated for the two most efficient nets for each species to be used in apportioning sonar counts These CPUEs for chinook coho pink chum and other species presumably detectable by sonar were totaled and the species CPUE divided by the total CPUE for all species to give the percent of the periods sonar counts to each specie The seventh day of the week was apportioned by using the previous 3-day proportions for one half of the counts and the following 3-day proportions for the second half of the counts

Test net data (Tables 5A 5B 5C and 5D) was calculated for the single most effective net for each species for separate analys is

Weights lengths and scale samples were taken from all chinook coho and chum captured Pink salmon were counted only Tissue samples were taken from test net chinook salmon for electrophoretic studies coordinated by the Stock Separation Section of the Commercial Fisheries Division

Counting Towers

Counting towers were erected immediately adjacent to the

-6shy

onshore end of each substrate (Figure 2) As in 1982 the use of visual tower counts for comparison with sonar counts could not be relied upon due to river width surface disturbances etc however several short comparisons were possible The towers proved invaluable in determining the presence of moribund fish debris passage presence of oscars fish swimming behavior etc The 1983 low river level and generally less turbidity as compared to 1982 allowed more rapid and concrete identification of the milling fish Without use of the tower the severity of the milling fish problem may not have been discovered

Drift SetsBeach Seines

Drift sets and beach seines were done for comparison with test net species apportionment and to determine fish passage beyond the sonar counting range Drjft sets were accomplished by drifting a 25 fm 5 14 gillnet perpendicular to the shore The 25 fm net allowed the major portion of the river to be fished thus only one drift was done per set as opposed to 1982 when a drift set was done near each bank Set durations ranged from 5 to 17 minutes dependent upon boat traffic wind conditions etc Drift sets were done on July 19 23 and 27 and August 3 22 23 26 and 31

Beach seines were accomplished by using a 25 fm 3 mesh seine immediately downstream of the south bank substrate Shoreline conditions prevented se1n1ng near either north bank site Beach seines on the south bank were done on July 20 25 and 28 and August 1 and 29 Beach Unalakleet River were done on August 4 and levels prevented seining from August 4 to

seines 24

24

at High

mile 12 water

Riyer Surveys

Two river surveys were attempted during 1983 A jet boat was taken up the North River on July 29 This proved to be early for carcass sampling but weather and equipment problems prevented a later survey

A float trip of the Old Woman and upper Main River was also made A plane landing mishap greatly reduced the scope of this trip Weather prevented any follow up work

Subsistence Surveys

A daily survey of three to five sUbsistence fishermen is

-7shy

made from the time the first king salman is caught early in June through the remainder of that month These people must be trustworthy conscientious about checking their nets and fairly successful The average daily catch is compared to the previous day to develope the annual trend and the total catches and the annual trend is compared to past years Commercial catch and effort data and the up-river test net data are used in conjuction with the subsistence catch to anticipate strategies

future catches and management

During late September made of Unalakleet

an The

extensive door to door survey is Annual Management Report covers

subsistence surveys in detail

RESULTS

~istence Survey

The Unalakleet subsistence survey made in late September interviewed 74 subsistence fishermen 68 of whom fished in the river and 17 who fished in the ocean The catch was predominantly from the river with 1480 king 6311 coho 13458 pink and 4124 chum salmon reported The ocean subsistence catch was 388 king 577 coho 350 pink and 277 chum salmon

The mean chinook salmon catch per fisherman peaked on June 16 This compares with July 3 in 1982 and June 19-22 in 1981 All subsistence fishermen surveyed in 1983 were fishing within one mile of the river mouth

Chinook subsistence survey results are presented in Table 1 and Figure 3 As in 1981 and 1982 the variances in nets fishing times and net locations call for calculation of mean catch per fisherman as opposed to catch per unit effort

Sonar

During the period from June 4 to September 4 the final sonar count was 322494 148465 (460) counts were tallied on the south bank and 174029 (540) counts were tallied on the north bank

The daily sonar counts (Table 2) were adjusted by the test net proportions (Table 4) to give the following escapement estimates for the period June to September 4

-8shy

Species Total Count LQf Total

Chinook 2790 09 Coho 17013 53 Pink 91881 285 Chum 58273 181 Other 152537 AL2

322494 1000

Tables 3A 3B 3C 3D and 4D present this data by 3-day sample period Based on discussions with Al Menin and Dave Gaudet about the ability of sonar counters to discriminate between various target shapes and sizes any fish two and one half pounds or laterally compressed fish ~f one pound or larger could be counted by a sonar calibrated for pink salmon Fish other than salmon considered countable by the sonar counter included arctic char grayling burbot and broad humpback and Alaska whitefish

Peak adjusted apportioned sonar counts were on June 23 for chinook August 21 for coho July 18 for pink and July 25 for chum salmon (Tables 3A 3B 3C and 3D Figures 4A 4B 4C and 4D)

Representative passage rates on the south bank by sector and by hour for July 3-5 and August 21-23 are presented in Figures 6 and 7 These periods were chosen because of minimal adjustments to raw counts north bank counts are not presented due to lack of relatively clean data for those periods

Test Fishing

A total of 19 chinook (74 male - 26 female) 294 coho (61 male 39 female) 1156 pink (52 male - 48 female) and 915 chum (54 male - 46 female) was captured from May 27 to September 23 The fish were sampled and delivered to Hartha Nanouk a local subsistence fisherman as per agreement for the use of her traditional set-net site

Based on the single most effective test net CPUE the chinook migration did not peak as such but rather showed most consistent catches on June 22 and 23 coho migration peaked from August 10-14 pinks from July 18-22 and chum on July 13

-9shy

Comparisons of daily CPUE and cumulative CPUE for all salmon species are presented in Tables SA 58 5C and 5D and Figures 8 thru 15 Of interest although not as useful for annual comparison due to different test net methods net mesh sizes fishing time etc the actual fish caught from 1981 to 1983 are

~ 1982 un 41 chinook 39 chinook 39 chinook

107 coho 310 coho 294 coho 1463 pink 5114 pink 1156 pink

722 chum 375 chum 915 chum

f

Age Sex and Size Composition of Test Net Catches

An age analysis of scales collected during the project indicated the following age compositions king salmon all gear sizes (4-2131 5-2 22~ 5-3816-23217-2 3) coho salmon 5 14 and 5 78 gear (3-2 051 4-3 981 4-4 051 5-4 l) chum salmon 5 14 and 5 78 gear (3-1 21 4-1 611 5-1 37) Tables 7 thru 9D show the age composition of the various species broken down by date and the mesh sizes used during the project

Counting Towers

As cited visual tower counts could not be made on the Unalakleet River due to river width surface disturbances turbidity etc However visual observations proved invaluable in identifying spawning behavior etc and resulted in the downstream relocation of the north bank substrate and development of the method used to adjust north bank sonar counts

Drift SetsBeach Seines

Tables 6A and 68 present the results of drift sets and beach seines respectively Drift set results indicate that the portion of the river not isonified was not used by migrating salmon ie the species most countable coho pink and chum salmon would seem to follow the banks and were counted by the side-scan sonar

Beach seines proved useful in verifying the high presence of

-10shy

species other than salmon the relative abundance of coho salmon in August and the presence of spawning churn salmon in the south bank substrate area

Riyer SurveysAerial SurVeys

On July 29th 32 miles of the North River were surveyed by a two-person crew for the purpose of counting live chinook and sampling chinook carcasses A total of 166 live chinook were counted and 3 chinook carcasses were sampled with approximately half of the chinook counted between mile 25 and mile 32

Originally the Old Woman River survey was to be a six-day trip Due to the damage the plane suffered dropping the first crew member off the second member and support gear was not av~ilable for the survey as planned~ The survey of the Old Woman River August 6-8 counted 60 king salmon but only four samples were collected Weather prevented the survey of the main river

King Salmon Spo rt Fish Survey

A sport fishing lodge on the Unalakleet River is responsible for the majority of the sport fishing effort Periodic surveying of lodge personnel indicates that a fair quantity of king salmon are harvested by sport fishing A quantitative survey was not done however due to limited time available A total of 43 chinook was sampled from sport fishing catches

DISCUSSION

River levels were lower than normal during the spring of 1983 due to the lack of snow accumulation the previous winter The Unalakleet River cleared early and became quite low during late June and early July The low water allowed the counting towers at the sonar site to be used during calm survey days which wasnt possible during 1982

Tower observations made as early as June 28 showed serious milling problems at the north bank sonar site The sonar was moved to a new site on July 2 Milling fish were still a considerable problem at the new site but about half the hourly count were considered acceptable during mid-July Milling salmon were a problem through most of the field season Milling salmon of all four species were observed

-11shy

during the latter half of each respective migration Pink salmon presented the worst problem and churn the least Unfortunately milling pinks invalidated the churn count since the two runs overlap Coho salmon exhibited some milling but an accurate evaluation of this problem was hampered by turbid water Milling coho became a problem after August 20

The milling observed from the towers was not apparent to the observer at the oscilloscope because of the overwhelming number of spikes present at that stage of the salmon migration During 1982 when tower observations were not possible the oscilloscope appeared to have an extraordinary number of spikes The large pink salmon count recorded in 1982 may have been an artifact of milling behavior that was unobservable then Commercial catch and test net catch statistics indicate a large pink salmon run f However it is likely fish milling over the substrate exaggerated the sonar count although without tower observations it can not be proven

Another problem observed during the 1983 field season was avoidance of the substrate by all fish species This problem was at its worst when water was low and clear Angling the substrate slightly downstream as it was after July 15 helped considerably By extending the sonar beam periodically it was determined that as visibility decreased so did avoidance

Species apportionment of the sonar count was done using test net catches Some of the problems encountered with the sampling scheme should be pointed out Test nets were assumed to sample the same portion of the river as the sonar Since three net lengths were used this seemed suspect Different species migrate at different depths The non-salmon species tend to migrate in shallow water near shore and generally the larger species migrate in deeper water nearer mid-stream Since only a IS-fathom net of the most efficient type for non-salmon species was fished in the preferred habitat for these fish it is likely that the calculated efficiency was too high The other test nets were longer and also sampled some preferred areas for the targeted species

The opposite case is true for king salmon The 8 14 net is 20 fathoms longS fathoms shorter than the other nets used on this project This net does not cover all of the area preferred by king salmon This means king salmon

-12shy

escapement is probably underestimated but the 20 fathom net samples an area further out than the sonar counter even with its beam extended So the number of king salmon counted by the sonar is over estimated King salmon make up such a small percentage of the total salmon run that counting errors are more significant than this apportionment error

Very few churn and pink salmon were caught in the offshore end of the nets It is assumed these long nets had very little effect on the sonar count species apportionment

CONCLUSION

The feasibility of counting salmon in the Unalakleet River using side-scanning sonar is unlikely due to milling fish and the inal1ility to accurately apportion the sonar count to the various fish species It is possible that a partial escapement count could be made further up river above one or more of the major tributaries to the system The new north bank sonar site that showed some improvement over the former site had two differences that seemed to affect salmon migration The current was faster over the substrate at the second site and the river gravels were less ideal spawning habitat The new site was located below a rock bluff on the outside of a river bend

There are two similar sites up river about ten miles where the current is faster and the bottom is even less conducive to spawning During the 1984 field season a comparison of the smoother running south bank site and these up-river sites could be made The best time to do this would be during August when only coho salmon are migrating The counter should be operating by August 15 prior to milling activity and maintained for a week to evaluate if milling salmon became apparent later after the migration peaked The south bank site could be used as a control for comparison to 1983

-13shy

I I

5 1 2

Miles No tt h _

shy

R Iv er

Figure 1 Unalakleet Escapement Project

lt

Son sr

Fig u r e 2 S 0 0 a r Sit eSc hem a tic

ITower

Original Ninth Bank Sonar

Drift sets 5 minutes

Lf)

So t h Ban k Son a

lTower

o Work Tent

B Living Quarters

Figure 3Unalakleet Subsistence Survey 1983

Kin g- S a I m 0 n

1bull

10

9

c 8aI

-lE 11 t a til 7 ~ II 6 ~ U

5 til

0

c 4 til til

E 3 I

1 V

~ 2

1

27 1 5 10 15 20 25 30

~ June

Figure 4A Specie apportionment king salmon Un-alakleet sonar 1983

~

25

-l20

c 1 5 III () III

11

10

5

I

J

27 31 5 10 15 20 25 30 5 10 15 20 25 31

June Ju Iy

Figure 4B Specie middotapp~~tionment coho salmon Unalakleet sonar 1983

30

25

co ~

20

1 t~

C $

u 1 5 CD a

10

5

5 10 15 20 25 31 5 10 15 20 25 31 5

Ju August Sept e

Figure 4C Specie apportionment pink salmon Unalakleet sonar 1983

1 6

1 5

14

1 3

12

1 1

c II U CII

Ashy

10

9

a

7

01 ~

6

5

4

3

2

1

1 5 10 1 5

June

2 O 25 30 5 10 15 20

Ju Iy

25 31 5 10 15 20

August

25 31 5 10

Septem

Figure 40 Species apportionment chum salmon Unalakleet sonar 1983

16

1 5

1 4

13

1 2

1 1

10

9 c 8GI U

GI middot7 A

6

5

4

3

2

1

~

o N

~

1 5 10 15 20 25 30 5 10 15 20 25 3 1 5 10 15 20 25 31 5 10

June Ju Iy August Sept e

Figure 5 Specie apportionment Unalakleet sonar 1983

50

4

40

35

c J 30 0 U

~ 0 25 0 c Q)

u ~

Q) 20a

15

10

5

o L-_lt---__

King Coho Pink Chum Misc

21

----

Figure 6 Sector distribution of counts Unalakleet sonar1983

35

30

25

c 20 G)

() G) 15

0

10

5

35

30

25 c G)

() 20

G)

0 15

10

5

( s ()u t h ban k )

July 3-5

~-2 4 6 8 1 0 1 2 1 4 1 6shy

Sector

August 21-23

2 4 6 8 10 12 14 16

Sector

22

Figure 7 Hourly distribution of counts Unalakleet sonar 1983

(south bank)

14

12

10

c 8 GI U ~

6

July 3-5

~GI

I =~ Q

4

2 0

2 4 6 8 10 12 14 1 6 18 20 22 24

TIme

9

8

7

6

5 c GI U ~ 4 GI

Q

3

2

August 21-23

1

0

2 4 6 8 10 12 14

TIme

16

23

18 20 22 24

Figure 8 Unalakleet River Test Fishing Daily King CPUE in 8 14 mesh 1983

10

9 N

8 shy

7 I 0 c 6E

n

l J I I

0 0 5 c (J 4 co 0

3

2

1

I I

27 1 5 10 15 20 25 1 5 10 15 20 25 31

~ June July

Figure 9 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1983bull

~

middot10

09 U N

I 08 0 c 07E I ()

- 06 E-0 0 05 shy~ () 04 ca - ()

03E I 0 02

01

27 1 5 10 15 2Q 25 1 5 10 15 20 25 31

June July

Figure 10 Unalakleet River Test Fishing Daily Coho CPUE in 5 78 mesh 1983

1

6

5

I 0

NI II I 0 t

E 4

0 0 c 3() cu 0

2

1

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sept U

Figure 11 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1983

200

175

150

I 0 c 125E I ()

E

r-shy-0 I I N 0 100 c ()-as ()

75E I 0

50

25

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sel ber

20

Figure 12 Unalakleet River Test Fishing Daily Pink CPUE in 4 mesh 1983

18

I

0) N

II

16

I ishy

14 J 0 t 12shyE 0 10 0 shys 8 () as

0 6 1 I V 4

2

~ I

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

--

Figure 13 Unalakleet River Test Fishing Cumulat ive Pink CPUE in 4 mesh 1983

10

9 01 N 8

J 0 J 7 E J 0 6 E- 50 ~

amp 4() ca

0 3 E J

0 2

1

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

Figure 14 Unalakleet River Test Fishing Daily CPUE in 5 14 amp 5 78 mesh 1983

14

13shy

12

11

10

9 J 0 8

I z shy-E 7 0 0 shys ~u aI 0

4 I

31

2

1

II

0 C1)I 11

I I I II

bull y AA(net changed to 5 78

AA A 11 I

~ I~ V ~

- I

VI

1 5 10 15 20- 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

cJune July August

Figure 15 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 14 amp 5 78 mesh 1983

It

5

--l C)

net changed to 5 78

~ 4 o

c E (J ~

3E o o c 2 u ~ -(J

E ~ (J 1

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 16 Unalakleet River Test Fishing Catch Proportions 1983

60

55

---- King50

__ Coho 45

P--Q Pink

40 __ Chum

I LU 35J D I 0

30 ICQ 0 25 I

N Cl0 20

c G)

15u G)

D

10

5 A 1 I

I 4 I

I I

3 lt

~

2

I I1 - I bull I

I ~ ~ ~ t -J ~~ - _

r

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 17 Unalakleet Area Temperatures 1983

18

16

14

12

til 10I

u-G) 80 CI) G) G) 6 C) G)

Q 4

2

C) C)

__ Air

0--0 River 2

0

-2

-4

---------~ ~

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August 5e

4

Figure 18 Unalakleet River Turbidity and Depth 1983

__ Secchi Reading

-t ()

II) G)-G)

3

iE 2

1

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August

~ 1 _ ~ r--- I shy I __ I 01 --shy

Figure 19 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1981-83

27 31 5

May

_1981

____ 1982

o 0 1983 11) C)

Changed to 5 78 mesh

I

t

~-~o-~ Q-O--Oolt)-(IQ-----l

--1

_10 15 20 25 30 5 10 15 20 25 31

June July

I I I

~

0 ~

r E ~

CJ shyE 0 0 I

shyr u-cu CJ

E ~

CJ

4

35

30

25

20

15

10

05

Figure 20 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 78 mesh 1981-83

5

4 lI 0

z

E lI 0 3 E-0 0 2 r CJ-cu 0

E lI 1 0

__1981 ~~

~ ___1982

a 01983 5 148 mesh from 65-810

_----shy-- 0 - -- C1) A - _ - ~

~ I

I

II I I I I I

I I

1

~ -

-

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 21 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 mesh- 1981-83

8

70

60

50

40 0

r 30E

0 20E-0 0 10 s= u 8 tV 0 6E 0 4

2

__1981 ____ 1982

_1983

shy--- -- shy--- shy J - -

I

I

C1- J

I

-----l---l ~--~r---------------r--

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 22 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1981-83

_1981

~ __ 1982

~1983

25

00I _ __ _ _ C)~ I __ _ I

I V o 20 rt I I

E I AshyI o E 15-o o z u 10 tU o E I o 5

I

1 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

July August 5

----------------------------------------------------------------

Table 1 Unalakleet River Subsistence King Salmon Index 1983

Number of Number of Date Fishermen Chinook Average

08 02 18 05 05 00 02 58 92 62 72 72 42 28 52 60 62 20 47 50 35 25 15

June 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Totals

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 4 4 4

4

3 1 7 2 2 o 1

23 37 25 29 29 17 11 21 24 25

6 14 15 14 H~

6

322

~

39

---------------------- ---------- --------------------------------------

----------------------------------------------------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983

Daily Proportion Cumu1 Prop Date South North Total of Total Cumulative of Total

64 7 23 30 1313131 313 013131 65 44 187 231 00137 261 01308 66 12 162 174 01305 435 01313 67 8 283 291 1313139 726 01322 68 0000 726 13022 69 3 221 224 013137 950 13029 610 26 245 271 131308 1221 13037 611 56 254 310 131310 1531 131347 612 44 736 780 013 24 2311 13071 613 64 1188 1252 01339 3563 01113 614 59 1752 1811 0056 5374 0166 615 97 844 941 01329 6315 0195 616 165 729 894 0028 7209 0223 617 151 i 604 1755 0054 8964 middot 0277 618 i ll 1524 1635 0051 10599 13328 619 175 2000 2175 0067 12774 13395 620 171 21320 2191 0068 14965 0463 621 220 1613 1833 0057 16798 0520 622 199 2065 2264 0070 19062 0590 623 362 21334 2396 0074 21458 13664 624 876 3403 4279 13133 25737 0797 625 1244 2023 3267- 0101 29004 0898 626 738 1601 2339 0073 31343 0971 627 573 3265 3838 0119 35181 1090 628 547 1868 2415 0075 37596 1165 629 528 4028 4556 0141 42152 1306 630 430 430 0013 42582 1319 71 240 240 01307 42822 1326 72 201 975 1176 0036 43998 1362 73 309 8842 9151 0284 53149 1646 74 475 6385 6860 0213 60009 1859 75 565 3342 3907 0121 63916 1980 76 1377 2094 3471 0108 67387 2088 77 1416 3173 4589 0142 71976 2230 78 1472 1420 2892 0090 74868 2320 79 2071 1452 3523 01113 78391 2430 710 3318 2434 5752 0178 84143 2608 711 2673 2866 5539 13172 89682 2780 712 1665 1747 3412 13106 93094 2886 713 21317 1951 3968 13123 97062 3009 714 2991 2664 5655 0175 102717 3184 715 2646 2548 5194 13161 107911 3345 716 2488 2886 5374 0167 113285 3512 717 1585 4063 5648 0175 118933 3687 718 3559 9326 12885 0400 131818 4087 719 2948 2398 5346 13166 137164 4253 720 1640 3330 4970 0154 142134 4407 721 2416 6420 8836 0274 150970 4681 722 3298 3298 0102 154268 4783 723 5007 5007 0155 159275 4938

40

--------------------------------------------------------------------

--------------------------------------------------------------------

-----------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983 (Continued)

Daily Proportion Cum Prop Date South North Total of Total Cumu1at i ve of Total

724 4005 7804 11809 0366 171084 5304 725 2453 3392 5845 0181 176929 5485 726 2166 12094 14260 0442 191189 5927 727 1914 4472 6386 0198 197575 6125 728 1603 3463 5066 0157 202641 6282 729 1251 1914 3165 0098 205806 6380 730 1710 2495 4205 en30 210011 6510 731 2542 1887 4429 0137 214440 6647 81 4479 2271 6750 0209 221190 6856 82 1103 1806 2909 0091 224099 6947 83 1719 942 2661 0083 226760 bull 7030 84 1519 2557 4076 0126 230836 7156 85 1259 1113 2372 0074 233208 7230 86 940 2189 3129 0097 236337 7327 87 1467 4354 5821 0180 242158 7507 88 2318 1584 3902 0121 246060 7628 89 2098 1505 3603 0112 249663 7740 810 2629 1517 4146 bull 0129 253809 7869 811 3753 1091 4844 0150 258653 8019 812 1489 523 2012 0062 260665 8081 813 744 353 1097 0034 261762 8386 814 981 981 bull 0030 262743 8145 815 2324 2324 0072 265067 8217 816 2638 2638 0082 267705 8299 817 2073 731 2804 0087 270509 8115 818 2244 675 2919 0091 273428 8477 819 3240 696 3936 0122 277364 8599 820 2363 503 2866 0089 280230 8688 821 6789 1111 7900 0245 288130 8933 822 6489 563 7052 0219 295182 9152 823 5077 298 5375 0167 300557 9319 824 2616 298 2914 0090 303471 9409 825 3933 412 4345 0135 307816 9544 826 1393 554 1947 0060 309763 9604 827 1203 463 1666 0052 311429 9656 828 1197 542 1739 0054 313168 9710 829 1244 221 1465 0045 314633 9755 830 1011 199 1210 0038 315843 9793 831 718 214 932 0029 316775 9822 91 1324 318 1642 0052 318417 9874 92 1362 307 1669 0052 320086 9926 93 1146 314 1460 0045 321546 9971 94 652 296 948 bull 0029 322494 10000

148465 174029 322494 10000

41

----------------------------------------------------------------------

-------------------------------------------------------------------- --

------

TABLE 3A Unalakleet River Species Apportionment by Test Period King Salmon 1983

3-Day App Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 76 0272 76 0272

69-612N 28 0100 104 0372

612N-615 461 1652 565 2024

616-619N 419 1502 984 3526

619N-622 170 0609 1154 4135

623-626N 722 2588 1876 6723

626N-629 264 0946 2140 7669

630-73N 103 0639 2243 8038

73N-76 188 0674 2431 8712

77-710N 0 0000 2431 8712

710N-713 0 0000 2431 8712

714-717N 267 0957 2698 9969

717N-720 0 0000 2698 9669

721-724N 92 0331 2790 1 0000

724N-727 0 0000 2790 10000

728-731N 0 0000 2790 1 0000

731N-83 0 0000 2790 1 0000

2790 10000

42

Dates

714-717N

717N-720

721-724N

724N-727

728-731N

731N-83

84-87N

87N-810

811-814N

814N-817

818-821N

821N-824

825-828N

828N-831

91-94

TABLE 3B Unalakleet River Species Apportionment by Test Period Coho Salmon

3-Day Count

583

338

436

550

2650

1174

793

1435

5074

1280

435

2265

171H3

1983

Proportion of Season Total

0000

0000

0000

0343

0199

0256

0323

1558

0690

0466

0843

2983

0752

0256

1331

Cumulative Count

583

921

1357

1907

4557

5731

6524

7959

13033

14313

14748

17013

Cumulative Proportion

0000

0000

0000

0343

0542

0798

1121

2679

3369

3835

4678

7661

8413

8669

10000

43

------------------------------------------------------------------

------------------------------------------------------------------

----- ------

TABLE 3C Unalakleet River Species Apportionment by Test Period Pink Salmon 1983

3-Day P roport ion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 0 0000

6l2N-615 0 0000

616-6l9N 97 0012

6l9N-622 332 0036

623-626N 1245 0136

626N-629 6624 0721

630-73N 3699 0403

73N-76 10762 1171

77-7l0N 7704 0838

710N-7l3 8529 0928

714-717N 9771 1063

717N-720 13845 1507

721-724N 11361 1236

724N-727 6544 0712

728-731N 3545 0386

731N-83 1628 0177

84-87N 1224 0133

87N-810 1777 0193

811-814N 802 0087

814N-817 561 0061

818-821N 533 0058

821N-824 8313 13091

825-828N 468 0051

828N-831 0 0000

91-94 0 0000

91881 10000

0 0000

0 0000

0 0000

97 0012

429 0048

1674 0184

8298 0905

11997 1308

22759 2479

30463 3317

38992 4245

48763 5308

62608 6815

73969 8051

80513 8763

84058 9149

85686 9326

86910 9459

88687 9652

89489 9739

90050 9800

90583 9858

91413 9949

91881 10000

91881 10000

91881 1 0000 44

------------------------------------------------------------------

------------ ------------------------------------------------------

----- ------

TABLE 3D Unalakleet River Species Apportionment by Test Period Chum Salmon 1983

3-Day Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 100 0017

612N-615 268 0046

616-619N 838 0144

619N-622 1180 0202

623-626N 2744 0471

626N-629 1569 0270

630-73N 796 0137

73N-76 2972 0510

77-710N 2068 0355

710N-713 2622 0450

714-717N 4133 0710

717N-720 5596 0960

721-724N 4978 0854

724N-727 8974 1540

728-731N 2241 0385

731N-83 2079 ~0357

84-87N 3009 0516

87N-810 2432 0417

811-814N 937 0161

814N-817 454 0078

818-821N 2584 0443

821N-824 2739 0470

825-828N 1783 0306

828N-831 765 0131

91-94 412 0070

58273 10000 45

0 0000

100 0017

368 0063

1206 0207

2386 0409

5130 0880

6699 1150

7495 1287 f

10467 1797

12535 2152

15157 2602

19290 3312

24886 4272

29864 5216

38838 6666

41079 7051

43158 7408

46167 7924

48559 8341

49536 8502

49990 8580

52574 9023

55313 9493

57096 9799

57861 9930

58273 1 0000

-------------------------------------------------------------

------------------------- ------------------------------------

TABLE 4 Unalakleet River Test Net Proportions by Sample Perio-d 1983 ( Selective CPUE)

Dates Chinook Coho Pink Chum Misc

64-68 105 00 00 895

69-612N 24 00 83 893

612N-615 1C~ 5 00 61 834

616-619N 78 18 156 748

619N-622 23 45 160 772

623-626N 65 112 247 576

626N-629 22 553 131 294

630-73N 16 576 124 284

73N-76 10 572 158 260

77-710N 00 555 149 296

710N-713 00 540 166 294

714-717N 14 00 513 217 256

717N-720 00 00 532 215 253

721-724N 04 00 493 216 287

724N-727 00 18 202 277 503

728-731N 00 23 242 153 582

731N-83 00 30 112 143 715

84-87N 44 98 241 617

87N-810 182 122 167 529

811-814N 139 95 111 655

814N-B17 96 68 55 7B1

B18-B21N 105 39 1B9 667

821N-824 263 43 142 552

825-B28N 145 53 202 600

828N-831 97 00 171 732

91-94 396 00 72 532

46

--------

--------

TABLE 4 Una1ak1et River Test Net Proportions 1983 ( Selective CPUE) (Continued)

Comparative Apportionment

Species Apportionment

Chinook 2790 Coho 17013 Pink 91881 Churn 58273

------shySubtotal 169957

Misc Species 152537 ------shy

Total 322494

Substrate Comparison -------------------shy

Bank Counts -----shy

South 148465 North 174029

------shy

Total 322494

Percent of Total Counts

09 53

285 181

5408

472

1000

Percent

460 540

1000

47

-------------------------------------------------------------------

TABLE 5A Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

May 27 28

21 5 482

13 13

1313

1313 21 5 697

13 13

1313

1313 30 240 0 013 937 0 00 31 246 2 41 1183 2 08

June 1 237 0 00 1420 2 07 2 3

256 585

13 13

013 bull 13 13

1676 2 261

2 2

6bull 13 4

5 6 8

160 120 middot 125

13 1

13 42 130

2 421 2541 2666

~ 2 3 3

bull 13 4 136 136

9 122 0 130 2788 3 05 11 117 00 2905 3 05 12 126 13 00 3031 3 05 13 117 1 43 3148 4 06 15 118 0 013 3266 4 136 16 116 1 43 3382 5 138 18 240 13 130 3622 5 07 19 121 0 00 3743 5 07 20 116 0 00 3859 5 136 22 118 1 42 3977 6 138 23 119 1 42 4196 7 08 25 240 0 013 4336 7 138 26 119 13 1313 4455 7 138 27 119 13 1313 4574 7 138 29 1213 13 130 4694 7 137 313 1213 13 00 4814 7 07

July 2 238 0 1313 51352 7 07 3 118 13 013 51713 7 07 4 118 1 42 5288 8 138 6 122 0 00 5410 8 07 7 116 13 00 5526 8 07

10 126 0 1313 5652 8 07 11 119 0 013 5771 8 07 13 116 13 130 5887 8 07 14 119 2 84 6006 10 07 17 122 0 00 6128 10 07 18 112 0 1313 6240 10 136 20 119 13 00 6359 10 06 21 112 0 013 6471 10 06

6471 10

48

------------------------------------------------------------------

------------------------------------------------------------------

TABLE 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983

Cum Cum Date Hours Catch CPUE Hours Catch CPUE

July 24 26

115 120 0 00

115 235

0 0

00

00 27 117 4 00 352 0 00 29 117 0 137 469 4 34 31 116 3 103 585 7 48

August 2 122 0 00 706 7 40 3 122 2 66 828 9 43 5 118 1 34 946 10 42 7 128 14 437 1074 24 89 9 257 14 218 1331 38 114

10 125 21 672 1456 59 162 12 13 middot- 0 00 1469 x 59 161 14 10 7 12 449 1576 71 180 16 122 2 66 1698 73 172 17 123 6 196 1821 79 174 19 118 1 34 1939 80 165 21 112 6 214 2051 86 168 23 120 3 100 217 1 89 164 24 115 2 70 2286 91 159 26 115 5 174 2401 96 160 28 119 0 00 2520 96 152 30 119 4 1 34 2639 100 152 31 117 1 34 2756 101 147

Sept 2 123 5 33 2879 106 147 4 479 15 125 3358 121 144 6 238 11 185 3596 132 147 7 237 5 84 3833 137 143 8 238 6 1 01 4071 143 141 9 242 10 1 65 4313 153 142

10 242 3 50 4555 156 137 11 242 2 33 4797 158 132 12 241 8 133 5038 166 132 14 227 14 247 5265 180 137 15 242 9 149 5507 189 137 16 210 3 57 5717 192 134 17 239 2 33 5956 194 130 18 230 2 35 6186 196 127 20 489 4 33 6675 200 120 21 24 3 50 6915 203 117 22 242 0 00 7157 203 113 23 234 1 17 7391 204 110

----shy

7391 204

Mesh size = 5 14 from 724 to 810

49

------------------------------------------------------------------

TABLE 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE ------~-----------------------------------------------------------June 16 122 1 33 122 1 33

17 118 0 bull 0 0 240 1 17 20 120 2 67 360 3 33 21 118 0 00 478 3 25 23 119 2 67 597 5 34 24 119 3 102 716 8 45 27 116 19 655 832 27 130 28 120 22 733 952 49 206 30 120 40 1333 1072 89 332

July 1 115 36 1252 1187 125 421 4 122 30 983 1309 155 474 5 114 47 1649 1423 202 568 7 118 30 1016 1541 232 602 8 120 shy 24 800 1661 -$ 256 616

11 122 42 1377 1783 298 669 12 120 29 967 1903 327 687 14 116 37 1276 2019 364 721 15 118 40 1356 2137 404 756 18 121 60 1976 2258 464 822 19 119 30 740 2377 494 831 21 125 61 1952 2502 555 887 22 118 25 847 2627 580 883 25 122 16 525 2749 596 867 26 116 15 517 2865 611 853 28 122 28 918 2987 639 856 29 117 11 376 3104 650 838

August 1 120 7 233 3224 657 815 2 119 9 303 3345 666 796 4 120 3 100 3465 669 772 5 118 5 170 3583 674 752 8 114 7 245 3697 681 734

11 123 7 337 3 82 0 688 720 15 118 2 68 3938 690 701 16 113 5 177 4051 695 686 18 98 3 122 4149 698 673 19 119 1 34 4268 699 655 22 112 0 00 4380 699 638 23 115 0 00 4495 699 622 25 120 2 66 4615 701 606 26 112 1 36 4727 702 594 29 116 0 00 4843 702 580 30 11 5 0 00 4958 702 566

Sept 1 115 0 00 5079 702 553 2 112 0 00 5191 702 541

----shy5079 702

50

-----------------------------------------------------------------

------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

June 5 73 0 00 73 0 00 7 126 0 00 199 0 00 8 127 0 00 326 0 bull 0 0

10 11 4 3 105 440 3 27 12 113 2 71 553 5 36 14 119 1 34 672 6 36 15 116 4 138 788 10 51 17 116 3 103 904 13 56 19 118 6 203 1022 19 74 21 118 0 00 1140 19 67 22 117 10 342 1257 29 92 24 116 3 103 1373 32 93 26 119 11 370 1492 43 115 28 11 8 6 203 1610 $ 49 122 29 115 13 452 1725 62 144

July 1 119 8 269 1844 70 152 3 119 17 571 1963 87 177 5 119 13 437 2082 100 192 6 12 0 17 567 2202 117 213 8 121 7 231 2323 124 214

10 11 4 18 632 2437 142 233 12 115 12 417 2552 154 241 13 116 37 1276 2668 191 286 15 117 16 547 2785 207 297 17 11 8 31 1051 290 3 238 328 19 118 18 610 3021 256 339 20 115 29 1009 3136 285 364 22 122 17 557 3258 302 371 24 115 24 835 3373 326 387 26 120 19 633 3493 345 395 27 117 11 376 3610 356 394 29 117 14 479 3727 370 397 31 116 18 621 3843 388 404

August 2 121 9 298 3964 397 401 3 122 17 557 4086 414 405 5 11 8 8 271 4204 422 402 7 128 19 594 4332 441 407 9 257 10 156 4589 451 393

10 125 14 448 4714 464 394 12 13 1 308 4727 465 393 14 107 5 187 4834 470 389 16 122 4 131 4956 474 383 17 123 15 488 5079 489 385 19 118 8 271 5197 497 383 21 112 3 107 5309 500 378 23 120 6 200 5429 506 373 24 115 7 243 5544 513 370

51

-----------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 (Continued)

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

August 26 115 5 174 5657 518 366 28 119 1 34 577 6 519 359 30 119 4 134 5895 523 355 31 117 0 00 6012 523 3 48

Sept 2 123 3 98 613 5 526 343 4 479 2 17 6614 528 319 6 238 1 17 6852 529 309 7 237 0 00 7089 529 298 8 9

238 242

1 2

17

33 7327 7569

clt

530 532

289 281

10 242 3 50 7811 535 274 11 242 0 00 8053 535 266 12 241 2 33 8294 537 259 14 227 3 53 8521 540 253 15 242 0 00 8763 540 246 16 210 1 19 8973 541 241 17 239 2 33 9212 543 236 18 230 0 00 9442 543 230 20 489 0 00 9931 543 219 21 240 2 33 10171 545 214 22 242 0 0 10413 545 209 23 234 0 00 10647 545 205

----shy

10647 545

52

------------------------------------------------------------------------

------

TABLE 6A Unalakleet River Sonar Site Drift Sets5 1 4n Me sh 19 83 bull

Date Time Result

July 19 1405-1413 1 burbot July 23 1040-1055 1 pink caracass July 27 1520-1530 1 coho August 3 1444-1501 4 coho August 22 1930-1937 0 August 23 937-943 1 coho 1 pink carcass August 26 1117-1127 1 coho 3 churn August 31 1018-1034 3 churn

TABLE 6B Unalakleet River Sonar Site Beach Seines 1983

Date Time Distance Result

July 20 1445 120 meters 4 pink 1 churn 13 Dolly Varden 1 whitefish

July 25 1500 120 meters 6 pink 1 churn 1 Dolly Varden 4 whitefish 1 grayling

July 28 1700 120 meters 4 coho 2 pink 2 churn 1 Dolly Varden

August 1 2010 300 meters 4 pink 3 churn 8 Dolly Varden

August 4 1015 130 meters 5 coho 3 pink 3 churn 65 Dolly Varden 3 whitefish 3 grayling

August 24 1110 130 meters 18 coho 2 Dolly Varden 2 grayling

August 29 1715 120 meters 11 coho 1 pink 69 churn 1 Dolly Varden 2 grayling

Seine done at mile 12 Unalakleet River

53

--------------------------------------------------------------------------------------------------

--------------------------------------------------------------------------------------------------

TABLE 7 AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER CATCH SAMPLE SPORT CATCH AND SPAWNING SURVEYS 1983

II

COMBINED 3-2 4-2 4-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 31 646 6702 5 104 5010 8 167 5688 1 21 5900

Female 17 354 8540 o o 1 21 5450 o o

Total 48 1000 7353 5 104 5010 9 188 5661 1 21 5900

~ 11)

5-2 6-2 7-2 7-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 11 229 7382 6 125 8350 0 0 0 0

Female 2 42 7925 12 250 8742 1 21 10650 1 21 8350

Total 13 271 7465 18 375 8611 1 21 10650 1 21 8350

TABLE 8A AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER TEST NET SAMPLE 1983

-----~-------------------------------------------------------------------------------------------------------

gt

COMBINED 4-2 5-2 5-3 6-2 7-2 NO LENGIH NO LENGIH NO LENGIH NO LENGTH NO LENGTH NO LENGTr

8 14 n

Male 3 333 8107 0 1 111 5800 o 0 2 222 9260 0 0 Female 6 667 8295 0 0 1 111 7600 o o 4 444 8310 1 111 8930 Total 9 10 e 0 8232 0 o 2 222 6700 o o 6 667 8627 1 111 8930

If) If)

5 14 Male 19 1000 6298 12 632 5392 4 211 6990 0 o 3 158 8997 0 0 Female o 0 o o o o o o 0 0 0 0 Total 19 1000 6298 12 632 5392 4 211 6990 o o 3 158 8997 0 0

4 n or Smaller Male 6 667 5930 1 111 4660 2 222 6325 3 333 6090 0 o 0 o Female 3 333 8970 o o o o o o 3 333 8970 0 o Total 9 1000 6943 1 111 466 2 222 6325 3 33 3 6090 3 33 3 8970 0 0

TOTAL Hale 28 757 6413 13 351 5336 7 189 6630 3 8 1 6090 5 13 5 9102 o 0 Female 9 243 852 o o 1 27 7600 o o 7 189 8593 1 2 7 8930 Total 37 1000 6925 13 351 5336 8 216 6751 3 8 1 6090 12 324 88 e 5 1 2 7 8930

---------------------------------------------------------------------------------------------------------

---------------------------------------------------------------------------------------------------------

TABLE 8B AGE SEX AND SIZE COMPOSITION OF NORTON SOUND COHO SALMON UNALAKLEET RIVER TEST NET SAMPLE 5 14 AND 5 78 GEAR 1983

COMBINED 3-2 4-3 4-4 5-4 NO LENGIH NO LENGIH NO LENGTH NO LENGIH NO LENGTH

Male 9 900 5489 0 0 9 900 5489 0 0 Female 1 10 bull 0 552 QJ QJ 0 1 10QJ 5520 0 0 Total 10 1000 5492 0 0 10 1000 5492 0 0 725-731

bull LI)Male 15 938 5645 15 938 5645 Female 1 62 575 QJ 1 62 575 QJ Total 16 lQJ0QJ 5651 16 100QJ 5651 81-87

Male 24 545 5668 23 523 5768 1 23 3350 Female 20 455 5631 20 455 5631 0 0 Total 441QJ0QJ 5651 43 977 57 QJ 4 1 23 335 QJ 88-814

Male 7 500 5797 7 500 5797 QJ 0 Female 7 500 5596 6 429 5587 1 71 5650 Total 14 1000 5696 13 929 1 71 5650570 815-821

Male 5 455 5492 5 455 5492 Female 6 545 5552 6 545 5552 Total 11 lQJ00 5525 11 100QJ 5525 822-828

The ten fathom 8 14 gillnet was set from May 27 to May 31 A twenty fathom 8 14 gillnet was set on June 1 and fished until June 4 From June 5 to September 4 the period of sonar operation a rotating schedule of twelve hour time blocks over a period of three days was used The nets used included

1 20 fm 8 14 mesh 2 25 fm 5 14 mesh (June 5-August l025 fm 5 78

mesh (August II-September 4) 3 25 fm 4 mesh 4 15 fm variable mesh

The 25 fm 5 78 mesh gillnet was fished from September 5 to September 25 The 8 14 mesh net and the v~riable mesh net were fished concurrently The three-day rotation schedule allowed each net to be fished during one 12-hour high tidedaylight period and one 12-hour low tidenight period Nets were rotated at 0900 and 2HJ0 daily The 8 14 mesh net was removed from the rotation on July 21 because the chinook migration was completed

The CPUE (catch100 fm-hr) was calculated for the two most efficient nets for each species to be used in apportioning sonar counts These CPUEs for chinook coho pink chum and other species presumably detectable by sonar were totaled and the species CPUE divided by the total CPUE for all species to give the percent of the periods sonar counts to each specie The seventh day of the week was apportioned by using the previous 3-day proportions for one half of the counts and the following 3-day proportions for the second half of the counts

Test net data (Tables 5A 5B 5C and 5D) was calculated for the single most effective net for each species for separate analys is

Weights lengths and scale samples were taken from all chinook coho and chum captured Pink salmon were counted only Tissue samples were taken from test net chinook salmon for electrophoretic studies coordinated by the Stock Separation Section of the Commercial Fisheries Division

Counting Towers

Counting towers were erected immediately adjacent to the

-6shy

onshore end of each substrate (Figure 2) As in 1982 the use of visual tower counts for comparison with sonar counts could not be relied upon due to river width surface disturbances etc however several short comparisons were possible The towers proved invaluable in determining the presence of moribund fish debris passage presence of oscars fish swimming behavior etc The 1983 low river level and generally less turbidity as compared to 1982 allowed more rapid and concrete identification of the milling fish Without use of the tower the severity of the milling fish problem may not have been discovered

Drift SetsBeach Seines

Drift sets and beach seines were done for comparison with test net species apportionment and to determine fish passage beyond the sonar counting range Drjft sets were accomplished by drifting a 25 fm 5 14 gillnet perpendicular to the shore The 25 fm net allowed the major portion of the river to be fished thus only one drift was done per set as opposed to 1982 when a drift set was done near each bank Set durations ranged from 5 to 17 minutes dependent upon boat traffic wind conditions etc Drift sets were done on July 19 23 and 27 and August 3 22 23 26 and 31

Beach seines were accomplished by using a 25 fm 3 mesh seine immediately downstream of the south bank substrate Shoreline conditions prevented se1n1ng near either north bank site Beach seines on the south bank were done on July 20 25 and 28 and August 1 and 29 Beach Unalakleet River were done on August 4 and levels prevented seining from August 4 to

seines 24

24

at High

mile 12 water

Riyer Surveys

Two river surveys were attempted during 1983 A jet boat was taken up the North River on July 29 This proved to be early for carcass sampling but weather and equipment problems prevented a later survey

A float trip of the Old Woman and upper Main River was also made A plane landing mishap greatly reduced the scope of this trip Weather prevented any follow up work

Subsistence Surveys

A daily survey of three to five sUbsistence fishermen is

-7shy

made from the time the first king salman is caught early in June through the remainder of that month These people must be trustworthy conscientious about checking their nets and fairly successful The average daily catch is compared to the previous day to develope the annual trend and the total catches and the annual trend is compared to past years Commercial catch and effort data and the up-river test net data are used in conjuction with the subsistence catch to anticipate strategies

future catches and management

During late September made of Unalakleet

an The

extensive door to door survey is Annual Management Report covers

subsistence surveys in detail

RESULTS

~istence Survey

The Unalakleet subsistence survey made in late September interviewed 74 subsistence fishermen 68 of whom fished in the river and 17 who fished in the ocean The catch was predominantly from the river with 1480 king 6311 coho 13458 pink and 4124 chum salmon reported The ocean subsistence catch was 388 king 577 coho 350 pink and 277 chum salmon

The mean chinook salmon catch per fisherman peaked on June 16 This compares with July 3 in 1982 and June 19-22 in 1981 All subsistence fishermen surveyed in 1983 were fishing within one mile of the river mouth

Chinook subsistence survey results are presented in Table 1 and Figure 3 As in 1981 and 1982 the variances in nets fishing times and net locations call for calculation of mean catch per fisherman as opposed to catch per unit effort

Sonar

During the period from June 4 to September 4 the final sonar count was 322494 148465 (460) counts were tallied on the south bank and 174029 (540) counts were tallied on the north bank

The daily sonar counts (Table 2) were adjusted by the test net proportions (Table 4) to give the following escapement estimates for the period June to September 4

-8shy

Species Total Count LQf Total

Chinook 2790 09 Coho 17013 53 Pink 91881 285 Chum 58273 181 Other 152537 AL2

322494 1000

Tables 3A 3B 3C 3D and 4D present this data by 3-day sample period Based on discussions with Al Menin and Dave Gaudet about the ability of sonar counters to discriminate between various target shapes and sizes any fish two and one half pounds or laterally compressed fish ~f one pound or larger could be counted by a sonar calibrated for pink salmon Fish other than salmon considered countable by the sonar counter included arctic char grayling burbot and broad humpback and Alaska whitefish

Peak adjusted apportioned sonar counts were on June 23 for chinook August 21 for coho July 18 for pink and July 25 for chum salmon (Tables 3A 3B 3C and 3D Figures 4A 4B 4C and 4D)

Representative passage rates on the south bank by sector and by hour for July 3-5 and August 21-23 are presented in Figures 6 and 7 These periods were chosen because of minimal adjustments to raw counts north bank counts are not presented due to lack of relatively clean data for those periods

Test Fishing

A total of 19 chinook (74 male - 26 female) 294 coho (61 male 39 female) 1156 pink (52 male - 48 female) and 915 chum (54 male - 46 female) was captured from May 27 to September 23 The fish were sampled and delivered to Hartha Nanouk a local subsistence fisherman as per agreement for the use of her traditional set-net site

Based on the single most effective test net CPUE the chinook migration did not peak as such but rather showed most consistent catches on June 22 and 23 coho migration peaked from August 10-14 pinks from July 18-22 and chum on July 13

-9shy

Comparisons of daily CPUE and cumulative CPUE for all salmon species are presented in Tables SA 58 5C and 5D and Figures 8 thru 15 Of interest although not as useful for annual comparison due to different test net methods net mesh sizes fishing time etc the actual fish caught from 1981 to 1983 are

~ 1982 un 41 chinook 39 chinook 39 chinook

107 coho 310 coho 294 coho 1463 pink 5114 pink 1156 pink

722 chum 375 chum 915 chum

f

Age Sex and Size Composition of Test Net Catches

An age analysis of scales collected during the project indicated the following age compositions king salmon all gear sizes (4-2131 5-2 22~ 5-3816-23217-2 3) coho salmon 5 14 and 5 78 gear (3-2 051 4-3 981 4-4 051 5-4 l) chum salmon 5 14 and 5 78 gear (3-1 21 4-1 611 5-1 37) Tables 7 thru 9D show the age composition of the various species broken down by date and the mesh sizes used during the project

Counting Towers

As cited visual tower counts could not be made on the Unalakleet River due to river width surface disturbances turbidity etc However visual observations proved invaluable in identifying spawning behavior etc and resulted in the downstream relocation of the north bank substrate and development of the method used to adjust north bank sonar counts

Drift SetsBeach Seines

Tables 6A and 68 present the results of drift sets and beach seines respectively Drift set results indicate that the portion of the river not isonified was not used by migrating salmon ie the species most countable coho pink and chum salmon would seem to follow the banks and were counted by the side-scan sonar

Beach seines proved useful in verifying the high presence of

-10shy

species other than salmon the relative abundance of coho salmon in August and the presence of spawning churn salmon in the south bank substrate area

Riyer SurveysAerial SurVeys

On July 29th 32 miles of the North River were surveyed by a two-person crew for the purpose of counting live chinook and sampling chinook carcasses A total of 166 live chinook were counted and 3 chinook carcasses were sampled with approximately half of the chinook counted between mile 25 and mile 32

Originally the Old Woman River survey was to be a six-day trip Due to the damage the plane suffered dropping the first crew member off the second member and support gear was not av~ilable for the survey as planned~ The survey of the Old Woman River August 6-8 counted 60 king salmon but only four samples were collected Weather prevented the survey of the main river

King Salmon Spo rt Fish Survey

A sport fishing lodge on the Unalakleet River is responsible for the majority of the sport fishing effort Periodic surveying of lodge personnel indicates that a fair quantity of king salmon are harvested by sport fishing A quantitative survey was not done however due to limited time available A total of 43 chinook was sampled from sport fishing catches

DISCUSSION

River levels were lower than normal during the spring of 1983 due to the lack of snow accumulation the previous winter The Unalakleet River cleared early and became quite low during late June and early July The low water allowed the counting towers at the sonar site to be used during calm survey days which wasnt possible during 1982

Tower observations made as early as June 28 showed serious milling problems at the north bank sonar site The sonar was moved to a new site on July 2 Milling fish were still a considerable problem at the new site but about half the hourly count were considered acceptable during mid-July Milling salmon were a problem through most of the field season Milling salmon of all four species were observed

-11shy

during the latter half of each respective migration Pink salmon presented the worst problem and churn the least Unfortunately milling pinks invalidated the churn count since the two runs overlap Coho salmon exhibited some milling but an accurate evaluation of this problem was hampered by turbid water Milling coho became a problem after August 20

The milling observed from the towers was not apparent to the observer at the oscilloscope because of the overwhelming number of spikes present at that stage of the salmon migration During 1982 when tower observations were not possible the oscilloscope appeared to have an extraordinary number of spikes The large pink salmon count recorded in 1982 may have been an artifact of milling behavior that was unobservable then Commercial catch and test net catch statistics indicate a large pink salmon run f However it is likely fish milling over the substrate exaggerated the sonar count although without tower observations it can not be proven

Another problem observed during the 1983 field season was avoidance of the substrate by all fish species This problem was at its worst when water was low and clear Angling the substrate slightly downstream as it was after July 15 helped considerably By extending the sonar beam periodically it was determined that as visibility decreased so did avoidance

Species apportionment of the sonar count was done using test net catches Some of the problems encountered with the sampling scheme should be pointed out Test nets were assumed to sample the same portion of the river as the sonar Since three net lengths were used this seemed suspect Different species migrate at different depths The non-salmon species tend to migrate in shallow water near shore and generally the larger species migrate in deeper water nearer mid-stream Since only a IS-fathom net of the most efficient type for non-salmon species was fished in the preferred habitat for these fish it is likely that the calculated efficiency was too high The other test nets were longer and also sampled some preferred areas for the targeted species

The opposite case is true for king salmon The 8 14 net is 20 fathoms longS fathoms shorter than the other nets used on this project This net does not cover all of the area preferred by king salmon This means king salmon

-12shy

escapement is probably underestimated but the 20 fathom net samples an area further out than the sonar counter even with its beam extended So the number of king salmon counted by the sonar is over estimated King salmon make up such a small percentage of the total salmon run that counting errors are more significant than this apportionment error

Very few churn and pink salmon were caught in the offshore end of the nets It is assumed these long nets had very little effect on the sonar count species apportionment

CONCLUSION

The feasibility of counting salmon in the Unalakleet River using side-scanning sonar is unlikely due to milling fish and the inal1ility to accurately apportion the sonar count to the various fish species It is possible that a partial escapement count could be made further up river above one or more of the major tributaries to the system The new north bank sonar site that showed some improvement over the former site had two differences that seemed to affect salmon migration The current was faster over the substrate at the second site and the river gravels were less ideal spawning habitat The new site was located below a rock bluff on the outside of a river bend

There are two similar sites up river about ten miles where the current is faster and the bottom is even less conducive to spawning During the 1984 field season a comparison of the smoother running south bank site and these up-river sites could be made The best time to do this would be during August when only coho salmon are migrating The counter should be operating by August 15 prior to milling activity and maintained for a week to evaluate if milling salmon became apparent later after the migration peaked The south bank site could be used as a control for comparison to 1983

-13shy

I I

5 1 2

Miles No tt h _

shy

R Iv er

Figure 1 Unalakleet Escapement Project

lt

Son sr

Fig u r e 2 S 0 0 a r Sit eSc hem a tic

ITower

Original Ninth Bank Sonar

Drift sets 5 minutes

Lf)

So t h Ban k Son a

lTower

o Work Tent

B Living Quarters

Figure 3Unalakleet Subsistence Survey 1983

Kin g- S a I m 0 n

1bull

10

9

c 8aI

-lE 11 t a til 7 ~ II 6 ~ U

5 til

0

c 4 til til

E 3 I

1 V

~ 2

1

27 1 5 10 15 20 25 30

~ June

Figure 4A Specie apportionment king salmon Un-alakleet sonar 1983

~

25

-l20

c 1 5 III () III

11

10

5

I

J

27 31 5 10 15 20 25 30 5 10 15 20 25 31

June Ju Iy

Figure 4B Specie middotapp~~tionment coho salmon Unalakleet sonar 1983

30

25

co ~

20

1 t~

C $

u 1 5 CD a

10

5

5 10 15 20 25 31 5 10 15 20 25 31 5

Ju August Sept e

Figure 4C Specie apportionment pink salmon Unalakleet sonar 1983

1 6

1 5

14

1 3

12

1 1

c II U CII

Ashy

10

9

a

7

01 ~

6

5

4

3

2

1

1 5 10 1 5

June

2 O 25 30 5 10 15 20

Ju Iy

25 31 5 10 15 20

August

25 31 5 10

Septem

Figure 40 Species apportionment chum salmon Unalakleet sonar 1983

16

1 5

1 4

13

1 2

1 1

10

9 c 8GI U

GI middot7 A

6

5

4

3

2

1

~

o N

~

1 5 10 15 20 25 30 5 10 15 20 25 3 1 5 10 15 20 25 31 5 10

June Ju Iy August Sept e

Figure 5 Specie apportionment Unalakleet sonar 1983

50

4

40

35

c J 30 0 U

~ 0 25 0 c Q)

u ~

Q) 20a

15

10

5

o L-_lt---__

King Coho Pink Chum Misc

21

----

Figure 6 Sector distribution of counts Unalakleet sonar1983

35

30

25

c 20 G)

() G) 15

0

10

5

35

30

25 c G)

() 20

G)

0 15

10

5

( s ()u t h ban k )

July 3-5

~-2 4 6 8 1 0 1 2 1 4 1 6shy

Sector

August 21-23

2 4 6 8 10 12 14 16

Sector

22

Figure 7 Hourly distribution of counts Unalakleet sonar 1983

(south bank)

14

12

10

c 8 GI U ~

6

July 3-5

~GI

I =~ Q

4

2 0

2 4 6 8 10 12 14 1 6 18 20 22 24

TIme

9

8

7

6

5 c GI U ~ 4 GI

Q

3

2

August 21-23

1

0

2 4 6 8 10 12 14

TIme

16

23

18 20 22 24

Figure 8 Unalakleet River Test Fishing Daily King CPUE in 8 14 mesh 1983

10

9 N

8 shy

7 I 0 c 6E

n

l J I I

0 0 5 c (J 4 co 0

3

2

1

I I

27 1 5 10 15 20 25 1 5 10 15 20 25 31

~ June July

Figure 9 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1983bull

~

middot10

09 U N

I 08 0 c 07E I ()

- 06 E-0 0 05 shy~ () 04 ca - ()

03E I 0 02

01

27 1 5 10 15 2Q 25 1 5 10 15 20 25 31

June July

Figure 10 Unalakleet River Test Fishing Daily Coho CPUE in 5 78 mesh 1983

1

6

5

I 0

NI II I 0 t

E 4

0 0 c 3() cu 0

2

1

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sept U

Figure 11 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1983

200

175

150

I 0 c 125E I ()

E

r-shy-0 I I N 0 100 c ()-as ()

75E I 0

50

25

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sel ber

20

Figure 12 Unalakleet River Test Fishing Daily Pink CPUE in 4 mesh 1983

18

I

0) N

II

16

I ishy

14 J 0 t 12shyE 0 10 0 shys 8 () as

0 6 1 I V 4

2

~ I

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

--

Figure 13 Unalakleet River Test Fishing Cumulat ive Pink CPUE in 4 mesh 1983

10

9 01 N 8

J 0 J 7 E J 0 6 E- 50 ~

amp 4() ca

0 3 E J

0 2

1

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

Figure 14 Unalakleet River Test Fishing Daily CPUE in 5 14 amp 5 78 mesh 1983

14

13shy

12

11

10

9 J 0 8

I z shy-E 7 0 0 shys ~u aI 0

4 I

31

2

1

II

0 C1)I 11

I I I II

bull y AA(net changed to 5 78

AA A 11 I

~ I~ V ~

- I

VI

1 5 10 15 20- 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

cJune July August

Figure 15 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 14 amp 5 78 mesh 1983

It

5

--l C)

net changed to 5 78

~ 4 o

c E (J ~

3E o o c 2 u ~ -(J

E ~ (J 1

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 16 Unalakleet River Test Fishing Catch Proportions 1983

60

55

---- King50

__ Coho 45

P--Q Pink

40 __ Chum

I LU 35J D I 0

30 ICQ 0 25 I

N Cl0 20

c G)

15u G)

D

10

5 A 1 I

I 4 I

I I

3 lt

~

2

I I1 - I bull I

I ~ ~ ~ t -J ~~ - _

r

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 17 Unalakleet Area Temperatures 1983

18

16

14

12

til 10I

u-G) 80 CI) G) G) 6 C) G)

Q 4

2

C) C)

__ Air

0--0 River 2

0

-2

-4

---------~ ~

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August 5e

4

Figure 18 Unalakleet River Turbidity and Depth 1983

__ Secchi Reading

-t ()

II) G)-G)

3

iE 2

1

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August

~ 1 _ ~ r--- I shy I __ I 01 --shy

Figure 19 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1981-83

27 31 5

May

_1981

____ 1982

o 0 1983 11) C)

Changed to 5 78 mesh

I

t

~-~o-~ Q-O--Oolt)-(IQ-----l

--1

_10 15 20 25 30 5 10 15 20 25 31

June July

I I I

~

0 ~

r E ~

CJ shyE 0 0 I

shyr u-cu CJ

E ~

CJ

4

35

30

25

20

15

10

05

Figure 20 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 78 mesh 1981-83

5

4 lI 0

z

E lI 0 3 E-0 0 2 r CJ-cu 0

E lI 1 0

__1981 ~~

~ ___1982

a 01983 5 148 mesh from 65-810

_----shy-- 0 - -- C1) A - _ - ~

~ I

I

II I I I I I

I I

1

~ -

-

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 21 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 mesh- 1981-83

8

70

60

50

40 0

r 30E

0 20E-0 0 10 s= u 8 tV 0 6E 0 4

2

__1981 ____ 1982

_1983

shy--- -- shy--- shy J - -

I

I

C1- J

I

-----l---l ~--~r---------------r--

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 22 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1981-83

_1981

~ __ 1982

~1983

25

00I _ __ _ _ C)~ I __ _ I

I V o 20 rt I I

E I AshyI o E 15-o o z u 10 tU o E I o 5

I

1 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

July August 5

----------------------------------------------------------------

Table 1 Unalakleet River Subsistence King Salmon Index 1983

Number of Number of Date Fishermen Chinook Average

08 02 18 05 05 00 02 58 92 62 72 72 42 28 52 60 62 20 47 50 35 25 15

June 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Totals

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 4 4 4

4

3 1 7 2 2 o 1

23 37 25 29 29 17 11 21 24 25

6 14 15 14 H~

6

322

~

39

---------------------- ---------- --------------------------------------

----------------------------------------------------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983

Daily Proportion Cumu1 Prop Date South North Total of Total Cumulative of Total

64 7 23 30 1313131 313 013131 65 44 187 231 00137 261 01308 66 12 162 174 01305 435 01313 67 8 283 291 1313139 726 01322 68 0000 726 13022 69 3 221 224 013137 950 13029 610 26 245 271 131308 1221 13037 611 56 254 310 131310 1531 131347 612 44 736 780 013 24 2311 13071 613 64 1188 1252 01339 3563 01113 614 59 1752 1811 0056 5374 0166 615 97 844 941 01329 6315 0195 616 165 729 894 0028 7209 0223 617 151 i 604 1755 0054 8964 middot 0277 618 i ll 1524 1635 0051 10599 13328 619 175 2000 2175 0067 12774 13395 620 171 21320 2191 0068 14965 0463 621 220 1613 1833 0057 16798 0520 622 199 2065 2264 0070 19062 0590 623 362 21334 2396 0074 21458 13664 624 876 3403 4279 13133 25737 0797 625 1244 2023 3267- 0101 29004 0898 626 738 1601 2339 0073 31343 0971 627 573 3265 3838 0119 35181 1090 628 547 1868 2415 0075 37596 1165 629 528 4028 4556 0141 42152 1306 630 430 430 0013 42582 1319 71 240 240 01307 42822 1326 72 201 975 1176 0036 43998 1362 73 309 8842 9151 0284 53149 1646 74 475 6385 6860 0213 60009 1859 75 565 3342 3907 0121 63916 1980 76 1377 2094 3471 0108 67387 2088 77 1416 3173 4589 0142 71976 2230 78 1472 1420 2892 0090 74868 2320 79 2071 1452 3523 01113 78391 2430 710 3318 2434 5752 0178 84143 2608 711 2673 2866 5539 13172 89682 2780 712 1665 1747 3412 13106 93094 2886 713 21317 1951 3968 13123 97062 3009 714 2991 2664 5655 0175 102717 3184 715 2646 2548 5194 13161 107911 3345 716 2488 2886 5374 0167 113285 3512 717 1585 4063 5648 0175 118933 3687 718 3559 9326 12885 0400 131818 4087 719 2948 2398 5346 13166 137164 4253 720 1640 3330 4970 0154 142134 4407 721 2416 6420 8836 0274 150970 4681 722 3298 3298 0102 154268 4783 723 5007 5007 0155 159275 4938

40

--------------------------------------------------------------------

--------------------------------------------------------------------

-----------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983 (Continued)

Daily Proportion Cum Prop Date South North Total of Total Cumu1at i ve of Total

724 4005 7804 11809 0366 171084 5304 725 2453 3392 5845 0181 176929 5485 726 2166 12094 14260 0442 191189 5927 727 1914 4472 6386 0198 197575 6125 728 1603 3463 5066 0157 202641 6282 729 1251 1914 3165 0098 205806 6380 730 1710 2495 4205 en30 210011 6510 731 2542 1887 4429 0137 214440 6647 81 4479 2271 6750 0209 221190 6856 82 1103 1806 2909 0091 224099 6947 83 1719 942 2661 0083 226760 bull 7030 84 1519 2557 4076 0126 230836 7156 85 1259 1113 2372 0074 233208 7230 86 940 2189 3129 0097 236337 7327 87 1467 4354 5821 0180 242158 7507 88 2318 1584 3902 0121 246060 7628 89 2098 1505 3603 0112 249663 7740 810 2629 1517 4146 bull 0129 253809 7869 811 3753 1091 4844 0150 258653 8019 812 1489 523 2012 0062 260665 8081 813 744 353 1097 0034 261762 8386 814 981 981 bull 0030 262743 8145 815 2324 2324 0072 265067 8217 816 2638 2638 0082 267705 8299 817 2073 731 2804 0087 270509 8115 818 2244 675 2919 0091 273428 8477 819 3240 696 3936 0122 277364 8599 820 2363 503 2866 0089 280230 8688 821 6789 1111 7900 0245 288130 8933 822 6489 563 7052 0219 295182 9152 823 5077 298 5375 0167 300557 9319 824 2616 298 2914 0090 303471 9409 825 3933 412 4345 0135 307816 9544 826 1393 554 1947 0060 309763 9604 827 1203 463 1666 0052 311429 9656 828 1197 542 1739 0054 313168 9710 829 1244 221 1465 0045 314633 9755 830 1011 199 1210 0038 315843 9793 831 718 214 932 0029 316775 9822 91 1324 318 1642 0052 318417 9874 92 1362 307 1669 0052 320086 9926 93 1146 314 1460 0045 321546 9971 94 652 296 948 bull 0029 322494 10000

148465 174029 322494 10000

41

----------------------------------------------------------------------

-------------------------------------------------------------------- --

------

TABLE 3A Unalakleet River Species Apportionment by Test Period King Salmon 1983

3-Day App Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 76 0272 76 0272

69-612N 28 0100 104 0372

612N-615 461 1652 565 2024

616-619N 419 1502 984 3526

619N-622 170 0609 1154 4135

623-626N 722 2588 1876 6723

626N-629 264 0946 2140 7669

630-73N 103 0639 2243 8038

73N-76 188 0674 2431 8712

77-710N 0 0000 2431 8712

710N-713 0 0000 2431 8712

714-717N 267 0957 2698 9969

717N-720 0 0000 2698 9669

721-724N 92 0331 2790 1 0000

724N-727 0 0000 2790 10000

728-731N 0 0000 2790 1 0000

731N-83 0 0000 2790 1 0000

2790 10000

42

Dates

714-717N

717N-720

721-724N

724N-727

728-731N

731N-83

84-87N

87N-810

811-814N

814N-817

818-821N

821N-824

825-828N

828N-831

91-94

TABLE 3B Unalakleet River Species Apportionment by Test Period Coho Salmon

3-Day Count

583

338

436

550

2650

1174

793

1435

5074

1280

435

2265

171H3

1983

Proportion of Season Total

0000

0000

0000

0343

0199

0256

0323

1558

0690

0466

0843

2983

0752

0256

1331

Cumulative Count

583

921

1357

1907

4557

5731

6524

7959

13033

14313

14748

17013

Cumulative Proportion

0000

0000

0000

0343

0542

0798

1121

2679

3369

3835

4678

7661

8413

8669

10000

43

------------------------------------------------------------------

------------------------------------------------------------------

----- ------

TABLE 3C Unalakleet River Species Apportionment by Test Period Pink Salmon 1983

3-Day P roport ion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 0 0000

6l2N-615 0 0000

616-6l9N 97 0012

6l9N-622 332 0036

623-626N 1245 0136

626N-629 6624 0721

630-73N 3699 0403

73N-76 10762 1171

77-7l0N 7704 0838

710N-7l3 8529 0928

714-717N 9771 1063

717N-720 13845 1507

721-724N 11361 1236

724N-727 6544 0712

728-731N 3545 0386

731N-83 1628 0177

84-87N 1224 0133

87N-810 1777 0193

811-814N 802 0087

814N-817 561 0061

818-821N 533 0058

821N-824 8313 13091

825-828N 468 0051

828N-831 0 0000

91-94 0 0000

91881 10000

0 0000

0 0000

0 0000

97 0012

429 0048

1674 0184

8298 0905

11997 1308

22759 2479

30463 3317

38992 4245

48763 5308

62608 6815

73969 8051

80513 8763

84058 9149

85686 9326

86910 9459

88687 9652

89489 9739

90050 9800

90583 9858

91413 9949

91881 10000

91881 10000

91881 1 0000 44

------------------------------------------------------------------

------------ ------------------------------------------------------

----- ------

TABLE 3D Unalakleet River Species Apportionment by Test Period Chum Salmon 1983

3-Day Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 100 0017

612N-615 268 0046

616-619N 838 0144

619N-622 1180 0202

623-626N 2744 0471

626N-629 1569 0270

630-73N 796 0137

73N-76 2972 0510

77-710N 2068 0355

710N-713 2622 0450

714-717N 4133 0710

717N-720 5596 0960

721-724N 4978 0854

724N-727 8974 1540

728-731N 2241 0385

731N-83 2079 ~0357

84-87N 3009 0516

87N-810 2432 0417

811-814N 937 0161

814N-817 454 0078

818-821N 2584 0443

821N-824 2739 0470

825-828N 1783 0306

828N-831 765 0131

91-94 412 0070

58273 10000 45

0 0000

100 0017

368 0063

1206 0207

2386 0409

5130 0880

6699 1150

7495 1287 f

10467 1797

12535 2152

15157 2602

19290 3312

24886 4272

29864 5216

38838 6666

41079 7051

43158 7408

46167 7924

48559 8341

49536 8502

49990 8580

52574 9023

55313 9493

57096 9799

57861 9930

58273 1 0000

-------------------------------------------------------------

------------------------- ------------------------------------

TABLE 4 Unalakleet River Test Net Proportions by Sample Perio-d 1983 ( Selective CPUE)

Dates Chinook Coho Pink Chum Misc

64-68 105 00 00 895

69-612N 24 00 83 893

612N-615 1C~ 5 00 61 834

616-619N 78 18 156 748

619N-622 23 45 160 772

623-626N 65 112 247 576

626N-629 22 553 131 294

630-73N 16 576 124 284

73N-76 10 572 158 260

77-710N 00 555 149 296

710N-713 00 540 166 294

714-717N 14 00 513 217 256

717N-720 00 00 532 215 253

721-724N 04 00 493 216 287

724N-727 00 18 202 277 503

728-731N 00 23 242 153 582

731N-83 00 30 112 143 715

84-87N 44 98 241 617

87N-810 182 122 167 529

811-814N 139 95 111 655

814N-B17 96 68 55 7B1

B18-B21N 105 39 1B9 667

821N-824 263 43 142 552

825-B28N 145 53 202 600

828N-831 97 00 171 732

91-94 396 00 72 532

46

--------

--------

TABLE 4 Una1ak1et River Test Net Proportions 1983 ( Selective CPUE) (Continued)

Comparative Apportionment

Species Apportionment

Chinook 2790 Coho 17013 Pink 91881 Churn 58273

------shySubtotal 169957

Misc Species 152537 ------shy

Total 322494

Substrate Comparison -------------------shy

Bank Counts -----shy

South 148465 North 174029

------shy

Total 322494

Percent of Total Counts

09 53

285 181

5408

472

1000

Percent

460 540

1000

47

-------------------------------------------------------------------

TABLE 5A Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

May 27 28

21 5 482

13 13

1313

1313 21 5 697

13 13

1313

1313 30 240 0 013 937 0 00 31 246 2 41 1183 2 08

June 1 237 0 00 1420 2 07 2 3

256 585

13 13

013 bull 13 13

1676 2 261

2 2

6bull 13 4

5 6 8

160 120 middot 125

13 1

13 42 130

2 421 2541 2666

~ 2 3 3

bull 13 4 136 136

9 122 0 130 2788 3 05 11 117 00 2905 3 05 12 126 13 00 3031 3 05 13 117 1 43 3148 4 06 15 118 0 013 3266 4 136 16 116 1 43 3382 5 138 18 240 13 130 3622 5 07 19 121 0 00 3743 5 07 20 116 0 00 3859 5 136 22 118 1 42 3977 6 138 23 119 1 42 4196 7 08 25 240 0 013 4336 7 138 26 119 13 1313 4455 7 138 27 119 13 1313 4574 7 138 29 1213 13 130 4694 7 137 313 1213 13 00 4814 7 07

July 2 238 0 1313 51352 7 07 3 118 13 013 51713 7 07 4 118 1 42 5288 8 138 6 122 0 00 5410 8 07 7 116 13 00 5526 8 07

10 126 0 1313 5652 8 07 11 119 0 013 5771 8 07 13 116 13 130 5887 8 07 14 119 2 84 6006 10 07 17 122 0 00 6128 10 07 18 112 0 1313 6240 10 136 20 119 13 00 6359 10 06 21 112 0 013 6471 10 06

6471 10

48

------------------------------------------------------------------

------------------------------------------------------------------

TABLE 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983

Cum Cum Date Hours Catch CPUE Hours Catch CPUE

July 24 26

115 120 0 00

115 235

0 0

00

00 27 117 4 00 352 0 00 29 117 0 137 469 4 34 31 116 3 103 585 7 48

August 2 122 0 00 706 7 40 3 122 2 66 828 9 43 5 118 1 34 946 10 42 7 128 14 437 1074 24 89 9 257 14 218 1331 38 114

10 125 21 672 1456 59 162 12 13 middot- 0 00 1469 x 59 161 14 10 7 12 449 1576 71 180 16 122 2 66 1698 73 172 17 123 6 196 1821 79 174 19 118 1 34 1939 80 165 21 112 6 214 2051 86 168 23 120 3 100 217 1 89 164 24 115 2 70 2286 91 159 26 115 5 174 2401 96 160 28 119 0 00 2520 96 152 30 119 4 1 34 2639 100 152 31 117 1 34 2756 101 147

Sept 2 123 5 33 2879 106 147 4 479 15 125 3358 121 144 6 238 11 185 3596 132 147 7 237 5 84 3833 137 143 8 238 6 1 01 4071 143 141 9 242 10 1 65 4313 153 142

10 242 3 50 4555 156 137 11 242 2 33 4797 158 132 12 241 8 133 5038 166 132 14 227 14 247 5265 180 137 15 242 9 149 5507 189 137 16 210 3 57 5717 192 134 17 239 2 33 5956 194 130 18 230 2 35 6186 196 127 20 489 4 33 6675 200 120 21 24 3 50 6915 203 117 22 242 0 00 7157 203 113 23 234 1 17 7391 204 110

----shy

7391 204

Mesh size = 5 14 from 724 to 810

49

------------------------------------------------------------------

TABLE 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE ------~-----------------------------------------------------------June 16 122 1 33 122 1 33

17 118 0 bull 0 0 240 1 17 20 120 2 67 360 3 33 21 118 0 00 478 3 25 23 119 2 67 597 5 34 24 119 3 102 716 8 45 27 116 19 655 832 27 130 28 120 22 733 952 49 206 30 120 40 1333 1072 89 332

July 1 115 36 1252 1187 125 421 4 122 30 983 1309 155 474 5 114 47 1649 1423 202 568 7 118 30 1016 1541 232 602 8 120 shy 24 800 1661 -$ 256 616

11 122 42 1377 1783 298 669 12 120 29 967 1903 327 687 14 116 37 1276 2019 364 721 15 118 40 1356 2137 404 756 18 121 60 1976 2258 464 822 19 119 30 740 2377 494 831 21 125 61 1952 2502 555 887 22 118 25 847 2627 580 883 25 122 16 525 2749 596 867 26 116 15 517 2865 611 853 28 122 28 918 2987 639 856 29 117 11 376 3104 650 838

August 1 120 7 233 3224 657 815 2 119 9 303 3345 666 796 4 120 3 100 3465 669 772 5 118 5 170 3583 674 752 8 114 7 245 3697 681 734

11 123 7 337 3 82 0 688 720 15 118 2 68 3938 690 701 16 113 5 177 4051 695 686 18 98 3 122 4149 698 673 19 119 1 34 4268 699 655 22 112 0 00 4380 699 638 23 115 0 00 4495 699 622 25 120 2 66 4615 701 606 26 112 1 36 4727 702 594 29 116 0 00 4843 702 580 30 11 5 0 00 4958 702 566

Sept 1 115 0 00 5079 702 553 2 112 0 00 5191 702 541

----shy5079 702

50

-----------------------------------------------------------------

------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

June 5 73 0 00 73 0 00 7 126 0 00 199 0 00 8 127 0 00 326 0 bull 0 0

10 11 4 3 105 440 3 27 12 113 2 71 553 5 36 14 119 1 34 672 6 36 15 116 4 138 788 10 51 17 116 3 103 904 13 56 19 118 6 203 1022 19 74 21 118 0 00 1140 19 67 22 117 10 342 1257 29 92 24 116 3 103 1373 32 93 26 119 11 370 1492 43 115 28 11 8 6 203 1610 $ 49 122 29 115 13 452 1725 62 144

July 1 119 8 269 1844 70 152 3 119 17 571 1963 87 177 5 119 13 437 2082 100 192 6 12 0 17 567 2202 117 213 8 121 7 231 2323 124 214

10 11 4 18 632 2437 142 233 12 115 12 417 2552 154 241 13 116 37 1276 2668 191 286 15 117 16 547 2785 207 297 17 11 8 31 1051 290 3 238 328 19 118 18 610 3021 256 339 20 115 29 1009 3136 285 364 22 122 17 557 3258 302 371 24 115 24 835 3373 326 387 26 120 19 633 3493 345 395 27 117 11 376 3610 356 394 29 117 14 479 3727 370 397 31 116 18 621 3843 388 404

August 2 121 9 298 3964 397 401 3 122 17 557 4086 414 405 5 11 8 8 271 4204 422 402 7 128 19 594 4332 441 407 9 257 10 156 4589 451 393

10 125 14 448 4714 464 394 12 13 1 308 4727 465 393 14 107 5 187 4834 470 389 16 122 4 131 4956 474 383 17 123 15 488 5079 489 385 19 118 8 271 5197 497 383 21 112 3 107 5309 500 378 23 120 6 200 5429 506 373 24 115 7 243 5544 513 370

51

-----------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 (Continued)

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

August 26 115 5 174 5657 518 366 28 119 1 34 577 6 519 359 30 119 4 134 5895 523 355 31 117 0 00 6012 523 3 48

Sept 2 123 3 98 613 5 526 343 4 479 2 17 6614 528 319 6 238 1 17 6852 529 309 7 237 0 00 7089 529 298 8 9

238 242

1 2

17

33 7327 7569

clt

530 532

289 281

10 242 3 50 7811 535 274 11 242 0 00 8053 535 266 12 241 2 33 8294 537 259 14 227 3 53 8521 540 253 15 242 0 00 8763 540 246 16 210 1 19 8973 541 241 17 239 2 33 9212 543 236 18 230 0 00 9442 543 230 20 489 0 00 9931 543 219 21 240 2 33 10171 545 214 22 242 0 0 10413 545 209 23 234 0 00 10647 545 205

----shy

10647 545

52

------------------------------------------------------------------------

------

TABLE 6A Unalakleet River Sonar Site Drift Sets5 1 4n Me sh 19 83 bull

Date Time Result

July 19 1405-1413 1 burbot July 23 1040-1055 1 pink caracass July 27 1520-1530 1 coho August 3 1444-1501 4 coho August 22 1930-1937 0 August 23 937-943 1 coho 1 pink carcass August 26 1117-1127 1 coho 3 churn August 31 1018-1034 3 churn

TABLE 6B Unalakleet River Sonar Site Beach Seines 1983

Date Time Distance Result

July 20 1445 120 meters 4 pink 1 churn 13 Dolly Varden 1 whitefish

July 25 1500 120 meters 6 pink 1 churn 1 Dolly Varden 4 whitefish 1 grayling

July 28 1700 120 meters 4 coho 2 pink 2 churn 1 Dolly Varden

August 1 2010 300 meters 4 pink 3 churn 8 Dolly Varden

August 4 1015 130 meters 5 coho 3 pink 3 churn 65 Dolly Varden 3 whitefish 3 grayling

August 24 1110 130 meters 18 coho 2 Dolly Varden 2 grayling

August 29 1715 120 meters 11 coho 1 pink 69 churn 1 Dolly Varden 2 grayling

Seine done at mile 12 Unalakleet River

53

--------------------------------------------------------------------------------------------------

--------------------------------------------------------------------------------------------------

TABLE 7 AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER CATCH SAMPLE SPORT CATCH AND SPAWNING SURVEYS 1983

II

COMBINED 3-2 4-2 4-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 31 646 6702 5 104 5010 8 167 5688 1 21 5900

Female 17 354 8540 o o 1 21 5450 o o

Total 48 1000 7353 5 104 5010 9 188 5661 1 21 5900

~ 11)

5-2 6-2 7-2 7-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 11 229 7382 6 125 8350 0 0 0 0

Female 2 42 7925 12 250 8742 1 21 10650 1 21 8350

Total 13 271 7465 18 375 8611 1 21 10650 1 21 8350

TABLE 8A AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER TEST NET SAMPLE 1983

-----~-------------------------------------------------------------------------------------------------------

gt

COMBINED 4-2 5-2 5-3 6-2 7-2 NO LENGIH NO LENGIH NO LENGIH NO LENGTH NO LENGTH NO LENGTr

8 14 n

Male 3 333 8107 0 1 111 5800 o 0 2 222 9260 0 0 Female 6 667 8295 0 0 1 111 7600 o o 4 444 8310 1 111 8930 Total 9 10 e 0 8232 0 o 2 222 6700 o o 6 667 8627 1 111 8930

If) If)

5 14 Male 19 1000 6298 12 632 5392 4 211 6990 0 o 3 158 8997 0 0 Female o 0 o o o o o o 0 0 0 0 Total 19 1000 6298 12 632 5392 4 211 6990 o o 3 158 8997 0 0

4 n or Smaller Male 6 667 5930 1 111 4660 2 222 6325 3 333 6090 0 o 0 o Female 3 333 8970 o o o o o o 3 333 8970 0 o Total 9 1000 6943 1 111 466 2 222 6325 3 33 3 6090 3 33 3 8970 0 0

TOTAL Hale 28 757 6413 13 351 5336 7 189 6630 3 8 1 6090 5 13 5 9102 o 0 Female 9 243 852 o o 1 27 7600 o o 7 189 8593 1 2 7 8930 Total 37 1000 6925 13 351 5336 8 216 6751 3 8 1 6090 12 324 88 e 5 1 2 7 8930

---------------------------------------------------------------------------------------------------------

---------------------------------------------------------------------------------------------------------

TABLE 8B AGE SEX AND SIZE COMPOSITION OF NORTON SOUND COHO SALMON UNALAKLEET RIVER TEST NET SAMPLE 5 14 AND 5 78 GEAR 1983

COMBINED 3-2 4-3 4-4 5-4 NO LENGIH NO LENGIH NO LENGTH NO LENGIH NO LENGTH

Male 9 900 5489 0 0 9 900 5489 0 0 Female 1 10 bull 0 552 QJ QJ 0 1 10QJ 5520 0 0 Total 10 1000 5492 0 0 10 1000 5492 0 0 725-731

bull LI)Male 15 938 5645 15 938 5645 Female 1 62 575 QJ 1 62 575 QJ Total 16 lQJ0QJ 5651 16 100QJ 5651 81-87

Male 24 545 5668 23 523 5768 1 23 3350 Female 20 455 5631 20 455 5631 0 0 Total 441QJ0QJ 5651 43 977 57 QJ 4 1 23 335 QJ 88-814

Male 7 500 5797 7 500 5797 QJ 0 Female 7 500 5596 6 429 5587 1 71 5650 Total 14 1000 5696 13 929 1 71 5650570 815-821

Male 5 455 5492 5 455 5492 Female 6 545 5552 6 545 5552 Total 11 lQJ00 5525 11 100QJ 5525 822-828

onshore end of each substrate (Figure 2) As in 1982 the use of visual tower counts for comparison with sonar counts could not be relied upon due to river width surface disturbances etc however several short comparisons were possible The towers proved invaluable in determining the presence of moribund fish debris passage presence of oscars fish swimming behavior etc The 1983 low river level and generally less turbidity as compared to 1982 allowed more rapid and concrete identification of the milling fish Without use of the tower the severity of the milling fish problem may not have been discovered

Drift SetsBeach Seines

Drift sets and beach seines were done for comparison with test net species apportionment and to determine fish passage beyond the sonar counting range Drjft sets were accomplished by drifting a 25 fm 5 14 gillnet perpendicular to the shore The 25 fm net allowed the major portion of the river to be fished thus only one drift was done per set as opposed to 1982 when a drift set was done near each bank Set durations ranged from 5 to 17 minutes dependent upon boat traffic wind conditions etc Drift sets were done on July 19 23 and 27 and August 3 22 23 26 and 31

Beach seines were accomplished by using a 25 fm 3 mesh seine immediately downstream of the south bank substrate Shoreline conditions prevented se1n1ng near either north bank site Beach seines on the south bank were done on July 20 25 and 28 and August 1 and 29 Beach Unalakleet River were done on August 4 and levels prevented seining from August 4 to

seines 24

24

at High

mile 12 water

Riyer Surveys

Two river surveys were attempted during 1983 A jet boat was taken up the North River on July 29 This proved to be early for carcass sampling but weather and equipment problems prevented a later survey

A float trip of the Old Woman and upper Main River was also made A plane landing mishap greatly reduced the scope of this trip Weather prevented any follow up work

Subsistence Surveys

A daily survey of three to five sUbsistence fishermen is

-7shy

made from the time the first king salman is caught early in June through the remainder of that month These people must be trustworthy conscientious about checking their nets and fairly successful The average daily catch is compared to the previous day to develope the annual trend and the total catches and the annual trend is compared to past years Commercial catch and effort data and the up-river test net data are used in conjuction with the subsistence catch to anticipate strategies

future catches and management

During late September made of Unalakleet

an The

extensive door to door survey is Annual Management Report covers

subsistence surveys in detail

RESULTS

~istence Survey

The Unalakleet subsistence survey made in late September interviewed 74 subsistence fishermen 68 of whom fished in the river and 17 who fished in the ocean The catch was predominantly from the river with 1480 king 6311 coho 13458 pink and 4124 chum salmon reported The ocean subsistence catch was 388 king 577 coho 350 pink and 277 chum salmon

The mean chinook salmon catch per fisherman peaked on June 16 This compares with July 3 in 1982 and June 19-22 in 1981 All subsistence fishermen surveyed in 1983 were fishing within one mile of the river mouth

Chinook subsistence survey results are presented in Table 1 and Figure 3 As in 1981 and 1982 the variances in nets fishing times and net locations call for calculation of mean catch per fisherman as opposed to catch per unit effort

Sonar

During the period from June 4 to September 4 the final sonar count was 322494 148465 (460) counts were tallied on the south bank and 174029 (540) counts were tallied on the north bank

The daily sonar counts (Table 2) were adjusted by the test net proportions (Table 4) to give the following escapement estimates for the period June to September 4

-8shy

Species Total Count LQf Total

Chinook 2790 09 Coho 17013 53 Pink 91881 285 Chum 58273 181 Other 152537 AL2

322494 1000

Tables 3A 3B 3C 3D and 4D present this data by 3-day sample period Based on discussions with Al Menin and Dave Gaudet about the ability of sonar counters to discriminate between various target shapes and sizes any fish two and one half pounds or laterally compressed fish ~f one pound or larger could be counted by a sonar calibrated for pink salmon Fish other than salmon considered countable by the sonar counter included arctic char grayling burbot and broad humpback and Alaska whitefish

Peak adjusted apportioned sonar counts were on June 23 for chinook August 21 for coho July 18 for pink and July 25 for chum salmon (Tables 3A 3B 3C and 3D Figures 4A 4B 4C and 4D)

Representative passage rates on the south bank by sector and by hour for July 3-5 and August 21-23 are presented in Figures 6 and 7 These periods were chosen because of minimal adjustments to raw counts north bank counts are not presented due to lack of relatively clean data for those periods

Test Fishing

A total of 19 chinook (74 male - 26 female) 294 coho (61 male 39 female) 1156 pink (52 male - 48 female) and 915 chum (54 male - 46 female) was captured from May 27 to September 23 The fish were sampled and delivered to Hartha Nanouk a local subsistence fisherman as per agreement for the use of her traditional set-net site

Based on the single most effective test net CPUE the chinook migration did not peak as such but rather showed most consistent catches on June 22 and 23 coho migration peaked from August 10-14 pinks from July 18-22 and chum on July 13

-9shy

Comparisons of daily CPUE and cumulative CPUE for all salmon species are presented in Tables SA 58 5C and 5D and Figures 8 thru 15 Of interest although not as useful for annual comparison due to different test net methods net mesh sizes fishing time etc the actual fish caught from 1981 to 1983 are

~ 1982 un 41 chinook 39 chinook 39 chinook

107 coho 310 coho 294 coho 1463 pink 5114 pink 1156 pink

722 chum 375 chum 915 chum

f

Age Sex and Size Composition of Test Net Catches

An age analysis of scales collected during the project indicated the following age compositions king salmon all gear sizes (4-2131 5-2 22~ 5-3816-23217-2 3) coho salmon 5 14 and 5 78 gear (3-2 051 4-3 981 4-4 051 5-4 l) chum salmon 5 14 and 5 78 gear (3-1 21 4-1 611 5-1 37) Tables 7 thru 9D show the age composition of the various species broken down by date and the mesh sizes used during the project

Counting Towers

As cited visual tower counts could not be made on the Unalakleet River due to river width surface disturbances turbidity etc However visual observations proved invaluable in identifying spawning behavior etc and resulted in the downstream relocation of the north bank substrate and development of the method used to adjust north bank sonar counts

Drift SetsBeach Seines

Tables 6A and 68 present the results of drift sets and beach seines respectively Drift set results indicate that the portion of the river not isonified was not used by migrating salmon ie the species most countable coho pink and chum salmon would seem to follow the banks and were counted by the side-scan sonar

Beach seines proved useful in verifying the high presence of

-10shy

species other than salmon the relative abundance of coho salmon in August and the presence of spawning churn salmon in the south bank substrate area

Riyer SurveysAerial SurVeys

On July 29th 32 miles of the North River were surveyed by a two-person crew for the purpose of counting live chinook and sampling chinook carcasses A total of 166 live chinook were counted and 3 chinook carcasses were sampled with approximately half of the chinook counted between mile 25 and mile 32

Originally the Old Woman River survey was to be a six-day trip Due to the damage the plane suffered dropping the first crew member off the second member and support gear was not av~ilable for the survey as planned~ The survey of the Old Woman River August 6-8 counted 60 king salmon but only four samples were collected Weather prevented the survey of the main river

King Salmon Spo rt Fish Survey

A sport fishing lodge on the Unalakleet River is responsible for the majority of the sport fishing effort Periodic surveying of lodge personnel indicates that a fair quantity of king salmon are harvested by sport fishing A quantitative survey was not done however due to limited time available A total of 43 chinook was sampled from sport fishing catches

DISCUSSION

River levels were lower than normal during the spring of 1983 due to the lack of snow accumulation the previous winter The Unalakleet River cleared early and became quite low during late June and early July The low water allowed the counting towers at the sonar site to be used during calm survey days which wasnt possible during 1982

Tower observations made as early as June 28 showed serious milling problems at the north bank sonar site The sonar was moved to a new site on July 2 Milling fish were still a considerable problem at the new site but about half the hourly count were considered acceptable during mid-July Milling salmon were a problem through most of the field season Milling salmon of all four species were observed

-11shy

during the latter half of each respective migration Pink salmon presented the worst problem and churn the least Unfortunately milling pinks invalidated the churn count since the two runs overlap Coho salmon exhibited some milling but an accurate evaluation of this problem was hampered by turbid water Milling coho became a problem after August 20

The milling observed from the towers was not apparent to the observer at the oscilloscope because of the overwhelming number of spikes present at that stage of the salmon migration During 1982 when tower observations were not possible the oscilloscope appeared to have an extraordinary number of spikes The large pink salmon count recorded in 1982 may have been an artifact of milling behavior that was unobservable then Commercial catch and test net catch statistics indicate a large pink salmon run f However it is likely fish milling over the substrate exaggerated the sonar count although without tower observations it can not be proven

Another problem observed during the 1983 field season was avoidance of the substrate by all fish species This problem was at its worst when water was low and clear Angling the substrate slightly downstream as it was after July 15 helped considerably By extending the sonar beam periodically it was determined that as visibility decreased so did avoidance

Species apportionment of the sonar count was done using test net catches Some of the problems encountered with the sampling scheme should be pointed out Test nets were assumed to sample the same portion of the river as the sonar Since three net lengths were used this seemed suspect Different species migrate at different depths The non-salmon species tend to migrate in shallow water near shore and generally the larger species migrate in deeper water nearer mid-stream Since only a IS-fathom net of the most efficient type for non-salmon species was fished in the preferred habitat for these fish it is likely that the calculated efficiency was too high The other test nets were longer and also sampled some preferred areas for the targeted species

The opposite case is true for king salmon The 8 14 net is 20 fathoms longS fathoms shorter than the other nets used on this project This net does not cover all of the area preferred by king salmon This means king salmon

-12shy

escapement is probably underestimated but the 20 fathom net samples an area further out than the sonar counter even with its beam extended So the number of king salmon counted by the sonar is over estimated King salmon make up such a small percentage of the total salmon run that counting errors are more significant than this apportionment error

Very few churn and pink salmon were caught in the offshore end of the nets It is assumed these long nets had very little effect on the sonar count species apportionment

CONCLUSION

The feasibility of counting salmon in the Unalakleet River using side-scanning sonar is unlikely due to milling fish and the inal1ility to accurately apportion the sonar count to the various fish species It is possible that a partial escapement count could be made further up river above one or more of the major tributaries to the system The new north bank sonar site that showed some improvement over the former site had two differences that seemed to affect salmon migration The current was faster over the substrate at the second site and the river gravels were less ideal spawning habitat The new site was located below a rock bluff on the outside of a river bend

There are two similar sites up river about ten miles where the current is faster and the bottom is even less conducive to spawning During the 1984 field season a comparison of the smoother running south bank site and these up-river sites could be made The best time to do this would be during August when only coho salmon are migrating The counter should be operating by August 15 prior to milling activity and maintained for a week to evaluate if milling salmon became apparent later after the migration peaked The south bank site could be used as a control for comparison to 1983

-13shy

I I

5 1 2

Miles No tt h _

shy

R Iv er

Figure 1 Unalakleet Escapement Project

lt

Son sr

Fig u r e 2 S 0 0 a r Sit eSc hem a tic

ITower

Original Ninth Bank Sonar

Drift sets 5 minutes

Lf)

So t h Ban k Son a

lTower

o Work Tent

B Living Quarters

Figure 3Unalakleet Subsistence Survey 1983

Kin g- S a I m 0 n

1bull

10

9

c 8aI

-lE 11 t a til 7 ~ II 6 ~ U

5 til

0

c 4 til til

E 3 I

1 V

~ 2

1

27 1 5 10 15 20 25 30

~ June

Figure 4A Specie apportionment king salmon Un-alakleet sonar 1983

~

25

-l20

c 1 5 III () III

11

10

5

I

J

27 31 5 10 15 20 25 30 5 10 15 20 25 31

June Ju Iy

Figure 4B Specie middotapp~~tionment coho salmon Unalakleet sonar 1983

30

25

co ~

20

1 t~

C $

u 1 5 CD a

10

5

5 10 15 20 25 31 5 10 15 20 25 31 5

Ju August Sept e

Figure 4C Specie apportionment pink salmon Unalakleet sonar 1983

1 6

1 5

14

1 3

12

1 1

c II U CII

Ashy

10

9

a

7

01 ~

6

5

4

3

2

1

1 5 10 1 5

June

2 O 25 30 5 10 15 20

Ju Iy

25 31 5 10 15 20

August

25 31 5 10

Septem

Figure 40 Species apportionment chum salmon Unalakleet sonar 1983

16

1 5

1 4

13

1 2

1 1

10

9 c 8GI U

GI middot7 A

6

5

4

3

2

1

~

o N

~

1 5 10 15 20 25 30 5 10 15 20 25 3 1 5 10 15 20 25 31 5 10

June Ju Iy August Sept e

Figure 5 Specie apportionment Unalakleet sonar 1983

50

4

40

35

c J 30 0 U

~ 0 25 0 c Q)

u ~

Q) 20a

15

10

5

o L-_lt---__

King Coho Pink Chum Misc

21

----

Figure 6 Sector distribution of counts Unalakleet sonar1983

35

30

25

c 20 G)

() G) 15

0

10

5

35

30

25 c G)

() 20

G)

0 15

10

5

( s ()u t h ban k )

July 3-5

~-2 4 6 8 1 0 1 2 1 4 1 6shy

Sector

August 21-23

2 4 6 8 10 12 14 16

Sector

22

Figure 7 Hourly distribution of counts Unalakleet sonar 1983

(south bank)

14

12

10

c 8 GI U ~

6

July 3-5

~GI

I =~ Q

4

2 0

2 4 6 8 10 12 14 1 6 18 20 22 24

TIme

9

8

7

6

5 c GI U ~ 4 GI

Q

3

2

August 21-23

1

0

2 4 6 8 10 12 14

TIme

16

23

18 20 22 24

Figure 8 Unalakleet River Test Fishing Daily King CPUE in 8 14 mesh 1983

10

9 N

8 shy

7 I 0 c 6E

n

l J I I

0 0 5 c (J 4 co 0

3

2

1

I I

27 1 5 10 15 20 25 1 5 10 15 20 25 31

~ June July

Figure 9 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1983bull

~

middot10

09 U N

I 08 0 c 07E I ()

- 06 E-0 0 05 shy~ () 04 ca - ()

03E I 0 02

01

27 1 5 10 15 2Q 25 1 5 10 15 20 25 31

June July

Figure 10 Unalakleet River Test Fishing Daily Coho CPUE in 5 78 mesh 1983

1

6

5

I 0

NI II I 0 t

E 4

0 0 c 3() cu 0

2

1

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sept U

Figure 11 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1983

200

175

150

I 0 c 125E I ()

E

r-shy-0 I I N 0 100 c ()-as ()

75E I 0

50

25

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sel ber

20

Figure 12 Unalakleet River Test Fishing Daily Pink CPUE in 4 mesh 1983

18

I

0) N

II

16

I ishy

14 J 0 t 12shyE 0 10 0 shys 8 () as

0 6 1 I V 4

2

~ I

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

--

Figure 13 Unalakleet River Test Fishing Cumulat ive Pink CPUE in 4 mesh 1983

10

9 01 N 8

J 0 J 7 E J 0 6 E- 50 ~

amp 4() ca

0 3 E J

0 2

1

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

Figure 14 Unalakleet River Test Fishing Daily CPUE in 5 14 amp 5 78 mesh 1983

14

13shy

12

11

10

9 J 0 8

I z shy-E 7 0 0 shys ~u aI 0

4 I

31

2

1

II

0 C1)I 11

I I I II

bull y AA(net changed to 5 78

AA A 11 I

~ I~ V ~

- I

VI

1 5 10 15 20- 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

cJune July August

Figure 15 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 14 amp 5 78 mesh 1983

It

5

--l C)

net changed to 5 78

~ 4 o

c E (J ~

3E o o c 2 u ~ -(J

E ~ (J 1

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 16 Unalakleet River Test Fishing Catch Proportions 1983

60

55

---- King50

__ Coho 45

P--Q Pink

40 __ Chum

I LU 35J D I 0

30 ICQ 0 25 I

N Cl0 20

c G)

15u G)

D

10

5 A 1 I

I 4 I

I I

3 lt

~

2

I I1 - I bull I

I ~ ~ ~ t -J ~~ - _

r

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 17 Unalakleet Area Temperatures 1983

18

16

14

12

til 10I

u-G) 80 CI) G) G) 6 C) G)

Q 4

2

C) C)

__ Air

0--0 River 2

0

-2

-4

---------~ ~

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August 5e

4

Figure 18 Unalakleet River Turbidity and Depth 1983

__ Secchi Reading

-t ()

II) G)-G)

3

iE 2

1

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August

~ 1 _ ~ r--- I shy I __ I 01 --shy

Figure 19 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1981-83

27 31 5

May

_1981

____ 1982

o 0 1983 11) C)

Changed to 5 78 mesh

I

t

~-~o-~ Q-O--Oolt)-(IQ-----l

--1

_10 15 20 25 30 5 10 15 20 25 31

June July

I I I

~

0 ~

r E ~

CJ shyE 0 0 I

shyr u-cu CJ

E ~

CJ

4

35

30

25

20

15

10

05

Figure 20 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 78 mesh 1981-83

5

4 lI 0

z

E lI 0 3 E-0 0 2 r CJ-cu 0

E lI 1 0

__1981 ~~

~ ___1982

a 01983 5 148 mesh from 65-810

_----shy-- 0 - -- C1) A - _ - ~

~ I

I

II I I I I I

I I

1

~ -

-

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 21 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 mesh- 1981-83

8

70

60

50

40 0

r 30E

0 20E-0 0 10 s= u 8 tV 0 6E 0 4

2

__1981 ____ 1982

_1983

shy--- -- shy--- shy J - -

I

I

C1- J

I

-----l---l ~--~r---------------r--

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 22 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1981-83

_1981

~ __ 1982

~1983

25

00I _ __ _ _ C)~ I __ _ I

I V o 20 rt I I

E I AshyI o E 15-o o z u 10 tU o E I o 5

I

1 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

July August 5

----------------------------------------------------------------

Table 1 Unalakleet River Subsistence King Salmon Index 1983

Number of Number of Date Fishermen Chinook Average

08 02 18 05 05 00 02 58 92 62 72 72 42 28 52 60 62 20 47 50 35 25 15

June 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Totals

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 4 4 4

4

3 1 7 2 2 o 1

23 37 25 29 29 17 11 21 24 25

6 14 15 14 H~

6

322

~

39

---------------------- ---------- --------------------------------------

----------------------------------------------------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983

Daily Proportion Cumu1 Prop Date South North Total of Total Cumulative of Total

64 7 23 30 1313131 313 013131 65 44 187 231 00137 261 01308 66 12 162 174 01305 435 01313 67 8 283 291 1313139 726 01322 68 0000 726 13022 69 3 221 224 013137 950 13029 610 26 245 271 131308 1221 13037 611 56 254 310 131310 1531 131347 612 44 736 780 013 24 2311 13071 613 64 1188 1252 01339 3563 01113 614 59 1752 1811 0056 5374 0166 615 97 844 941 01329 6315 0195 616 165 729 894 0028 7209 0223 617 151 i 604 1755 0054 8964 middot 0277 618 i ll 1524 1635 0051 10599 13328 619 175 2000 2175 0067 12774 13395 620 171 21320 2191 0068 14965 0463 621 220 1613 1833 0057 16798 0520 622 199 2065 2264 0070 19062 0590 623 362 21334 2396 0074 21458 13664 624 876 3403 4279 13133 25737 0797 625 1244 2023 3267- 0101 29004 0898 626 738 1601 2339 0073 31343 0971 627 573 3265 3838 0119 35181 1090 628 547 1868 2415 0075 37596 1165 629 528 4028 4556 0141 42152 1306 630 430 430 0013 42582 1319 71 240 240 01307 42822 1326 72 201 975 1176 0036 43998 1362 73 309 8842 9151 0284 53149 1646 74 475 6385 6860 0213 60009 1859 75 565 3342 3907 0121 63916 1980 76 1377 2094 3471 0108 67387 2088 77 1416 3173 4589 0142 71976 2230 78 1472 1420 2892 0090 74868 2320 79 2071 1452 3523 01113 78391 2430 710 3318 2434 5752 0178 84143 2608 711 2673 2866 5539 13172 89682 2780 712 1665 1747 3412 13106 93094 2886 713 21317 1951 3968 13123 97062 3009 714 2991 2664 5655 0175 102717 3184 715 2646 2548 5194 13161 107911 3345 716 2488 2886 5374 0167 113285 3512 717 1585 4063 5648 0175 118933 3687 718 3559 9326 12885 0400 131818 4087 719 2948 2398 5346 13166 137164 4253 720 1640 3330 4970 0154 142134 4407 721 2416 6420 8836 0274 150970 4681 722 3298 3298 0102 154268 4783 723 5007 5007 0155 159275 4938

40

--------------------------------------------------------------------

--------------------------------------------------------------------

-----------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983 (Continued)

Daily Proportion Cum Prop Date South North Total of Total Cumu1at i ve of Total

724 4005 7804 11809 0366 171084 5304 725 2453 3392 5845 0181 176929 5485 726 2166 12094 14260 0442 191189 5927 727 1914 4472 6386 0198 197575 6125 728 1603 3463 5066 0157 202641 6282 729 1251 1914 3165 0098 205806 6380 730 1710 2495 4205 en30 210011 6510 731 2542 1887 4429 0137 214440 6647 81 4479 2271 6750 0209 221190 6856 82 1103 1806 2909 0091 224099 6947 83 1719 942 2661 0083 226760 bull 7030 84 1519 2557 4076 0126 230836 7156 85 1259 1113 2372 0074 233208 7230 86 940 2189 3129 0097 236337 7327 87 1467 4354 5821 0180 242158 7507 88 2318 1584 3902 0121 246060 7628 89 2098 1505 3603 0112 249663 7740 810 2629 1517 4146 bull 0129 253809 7869 811 3753 1091 4844 0150 258653 8019 812 1489 523 2012 0062 260665 8081 813 744 353 1097 0034 261762 8386 814 981 981 bull 0030 262743 8145 815 2324 2324 0072 265067 8217 816 2638 2638 0082 267705 8299 817 2073 731 2804 0087 270509 8115 818 2244 675 2919 0091 273428 8477 819 3240 696 3936 0122 277364 8599 820 2363 503 2866 0089 280230 8688 821 6789 1111 7900 0245 288130 8933 822 6489 563 7052 0219 295182 9152 823 5077 298 5375 0167 300557 9319 824 2616 298 2914 0090 303471 9409 825 3933 412 4345 0135 307816 9544 826 1393 554 1947 0060 309763 9604 827 1203 463 1666 0052 311429 9656 828 1197 542 1739 0054 313168 9710 829 1244 221 1465 0045 314633 9755 830 1011 199 1210 0038 315843 9793 831 718 214 932 0029 316775 9822 91 1324 318 1642 0052 318417 9874 92 1362 307 1669 0052 320086 9926 93 1146 314 1460 0045 321546 9971 94 652 296 948 bull 0029 322494 10000

148465 174029 322494 10000

41

----------------------------------------------------------------------

-------------------------------------------------------------------- --

------

TABLE 3A Unalakleet River Species Apportionment by Test Period King Salmon 1983

3-Day App Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 76 0272 76 0272

69-612N 28 0100 104 0372

612N-615 461 1652 565 2024

616-619N 419 1502 984 3526

619N-622 170 0609 1154 4135

623-626N 722 2588 1876 6723

626N-629 264 0946 2140 7669

630-73N 103 0639 2243 8038

73N-76 188 0674 2431 8712

77-710N 0 0000 2431 8712

710N-713 0 0000 2431 8712

714-717N 267 0957 2698 9969

717N-720 0 0000 2698 9669

721-724N 92 0331 2790 1 0000

724N-727 0 0000 2790 10000

728-731N 0 0000 2790 1 0000

731N-83 0 0000 2790 1 0000

2790 10000

42

Dates

714-717N

717N-720

721-724N

724N-727

728-731N

731N-83

84-87N

87N-810

811-814N

814N-817

818-821N

821N-824

825-828N

828N-831

91-94

TABLE 3B Unalakleet River Species Apportionment by Test Period Coho Salmon

3-Day Count

583

338

436

550

2650

1174

793

1435

5074

1280

435

2265

171H3

1983

Proportion of Season Total

0000

0000

0000

0343

0199

0256

0323

1558

0690

0466

0843

2983

0752

0256

1331

Cumulative Count

583

921

1357

1907

4557

5731

6524

7959

13033

14313

14748

17013

Cumulative Proportion

0000

0000

0000

0343

0542

0798

1121

2679

3369

3835

4678

7661

8413

8669

10000

43

------------------------------------------------------------------

------------------------------------------------------------------

----- ------

TABLE 3C Unalakleet River Species Apportionment by Test Period Pink Salmon 1983

3-Day P roport ion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 0 0000

6l2N-615 0 0000

616-6l9N 97 0012

6l9N-622 332 0036

623-626N 1245 0136

626N-629 6624 0721

630-73N 3699 0403

73N-76 10762 1171

77-7l0N 7704 0838

710N-7l3 8529 0928

714-717N 9771 1063

717N-720 13845 1507

721-724N 11361 1236

724N-727 6544 0712

728-731N 3545 0386

731N-83 1628 0177

84-87N 1224 0133

87N-810 1777 0193

811-814N 802 0087

814N-817 561 0061

818-821N 533 0058

821N-824 8313 13091

825-828N 468 0051

828N-831 0 0000

91-94 0 0000

91881 10000

0 0000

0 0000

0 0000

97 0012

429 0048

1674 0184

8298 0905

11997 1308

22759 2479

30463 3317

38992 4245

48763 5308

62608 6815

73969 8051

80513 8763

84058 9149

85686 9326

86910 9459

88687 9652

89489 9739

90050 9800

90583 9858

91413 9949

91881 10000

91881 10000

91881 1 0000 44

------------------------------------------------------------------

------------ ------------------------------------------------------

----- ------

TABLE 3D Unalakleet River Species Apportionment by Test Period Chum Salmon 1983

3-Day Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 100 0017

612N-615 268 0046

616-619N 838 0144

619N-622 1180 0202

623-626N 2744 0471

626N-629 1569 0270

630-73N 796 0137

73N-76 2972 0510

77-710N 2068 0355

710N-713 2622 0450

714-717N 4133 0710

717N-720 5596 0960

721-724N 4978 0854

724N-727 8974 1540

728-731N 2241 0385

731N-83 2079 ~0357

84-87N 3009 0516

87N-810 2432 0417

811-814N 937 0161

814N-817 454 0078

818-821N 2584 0443

821N-824 2739 0470

825-828N 1783 0306

828N-831 765 0131

91-94 412 0070

58273 10000 45

0 0000

100 0017

368 0063

1206 0207

2386 0409

5130 0880

6699 1150

7495 1287 f

10467 1797

12535 2152

15157 2602

19290 3312

24886 4272

29864 5216

38838 6666

41079 7051

43158 7408

46167 7924

48559 8341

49536 8502

49990 8580

52574 9023

55313 9493

57096 9799

57861 9930

58273 1 0000

-------------------------------------------------------------

------------------------- ------------------------------------

TABLE 4 Unalakleet River Test Net Proportions by Sample Perio-d 1983 ( Selective CPUE)

Dates Chinook Coho Pink Chum Misc

64-68 105 00 00 895

69-612N 24 00 83 893

612N-615 1C~ 5 00 61 834

616-619N 78 18 156 748

619N-622 23 45 160 772

623-626N 65 112 247 576

626N-629 22 553 131 294

630-73N 16 576 124 284

73N-76 10 572 158 260

77-710N 00 555 149 296

710N-713 00 540 166 294

714-717N 14 00 513 217 256

717N-720 00 00 532 215 253

721-724N 04 00 493 216 287

724N-727 00 18 202 277 503

728-731N 00 23 242 153 582

731N-83 00 30 112 143 715

84-87N 44 98 241 617

87N-810 182 122 167 529

811-814N 139 95 111 655

814N-B17 96 68 55 7B1

B18-B21N 105 39 1B9 667

821N-824 263 43 142 552

825-B28N 145 53 202 600

828N-831 97 00 171 732

91-94 396 00 72 532

46

--------

--------

TABLE 4 Una1ak1et River Test Net Proportions 1983 ( Selective CPUE) (Continued)

Comparative Apportionment

Species Apportionment

Chinook 2790 Coho 17013 Pink 91881 Churn 58273

------shySubtotal 169957

Misc Species 152537 ------shy

Total 322494

Substrate Comparison -------------------shy

Bank Counts -----shy

South 148465 North 174029

------shy

Total 322494

Percent of Total Counts

09 53

285 181

5408

472

1000

Percent

460 540

1000

47

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TABLE 5A Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

May 27 28

21 5 482

13 13

1313

1313 21 5 697

13 13

1313

1313 30 240 0 013 937 0 00 31 246 2 41 1183 2 08

June 1 237 0 00 1420 2 07 2 3

256 585

13 13

013 bull 13 13

1676 2 261

2 2

6bull 13 4

5 6 8

160 120 middot 125

13 1

13 42 130

2 421 2541 2666

~ 2 3 3

bull 13 4 136 136

9 122 0 130 2788 3 05 11 117 00 2905 3 05 12 126 13 00 3031 3 05 13 117 1 43 3148 4 06 15 118 0 013 3266 4 136 16 116 1 43 3382 5 138 18 240 13 130 3622 5 07 19 121 0 00 3743 5 07 20 116 0 00 3859 5 136 22 118 1 42 3977 6 138 23 119 1 42 4196 7 08 25 240 0 013 4336 7 138 26 119 13 1313 4455 7 138 27 119 13 1313 4574 7 138 29 1213 13 130 4694 7 137 313 1213 13 00 4814 7 07

July 2 238 0 1313 51352 7 07 3 118 13 013 51713 7 07 4 118 1 42 5288 8 138 6 122 0 00 5410 8 07 7 116 13 00 5526 8 07

10 126 0 1313 5652 8 07 11 119 0 013 5771 8 07 13 116 13 130 5887 8 07 14 119 2 84 6006 10 07 17 122 0 00 6128 10 07 18 112 0 1313 6240 10 136 20 119 13 00 6359 10 06 21 112 0 013 6471 10 06

6471 10

48

------------------------------------------------------------------

------------------------------------------------------------------

TABLE 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983

Cum Cum Date Hours Catch CPUE Hours Catch CPUE

July 24 26

115 120 0 00

115 235

0 0

00

00 27 117 4 00 352 0 00 29 117 0 137 469 4 34 31 116 3 103 585 7 48

August 2 122 0 00 706 7 40 3 122 2 66 828 9 43 5 118 1 34 946 10 42 7 128 14 437 1074 24 89 9 257 14 218 1331 38 114

10 125 21 672 1456 59 162 12 13 middot- 0 00 1469 x 59 161 14 10 7 12 449 1576 71 180 16 122 2 66 1698 73 172 17 123 6 196 1821 79 174 19 118 1 34 1939 80 165 21 112 6 214 2051 86 168 23 120 3 100 217 1 89 164 24 115 2 70 2286 91 159 26 115 5 174 2401 96 160 28 119 0 00 2520 96 152 30 119 4 1 34 2639 100 152 31 117 1 34 2756 101 147

Sept 2 123 5 33 2879 106 147 4 479 15 125 3358 121 144 6 238 11 185 3596 132 147 7 237 5 84 3833 137 143 8 238 6 1 01 4071 143 141 9 242 10 1 65 4313 153 142

10 242 3 50 4555 156 137 11 242 2 33 4797 158 132 12 241 8 133 5038 166 132 14 227 14 247 5265 180 137 15 242 9 149 5507 189 137 16 210 3 57 5717 192 134 17 239 2 33 5956 194 130 18 230 2 35 6186 196 127 20 489 4 33 6675 200 120 21 24 3 50 6915 203 117 22 242 0 00 7157 203 113 23 234 1 17 7391 204 110

----shy

7391 204

Mesh size = 5 14 from 724 to 810

49

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TABLE 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE ------~-----------------------------------------------------------June 16 122 1 33 122 1 33

17 118 0 bull 0 0 240 1 17 20 120 2 67 360 3 33 21 118 0 00 478 3 25 23 119 2 67 597 5 34 24 119 3 102 716 8 45 27 116 19 655 832 27 130 28 120 22 733 952 49 206 30 120 40 1333 1072 89 332

July 1 115 36 1252 1187 125 421 4 122 30 983 1309 155 474 5 114 47 1649 1423 202 568 7 118 30 1016 1541 232 602 8 120 shy 24 800 1661 -$ 256 616

11 122 42 1377 1783 298 669 12 120 29 967 1903 327 687 14 116 37 1276 2019 364 721 15 118 40 1356 2137 404 756 18 121 60 1976 2258 464 822 19 119 30 740 2377 494 831 21 125 61 1952 2502 555 887 22 118 25 847 2627 580 883 25 122 16 525 2749 596 867 26 116 15 517 2865 611 853 28 122 28 918 2987 639 856 29 117 11 376 3104 650 838

August 1 120 7 233 3224 657 815 2 119 9 303 3345 666 796 4 120 3 100 3465 669 772 5 118 5 170 3583 674 752 8 114 7 245 3697 681 734

11 123 7 337 3 82 0 688 720 15 118 2 68 3938 690 701 16 113 5 177 4051 695 686 18 98 3 122 4149 698 673 19 119 1 34 4268 699 655 22 112 0 00 4380 699 638 23 115 0 00 4495 699 622 25 120 2 66 4615 701 606 26 112 1 36 4727 702 594 29 116 0 00 4843 702 580 30 11 5 0 00 4958 702 566

Sept 1 115 0 00 5079 702 553 2 112 0 00 5191 702 541

----shy5079 702

50

-----------------------------------------------------------------

------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

June 5 73 0 00 73 0 00 7 126 0 00 199 0 00 8 127 0 00 326 0 bull 0 0

10 11 4 3 105 440 3 27 12 113 2 71 553 5 36 14 119 1 34 672 6 36 15 116 4 138 788 10 51 17 116 3 103 904 13 56 19 118 6 203 1022 19 74 21 118 0 00 1140 19 67 22 117 10 342 1257 29 92 24 116 3 103 1373 32 93 26 119 11 370 1492 43 115 28 11 8 6 203 1610 $ 49 122 29 115 13 452 1725 62 144

July 1 119 8 269 1844 70 152 3 119 17 571 1963 87 177 5 119 13 437 2082 100 192 6 12 0 17 567 2202 117 213 8 121 7 231 2323 124 214

10 11 4 18 632 2437 142 233 12 115 12 417 2552 154 241 13 116 37 1276 2668 191 286 15 117 16 547 2785 207 297 17 11 8 31 1051 290 3 238 328 19 118 18 610 3021 256 339 20 115 29 1009 3136 285 364 22 122 17 557 3258 302 371 24 115 24 835 3373 326 387 26 120 19 633 3493 345 395 27 117 11 376 3610 356 394 29 117 14 479 3727 370 397 31 116 18 621 3843 388 404

August 2 121 9 298 3964 397 401 3 122 17 557 4086 414 405 5 11 8 8 271 4204 422 402 7 128 19 594 4332 441 407 9 257 10 156 4589 451 393

10 125 14 448 4714 464 394 12 13 1 308 4727 465 393 14 107 5 187 4834 470 389 16 122 4 131 4956 474 383 17 123 15 488 5079 489 385 19 118 8 271 5197 497 383 21 112 3 107 5309 500 378 23 120 6 200 5429 506 373 24 115 7 243 5544 513 370

51

-----------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 (Continued)

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

August 26 115 5 174 5657 518 366 28 119 1 34 577 6 519 359 30 119 4 134 5895 523 355 31 117 0 00 6012 523 3 48

Sept 2 123 3 98 613 5 526 343 4 479 2 17 6614 528 319 6 238 1 17 6852 529 309 7 237 0 00 7089 529 298 8 9

238 242

1 2

17

33 7327 7569

clt

530 532

289 281

10 242 3 50 7811 535 274 11 242 0 00 8053 535 266 12 241 2 33 8294 537 259 14 227 3 53 8521 540 253 15 242 0 00 8763 540 246 16 210 1 19 8973 541 241 17 239 2 33 9212 543 236 18 230 0 00 9442 543 230 20 489 0 00 9931 543 219 21 240 2 33 10171 545 214 22 242 0 0 10413 545 209 23 234 0 00 10647 545 205

----shy

10647 545

52

------------------------------------------------------------------------

------

TABLE 6A Unalakleet River Sonar Site Drift Sets5 1 4n Me sh 19 83 bull

Date Time Result

July 19 1405-1413 1 burbot July 23 1040-1055 1 pink caracass July 27 1520-1530 1 coho August 3 1444-1501 4 coho August 22 1930-1937 0 August 23 937-943 1 coho 1 pink carcass August 26 1117-1127 1 coho 3 churn August 31 1018-1034 3 churn

TABLE 6B Unalakleet River Sonar Site Beach Seines 1983

Date Time Distance Result

July 20 1445 120 meters 4 pink 1 churn 13 Dolly Varden 1 whitefish

July 25 1500 120 meters 6 pink 1 churn 1 Dolly Varden 4 whitefish 1 grayling

July 28 1700 120 meters 4 coho 2 pink 2 churn 1 Dolly Varden

August 1 2010 300 meters 4 pink 3 churn 8 Dolly Varden

August 4 1015 130 meters 5 coho 3 pink 3 churn 65 Dolly Varden 3 whitefish 3 grayling

August 24 1110 130 meters 18 coho 2 Dolly Varden 2 grayling

August 29 1715 120 meters 11 coho 1 pink 69 churn 1 Dolly Varden 2 grayling

Seine done at mile 12 Unalakleet River

53

--------------------------------------------------------------------------------------------------

--------------------------------------------------------------------------------------------------

TABLE 7 AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER CATCH SAMPLE SPORT CATCH AND SPAWNING SURVEYS 1983

II

COMBINED 3-2 4-2 4-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 31 646 6702 5 104 5010 8 167 5688 1 21 5900

Female 17 354 8540 o o 1 21 5450 o o

Total 48 1000 7353 5 104 5010 9 188 5661 1 21 5900

~ 11)

5-2 6-2 7-2 7-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 11 229 7382 6 125 8350 0 0 0 0

Female 2 42 7925 12 250 8742 1 21 10650 1 21 8350

Total 13 271 7465 18 375 8611 1 21 10650 1 21 8350

TABLE 8A AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER TEST NET SAMPLE 1983

-----~-------------------------------------------------------------------------------------------------------

gt

COMBINED 4-2 5-2 5-3 6-2 7-2 NO LENGIH NO LENGIH NO LENGIH NO LENGTH NO LENGTH NO LENGTr

8 14 n

Male 3 333 8107 0 1 111 5800 o 0 2 222 9260 0 0 Female 6 667 8295 0 0 1 111 7600 o o 4 444 8310 1 111 8930 Total 9 10 e 0 8232 0 o 2 222 6700 o o 6 667 8627 1 111 8930

If) If)

5 14 Male 19 1000 6298 12 632 5392 4 211 6990 0 o 3 158 8997 0 0 Female o 0 o o o o o o 0 0 0 0 Total 19 1000 6298 12 632 5392 4 211 6990 o o 3 158 8997 0 0

4 n or Smaller Male 6 667 5930 1 111 4660 2 222 6325 3 333 6090 0 o 0 o Female 3 333 8970 o o o o o o 3 333 8970 0 o Total 9 1000 6943 1 111 466 2 222 6325 3 33 3 6090 3 33 3 8970 0 0

TOTAL Hale 28 757 6413 13 351 5336 7 189 6630 3 8 1 6090 5 13 5 9102 o 0 Female 9 243 852 o o 1 27 7600 o o 7 189 8593 1 2 7 8930 Total 37 1000 6925 13 351 5336 8 216 6751 3 8 1 6090 12 324 88 e 5 1 2 7 8930

---------------------------------------------------------------------------------------------------------

---------------------------------------------------------------------------------------------------------

TABLE 8B AGE SEX AND SIZE COMPOSITION OF NORTON SOUND COHO SALMON UNALAKLEET RIVER TEST NET SAMPLE 5 14 AND 5 78 GEAR 1983

COMBINED 3-2 4-3 4-4 5-4 NO LENGIH NO LENGIH NO LENGTH NO LENGIH NO LENGTH

Male 9 900 5489 0 0 9 900 5489 0 0 Female 1 10 bull 0 552 QJ QJ 0 1 10QJ 5520 0 0 Total 10 1000 5492 0 0 10 1000 5492 0 0 725-731

bull LI)Male 15 938 5645 15 938 5645 Female 1 62 575 QJ 1 62 575 QJ Total 16 lQJ0QJ 5651 16 100QJ 5651 81-87

Male 24 545 5668 23 523 5768 1 23 3350 Female 20 455 5631 20 455 5631 0 0 Total 441QJ0QJ 5651 43 977 57 QJ 4 1 23 335 QJ 88-814

Male 7 500 5797 7 500 5797 QJ 0 Female 7 500 5596 6 429 5587 1 71 5650 Total 14 1000 5696 13 929 1 71 5650570 815-821

Male 5 455 5492 5 455 5492 Female 6 545 5552 6 545 5552 Total 11 lQJ00 5525 11 100QJ 5525 822-828

made from the time the first king salman is caught early in June through the remainder of that month These people must be trustworthy conscientious about checking their nets and fairly successful The average daily catch is compared to the previous day to develope the annual trend and the total catches and the annual trend is compared to past years Commercial catch and effort data and the up-river test net data are used in conjuction with the subsistence catch to anticipate strategies

future catches and management

During late September made of Unalakleet

an The

extensive door to door survey is Annual Management Report covers

subsistence surveys in detail

RESULTS

~istence Survey

The Unalakleet subsistence survey made in late September interviewed 74 subsistence fishermen 68 of whom fished in the river and 17 who fished in the ocean The catch was predominantly from the river with 1480 king 6311 coho 13458 pink and 4124 chum salmon reported The ocean subsistence catch was 388 king 577 coho 350 pink and 277 chum salmon

The mean chinook salmon catch per fisherman peaked on June 16 This compares with July 3 in 1982 and June 19-22 in 1981 All subsistence fishermen surveyed in 1983 were fishing within one mile of the river mouth

Chinook subsistence survey results are presented in Table 1 and Figure 3 As in 1981 and 1982 the variances in nets fishing times and net locations call for calculation of mean catch per fisherman as opposed to catch per unit effort

Sonar

During the period from June 4 to September 4 the final sonar count was 322494 148465 (460) counts were tallied on the south bank and 174029 (540) counts were tallied on the north bank

The daily sonar counts (Table 2) were adjusted by the test net proportions (Table 4) to give the following escapement estimates for the period June to September 4

-8shy

Species Total Count LQf Total

Chinook 2790 09 Coho 17013 53 Pink 91881 285 Chum 58273 181 Other 152537 AL2

322494 1000

Tables 3A 3B 3C 3D and 4D present this data by 3-day sample period Based on discussions with Al Menin and Dave Gaudet about the ability of sonar counters to discriminate between various target shapes and sizes any fish two and one half pounds or laterally compressed fish ~f one pound or larger could be counted by a sonar calibrated for pink salmon Fish other than salmon considered countable by the sonar counter included arctic char grayling burbot and broad humpback and Alaska whitefish

Peak adjusted apportioned sonar counts were on June 23 for chinook August 21 for coho July 18 for pink and July 25 for chum salmon (Tables 3A 3B 3C and 3D Figures 4A 4B 4C and 4D)

Representative passage rates on the south bank by sector and by hour for July 3-5 and August 21-23 are presented in Figures 6 and 7 These periods were chosen because of minimal adjustments to raw counts north bank counts are not presented due to lack of relatively clean data for those periods

Test Fishing

A total of 19 chinook (74 male - 26 female) 294 coho (61 male 39 female) 1156 pink (52 male - 48 female) and 915 chum (54 male - 46 female) was captured from May 27 to September 23 The fish were sampled and delivered to Hartha Nanouk a local subsistence fisherman as per agreement for the use of her traditional set-net site

Based on the single most effective test net CPUE the chinook migration did not peak as such but rather showed most consistent catches on June 22 and 23 coho migration peaked from August 10-14 pinks from July 18-22 and chum on July 13

-9shy

Comparisons of daily CPUE and cumulative CPUE for all salmon species are presented in Tables SA 58 5C and 5D and Figures 8 thru 15 Of interest although not as useful for annual comparison due to different test net methods net mesh sizes fishing time etc the actual fish caught from 1981 to 1983 are

~ 1982 un 41 chinook 39 chinook 39 chinook

107 coho 310 coho 294 coho 1463 pink 5114 pink 1156 pink

722 chum 375 chum 915 chum

f

Age Sex and Size Composition of Test Net Catches

An age analysis of scales collected during the project indicated the following age compositions king salmon all gear sizes (4-2131 5-2 22~ 5-3816-23217-2 3) coho salmon 5 14 and 5 78 gear (3-2 051 4-3 981 4-4 051 5-4 l) chum salmon 5 14 and 5 78 gear (3-1 21 4-1 611 5-1 37) Tables 7 thru 9D show the age composition of the various species broken down by date and the mesh sizes used during the project

Counting Towers

As cited visual tower counts could not be made on the Unalakleet River due to river width surface disturbances turbidity etc However visual observations proved invaluable in identifying spawning behavior etc and resulted in the downstream relocation of the north bank substrate and development of the method used to adjust north bank sonar counts

Drift SetsBeach Seines

Tables 6A and 68 present the results of drift sets and beach seines respectively Drift set results indicate that the portion of the river not isonified was not used by migrating salmon ie the species most countable coho pink and chum salmon would seem to follow the banks and were counted by the side-scan sonar

Beach seines proved useful in verifying the high presence of

-10shy

species other than salmon the relative abundance of coho salmon in August and the presence of spawning churn salmon in the south bank substrate area

Riyer SurveysAerial SurVeys

On July 29th 32 miles of the North River were surveyed by a two-person crew for the purpose of counting live chinook and sampling chinook carcasses A total of 166 live chinook were counted and 3 chinook carcasses were sampled with approximately half of the chinook counted between mile 25 and mile 32

Originally the Old Woman River survey was to be a six-day trip Due to the damage the plane suffered dropping the first crew member off the second member and support gear was not av~ilable for the survey as planned~ The survey of the Old Woman River August 6-8 counted 60 king salmon but only four samples were collected Weather prevented the survey of the main river

King Salmon Spo rt Fish Survey

A sport fishing lodge on the Unalakleet River is responsible for the majority of the sport fishing effort Periodic surveying of lodge personnel indicates that a fair quantity of king salmon are harvested by sport fishing A quantitative survey was not done however due to limited time available A total of 43 chinook was sampled from sport fishing catches

DISCUSSION

River levels were lower than normal during the spring of 1983 due to the lack of snow accumulation the previous winter The Unalakleet River cleared early and became quite low during late June and early July The low water allowed the counting towers at the sonar site to be used during calm survey days which wasnt possible during 1982

Tower observations made as early as June 28 showed serious milling problems at the north bank sonar site The sonar was moved to a new site on July 2 Milling fish were still a considerable problem at the new site but about half the hourly count were considered acceptable during mid-July Milling salmon were a problem through most of the field season Milling salmon of all four species were observed

-11shy

during the latter half of each respective migration Pink salmon presented the worst problem and churn the least Unfortunately milling pinks invalidated the churn count since the two runs overlap Coho salmon exhibited some milling but an accurate evaluation of this problem was hampered by turbid water Milling coho became a problem after August 20

The milling observed from the towers was not apparent to the observer at the oscilloscope because of the overwhelming number of spikes present at that stage of the salmon migration During 1982 when tower observations were not possible the oscilloscope appeared to have an extraordinary number of spikes The large pink salmon count recorded in 1982 may have been an artifact of milling behavior that was unobservable then Commercial catch and test net catch statistics indicate a large pink salmon run f However it is likely fish milling over the substrate exaggerated the sonar count although without tower observations it can not be proven

Another problem observed during the 1983 field season was avoidance of the substrate by all fish species This problem was at its worst when water was low and clear Angling the substrate slightly downstream as it was after July 15 helped considerably By extending the sonar beam periodically it was determined that as visibility decreased so did avoidance

Species apportionment of the sonar count was done using test net catches Some of the problems encountered with the sampling scheme should be pointed out Test nets were assumed to sample the same portion of the river as the sonar Since three net lengths were used this seemed suspect Different species migrate at different depths The non-salmon species tend to migrate in shallow water near shore and generally the larger species migrate in deeper water nearer mid-stream Since only a IS-fathom net of the most efficient type for non-salmon species was fished in the preferred habitat for these fish it is likely that the calculated efficiency was too high The other test nets were longer and also sampled some preferred areas for the targeted species

The opposite case is true for king salmon The 8 14 net is 20 fathoms longS fathoms shorter than the other nets used on this project This net does not cover all of the area preferred by king salmon This means king salmon

-12shy

escapement is probably underestimated but the 20 fathom net samples an area further out than the sonar counter even with its beam extended So the number of king salmon counted by the sonar is over estimated King salmon make up such a small percentage of the total salmon run that counting errors are more significant than this apportionment error

Very few churn and pink salmon were caught in the offshore end of the nets It is assumed these long nets had very little effect on the sonar count species apportionment

CONCLUSION

The feasibility of counting salmon in the Unalakleet River using side-scanning sonar is unlikely due to milling fish and the inal1ility to accurately apportion the sonar count to the various fish species It is possible that a partial escapement count could be made further up river above one or more of the major tributaries to the system The new north bank sonar site that showed some improvement over the former site had two differences that seemed to affect salmon migration The current was faster over the substrate at the second site and the river gravels were less ideal spawning habitat The new site was located below a rock bluff on the outside of a river bend

There are two similar sites up river about ten miles where the current is faster and the bottom is even less conducive to spawning During the 1984 field season a comparison of the smoother running south bank site and these up-river sites could be made The best time to do this would be during August when only coho salmon are migrating The counter should be operating by August 15 prior to milling activity and maintained for a week to evaluate if milling salmon became apparent later after the migration peaked The south bank site could be used as a control for comparison to 1983

-13shy

I I

5 1 2

Miles No tt h _

shy

R Iv er

Figure 1 Unalakleet Escapement Project

lt

Son sr

Fig u r e 2 S 0 0 a r Sit eSc hem a tic

ITower

Original Ninth Bank Sonar

Drift sets 5 minutes

Lf)

So t h Ban k Son a

lTower

o Work Tent

B Living Quarters

Figure 3Unalakleet Subsistence Survey 1983

Kin g- S a I m 0 n

1bull

10

9

c 8aI

-lE 11 t a til 7 ~ II 6 ~ U

5 til

0

c 4 til til

E 3 I

1 V

~ 2

1

27 1 5 10 15 20 25 30

~ June

Figure 4A Specie apportionment king salmon Un-alakleet sonar 1983

~

25

-l20

c 1 5 III () III

11

10

5

I

J

27 31 5 10 15 20 25 30 5 10 15 20 25 31

June Ju Iy

Figure 4B Specie middotapp~~tionment coho salmon Unalakleet sonar 1983

30

25

co ~

20

1 t~

C $

u 1 5 CD a

10

5

5 10 15 20 25 31 5 10 15 20 25 31 5

Ju August Sept e

Figure 4C Specie apportionment pink salmon Unalakleet sonar 1983

1 6

1 5

14

1 3

12

1 1

c II U CII

Ashy

10

9

a

7

01 ~

6

5

4

3

2

1

1 5 10 1 5

June

2 O 25 30 5 10 15 20

Ju Iy

25 31 5 10 15 20

August

25 31 5 10

Septem

Figure 40 Species apportionment chum salmon Unalakleet sonar 1983

16

1 5

1 4

13

1 2

1 1

10

9 c 8GI U

GI middot7 A

6

5

4

3

2

1

~

o N

~

1 5 10 15 20 25 30 5 10 15 20 25 3 1 5 10 15 20 25 31 5 10

June Ju Iy August Sept e

Figure 5 Specie apportionment Unalakleet sonar 1983

50

4

40

35

c J 30 0 U

~ 0 25 0 c Q)

u ~

Q) 20a

15

10

5

o L-_lt---__

King Coho Pink Chum Misc

21

----

Figure 6 Sector distribution of counts Unalakleet sonar1983

35

30

25

c 20 G)

() G) 15

0

10

5

35

30

25 c G)

() 20

G)

0 15

10

5

( s ()u t h ban k )

July 3-5

~-2 4 6 8 1 0 1 2 1 4 1 6shy

Sector

August 21-23

2 4 6 8 10 12 14 16

Sector

22

Figure 7 Hourly distribution of counts Unalakleet sonar 1983

(south bank)

14

12

10

c 8 GI U ~

6

July 3-5

~GI

I =~ Q

4

2 0

2 4 6 8 10 12 14 1 6 18 20 22 24

TIme

9

8

7

6

5 c GI U ~ 4 GI

Q

3

2

August 21-23

1

0

2 4 6 8 10 12 14

TIme

16

23

18 20 22 24

Figure 8 Unalakleet River Test Fishing Daily King CPUE in 8 14 mesh 1983

10

9 N

8 shy

7 I 0 c 6E

n

l J I I

0 0 5 c (J 4 co 0

3

2

1

I I

27 1 5 10 15 20 25 1 5 10 15 20 25 31

~ June July

Figure 9 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1983bull

~

middot10

09 U N

I 08 0 c 07E I ()

- 06 E-0 0 05 shy~ () 04 ca - ()

03E I 0 02

01

27 1 5 10 15 2Q 25 1 5 10 15 20 25 31

June July

Figure 10 Unalakleet River Test Fishing Daily Coho CPUE in 5 78 mesh 1983

1

6

5

I 0

NI II I 0 t

E 4

0 0 c 3() cu 0

2

1

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sept U

Figure 11 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1983

200

175

150

I 0 c 125E I ()

E

r-shy-0 I I N 0 100 c ()-as ()

75E I 0

50

25

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sel ber

20

Figure 12 Unalakleet River Test Fishing Daily Pink CPUE in 4 mesh 1983

18

I

0) N

II

16

I ishy

14 J 0 t 12shyE 0 10 0 shys 8 () as

0 6 1 I V 4

2

~ I

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

--

Figure 13 Unalakleet River Test Fishing Cumulat ive Pink CPUE in 4 mesh 1983

10

9 01 N 8

J 0 J 7 E J 0 6 E- 50 ~

amp 4() ca

0 3 E J

0 2

1

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

Figure 14 Unalakleet River Test Fishing Daily CPUE in 5 14 amp 5 78 mesh 1983

14

13shy

12

11

10

9 J 0 8

I z shy-E 7 0 0 shys ~u aI 0

4 I

31

2

1

II

0 C1)I 11

I I I II

bull y AA(net changed to 5 78

AA A 11 I

~ I~ V ~

- I

VI

1 5 10 15 20- 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

cJune July August

Figure 15 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 14 amp 5 78 mesh 1983

It

5

--l C)

net changed to 5 78

~ 4 o

c E (J ~

3E o o c 2 u ~ -(J

E ~ (J 1

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 16 Unalakleet River Test Fishing Catch Proportions 1983

60

55

---- King50

__ Coho 45

P--Q Pink

40 __ Chum

I LU 35J D I 0

30 ICQ 0 25 I

N Cl0 20

c G)

15u G)

D

10

5 A 1 I

I 4 I

I I

3 lt

~

2

I I1 - I bull I

I ~ ~ ~ t -J ~~ - _

r

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 17 Unalakleet Area Temperatures 1983

18

16

14

12

til 10I

u-G) 80 CI) G) G) 6 C) G)

Q 4

2

C) C)

__ Air

0--0 River 2

0

-2

-4

---------~ ~

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August 5e

4

Figure 18 Unalakleet River Turbidity and Depth 1983

__ Secchi Reading

-t ()

II) G)-G)

3

iE 2

1

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August

~ 1 _ ~ r--- I shy I __ I 01 --shy

Figure 19 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1981-83

27 31 5

May

_1981

____ 1982

o 0 1983 11) C)

Changed to 5 78 mesh

I

t

~-~o-~ Q-O--Oolt)-(IQ-----l

--1

_10 15 20 25 30 5 10 15 20 25 31

June July

I I I

~

0 ~

r E ~

CJ shyE 0 0 I

shyr u-cu CJ

E ~

CJ

4

35

30

25

20

15

10

05

Figure 20 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 78 mesh 1981-83

5

4 lI 0

z

E lI 0 3 E-0 0 2 r CJ-cu 0

E lI 1 0

__1981 ~~

~ ___1982

a 01983 5 148 mesh from 65-810

_----shy-- 0 - -- C1) A - _ - ~

~ I

I

II I I I I I

I I

1

~ -

-

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 21 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 mesh- 1981-83

8

70

60

50

40 0

r 30E

0 20E-0 0 10 s= u 8 tV 0 6E 0 4

2

__1981 ____ 1982

_1983

shy--- -- shy--- shy J - -

I

I

C1- J

I

-----l---l ~--~r---------------r--

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 22 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1981-83

_1981

~ __ 1982

~1983

25

00I _ __ _ _ C)~ I __ _ I

I V o 20 rt I I

E I AshyI o E 15-o o z u 10 tU o E I o 5

I

1 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

July August 5

----------------------------------------------------------------

Table 1 Unalakleet River Subsistence King Salmon Index 1983

Number of Number of Date Fishermen Chinook Average

08 02 18 05 05 00 02 58 92 62 72 72 42 28 52 60 62 20 47 50 35 25 15

June 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Totals

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 4 4 4

4

3 1 7 2 2 o 1

23 37 25 29 29 17 11 21 24 25

6 14 15 14 H~

6

322

~

39

---------------------- ---------- --------------------------------------

----------------------------------------------------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983

Daily Proportion Cumu1 Prop Date South North Total of Total Cumulative of Total

64 7 23 30 1313131 313 013131 65 44 187 231 00137 261 01308 66 12 162 174 01305 435 01313 67 8 283 291 1313139 726 01322 68 0000 726 13022 69 3 221 224 013137 950 13029 610 26 245 271 131308 1221 13037 611 56 254 310 131310 1531 131347 612 44 736 780 013 24 2311 13071 613 64 1188 1252 01339 3563 01113 614 59 1752 1811 0056 5374 0166 615 97 844 941 01329 6315 0195 616 165 729 894 0028 7209 0223 617 151 i 604 1755 0054 8964 middot 0277 618 i ll 1524 1635 0051 10599 13328 619 175 2000 2175 0067 12774 13395 620 171 21320 2191 0068 14965 0463 621 220 1613 1833 0057 16798 0520 622 199 2065 2264 0070 19062 0590 623 362 21334 2396 0074 21458 13664 624 876 3403 4279 13133 25737 0797 625 1244 2023 3267- 0101 29004 0898 626 738 1601 2339 0073 31343 0971 627 573 3265 3838 0119 35181 1090 628 547 1868 2415 0075 37596 1165 629 528 4028 4556 0141 42152 1306 630 430 430 0013 42582 1319 71 240 240 01307 42822 1326 72 201 975 1176 0036 43998 1362 73 309 8842 9151 0284 53149 1646 74 475 6385 6860 0213 60009 1859 75 565 3342 3907 0121 63916 1980 76 1377 2094 3471 0108 67387 2088 77 1416 3173 4589 0142 71976 2230 78 1472 1420 2892 0090 74868 2320 79 2071 1452 3523 01113 78391 2430 710 3318 2434 5752 0178 84143 2608 711 2673 2866 5539 13172 89682 2780 712 1665 1747 3412 13106 93094 2886 713 21317 1951 3968 13123 97062 3009 714 2991 2664 5655 0175 102717 3184 715 2646 2548 5194 13161 107911 3345 716 2488 2886 5374 0167 113285 3512 717 1585 4063 5648 0175 118933 3687 718 3559 9326 12885 0400 131818 4087 719 2948 2398 5346 13166 137164 4253 720 1640 3330 4970 0154 142134 4407 721 2416 6420 8836 0274 150970 4681 722 3298 3298 0102 154268 4783 723 5007 5007 0155 159275 4938

40

--------------------------------------------------------------------

--------------------------------------------------------------------

-----------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983 (Continued)

Daily Proportion Cum Prop Date South North Total of Total Cumu1at i ve of Total

724 4005 7804 11809 0366 171084 5304 725 2453 3392 5845 0181 176929 5485 726 2166 12094 14260 0442 191189 5927 727 1914 4472 6386 0198 197575 6125 728 1603 3463 5066 0157 202641 6282 729 1251 1914 3165 0098 205806 6380 730 1710 2495 4205 en30 210011 6510 731 2542 1887 4429 0137 214440 6647 81 4479 2271 6750 0209 221190 6856 82 1103 1806 2909 0091 224099 6947 83 1719 942 2661 0083 226760 bull 7030 84 1519 2557 4076 0126 230836 7156 85 1259 1113 2372 0074 233208 7230 86 940 2189 3129 0097 236337 7327 87 1467 4354 5821 0180 242158 7507 88 2318 1584 3902 0121 246060 7628 89 2098 1505 3603 0112 249663 7740 810 2629 1517 4146 bull 0129 253809 7869 811 3753 1091 4844 0150 258653 8019 812 1489 523 2012 0062 260665 8081 813 744 353 1097 0034 261762 8386 814 981 981 bull 0030 262743 8145 815 2324 2324 0072 265067 8217 816 2638 2638 0082 267705 8299 817 2073 731 2804 0087 270509 8115 818 2244 675 2919 0091 273428 8477 819 3240 696 3936 0122 277364 8599 820 2363 503 2866 0089 280230 8688 821 6789 1111 7900 0245 288130 8933 822 6489 563 7052 0219 295182 9152 823 5077 298 5375 0167 300557 9319 824 2616 298 2914 0090 303471 9409 825 3933 412 4345 0135 307816 9544 826 1393 554 1947 0060 309763 9604 827 1203 463 1666 0052 311429 9656 828 1197 542 1739 0054 313168 9710 829 1244 221 1465 0045 314633 9755 830 1011 199 1210 0038 315843 9793 831 718 214 932 0029 316775 9822 91 1324 318 1642 0052 318417 9874 92 1362 307 1669 0052 320086 9926 93 1146 314 1460 0045 321546 9971 94 652 296 948 bull 0029 322494 10000

148465 174029 322494 10000

41

----------------------------------------------------------------------

-------------------------------------------------------------------- --

------

TABLE 3A Unalakleet River Species Apportionment by Test Period King Salmon 1983

3-Day App Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 76 0272 76 0272

69-612N 28 0100 104 0372

612N-615 461 1652 565 2024

616-619N 419 1502 984 3526

619N-622 170 0609 1154 4135

623-626N 722 2588 1876 6723

626N-629 264 0946 2140 7669

630-73N 103 0639 2243 8038

73N-76 188 0674 2431 8712

77-710N 0 0000 2431 8712

710N-713 0 0000 2431 8712

714-717N 267 0957 2698 9969

717N-720 0 0000 2698 9669

721-724N 92 0331 2790 1 0000

724N-727 0 0000 2790 10000

728-731N 0 0000 2790 1 0000

731N-83 0 0000 2790 1 0000

2790 10000

42

Dates

714-717N

717N-720

721-724N

724N-727

728-731N

731N-83

84-87N

87N-810

811-814N

814N-817

818-821N

821N-824

825-828N

828N-831

91-94

TABLE 3B Unalakleet River Species Apportionment by Test Period Coho Salmon

3-Day Count

583

338

436

550

2650

1174

793

1435

5074

1280

435

2265

171H3

1983

Proportion of Season Total

0000

0000

0000

0343

0199

0256

0323

1558

0690

0466

0843

2983

0752

0256

1331

Cumulative Count

583

921

1357

1907

4557

5731

6524

7959

13033

14313

14748

17013

Cumulative Proportion

0000

0000

0000

0343

0542

0798

1121

2679

3369

3835

4678

7661

8413

8669

10000

43

------------------------------------------------------------------

------------------------------------------------------------------

----- ------

TABLE 3C Unalakleet River Species Apportionment by Test Period Pink Salmon 1983

3-Day P roport ion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 0 0000

6l2N-615 0 0000

616-6l9N 97 0012

6l9N-622 332 0036

623-626N 1245 0136

626N-629 6624 0721

630-73N 3699 0403

73N-76 10762 1171

77-7l0N 7704 0838

710N-7l3 8529 0928

714-717N 9771 1063

717N-720 13845 1507

721-724N 11361 1236

724N-727 6544 0712

728-731N 3545 0386

731N-83 1628 0177

84-87N 1224 0133

87N-810 1777 0193

811-814N 802 0087

814N-817 561 0061

818-821N 533 0058

821N-824 8313 13091

825-828N 468 0051

828N-831 0 0000

91-94 0 0000

91881 10000

0 0000

0 0000

0 0000

97 0012

429 0048

1674 0184

8298 0905

11997 1308

22759 2479

30463 3317

38992 4245

48763 5308

62608 6815

73969 8051

80513 8763

84058 9149

85686 9326

86910 9459

88687 9652

89489 9739

90050 9800

90583 9858

91413 9949

91881 10000

91881 10000

91881 1 0000 44

------------------------------------------------------------------

------------ ------------------------------------------------------

----- ------

TABLE 3D Unalakleet River Species Apportionment by Test Period Chum Salmon 1983

3-Day Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 100 0017

612N-615 268 0046

616-619N 838 0144

619N-622 1180 0202

623-626N 2744 0471

626N-629 1569 0270

630-73N 796 0137

73N-76 2972 0510

77-710N 2068 0355

710N-713 2622 0450

714-717N 4133 0710

717N-720 5596 0960

721-724N 4978 0854

724N-727 8974 1540

728-731N 2241 0385

731N-83 2079 ~0357

84-87N 3009 0516

87N-810 2432 0417

811-814N 937 0161

814N-817 454 0078

818-821N 2584 0443

821N-824 2739 0470

825-828N 1783 0306

828N-831 765 0131

91-94 412 0070

58273 10000 45

0 0000

100 0017

368 0063

1206 0207

2386 0409

5130 0880

6699 1150

7495 1287 f

10467 1797

12535 2152

15157 2602

19290 3312

24886 4272

29864 5216

38838 6666

41079 7051

43158 7408

46167 7924

48559 8341

49536 8502

49990 8580

52574 9023

55313 9493

57096 9799

57861 9930

58273 1 0000

-------------------------------------------------------------

------------------------- ------------------------------------

TABLE 4 Unalakleet River Test Net Proportions by Sample Perio-d 1983 ( Selective CPUE)

Dates Chinook Coho Pink Chum Misc

64-68 105 00 00 895

69-612N 24 00 83 893

612N-615 1C~ 5 00 61 834

616-619N 78 18 156 748

619N-622 23 45 160 772

623-626N 65 112 247 576

626N-629 22 553 131 294

630-73N 16 576 124 284

73N-76 10 572 158 260

77-710N 00 555 149 296

710N-713 00 540 166 294

714-717N 14 00 513 217 256

717N-720 00 00 532 215 253

721-724N 04 00 493 216 287

724N-727 00 18 202 277 503

728-731N 00 23 242 153 582

731N-83 00 30 112 143 715

84-87N 44 98 241 617

87N-810 182 122 167 529

811-814N 139 95 111 655

814N-B17 96 68 55 7B1

B18-B21N 105 39 1B9 667

821N-824 263 43 142 552

825-B28N 145 53 202 600

828N-831 97 00 171 732

91-94 396 00 72 532

46

--------

--------

TABLE 4 Una1ak1et River Test Net Proportions 1983 ( Selective CPUE) (Continued)

Comparative Apportionment

Species Apportionment

Chinook 2790 Coho 17013 Pink 91881 Churn 58273

------shySubtotal 169957

Misc Species 152537 ------shy

Total 322494

Substrate Comparison -------------------shy

Bank Counts -----shy

South 148465 North 174029

------shy

Total 322494

Percent of Total Counts

09 53

285 181

5408

472

1000

Percent

460 540

1000

47

-------------------------------------------------------------------

TABLE 5A Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

May 27 28

21 5 482

13 13

1313

1313 21 5 697

13 13

1313

1313 30 240 0 013 937 0 00 31 246 2 41 1183 2 08

June 1 237 0 00 1420 2 07 2 3

256 585

13 13

013 bull 13 13

1676 2 261

2 2

6bull 13 4

5 6 8

160 120 middot 125

13 1

13 42 130

2 421 2541 2666

~ 2 3 3

bull 13 4 136 136

9 122 0 130 2788 3 05 11 117 00 2905 3 05 12 126 13 00 3031 3 05 13 117 1 43 3148 4 06 15 118 0 013 3266 4 136 16 116 1 43 3382 5 138 18 240 13 130 3622 5 07 19 121 0 00 3743 5 07 20 116 0 00 3859 5 136 22 118 1 42 3977 6 138 23 119 1 42 4196 7 08 25 240 0 013 4336 7 138 26 119 13 1313 4455 7 138 27 119 13 1313 4574 7 138 29 1213 13 130 4694 7 137 313 1213 13 00 4814 7 07

July 2 238 0 1313 51352 7 07 3 118 13 013 51713 7 07 4 118 1 42 5288 8 138 6 122 0 00 5410 8 07 7 116 13 00 5526 8 07

10 126 0 1313 5652 8 07 11 119 0 013 5771 8 07 13 116 13 130 5887 8 07 14 119 2 84 6006 10 07 17 122 0 00 6128 10 07 18 112 0 1313 6240 10 136 20 119 13 00 6359 10 06 21 112 0 013 6471 10 06

6471 10

48

------------------------------------------------------------------

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TABLE 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983

Cum Cum Date Hours Catch CPUE Hours Catch CPUE

July 24 26

115 120 0 00

115 235

0 0

00

00 27 117 4 00 352 0 00 29 117 0 137 469 4 34 31 116 3 103 585 7 48

August 2 122 0 00 706 7 40 3 122 2 66 828 9 43 5 118 1 34 946 10 42 7 128 14 437 1074 24 89 9 257 14 218 1331 38 114

10 125 21 672 1456 59 162 12 13 middot- 0 00 1469 x 59 161 14 10 7 12 449 1576 71 180 16 122 2 66 1698 73 172 17 123 6 196 1821 79 174 19 118 1 34 1939 80 165 21 112 6 214 2051 86 168 23 120 3 100 217 1 89 164 24 115 2 70 2286 91 159 26 115 5 174 2401 96 160 28 119 0 00 2520 96 152 30 119 4 1 34 2639 100 152 31 117 1 34 2756 101 147

Sept 2 123 5 33 2879 106 147 4 479 15 125 3358 121 144 6 238 11 185 3596 132 147 7 237 5 84 3833 137 143 8 238 6 1 01 4071 143 141 9 242 10 1 65 4313 153 142

10 242 3 50 4555 156 137 11 242 2 33 4797 158 132 12 241 8 133 5038 166 132 14 227 14 247 5265 180 137 15 242 9 149 5507 189 137 16 210 3 57 5717 192 134 17 239 2 33 5956 194 130 18 230 2 35 6186 196 127 20 489 4 33 6675 200 120 21 24 3 50 6915 203 117 22 242 0 00 7157 203 113 23 234 1 17 7391 204 110

----shy

7391 204

Mesh size = 5 14 from 724 to 810

49

------------------------------------------------------------------

TABLE 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE ------~-----------------------------------------------------------June 16 122 1 33 122 1 33

17 118 0 bull 0 0 240 1 17 20 120 2 67 360 3 33 21 118 0 00 478 3 25 23 119 2 67 597 5 34 24 119 3 102 716 8 45 27 116 19 655 832 27 130 28 120 22 733 952 49 206 30 120 40 1333 1072 89 332

July 1 115 36 1252 1187 125 421 4 122 30 983 1309 155 474 5 114 47 1649 1423 202 568 7 118 30 1016 1541 232 602 8 120 shy 24 800 1661 -$ 256 616

11 122 42 1377 1783 298 669 12 120 29 967 1903 327 687 14 116 37 1276 2019 364 721 15 118 40 1356 2137 404 756 18 121 60 1976 2258 464 822 19 119 30 740 2377 494 831 21 125 61 1952 2502 555 887 22 118 25 847 2627 580 883 25 122 16 525 2749 596 867 26 116 15 517 2865 611 853 28 122 28 918 2987 639 856 29 117 11 376 3104 650 838

August 1 120 7 233 3224 657 815 2 119 9 303 3345 666 796 4 120 3 100 3465 669 772 5 118 5 170 3583 674 752 8 114 7 245 3697 681 734

11 123 7 337 3 82 0 688 720 15 118 2 68 3938 690 701 16 113 5 177 4051 695 686 18 98 3 122 4149 698 673 19 119 1 34 4268 699 655 22 112 0 00 4380 699 638 23 115 0 00 4495 699 622 25 120 2 66 4615 701 606 26 112 1 36 4727 702 594 29 116 0 00 4843 702 580 30 11 5 0 00 4958 702 566

Sept 1 115 0 00 5079 702 553 2 112 0 00 5191 702 541

----shy5079 702

50

-----------------------------------------------------------------

------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

June 5 73 0 00 73 0 00 7 126 0 00 199 0 00 8 127 0 00 326 0 bull 0 0

10 11 4 3 105 440 3 27 12 113 2 71 553 5 36 14 119 1 34 672 6 36 15 116 4 138 788 10 51 17 116 3 103 904 13 56 19 118 6 203 1022 19 74 21 118 0 00 1140 19 67 22 117 10 342 1257 29 92 24 116 3 103 1373 32 93 26 119 11 370 1492 43 115 28 11 8 6 203 1610 $ 49 122 29 115 13 452 1725 62 144

July 1 119 8 269 1844 70 152 3 119 17 571 1963 87 177 5 119 13 437 2082 100 192 6 12 0 17 567 2202 117 213 8 121 7 231 2323 124 214

10 11 4 18 632 2437 142 233 12 115 12 417 2552 154 241 13 116 37 1276 2668 191 286 15 117 16 547 2785 207 297 17 11 8 31 1051 290 3 238 328 19 118 18 610 3021 256 339 20 115 29 1009 3136 285 364 22 122 17 557 3258 302 371 24 115 24 835 3373 326 387 26 120 19 633 3493 345 395 27 117 11 376 3610 356 394 29 117 14 479 3727 370 397 31 116 18 621 3843 388 404

August 2 121 9 298 3964 397 401 3 122 17 557 4086 414 405 5 11 8 8 271 4204 422 402 7 128 19 594 4332 441 407 9 257 10 156 4589 451 393

10 125 14 448 4714 464 394 12 13 1 308 4727 465 393 14 107 5 187 4834 470 389 16 122 4 131 4956 474 383 17 123 15 488 5079 489 385 19 118 8 271 5197 497 383 21 112 3 107 5309 500 378 23 120 6 200 5429 506 373 24 115 7 243 5544 513 370

51

-----------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 (Continued)

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

August 26 115 5 174 5657 518 366 28 119 1 34 577 6 519 359 30 119 4 134 5895 523 355 31 117 0 00 6012 523 3 48

Sept 2 123 3 98 613 5 526 343 4 479 2 17 6614 528 319 6 238 1 17 6852 529 309 7 237 0 00 7089 529 298 8 9

238 242

1 2

17

33 7327 7569

clt

530 532

289 281

10 242 3 50 7811 535 274 11 242 0 00 8053 535 266 12 241 2 33 8294 537 259 14 227 3 53 8521 540 253 15 242 0 00 8763 540 246 16 210 1 19 8973 541 241 17 239 2 33 9212 543 236 18 230 0 00 9442 543 230 20 489 0 00 9931 543 219 21 240 2 33 10171 545 214 22 242 0 0 10413 545 209 23 234 0 00 10647 545 205

----shy

10647 545

52

------------------------------------------------------------------------

------

TABLE 6A Unalakleet River Sonar Site Drift Sets5 1 4n Me sh 19 83 bull

Date Time Result

July 19 1405-1413 1 burbot July 23 1040-1055 1 pink caracass July 27 1520-1530 1 coho August 3 1444-1501 4 coho August 22 1930-1937 0 August 23 937-943 1 coho 1 pink carcass August 26 1117-1127 1 coho 3 churn August 31 1018-1034 3 churn

TABLE 6B Unalakleet River Sonar Site Beach Seines 1983

Date Time Distance Result

July 20 1445 120 meters 4 pink 1 churn 13 Dolly Varden 1 whitefish

July 25 1500 120 meters 6 pink 1 churn 1 Dolly Varden 4 whitefish 1 grayling

July 28 1700 120 meters 4 coho 2 pink 2 churn 1 Dolly Varden

August 1 2010 300 meters 4 pink 3 churn 8 Dolly Varden

August 4 1015 130 meters 5 coho 3 pink 3 churn 65 Dolly Varden 3 whitefish 3 grayling

August 24 1110 130 meters 18 coho 2 Dolly Varden 2 grayling

August 29 1715 120 meters 11 coho 1 pink 69 churn 1 Dolly Varden 2 grayling

Seine done at mile 12 Unalakleet River

53

--------------------------------------------------------------------------------------------------

--------------------------------------------------------------------------------------------------

TABLE 7 AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER CATCH SAMPLE SPORT CATCH AND SPAWNING SURVEYS 1983

II

COMBINED 3-2 4-2 4-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 31 646 6702 5 104 5010 8 167 5688 1 21 5900

Female 17 354 8540 o o 1 21 5450 o o

Total 48 1000 7353 5 104 5010 9 188 5661 1 21 5900

~ 11)

5-2 6-2 7-2 7-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 11 229 7382 6 125 8350 0 0 0 0

Female 2 42 7925 12 250 8742 1 21 10650 1 21 8350

Total 13 271 7465 18 375 8611 1 21 10650 1 21 8350

TABLE 8A AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER TEST NET SAMPLE 1983

-----~-------------------------------------------------------------------------------------------------------

gt

COMBINED 4-2 5-2 5-3 6-2 7-2 NO LENGIH NO LENGIH NO LENGIH NO LENGTH NO LENGTH NO LENGTr

8 14 n

Male 3 333 8107 0 1 111 5800 o 0 2 222 9260 0 0 Female 6 667 8295 0 0 1 111 7600 o o 4 444 8310 1 111 8930 Total 9 10 e 0 8232 0 o 2 222 6700 o o 6 667 8627 1 111 8930

If) If)

5 14 Male 19 1000 6298 12 632 5392 4 211 6990 0 o 3 158 8997 0 0 Female o 0 o o o o o o 0 0 0 0 Total 19 1000 6298 12 632 5392 4 211 6990 o o 3 158 8997 0 0

4 n or Smaller Male 6 667 5930 1 111 4660 2 222 6325 3 333 6090 0 o 0 o Female 3 333 8970 o o o o o o 3 333 8970 0 o Total 9 1000 6943 1 111 466 2 222 6325 3 33 3 6090 3 33 3 8970 0 0

TOTAL Hale 28 757 6413 13 351 5336 7 189 6630 3 8 1 6090 5 13 5 9102 o 0 Female 9 243 852 o o 1 27 7600 o o 7 189 8593 1 2 7 8930 Total 37 1000 6925 13 351 5336 8 216 6751 3 8 1 6090 12 324 88 e 5 1 2 7 8930

---------------------------------------------------------------------------------------------------------

---------------------------------------------------------------------------------------------------------

TABLE 8B AGE SEX AND SIZE COMPOSITION OF NORTON SOUND COHO SALMON UNALAKLEET RIVER TEST NET SAMPLE 5 14 AND 5 78 GEAR 1983

COMBINED 3-2 4-3 4-4 5-4 NO LENGIH NO LENGIH NO LENGTH NO LENGIH NO LENGTH

Male 9 900 5489 0 0 9 900 5489 0 0 Female 1 10 bull 0 552 QJ QJ 0 1 10QJ 5520 0 0 Total 10 1000 5492 0 0 10 1000 5492 0 0 725-731

bull LI)Male 15 938 5645 15 938 5645 Female 1 62 575 QJ 1 62 575 QJ Total 16 lQJ0QJ 5651 16 100QJ 5651 81-87

Male 24 545 5668 23 523 5768 1 23 3350 Female 20 455 5631 20 455 5631 0 0 Total 441QJ0QJ 5651 43 977 57 QJ 4 1 23 335 QJ 88-814

Male 7 500 5797 7 500 5797 QJ 0 Female 7 500 5596 6 429 5587 1 71 5650 Total 14 1000 5696 13 929 1 71 5650570 815-821

Male 5 455 5492 5 455 5492 Female 6 545 5552 6 545 5552 Total 11 lQJ00 5525 11 100QJ 5525 822-828

Species Total Count LQf Total

Chinook 2790 09 Coho 17013 53 Pink 91881 285 Chum 58273 181 Other 152537 AL2

322494 1000

Tables 3A 3B 3C 3D and 4D present this data by 3-day sample period Based on discussions with Al Menin and Dave Gaudet about the ability of sonar counters to discriminate between various target shapes and sizes any fish two and one half pounds or laterally compressed fish ~f one pound or larger could be counted by a sonar calibrated for pink salmon Fish other than salmon considered countable by the sonar counter included arctic char grayling burbot and broad humpback and Alaska whitefish

Peak adjusted apportioned sonar counts were on June 23 for chinook August 21 for coho July 18 for pink and July 25 for chum salmon (Tables 3A 3B 3C and 3D Figures 4A 4B 4C and 4D)

Representative passage rates on the south bank by sector and by hour for July 3-5 and August 21-23 are presented in Figures 6 and 7 These periods were chosen because of minimal adjustments to raw counts north bank counts are not presented due to lack of relatively clean data for those periods

Test Fishing

A total of 19 chinook (74 male - 26 female) 294 coho (61 male 39 female) 1156 pink (52 male - 48 female) and 915 chum (54 male - 46 female) was captured from May 27 to September 23 The fish were sampled and delivered to Hartha Nanouk a local subsistence fisherman as per agreement for the use of her traditional set-net site

Based on the single most effective test net CPUE the chinook migration did not peak as such but rather showed most consistent catches on June 22 and 23 coho migration peaked from August 10-14 pinks from July 18-22 and chum on July 13

-9shy

Comparisons of daily CPUE and cumulative CPUE for all salmon species are presented in Tables SA 58 5C and 5D and Figures 8 thru 15 Of interest although not as useful for annual comparison due to different test net methods net mesh sizes fishing time etc the actual fish caught from 1981 to 1983 are

~ 1982 un 41 chinook 39 chinook 39 chinook

107 coho 310 coho 294 coho 1463 pink 5114 pink 1156 pink

722 chum 375 chum 915 chum

f

Age Sex and Size Composition of Test Net Catches

An age analysis of scales collected during the project indicated the following age compositions king salmon all gear sizes (4-2131 5-2 22~ 5-3816-23217-2 3) coho salmon 5 14 and 5 78 gear (3-2 051 4-3 981 4-4 051 5-4 l) chum salmon 5 14 and 5 78 gear (3-1 21 4-1 611 5-1 37) Tables 7 thru 9D show the age composition of the various species broken down by date and the mesh sizes used during the project

Counting Towers

As cited visual tower counts could not be made on the Unalakleet River due to river width surface disturbances turbidity etc However visual observations proved invaluable in identifying spawning behavior etc and resulted in the downstream relocation of the north bank substrate and development of the method used to adjust north bank sonar counts

Drift SetsBeach Seines

Tables 6A and 68 present the results of drift sets and beach seines respectively Drift set results indicate that the portion of the river not isonified was not used by migrating salmon ie the species most countable coho pink and chum salmon would seem to follow the banks and were counted by the side-scan sonar

Beach seines proved useful in verifying the high presence of

-10shy

species other than salmon the relative abundance of coho salmon in August and the presence of spawning churn salmon in the south bank substrate area

Riyer SurveysAerial SurVeys

On July 29th 32 miles of the North River were surveyed by a two-person crew for the purpose of counting live chinook and sampling chinook carcasses A total of 166 live chinook were counted and 3 chinook carcasses were sampled with approximately half of the chinook counted between mile 25 and mile 32

Originally the Old Woman River survey was to be a six-day trip Due to the damage the plane suffered dropping the first crew member off the second member and support gear was not av~ilable for the survey as planned~ The survey of the Old Woman River August 6-8 counted 60 king salmon but only four samples were collected Weather prevented the survey of the main river

King Salmon Spo rt Fish Survey

A sport fishing lodge on the Unalakleet River is responsible for the majority of the sport fishing effort Periodic surveying of lodge personnel indicates that a fair quantity of king salmon are harvested by sport fishing A quantitative survey was not done however due to limited time available A total of 43 chinook was sampled from sport fishing catches

DISCUSSION

River levels were lower than normal during the spring of 1983 due to the lack of snow accumulation the previous winter The Unalakleet River cleared early and became quite low during late June and early July The low water allowed the counting towers at the sonar site to be used during calm survey days which wasnt possible during 1982

Tower observations made as early as June 28 showed serious milling problems at the north bank sonar site The sonar was moved to a new site on July 2 Milling fish were still a considerable problem at the new site but about half the hourly count were considered acceptable during mid-July Milling salmon were a problem through most of the field season Milling salmon of all four species were observed

-11shy

during the latter half of each respective migration Pink salmon presented the worst problem and churn the least Unfortunately milling pinks invalidated the churn count since the two runs overlap Coho salmon exhibited some milling but an accurate evaluation of this problem was hampered by turbid water Milling coho became a problem after August 20

The milling observed from the towers was not apparent to the observer at the oscilloscope because of the overwhelming number of spikes present at that stage of the salmon migration During 1982 when tower observations were not possible the oscilloscope appeared to have an extraordinary number of spikes The large pink salmon count recorded in 1982 may have been an artifact of milling behavior that was unobservable then Commercial catch and test net catch statistics indicate a large pink salmon run f However it is likely fish milling over the substrate exaggerated the sonar count although without tower observations it can not be proven

Another problem observed during the 1983 field season was avoidance of the substrate by all fish species This problem was at its worst when water was low and clear Angling the substrate slightly downstream as it was after July 15 helped considerably By extending the sonar beam periodically it was determined that as visibility decreased so did avoidance

Species apportionment of the sonar count was done using test net catches Some of the problems encountered with the sampling scheme should be pointed out Test nets were assumed to sample the same portion of the river as the sonar Since three net lengths were used this seemed suspect Different species migrate at different depths The non-salmon species tend to migrate in shallow water near shore and generally the larger species migrate in deeper water nearer mid-stream Since only a IS-fathom net of the most efficient type for non-salmon species was fished in the preferred habitat for these fish it is likely that the calculated efficiency was too high The other test nets were longer and also sampled some preferred areas for the targeted species

The opposite case is true for king salmon The 8 14 net is 20 fathoms longS fathoms shorter than the other nets used on this project This net does not cover all of the area preferred by king salmon This means king salmon

-12shy

escapement is probably underestimated but the 20 fathom net samples an area further out than the sonar counter even with its beam extended So the number of king salmon counted by the sonar is over estimated King salmon make up such a small percentage of the total salmon run that counting errors are more significant than this apportionment error

Very few churn and pink salmon were caught in the offshore end of the nets It is assumed these long nets had very little effect on the sonar count species apportionment

CONCLUSION

The feasibility of counting salmon in the Unalakleet River using side-scanning sonar is unlikely due to milling fish and the inal1ility to accurately apportion the sonar count to the various fish species It is possible that a partial escapement count could be made further up river above one or more of the major tributaries to the system The new north bank sonar site that showed some improvement over the former site had two differences that seemed to affect salmon migration The current was faster over the substrate at the second site and the river gravels were less ideal spawning habitat The new site was located below a rock bluff on the outside of a river bend

There are two similar sites up river about ten miles where the current is faster and the bottom is even less conducive to spawning During the 1984 field season a comparison of the smoother running south bank site and these up-river sites could be made The best time to do this would be during August when only coho salmon are migrating The counter should be operating by August 15 prior to milling activity and maintained for a week to evaluate if milling salmon became apparent later after the migration peaked The south bank site could be used as a control for comparison to 1983

-13shy

I I

5 1 2

Miles No tt h _

shy

R Iv er

Figure 1 Unalakleet Escapement Project

lt

Son sr

Fig u r e 2 S 0 0 a r Sit eSc hem a tic

ITower

Original Ninth Bank Sonar

Drift sets 5 minutes

Lf)

So t h Ban k Son a

lTower

o Work Tent

B Living Quarters

Figure 3Unalakleet Subsistence Survey 1983

Kin g- S a I m 0 n

1bull

10

9

c 8aI

-lE 11 t a til 7 ~ II 6 ~ U

5 til

0

c 4 til til

E 3 I

1 V

~ 2

1

27 1 5 10 15 20 25 30

~ June

Figure 4A Specie apportionment king salmon Un-alakleet sonar 1983

~

25

-l20

c 1 5 III () III

11

10

5

I

J

27 31 5 10 15 20 25 30 5 10 15 20 25 31

June Ju Iy

Figure 4B Specie middotapp~~tionment coho salmon Unalakleet sonar 1983

30

25

co ~

20

1 t~

C $

u 1 5 CD a

10

5

5 10 15 20 25 31 5 10 15 20 25 31 5

Ju August Sept e

Figure 4C Specie apportionment pink salmon Unalakleet sonar 1983

1 6

1 5

14

1 3

12

1 1

c II U CII

Ashy

10

9

a

7

01 ~

6

5

4

3

2

1

1 5 10 1 5

June

2 O 25 30 5 10 15 20

Ju Iy

25 31 5 10 15 20

August

25 31 5 10

Septem

Figure 40 Species apportionment chum salmon Unalakleet sonar 1983

16

1 5

1 4

13

1 2

1 1

10

9 c 8GI U

GI middot7 A

6

5

4

3

2

1

~

o N

~

1 5 10 15 20 25 30 5 10 15 20 25 3 1 5 10 15 20 25 31 5 10

June Ju Iy August Sept e

Figure 5 Specie apportionment Unalakleet sonar 1983

50

4

40

35

c J 30 0 U

~ 0 25 0 c Q)

u ~

Q) 20a

15

10

5

o L-_lt---__

King Coho Pink Chum Misc

21

----

Figure 6 Sector distribution of counts Unalakleet sonar1983

35

30

25

c 20 G)

() G) 15

0

10

5

35

30

25 c G)

() 20

G)

0 15

10

5

( s ()u t h ban k )

July 3-5

~-2 4 6 8 1 0 1 2 1 4 1 6shy

Sector

August 21-23

2 4 6 8 10 12 14 16

Sector

22

Figure 7 Hourly distribution of counts Unalakleet sonar 1983

(south bank)

14

12

10

c 8 GI U ~

6

July 3-5

~GI

I =~ Q

4

2 0

2 4 6 8 10 12 14 1 6 18 20 22 24

TIme

9

8

7

6

5 c GI U ~ 4 GI

Q

3

2

August 21-23

1

0

2 4 6 8 10 12 14

TIme

16

23

18 20 22 24

Figure 8 Unalakleet River Test Fishing Daily King CPUE in 8 14 mesh 1983

10

9 N

8 shy

7 I 0 c 6E

n

l J I I

0 0 5 c (J 4 co 0

3

2

1

I I

27 1 5 10 15 20 25 1 5 10 15 20 25 31

~ June July

Figure 9 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1983bull

~

middot10

09 U N

I 08 0 c 07E I ()

- 06 E-0 0 05 shy~ () 04 ca - ()

03E I 0 02

01

27 1 5 10 15 2Q 25 1 5 10 15 20 25 31

June July

Figure 10 Unalakleet River Test Fishing Daily Coho CPUE in 5 78 mesh 1983

1

6

5

I 0

NI II I 0 t

E 4

0 0 c 3() cu 0

2

1

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sept U

Figure 11 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1983

200

175

150

I 0 c 125E I ()

E

r-shy-0 I I N 0 100 c ()-as ()

75E I 0

50

25

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sel ber

20

Figure 12 Unalakleet River Test Fishing Daily Pink CPUE in 4 mesh 1983

18

I

0) N

II

16

I ishy

14 J 0 t 12shyE 0 10 0 shys 8 () as

0 6 1 I V 4

2

~ I

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

--

Figure 13 Unalakleet River Test Fishing Cumulat ive Pink CPUE in 4 mesh 1983

10

9 01 N 8

J 0 J 7 E J 0 6 E- 50 ~

amp 4() ca

0 3 E J

0 2

1

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

Figure 14 Unalakleet River Test Fishing Daily CPUE in 5 14 amp 5 78 mesh 1983

14

13shy

12

11

10

9 J 0 8

I z shy-E 7 0 0 shys ~u aI 0

4 I

31

2

1

II

0 C1)I 11

I I I II

bull y AA(net changed to 5 78

AA A 11 I

~ I~ V ~

- I

VI

1 5 10 15 20- 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

cJune July August

Figure 15 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 14 amp 5 78 mesh 1983

It

5

--l C)

net changed to 5 78

~ 4 o

c E (J ~

3E o o c 2 u ~ -(J

E ~ (J 1

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 16 Unalakleet River Test Fishing Catch Proportions 1983

60

55

---- King50

__ Coho 45

P--Q Pink

40 __ Chum

I LU 35J D I 0

30 ICQ 0 25 I

N Cl0 20

c G)

15u G)

D

10

5 A 1 I

I 4 I

I I

3 lt

~

2

I I1 - I bull I

I ~ ~ ~ t -J ~~ - _

r

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 17 Unalakleet Area Temperatures 1983

18

16

14

12

til 10I

u-G) 80 CI) G) G) 6 C) G)

Q 4

2

C) C)

__ Air

0--0 River 2

0

-2

-4

---------~ ~

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August 5e

4

Figure 18 Unalakleet River Turbidity and Depth 1983

__ Secchi Reading

-t ()

II) G)-G)

3

iE 2

1

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August

~ 1 _ ~ r--- I shy I __ I 01 --shy

Figure 19 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1981-83

27 31 5

May

_1981

____ 1982

o 0 1983 11) C)

Changed to 5 78 mesh

I

t

~-~o-~ Q-O--Oolt)-(IQ-----l

--1

_10 15 20 25 30 5 10 15 20 25 31

June July

I I I

~

0 ~

r E ~

CJ shyE 0 0 I

shyr u-cu CJ

E ~

CJ

4

35

30

25

20

15

10

05

Figure 20 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 78 mesh 1981-83

5

4 lI 0

z

E lI 0 3 E-0 0 2 r CJ-cu 0

E lI 1 0

__1981 ~~

~ ___1982

a 01983 5 148 mesh from 65-810

_----shy-- 0 - -- C1) A - _ - ~

~ I

I

II I I I I I

I I

1

~ -

-

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 21 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 mesh- 1981-83

8

70

60

50

40 0

r 30E

0 20E-0 0 10 s= u 8 tV 0 6E 0 4

2

__1981 ____ 1982

_1983

shy--- -- shy--- shy J - -

I

I

C1- J

I

-----l---l ~--~r---------------r--

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 22 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1981-83

_1981

~ __ 1982

~1983

25

00I _ __ _ _ C)~ I __ _ I

I V o 20 rt I I

E I AshyI o E 15-o o z u 10 tU o E I o 5

I

1 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

July August 5

----------------------------------------------------------------

Table 1 Unalakleet River Subsistence King Salmon Index 1983

Number of Number of Date Fishermen Chinook Average

08 02 18 05 05 00 02 58 92 62 72 72 42 28 52 60 62 20 47 50 35 25 15

June 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Totals

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 4 4 4

4

3 1 7 2 2 o 1

23 37 25 29 29 17 11 21 24 25

6 14 15 14 H~

6

322

~

39

---------------------- ---------- --------------------------------------

----------------------------------------------------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983

Daily Proportion Cumu1 Prop Date South North Total of Total Cumulative of Total

64 7 23 30 1313131 313 013131 65 44 187 231 00137 261 01308 66 12 162 174 01305 435 01313 67 8 283 291 1313139 726 01322 68 0000 726 13022 69 3 221 224 013137 950 13029 610 26 245 271 131308 1221 13037 611 56 254 310 131310 1531 131347 612 44 736 780 013 24 2311 13071 613 64 1188 1252 01339 3563 01113 614 59 1752 1811 0056 5374 0166 615 97 844 941 01329 6315 0195 616 165 729 894 0028 7209 0223 617 151 i 604 1755 0054 8964 middot 0277 618 i ll 1524 1635 0051 10599 13328 619 175 2000 2175 0067 12774 13395 620 171 21320 2191 0068 14965 0463 621 220 1613 1833 0057 16798 0520 622 199 2065 2264 0070 19062 0590 623 362 21334 2396 0074 21458 13664 624 876 3403 4279 13133 25737 0797 625 1244 2023 3267- 0101 29004 0898 626 738 1601 2339 0073 31343 0971 627 573 3265 3838 0119 35181 1090 628 547 1868 2415 0075 37596 1165 629 528 4028 4556 0141 42152 1306 630 430 430 0013 42582 1319 71 240 240 01307 42822 1326 72 201 975 1176 0036 43998 1362 73 309 8842 9151 0284 53149 1646 74 475 6385 6860 0213 60009 1859 75 565 3342 3907 0121 63916 1980 76 1377 2094 3471 0108 67387 2088 77 1416 3173 4589 0142 71976 2230 78 1472 1420 2892 0090 74868 2320 79 2071 1452 3523 01113 78391 2430 710 3318 2434 5752 0178 84143 2608 711 2673 2866 5539 13172 89682 2780 712 1665 1747 3412 13106 93094 2886 713 21317 1951 3968 13123 97062 3009 714 2991 2664 5655 0175 102717 3184 715 2646 2548 5194 13161 107911 3345 716 2488 2886 5374 0167 113285 3512 717 1585 4063 5648 0175 118933 3687 718 3559 9326 12885 0400 131818 4087 719 2948 2398 5346 13166 137164 4253 720 1640 3330 4970 0154 142134 4407 721 2416 6420 8836 0274 150970 4681 722 3298 3298 0102 154268 4783 723 5007 5007 0155 159275 4938

40

--------------------------------------------------------------------

--------------------------------------------------------------------

-----------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983 (Continued)

Daily Proportion Cum Prop Date South North Total of Total Cumu1at i ve of Total

724 4005 7804 11809 0366 171084 5304 725 2453 3392 5845 0181 176929 5485 726 2166 12094 14260 0442 191189 5927 727 1914 4472 6386 0198 197575 6125 728 1603 3463 5066 0157 202641 6282 729 1251 1914 3165 0098 205806 6380 730 1710 2495 4205 en30 210011 6510 731 2542 1887 4429 0137 214440 6647 81 4479 2271 6750 0209 221190 6856 82 1103 1806 2909 0091 224099 6947 83 1719 942 2661 0083 226760 bull 7030 84 1519 2557 4076 0126 230836 7156 85 1259 1113 2372 0074 233208 7230 86 940 2189 3129 0097 236337 7327 87 1467 4354 5821 0180 242158 7507 88 2318 1584 3902 0121 246060 7628 89 2098 1505 3603 0112 249663 7740 810 2629 1517 4146 bull 0129 253809 7869 811 3753 1091 4844 0150 258653 8019 812 1489 523 2012 0062 260665 8081 813 744 353 1097 0034 261762 8386 814 981 981 bull 0030 262743 8145 815 2324 2324 0072 265067 8217 816 2638 2638 0082 267705 8299 817 2073 731 2804 0087 270509 8115 818 2244 675 2919 0091 273428 8477 819 3240 696 3936 0122 277364 8599 820 2363 503 2866 0089 280230 8688 821 6789 1111 7900 0245 288130 8933 822 6489 563 7052 0219 295182 9152 823 5077 298 5375 0167 300557 9319 824 2616 298 2914 0090 303471 9409 825 3933 412 4345 0135 307816 9544 826 1393 554 1947 0060 309763 9604 827 1203 463 1666 0052 311429 9656 828 1197 542 1739 0054 313168 9710 829 1244 221 1465 0045 314633 9755 830 1011 199 1210 0038 315843 9793 831 718 214 932 0029 316775 9822 91 1324 318 1642 0052 318417 9874 92 1362 307 1669 0052 320086 9926 93 1146 314 1460 0045 321546 9971 94 652 296 948 bull 0029 322494 10000

148465 174029 322494 10000

41

----------------------------------------------------------------------

-------------------------------------------------------------------- --

------

TABLE 3A Unalakleet River Species Apportionment by Test Period King Salmon 1983

3-Day App Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 76 0272 76 0272

69-612N 28 0100 104 0372

612N-615 461 1652 565 2024

616-619N 419 1502 984 3526

619N-622 170 0609 1154 4135

623-626N 722 2588 1876 6723

626N-629 264 0946 2140 7669

630-73N 103 0639 2243 8038

73N-76 188 0674 2431 8712

77-710N 0 0000 2431 8712

710N-713 0 0000 2431 8712

714-717N 267 0957 2698 9969

717N-720 0 0000 2698 9669

721-724N 92 0331 2790 1 0000

724N-727 0 0000 2790 10000

728-731N 0 0000 2790 1 0000

731N-83 0 0000 2790 1 0000

2790 10000

42

Dates

714-717N

717N-720

721-724N

724N-727

728-731N

731N-83

84-87N

87N-810

811-814N

814N-817

818-821N

821N-824

825-828N

828N-831

91-94

TABLE 3B Unalakleet River Species Apportionment by Test Period Coho Salmon

3-Day Count

583

338

436

550

2650

1174

793

1435

5074

1280

435

2265

171H3

1983

Proportion of Season Total

0000

0000

0000

0343

0199

0256

0323

1558

0690

0466

0843

2983

0752

0256

1331

Cumulative Count

583

921

1357

1907

4557

5731

6524

7959

13033

14313

14748

17013

Cumulative Proportion

0000

0000

0000

0343

0542

0798

1121

2679

3369

3835

4678

7661

8413

8669

10000

43

------------------------------------------------------------------

------------------------------------------------------------------

----- ------

TABLE 3C Unalakleet River Species Apportionment by Test Period Pink Salmon 1983

3-Day P roport ion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 0 0000

6l2N-615 0 0000

616-6l9N 97 0012

6l9N-622 332 0036

623-626N 1245 0136

626N-629 6624 0721

630-73N 3699 0403

73N-76 10762 1171

77-7l0N 7704 0838

710N-7l3 8529 0928

714-717N 9771 1063

717N-720 13845 1507

721-724N 11361 1236

724N-727 6544 0712

728-731N 3545 0386

731N-83 1628 0177

84-87N 1224 0133

87N-810 1777 0193

811-814N 802 0087

814N-817 561 0061

818-821N 533 0058

821N-824 8313 13091

825-828N 468 0051

828N-831 0 0000

91-94 0 0000

91881 10000

0 0000

0 0000

0 0000

97 0012

429 0048

1674 0184

8298 0905

11997 1308

22759 2479

30463 3317

38992 4245

48763 5308

62608 6815

73969 8051

80513 8763

84058 9149

85686 9326

86910 9459

88687 9652

89489 9739

90050 9800

90583 9858

91413 9949

91881 10000

91881 10000

91881 1 0000 44

------------------------------------------------------------------

------------ ------------------------------------------------------

----- ------

TABLE 3D Unalakleet River Species Apportionment by Test Period Chum Salmon 1983

3-Day Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 100 0017

612N-615 268 0046

616-619N 838 0144

619N-622 1180 0202

623-626N 2744 0471

626N-629 1569 0270

630-73N 796 0137

73N-76 2972 0510

77-710N 2068 0355

710N-713 2622 0450

714-717N 4133 0710

717N-720 5596 0960

721-724N 4978 0854

724N-727 8974 1540

728-731N 2241 0385

731N-83 2079 ~0357

84-87N 3009 0516

87N-810 2432 0417

811-814N 937 0161

814N-817 454 0078

818-821N 2584 0443

821N-824 2739 0470

825-828N 1783 0306

828N-831 765 0131

91-94 412 0070

58273 10000 45

0 0000

100 0017

368 0063

1206 0207

2386 0409

5130 0880

6699 1150

7495 1287 f

10467 1797

12535 2152

15157 2602

19290 3312

24886 4272

29864 5216

38838 6666

41079 7051

43158 7408

46167 7924

48559 8341

49536 8502

49990 8580

52574 9023

55313 9493

57096 9799

57861 9930

58273 1 0000

-------------------------------------------------------------

------------------------- ------------------------------------

TABLE 4 Unalakleet River Test Net Proportions by Sample Perio-d 1983 ( Selective CPUE)

Dates Chinook Coho Pink Chum Misc

64-68 105 00 00 895

69-612N 24 00 83 893

612N-615 1C~ 5 00 61 834

616-619N 78 18 156 748

619N-622 23 45 160 772

623-626N 65 112 247 576

626N-629 22 553 131 294

630-73N 16 576 124 284

73N-76 10 572 158 260

77-710N 00 555 149 296

710N-713 00 540 166 294

714-717N 14 00 513 217 256

717N-720 00 00 532 215 253

721-724N 04 00 493 216 287

724N-727 00 18 202 277 503

728-731N 00 23 242 153 582

731N-83 00 30 112 143 715

84-87N 44 98 241 617

87N-810 182 122 167 529

811-814N 139 95 111 655

814N-B17 96 68 55 7B1

B18-B21N 105 39 1B9 667

821N-824 263 43 142 552

825-B28N 145 53 202 600

828N-831 97 00 171 732

91-94 396 00 72 532

46

--------

--------

TABLE 4 Una1ak1et River Test Net Proportions 1983 ( Selective CPUE) (Continued)

Comparative Apportionment

Species Apportionment

Chinook 2790 Coho 17013 Pink 91881 Churn 58273

------shySubtotal 169957

Misc Species 152537 ------shy

Total 322494

Substrate Comparison -------------------shy

Bank Counts -----shy

South 148465 North 174029

------shy

Total 322494

Percent of Total Counts

09 53

285 181

5408

472

1000

Percent

460 540

1000

47

-------------------------------------------------------------------

TABLE 5A Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

May 27 28

21 5 482

13 13

1313

1313 21 5 697

13 13

1313

1313 30 240 0 013 937 0 00 31 246 2 41 1183 2 08

June 1 237 0 00 1420 2 07 2 3

256 585

13 13

013 bull 13 13

1676 2 261

2 2

6bull 13 4

5 6 8

160 120 middot 125

13 1

13 42 130

2 421 2541 2666

~ 2 3 3

bull 13 4 136 136

9 122 0 130 2788 3 05 11 117 00 2905 3 05 12 126 13 00 3031 3 05 13 117 1 43 3148 4 06 15 118 0 013 3266 4 136 16 116 1 43 3382 5 138 18 240 13 130 3622 5 07 19 121 0 00 3743 5 07 20 116 0 00 3859 5 136 22 118 1 42 3977 6 138 23 119 1 42 4196 7 08 25 240 0 013 4336 7 138 26 119 13 1313 4455 7 138 27 119 13 1313 4574 7 138 29 1213 13 130 4694 7 137 313 1213 13 00 4814 7 07

July 2 238 0 1313 51352 7 07 3 118 13 013 51713 7 07 4 118 1 42 5288 8 138 6 122 0 00 5410 8 07 7 116 13 00 5526 8 07

10 126 0 1313 5652 8 07 11 119 0 013 5771 8 07 13 116 13 130 5887 8 07 14 119 2 84 6006 10 07 17 122 0 00 6128 10 07 18 112 0 1313 6240 10 136 20 119 13 00 6359 10 06 21 112 0 013 6471 10 06

6471 10

48

------------------------------------------------------------------

------------------------------------------------------------------

TABLE 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983

Cum Cum Date Hours Catch CPUE Hours Catch CPUE

July 24 26

115 120 0 00

115 235

0 0

00

00 27 117 4 00 352 0 00 29 117 0 137 469 4 34 31 116 3 103 585 7 48

August 2 122 0 00 706 7 40 3 122 2 66 828 9 43 5 118 1 34 946 10 42 7 128 14 437 1074 24 89 9 257 14 218 1331 38 114

10 125 21 672 1456 59 162 12 13 middot- 0 00 1469 x 59 161 14 10 7 12 449 1576 71 180 16 122 2 66 1698 73 172 17 123 6 196 1821 79 174 19 118 1 34 1939 80 165 21 112 6 214 2051 86 168 23 120 3 100 217 1 89 164 24 115 2 70 2286 91 159 26 115 5 174 2401 96 160 28 119 0 00 2520 96 152 30 119 4 1 34 2639 100 152 31 117 1 34 2756 101 147

Sept 2 123 5 33 2879 106 147 4 479 15 125 3358 121 144 6 238 11 185 3596 132 147 7 237 5 84 3833 137 143 8 238 6 1 01 4071 143 141 9 242 10 1 65 4313 153 142

10 242 3 50 4555 156 137 11 242 2 33 4797 158 132 12 241 8 133 5038 166 132 14 227 14 247 5265 180 137 15 242 9 149 5507 189 137 16 210 3 57 5717 192 134 17 239 2 33 5956 194 130 18 230 2 35 6186 196 127 20 489 4 33 6675 200 120 21 24 3 50 6915 203 117 22 242 0 00 7157 203 113 23 234 1 17 7391 204 110

----shy

7391 204

Mesh size = 5 14 from 724 to 810

49

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TABLE 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE ------~-----------------------------------------------------------June 16 122 1 33 122 1 33

17 118 0 bull 0 0 240 1 17 20 120 2 67 360 3 33 21 118 0 00 478 3 25 23 119 2 67 597 5 34 24 119 3 102 716 8 45 27 116 19 655 832 27 130 28 120 22 733 952 49 206 30 120 40 1333 1072 89 332

July 1 115 36 1252 1187 125 421 4 122 30 983 1309 155 474 5 114 47 1649 1423 202 568 7 118 30 1016 1541 232 602 8 120 shy 24 800 1661 -$ 256 616

11 122 42 1377 1783 298 669 12 120 29 967 1903 327 687 14 116 37 1276 2019 364 721 15 118 40 1356 2137 404 756 18 121 60 1976 2258 464 822 19 119 30 740 2377 494 831 21 125 61 1952 2502 555 887 22 118 25 847 2627 580 883 25 122 16 525 2749 596 867 26 116 15 517 2865 611 853 28 122 28 918 2987 639 856 29 117 11 376 3104 650 838

August 1 120 7 233 3224 657 815 2 119 9 303 3345 666 796 4 120 3 100 3465 669 772 5 118 5 170 3583 674 752 8 114 7 245 3697 681 734

11 123 7 337 3 82 0 688 720 15 118 2 68 3938 690 701 16 113 5 177 4051 695 686 18 98 3 122 4149 698 673 19 119 1 34 4268 699 655 22 112 0 00 4380 699 638 23 115 0 00 4495 699 622 25 120 2 66 4615 701 606 26 112 1 36 4727 702 594 29 116 0 00 4843 702 580 30 11 5 0 00 4958 702 566

Sept 1 115 0 00 5079 702 553 2 112 0 00 5191 702 541

----shy5079 702

50

-----------------------------------------------------------------

------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

June 5 73 0 00 73 0 00 7 126 0 00 199 0 00 8 127 0 00 326 0 bull 0 0

10 11 4 3 105 440 3 27 12 113 2 71 553 5 36 14 119 1 34 672 6 36 15 116 4 138 788 10 51 17 116 3 103 904 13 56 19 118 6 203 1022 19 74 21 118 0 00 1140 19 67 22 117 10 342 1257 29 92 24 116 3 103 1373 32 93 26 119 11 370 1492 43 115 28 11 8 6 203 1610 $ 49 122 29 115 13 452 1725 62 144

July 1 119 8 269 1844 70 152 3 119 17 571 1963 87 177 5 119 13 437 2082 100 192 6 12 0 17 567 2202 117 213 8 121 7 231 2323 124 214

10 11 4 18 632 2437 142 233 12 115 12 417 2552 154 241 13 116 37 1276 2668 191 286 15 117 16 547 2785 207 297 17 11 8 31 1051 290 3 238 328 19 118 18 610 3021 256 339 20 115 29 1009 3136 285 364 22 122 17 557 3258 302 371 24 115 24 835 3373 326 387 26 120 19 633 3493 345 395 27 117 11 376 3610 356 394 29 117 14 479 3727 370 397 31 116 18 621 3843 388 404

August 2 121 9 298 3964 397 401 3 122 17 557 4086 414 405 5 11 8 8 271 4204 422 402 7 128 19 594 4332 441 407 9 257 10 156 4589 451 393

10 125 14 448 4714 464 394 12 13 1 308 4727 465 393 14 107 5 187 4834 470 389 16 122 4 131 4956 474 383 17 123 15 488 5079 489 385 19 118 8 271 5197 497 383 21 112 3 107 5309 500 378 23 120 6 200 5429 506 373 24 115 7 243 5544 513 370

51

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TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 (Continued)

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

August 26 115 5 174 5657 518 366 28 119 1 34 577 6 519 359 30 119 4 134 5895 523 355 31 117 0 00 6012 523 3 48

Sept 2 123 3 98 613 5 526 343 4 479 2 17 6614 528 319 6 238 1 17 6852 529 309 7 237 0 00 7089 529 298 8 9

238 242

1 2

17

33 7327 7569

clt

530 532

289 281

10 242 3 50 7811 535 274 11 242 0 00 8053 535 266 12 241 2 33 8294 537 259 14 227 3 53 8521 540 253 15 242 0 00 8763 540 246 16 210 1 19 8973 541 241 17 239 2 33 9212 543 236 18 230 0 00 9442 543 230 20 489 0 00 9931 543 219 21 240 2 33 10171 545 214 22 242 0 0 10413 545 209 23 234 0 00 10647 545 205

----shy

10647 545

52

------------------------------------------------------------------------

------

TABLE 6A Unalakleet River Sonar Site Drift Sets5 1 4n Me sh 19 83 bull

Date Time Result

July 19 1405-1413 1 burbot July 23 1040-1055 1 pink caracass July 27 1520-1530 1 coho August 3 1444-1501 4 coho August 22 1930-1937 0 August 23 937-943 1 coho 1 pink carcass August 26 1117-1127 1 coho 3 churn August 31 1018-1034 3 churn

TABLE 6B Unalakleet River Sonar Site Beach Seines 1983

Date Time Distance Result

July 20 1445 120 meters 4 pink 1 churn 13 Dolly Varden 1 whitefish

July 25 1500 120 meters 6 pink 1 churn 1 Dolly Varden 4 whitefish 1 grayling

July 28 1700 120 meters 4 coho 2 pink 2 churn 1 Dolly Varden

August 1 2010 300 meters 4 pink 3 churn 8 Dolly Varden

August 4 1015 130 meters 5 coho 3 pink 3 churn 65 Dolly Varden 3 whitefish 3 grayling

August 24 1110 130 meters 18 coho 2 Dolly Varden 2 grayling

August 29 1715 120 meters 11 coho 1 pink 69 churn 1 Dolly Varden 2 grayling

Seine done at mile 12 Unalakleet River

53

--------------------------------------------------------------------------------------------------

--------------------------------------------------------------------------------------------------

TABLE 7 AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER CATCH SAMPLE SPORT CATCH AND SPAWNING SURVEYS 1983

II

COMBINED 3-2 4-2 4-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 31 646 6702 5 104 5010 8 167 5688 1 21 5900

Female 17 354 8540 o o 1 21 5450 o o

Total 48 1000 7353 5 104 5010 9 188 5661 1 21 5900

~ 11)

5-2 6-2 7-2 7-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 11 229 7382 6 125 8350 0 0 0 0

Female 2 42 7925 12 250 8742 1 21 10650 1 21 8350

Total 13 271 7465 18 375 8611 1 21 10650 1 21 8350

TABLE 8A AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER TEST NET SAMPLE 1983

-----~-------------------------------------------------------------------------------------------------------

gt

COMBINED 4-2 5-2 5-3 6-2 7-2 NO LENGIH NO LENGIH NO LENGIH NO LENGTH NO LENGTH NO LENGTr

8 14 n

Male 3 333 8107 0 1 111 5800 o 0 2 222 9260 0 0 Female 6 667 8295 0 0 1 111 7600 o o 4 444 8310 1 111 8930 Total 9 10 e 0 8232 0 o 2 222 6700 o o 6 667 8627 1 111 8930

If) If)

5 14 Male 19 1000 6298 12 632 5392 4 211 6990 0 o 3 158 8997 0 0 Female o 0 o o o o o o 0 0 0 0 Total 19 1000 6298 12 632 5392 4 211 6990 o o 3 158 8997 0 0

4 n or Smaller Male 6 667 5930 1 111 4660 2 222 6325 3 333 6090 0 o 0 o Female 3 333 8970 o o o o o o 3 333 8970 0 o Total 9 1000 6943 1 111 466 2 222 6325 3 33 3 6090 3 33 3 8970 0 0

TOTAL Hale 28 757 6413 13 351 5336 7 189 6630 3 8 1 6090 5 13 5 9102 o 0 Female 9 243 852 o o 1 27 7600 o o 7 189 8593 1 2 7 8930 Total 37 1000 6925 13 351 5336 8 216 6751 3 8 1 6090 12 324 88 e 5 1 2 7 8930

---------------------------------------------------------------------------------------------------------

---------------------------------------------------------------------------------------------------------

TABLE 8B AGE SEX AND SIZE COMPOSITION OF NORTON SOUND COHO SALMON UNALAKLEET RIVER TEST NET SAMPLE 5 14 AND 5 78 GEAR 1983

COMBINED 3-2 4-3 4-4 5-4 NO LENGIH NO LENGIH NO LENGTH NO LENGIH NO LENGTH

Male 9 900 5489 0 0 9 900 5489 0 0 Female 1 10 bull 0 552 QJ QJ 0 1 10QJ 5520 0 0 Total 10 1000 5492 0 0 10 1000 5492 0 0 725-731

bull LI)Male 15 938 5645 15 938 5645 Female 1 62 575 QJ 1 62 575 QJ Total 16 lQJ0QJ 5651 16 100QJ 5651 81-87

Male 24 545 5668 23 523 5768 1 23 3350 Female 20 455 5631 20 455 5631 0 0 Total 441QJ0QJ 5651 43 977 57 QJ 4 1 23 335 QJ 88-814

Male 7 500 5797 7 500 5797 QJ 0 Female 7 500 5596 6 429 5587 1 71 5650 Total 14 1000 5696 13 929 1 71 5650570 815-821

Male 5 455 5492 5 455 5492 Female 6 545 5552 6 545 5552 Total 11 lQJ00 5525 11 100QJ 5525 822-828

Comparisons of daily CPUE and cumulative CPUE for all salmon species are presented in Tables SA 58 5C and 5D and Figures 8 thru 15 Of interest although not as useful for annual comparison due to different test net methods net mesh sizes fishing time etc the actual fish caught from 1981 to 1983 are

~ 1982 un 41 chinook 39 chinook 39 chinook

107 coho 310 coho 294 coho 1463 pink 5114 pink 1156 pink

722 chum 375 chum 915 chum

f

Age Sex and Size Composition of Test Net Catches

An age analysis of scales collected during the project indicated the following age compositions king salmon all gear sizes (4-2131 5-2 22~ 5-3816-23217-2 3) coho salmon 5 14 and 5 78 gear (3-2 051 4-3 981 4-4 051 5-4 l) chum salmon 5 14 and 5 78 gear (3-1 21 4-1 611 5-1 37) Tables 7 thru 9D show the age composition of the various species broken down by date and the mesh sizes used during the project

Counting Towers

As cited visual tower counts could not be made on the Unalakleet River due to river width surface disturbances turbidity etc However visual observations proved invaluable in identifying spawning behavior etc and resulted in the downstream relocation of the north bank substrate and development of the method used to adjust north bank sonar counts

Drift SetsBeach Seines

Tables 6A and 68 present the results of drift sets and beach seines respectively Drift set results indicate that the portion of the river not isonified was not used by migrating salmon ie the species most countable coho pink and chum salmon would seem to follow the banks and were counted by the side-scan sonar

Beach seines proved useful in verifying the high presence of

-10shy

species other than salmon the relative abundance of coho salmon in August and the presence of spawning churn salmon in the south bank substrate area

Riyer SurveysAerial SurVeys

On July 29th 32 miles of the North River were surveyed by a two-person crew for the purpose of counting live chinook and sampling chinook carcasses A total of 166 live chinook were counted and 3 chinook carcasses were sampled with approximately half of the chinook counted between mile 25 and mile 32

Originally the Old Woman River survey was to be a six-day trip Due to the damage the plane suffered dropping the first crew member off the second member and support gear was not av~ilable for the survey as planned~ The survey of the Old Woman River August 6-8 counted 60 king salmon but only four samples were collected Weather prevented the survey of the main river

King Salmon Spo rt Fish Survey

A sport fishing lodge on the Unalakleet River is responsible for the majority of the sport fishing effort Periodic surveying of lodge personnel indicates that a fair quantity of king salmon are harvested by sport fishing A quantitative survey was not done however due to limited time available A total of 43 chinook was sampled from sport fishing catches

DISCUSSION

River levels were lower than normal during the spring of 1983 due to the lack of snow accumulation the previous winter The Unalakleet River cleared early and became quite low during late June and early July The low water allowed the counting towers at the sonar site to be used during calm survey days which wasnt possible during 1982

Tower observations made as early as June 28 showed serious milling problems at the north bank sonar site The sonar was moved to a new site on July 2 Milling fish were still a considerable problem at the new site but about half the hourly count were considered acceptable during mid-July Milling salmon were a problem through most of the field season Milling salmon of all four species were observed

-11shy

during the latter half of each respective migration Pink salmon presented the worst problem and churn the least Unfortunately milling pinks invalidated the churn count since the two runs overlap Coho salmon exhibited some milling but an accurate evaluation of this problem was hampered by turbid water Milling coho became a problem after August 20

The milling observed from the towers was not apparent to the observer at the oscilloscope because of the overwhelming number of spikes present at that stage of the salmon migration During 1982 when tower observations were not possible the oscilloscope appeared to have an extraordinary number of spikes The large pink salmon count recorded in 1982 may have been an artifact of milling behavior that was unobservable then Commercial catch and test net catch statistics indicate a large pink salmon run f However it is likely fish milling over the substrate exaggerated the sonar count although without tower observations it can not be proven

Another problem observed during the 1983 field season was avoidance of the substrate by all fish species This problem was at its worst when water was low and clear Angling the substrate slightly downstream as it was after July 15 helped considerably By extending the sonar beam periodically it was determined that as visibility decreased so did avoidance

Species apportionment of the sonar count was done using test net catches Some of the problems encountered with the sampling scheme should be pointed out Test nets were assumed to sample the same portion of the river as the sonar Since three net lengths were used this seemed suspect Different species migrate at different depths The non-salmon species tend to migrate in shallow water near shore and generally the larger species migrate in deeper water nearer mid-stream Since only a IS-fathom net of the most efficient type for non-salmon species was fished in the preferred habitat for these fish it is likely that the calculated efficiency was too high The other test nets were longer and also sampled some preferred areas for the targeted species

The opposite case is true for king salmon The 8 14 net is 20 fathoms longS fathoms shorter than the other nets used on this project This net does not cover all of the area preferred by king salmon This means king salmon

-12shy

escapement is probably underestimated but the 20 fathom net samples an area further out than the sonar counter even with its beam extended So the number of king salmon counted by the sonar is over estimated King salmon make up such a small percentage of the total salmon run that counting errors are more significant than this apportionment error

Very few churn and pink salmon were caught in the offshore end of the nets It is assumed these long nets had very little effect on the sonar count species apportionment

CONCLUSION

The feasibility of counting salmon in the Unalakleet River using side-scanning sonar is unlikely due to milling fish and the inal1ility to accurately apportion the sonar count to the various fish species It is possible that a partial escapement count could be made further up river above one or more of the major tributaries to the system The new north bank sonar site that showed some improvement over the former site had two differences that seemed to affect salmon migration The current was faster over the substrate at the second site and the river gravels were less ideal spawning habitat The new site was located below a rock bluff on the outside of a river bend

There are two similar sites up river about ten miles where the current is faster and the bottom is even less conducive to spawning During the 1984 field season a comparison of the smoother running south bank site and these up-river sites could be made The best time to do this would be during August when only coho salmon are migrating The counter should be operating by August 15 prior to milling activity and maintained for a week to evaluate if milling salmon became apparent later after the migration peaked The south bank site could be used as a control for comparison to 1983

-13shy

I I

5 1 2

Miles No tt h _

shy

R Iv er

Figure 1 Unalakleet Escapement Project

lt

Son sr

Fig u r e 2 S 0 0 a r Sit eSc hem a tic

ITower

Original Ninth Bank Sonar

Drift sets 5 minutes

Lf)

So t h Ban k Son a

lTower

o Work Tent

B Living Quarters

Figure 3Unalakleet Subsistence Survey 1983

Kin g- S a I m 0 n

1bull

10

9

c 8aI

-lE 11 t a til 7 ~ II 6 ~ U

5 til

0

c 4 til til

E 3 I

1 V

~ 2

1

27 1 5 10 15 20 25 30

~ June

Figure 4A Specie apportionment king salmon Un-alakleet sonar 1983

~

25

-l20

c 1 5 III () III

11

10

5

I

J

27 31 5 10 15 20 25 30 5 10 15 20 25 31

June Ju Iy

Figure 4B Specie middotapp~~tionment coho salmon Unalakleet sonar 1983

30

25

co ~

20

1 t~

C $

u 1 5 CD a

10

5

5 10 15 20 25 31 5 10 15 20 25 31 5

Ju August Sept e

Figure 4C Specie apportionment pink salmon Unalakleet sonar 1983

1 6

1 5

14

1 3

12

1 1

c II U CII

Ashy

10

9

a

7

01 ~

6

5

4

3

2

1

1 5 10 1 5

June

2 O 25 30 5 10 15 20

Ju Iy

25 31 5 10 15 20

August

25 31 5 10

Septem

Figure 40 Species apportionment chum salmon Unalakleet sonar 1983

16

1 5

1 4

13

1 2

1 1

10

9 c 8GI U

GI middot7 A

6

5

4

3

2

1

~

o N

~

1 5 10 15 20 25 30 5 10 15 20 25 3 1 5 10 15 20 25 31 5 10

June Ju Iy August Sept e

Figure 5 Specie apportionment Unalakleet sonar 1983

50

4

40

35

c J 30 0 U

~ 0 25 0 c Q)

u ~

Q) 20a

15

10

5

o L-_lt---__

King Coho Pink Chum Misc

21

----

Figure 6 Sector distribution of counts Unalakleet sonar1983

35

30

25

c 20 G)

() G) 15

0

10

5

35

30

25 c G)

() 20

G)

0 15

10

5

( s ()u t h ban k )

July 3-5

~-2 4 6 8 1 0 1 2 1 4 1 6shy

Sector

August 21-23

2 4 6 8 10 12 14 16

Sector

22

Figure 7 Hourly distribution of counts Unalakleet sonar 1983

(south bank)

14

12

10

c 8 GI U ~

6

July 3-5

~GI

I =~ Q

4

2 0

2 4 6 8 10 12 14 1 6 18 20 22 24

TIme

9

8

7

6

5 c GI U ~ 4 GI

Q

3

2

August 21-23

1

0

2 4 6 8 10 12 14

TIme

16

23

18 20 22 24

Figure 8 Unalakleet River Test Fishing Daily King CPUE in 8 14 mesh 1983

10

9 N

8 shy

7 I 0 c 6E

n

l J I I

0 0 5 c (J 4 co 0

3

2

1

I I

27 1 5 10 15 20 25 1 5 10 15 20 25 31

~ June July

Figure 9 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1983bull

~

middot10

09 U N

I 08 0 c 07E I ()

- 06 E-0 0 05 shy~ () 04 ca - ()

03E I 0 02

01

27 1 5 10 15 2Q 25 1 5 10 15 20 25 31

June July

Figure 10 Unalakleet River Test Fishing Daily Coho CPUE in 5 78 mesh 1983

1

6

5

I 0

NI II I 0 t

E 4

0 0 c 3() cu 0

2

1

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sept U

Figure 11 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1983

200

175

150

I 0 c 125E I ()

E

r-shy-0 I I N 0 100 c ()-as ()

75E I 0

50

25

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sel ber

20

Figure 12 Unalakleet River Test Fishing Daily Pink CPUE in 4 mesh 1983

18

I

0) N

II

16

I ishy

14 J 0 t 12shyE 0 10 0 shys 8 () as

0 6 1 I V 4

2

~ I

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

--

Figure 13 Unalakleet River Test Fishing Cumulat ive Pink CPUE in 4 mesh 1983

10

9 01 N 8

J 0 J 7 E J 0 6 E- 50 ~

amp 4() ca

0 3 E J

0 2

1

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

Figure 14 Unalakleet River Test Fishing Daily CPUE in 5 14 amp 5 78 mesh 1983

14

13shy

12

11

10

9 J 0 8

I z shy-E 7 0 0 shys ~u aI 0

4 I

31

2

1

II

0 C1)I 11

I I I II

bull y AA(net changed to 5 78

AA A 11 I

~ I~ V ~

- I

VI

1 5 10 15 20- 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

cJune July August

Figure 15 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 14 amp 5 78 mesh 1983

It

5

--l C)

net changed to 5 78

~ 4 o

c E (J ~

3E o o c 2 u ~ -(J

E ~ (J 1

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 16 Unalakleet River Test Fishing Catch Proportions 1983

60

55

---- King50

__ Coho 45

P--Q Pink

40 __ Chum

I LU 35J D I 0

30 ICQ 0 25 I

N Cl0 20

c G)

15u G)

D

10

5 A 1 I

I 4 I

I I

3 lt

~

2

I I1 - I bull I

I ~ ~ ~ t -J ~~ - _

r

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 17 Unalakleet Area Temperatures 1983

18

16

14

12

til 10I

u-G) 80 CI) G) G) 6 C) G)

Q 4

2

C) C)

__ Air

0--0 River 2

0

-2

-4

---------~ ~

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August 5e

4

Figure 18 Unalakleet River Turbidity and Depth 1983

__ Secchi Reading

-t ()

II) G)-G)

3

iE 2

1

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August

~ 1 _ ~ r--- I shy I __ I 01 --shy

Figure 19 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1981-83

27 31 5

May

_1981

____ 1982

o 0 1983 11) C)

Changed to 5 78 mesh

I

t

~-~o-~ Q-O--Oolt)-(IQ-----l

--1

_10 15 20 25 30 5 10 15 20 25 31

June July

I I I

~

0 ~

r E ~

CJ shyE 0 0 I

shyr u-cu CJ

E ~

CJ

4

35

30

25

20

15

10

05

Figure 20 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 78 mesh 1981-83

5

4 lI 0

z

E lI 0 3 E-0 0 2 r CJ-cu 0

E lI 1 0

__1981 ~~

~ ___1982

a 01983 5 148 mesh from 65-810

_----shy-- 0 - -- C1) A - _ - ~

~ I

I

II I I I I I

I I

1

~ -

-

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 21 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 mesh- 1981-83

8

70

60

50

40 0

r 30E

0 20E-0 0 10 s= u 8 tV 0 6E 0 4

2

__1981 ____ 1982

_1983

shy--- -- shy--- shy J - -

I

I

C1- J

I

-----l---l ~--~r---------------r--

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 22 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1981-83

_1981

~ __ 1982

~1983

25

00I _ __ _ _ C)~ I __ _ I

I V o 20 rt I I

E I AshyI o E 15-o o z u 10 tU o E I o 5

I

1 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

July August 5

----------------------------------------------------------------

Table 1 Unalakleet River Subsistence King Salmon Index 1983

Number of Number of Date Fishermen Chinook Average

08 02 18 05 05 00 02 58 92 62 72 72 42 28 52 60 62 20 47 50 35 25 15

June 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Totals

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 4 4 4

4

3 1 7 2 2 o 1

23 37 25 29 29 17 11 21 24 25

6 14 15 14 H~

6

322

~

39

---------------------- ---------- --------------------------------------

----------------------------------------------------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983

Daily Proportion Cumu1 Prop Date South North Total of Total Cumulative of Total

64 7 23 30 1313131 313 013131 65 44 187 231 00137 261 01308 66 12 162 174 01305 435 01313 67 8 283 291 1313139 726 01322 68 0000 726 13022 69 3 221 224 013137 950 13029 610 26 245 271 131308 1221 13037 611 56 254 310 131310 1531 131347 612 44 736 780 013 24 2311 13071 613 64 1188 1252 01339 3563 01113 614 59 1752 1811 0056 5374 0166 615 97 844 941 01329 6315 0195 616 165 729 894 0028 7209 0223 617 151 i 604 1755 0054 8964 middot 0277 618 i ll 1524 1635 0051 10599 13328 619 175 2000 2175 0067 12774 13395 620 171 21320 2191 0068 14965 0463 621 220 1613 1833 0057 16798 0520 622 199 2065 2264 0070 19062 0590 623 362 21334 2396 0074 21458 13664 624 876 3403 4279 13133 25737 0797 625 1244 2023 3267- 0101 29004 0898 626 738 1601 2339 0073 31343 0971 627 573 3265 3838 0119 35181 1090 628 547 1868 2415 0075 37596 1165 629 528 4028 4556 0141 42152 1306 630 430 430 0013 42582 1319 71 240 240 01307 42822 1326 72 201 975 1176 0036 43998 1362 73 309 8842 9151 0284 53149 1646 74 475 6385 6860 0213 60009 1859 75 565 3342 3907 0121 63916 1980 76 1377 2094 3471 0108 67387 2088 77 1416 3173 4589 0142 71976 2230 78 1472 1420 2892 0090 74868 2320 79 2071 1452 3523 01113 78391 2430 710 3318 2434 5752 0178 84143 2608 711 2673 2866 5539 13172 89682 2780 712 1665 1747 3412 13106 93094 2886 713 21317 1951 3968 13123 97062 3009 714 2991 2664 5655 0175 102717 3184 715 2646 2548 5194 13161 107911 3345 716 2488 2886 5374 0167 113285 3512 717 1585 4063 5648 0175 118933 3687 718 3559 9326 12885 0400 131818 4087 719 2948 2398 5346 13166 137164 4253 720 1640 3330 4970 0154 142134 4407 721 2416 6420 8836 0274 150970 4681 722 3298 3298 0102 154268 4783 723 5007 5007 0155 159275 4938

40

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-----------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983 (Continued)

Daily Proportion Cum Prop Date South North Total of Total Cumu1at i ve of Total

724 4005 7804 11809 0366 171084 5304 725 2453 3392 5845 0181 176929 5485 726 2166 12094 14260 0442 191189 5927 727 1914 4472 6386 0198 197575 6125 728 1603 3463 5066 0157 202641 6282 729 1251 1914 3165 0098 205806 6380 730 1710 2495 4205 en30 210011 6510 731 2542 1887 4429 0137 214440 6647 81 4479 2271 6750 0209 221190 6856 82 1103 1806 2909 0091 224099 6947 83 1719 942 2661 0083 226760 bull 7030 84 1519 2557 4076 0126 230836 7156 85 1259 1113 2372 0074 233208 7230 86 940 2189 3129 0097 236337 7327 87 1467 4354 5821 0180 242158 7507 88 2318 1584 3902 0121 246060 7628 89 2098 1505 3603 0112 249663 7740 810 2629 1517 4146 bull 0129 253809 7869 811 3753 1091 4844 0150 258653 8019 812 1489 523 2012 0062 260665 8081 813 744 353 1097 0034 261762 8386 814 981 981 bull 0030 262743 8145 815 2324 2324 0072 265067 8217 816 2638 2638 0082 267705 8299 817 2073 731 2804 0087 270509 8115 818 2244 675 2919 0091 273428 8477 819 3240 696 3936 0122 277364 8599 820 2363 503 2866 0089 280230 8688 821 6789 1111 7900 0245 288130 8933 822 6489 563 7052 0219 295182 9152 823 5077 298 5375 0167 300557 9319 824 2616 298 2914 0090 303471 9409 825 3933 412 4345 0135 307816 9544 826 1393 554 1947 0060 309763 9604 827 1203 463 1666 0052 311429 9656 828 1197 542 1739 0054 313168 9710 829 1244 221 1465 0045 314633 9755 830 1011 199 1210 0038 315843 9793 831 718 214 932 0029 316775 9822 91 1324 318 1642 0052 318417 9874 92 1362 307 1669 0052 320086 9926 93 1146 314 1460 0045 321546 9971 94 652 296 948 bull 0029 322494 10000

148465 174029 322494 10000

41

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-------------------------------------------------------------------- --

------

TABLE 3A Unalakleet River Species Apportionment by Test Period King Salmon 1983

3-Day App Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 76 0272 76 0272

69-612N 28 0100 104 0372

612N-615 461 1652 565 2024

616-619N 419 1502 984 3526

619N-622 170 0609 1154 4135

623-626N 722 2588 1876 6723

626N-629 264 0946 2140 7669

630-73N 103 0639 2243 8038

73N-76 188 0674 2431 8712

77-710N 0 0000 2431 8712

710N-713 0 0000 2431 8712

714-717N 267 0957 2698 9969

717N-720 0 0000 2698 9669

721-724N 92 0331 2790 1 0000

724N-727 0 0000 2790 10000

728-731N 0 0000 2790 1 0000

731N-83 0 0000 2790 1 0000

2790 10000

42

Dates

714-717N

717N-720

721-724N

724N-727

728-731N

731N-83

84-87N

87N-810

811-814N

814N-817

818-821N

821N-824

825-828N

828N-831

91-94

TABLE 3B Unalakleet River Species Apportionment by Test Period Coho Salmon

3-Day Count

583

338

436

550

2650

1174

793

1435

5074

1280

435

2265

171H3

1983

Proportion of Season Total

0000

0000

0000

0343

0199

0256

0323

1558

0690

0466

0843

2983

0752

0256

1331

Cumulative Count

583

921

1357

1907

4557

5731

6524

7959

13033

14313

14748

17013

Cumulative Proportion

0000

0000

0000

0343

0542

0798

1121

2679

3369

3835

4678

7661

8413

8669

10000

43

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----- ------

TABLE 3C Unalakleet River Species Apportionment by Test Period Pink Salmon 1983

3-Day P roport ion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 0 0000

6l2N-615 0 0000

616-6l9N 97 0012

6l9N-622 332 0036

623-626N 1245 0136

626N-629 6624 0721

630-73N 3699 0403

73N-76 10762 1171

77-7l0N 7704 0838

710N-7l3 8529 0928

714-717N 9771 1063

717N-720 13845 1507

721-724N 11361 1236

724N-727 6544 0712

728-731N 3545 0386

731N-83 1628 0177

84-87N 1224 0133

87N-810 1777 0193

811-814N 802 0087

814N-817 561 0061

818-821N 533 0058

821N-824 8313 13091

825-828N 468 0051

828N-831 0 0000

91-94 0 0000

91881 10000

0 0000

0 0000

0 0000

97 0012

429 0048

1674 0184

8298 0905

11997 1308

22759 2479

30463 3317

38992 4245

48763 5308

62608 6815

73969 8051

80513 8763

84058 9149

85686 9326

86910 9459

88687 9652

89489 9739

90050 9800

90583 9858

91413 9949

91881 10000

91881 10000

91881 1 0000 44

------------------------------------------------------------------

------------ ------------------------------------------------------

----- ------

TABLE 3D Unalakleet River Species Apportionment by Test Period Chum Salmon 1983

3-Day Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 100 0017

612N-615 268 0046

616-619N 838 0144

619N-622 1180 0202

623-626N 2744 0471

626N-629 1569 0270

630-73N 796 0137

73N-76 2972 0510

77-710N 2068 0355

710N-713 2622 0450

714-717N 4133 0710

717N-720 5596 0960

721-724N 4978 0854

724N-727 8974 1540

728-731N 2241 0385

731N-83 2079 ~0357

84-87N 3009 0516

87N-810 2432 0417

811-814N 937 0161

814N-817 454 0078

818-821N 2584 0443

821N-824 2739 0470

825-828N 1783 0306

828N-831 765 0131

91-94 412 0070

58273 10000 45

0 0000

100 0017

368 0063

1206 0207

2386 0409

5130 0880

6699 1150

7495 1287 f

10467 1797

12535 2152

15157 2602

19290 3312

24886 4272

29864 5216

38838 6666

41079 7051

43158 7408

46167 7924

48559 8341

49536 8502

49990 8580

52574 9023

55313 9493

57096 9799

57861 9930

58273 1 0000

-------------------------------------------------------------

------------------------- ------------------------------------

TABLE 4 Unalakleet River Test Net Proportions by Sample Perio-d 1983 ( Selective CPUE)

Dates Chinook Coho Pink Chum Misc

64-68 105 00 00 895

69-612N 24 00 83 893

612N-615 1C~ 5 00 61 834

616-619N 78 18 156 748

619N-622 23 45 160 772

623-626N 65 112 247 576

626N-629 22 553 131 294

630-73N 16 576 124 284

73N-76 10 572 158 260

77-710N 00 555 149 296

710N-713 00 540 166 294

714-717N 14 00 513 217 256

717N-720 00 00 532 215 253

721-724N 04 00 493 216 287

724N-727 00 18 202 277 503

728-731N 00 23 242 153 582

731N-83 00 30 112 143 715

84-87N 44 98 241 617

87N-810 182 122 167 529

811-814N 139 95 111 655

814N-B17 96 68 55 7B1

B18-B21N 105 39 1B9 667

821N-824 263 43 142 552

825-B28N 145 53 202 600

828N-831 97 00 171 732

91-94 396 00 72 532

46

--------

--------

TABLE 4 Una1ak1et River Test Net Proportions 1983 ( Selective CPUE) (Continued)

Comparative Apportionment

Species Apportionment

Chinook 2790 Coho 17013 Pink 91881 Churn 58273

------shySubtotal 169957

Misc Species 152537 ------shy

Total 322494

Substrate Comparison -------------------shy

Bank Counts -----shy

South 148465 North 174029

------shy

Total 322494

Percent of Total Counts

09 53

285 181

5408

472

1000

Percent

460 540

1000

47

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TABLE 5A Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

May 27 28

21 5 482

13 13

1313

1313 21 5 697

13 13

1313

1313 30 240 0 013 937 0 00 31 246 2 41 1183 2 08

June 1 237 0 00 1420 2 07 2 3

256 585

13 13

013 bull 13 13

1676 2 261

2 2

6bull 13 4

5 6 8

160 120 middot 125

13 1

13 42 130

2 421 2541 2666

~ 2 3 3

bull 13 4 136 136

9 122 0 130 2788 3 05 11 117 00 2905 3 05 12 126 13 00 3031 3 05 13 117 1 43 3148 4 06 15 118 0 013 3266 4 136 16 116 1 43 3382 5 138 18 240 13 130 3622 5 07 19 121 0 00 3743 5 07 20 116 0 00 3859 5 136 22 118 1 42 3977 6 138 23 119 1 42 4196 7 08 25 240 0 013 4336 7 138 26 119 13 1313 4455 7 138 27 119 13 1313 4574 7 138 29 1213 13 130 4694 7 137 313 1213 13 00 4814 7 07

July 2 238 0 1313 51352 7 07 3 118 13 013 51713 7 07 4 118 1 42 5288 8 138 6 122 0 00 5410 8 07 7 116 13 00 5526 8 07

10 126 0 1313 5652 8 07 11 119 0 013 5771 8 07 13 116 13 130 5887 8 07 14 119 2 84 6006 10 07 17 122 0 00 6128 10 07 18 112 0 1313 6240 10 136 20 119 13 00 6359 10 06 21 112 0 013 6471 10 06

6471 10

48

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TABLE 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983

Cum Cum Date Hours Catch CPUE Hours Catch CPUE

July 24 26

115 120 0 00

115 235

0 0

00

00 27 117 4 00 352 0 00 29 117 0 137 469 4 34 31 116 3 103 585 7 48

August 2 122 0 00 706 7 40 3 122 2 66 828 9 43 5 118 1 34 946 10 42 7 128 14 437 1074 24 89 9 257 14 218 1331 38 114

10 125 21 672 1456 59 162 12 13 middot- 0 00 1469 x 59 161 14 10 7 12 449 1576 71 180 16 122 2 66 1698 73 172 17 123 6 196 1821 79 174 19 118 1 34 1939 80 165 21 112 6 214 2051 86 168 23 120 3 100 217 1 89 164 24 115 2 70 2286 91 159 26 115 5 174 2401 96 160 28 119 0 00 2520 96 152 30 119 4 1 34 2639 100 152 31 117 1 34 2756 101 147

Sept 2 123 5 33 2879 106 147 4 479 15 125 3358 121 144 6 238 11 185 3596 132 147 7 237 5 84 3833 137 143 8 238 6 1 01 4071 143 141 9 242 10 1 65 4313 153 142

10 242 3 50 4555 156 137 11 242 2 33 4797 158 132 12 241 8 133 5038 166 132 14 227 14 247 5265 180 137 15 242 9 149 5507 189 137 16 210 3 57 5717 192 134 17 239 2 33 5956 194 130 18 230 2 35 6186 196 127 20 489 4 33 6675 200 120 21 24 3 50 6915 203 117 22 242 0 00 7157 203 113 23 234 1 17 7391 204 110

----shy

7391 204

Mesh size = 5 14 from 724 to 810

49

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TABLE 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE ------~-----------------------------------------------------------June 16 122 1 33 122 1 33

17 118 0 bull 0 0 240 1 17 20 120 2 67 360 3 33 21 118 0 00 478 3 25 23 119 2 67 597 5 34 24 119 3 102 716 8 45 27 116 19 655 832 27 130 28 120 22 733 952 49 206 30 120 40 1333 1072 89 332

July 1 115 36 1252 1187 125 421 4 122 30 983 1309 155 474 5 114 47 1649 1423 202 568 7 118 30 1016 1541 232 602 8 120 shy 24 800 1661 -$ 256 616

11 122 42 1377 1783 298 669 12 120 29 967 1903 327 687 14 116 37 1276 2019 364 721 15 118 40 1356 2137 404 756 18 121 60 1976 2258 464 822 19 119 30 740 2377 494 831 21 125 61 1952 2502 555 887 22 118 25 847 2627 580 883 25 122 16 525 2749 596 867 26 116 15 517 2865 611 853 28 122 28 918 2987 639 856 29 117 11 376 3104 650 838

August 1 120 7 233 3224 657 815 2 119 9 303 3345 666 796 4 120 3 100 3465 669 772 5 118 5 170 3583 674 752 8 114 7 245 3697 681 734

11 123 7 337 3 82 0 688 720 15 118 2 68 3938 690 701 16 113 5 177 4051 695 686 18 98 3 122 4149 698 673 19 119 1 34 4268 699 655 22 112 0 00 4380 699 638 23 115 0 00 4495 699 622 25 120 2 66 4615 701 606 26 112 1 36 4727 702 594 29 116 0 00 4843 702 580 30 11 5 0 00 4958 702 566

Sept 1 115 0 00 5079 702 553 2 112 0 00 5191 702 541

----shy5079 702

50

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TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

June 5 73 0 00 73 0 00 7 126 0 00 199 0 00 8 127 0 00 326 0 bull 0 0

10 11 4 3 105 440 3 27 12 113 2 71 553 5 36 14 119 1 34 672 6 36 15 116 4 138 788 10 51 17 116 3 103 904 13 56 19 118 6 203 1022 19 74 21 118 0 00 1140 19 67 22 117 10 342 1257 29 92 24 116 3 103 1373 32 93 26 119 11 370 1492 43 115 28 11 8 6 203 1610 $ 49 122 29 115 13 452 1725 62 144

July 1 119 8 269 1844 70 152 3 119 17 571 1963 87 177 5 119 13 437 2082 100 192 6 12 0 17 567 2202 117 213 8 121 7 231 2323 124 214

10 11 4 18 632 2437 142 233 12 115 12 417 2552 154 241 13 116 37 1276 2668 191 286 15 117 16 547 2785 207 297 17 11 8 31 1051 290 3 238 328 19 118 18 610 3021 256 339 20 115 29 1009 3136 285 364 22 122 17 557 3258 302 371 24 115 24 835 3373 326 387 26 120 19 633 3493 345 395 27 117 11 376 3610 356 394 29 117 14 479 3727 370 397 31 116 18 621 3843 388 404

August 2 121 9 298 3964 397 401 3 122 17 557 4086 414 405 5 11 8 8 271 4204 422 402 7 128 19 594 4332 441 407 9 257 10 156 4589 451 393

10 125 14 448 4714 464 394 12 13 1 308 4727 465 393 14 107 5 187 4834 470 389 16 122 4 131 4956 474 383 17 123 15 488 5079 489 385 19 118 8 271 5197 497 383 21 112 3 107 5309 500 378 23 120 6 200 5429 506 373 24 115 7 243 5544 513 370

51

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TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 (Continued)

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

August 26 115 5 174 5657 518 366 28 119 1 34 577 6 519 359 30 119 4 134 5895 523 355 31 117 0 00 6012 523 3 48

Sept 2 123 3 98 613 5 526 343 4 479 2 17 6614 528 319 6 238 1 17 6852 529 309 7 237 0 00 7089 529 298 8 9

238 242

1 2

17

33 7327 7569

clt

530 532

289 281

10 242 3 50 7811 535 274 11 242 0 00 8053 535 266 12 241 2 33 8294 537 259 14 227 3 53 8521 540 253 15 242 0 00 8763 540 246 16 210 1 19 8973 541 241 17 239 2 33 9212 543 236 18 230 0 00 9442 543 230 20 489 0 00 9931 543 219 21 240 2 33 10171 545 214 22 242 0 0 10413 545 209 23 234 0 00 10647 545 205

----shy

10647 545

52

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------

TABLE 6A Unalakleet River Sonar Site Drift Sets5 1 4n Me sh 19 83 bull

Date Time Result

July 19 1405-1413 1 burbot July 23 1040-1055 1 pink caracass July 27 1520-1530 1 coho August 3 1444-1501 4 coho August 22 1930-1937 0 August 23 937-943 1 coho 1 pink carcass August 26 1117-1127 1 coho 3 churn August 31 1018-1034 3 churn

TABLE 6B Unalakleet River Sonar Site Beach Seines 1983

Date Time Distance Result

July 20 1445 120 meters 4 pink 1 churn 13 Dolly Varden 1 whitefish

July 25 1500 120 meters 6 pink 1 churn 1 Dolly Varden 4 whitefish 1 grayling

July 28 1700 120 meters 4 coho 2 pink 2 churn 1 Dolly Varden

August 1 2010 300 meters 4 pink 3 churn 8 Dolly Varden

August 4 1015 130 meters 5 coho 3 pink 3 churn 65 Dolly Varden 3 whitefish 3 grayling

August 24 1110 130 meters 18 coho 2 Dolly Varden 2 grayling

August 29 1715 120 meters 11 coho 1 pink 69 churn 1 Dolly Varden 2 grayling

Seine done at mile 12 Unalakleet River

53

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TABLE 7 AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER CATCH SAMPLE SPORT CATCH AND SPAWNING SURVEYS 1983

II

COMBINED 3-2 4-2 4-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 31 646 6702 5 104 5010 8 167 5688 1 21 5900

Female 17 354 8540 o o 1 21 5450 o o

Total 48 1000 7353 5 104 5010 9 188 5661 1 21 5900

~ 11)

5-2 6-2 7-2 7-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 11 229 7382 6 125 8350 0 0 0 0

Female 2 42 7925 12 250 8742 1 21 10650 1 21 8350

Total 13 271 7465 18 375 8611 1 21 10650 1 21 8350

TABLE 8A AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER TEST NET SAMPLE 1983

-----~-------------------------------------------------------------------------------------------------------

gt

COMBINED 4-2 5-2 5-3 6-2 7-2 NO LENGIH NO LENGIH NO LENGIH NO LENGTH NO LENGTH NO LENGTr

8 14 n

Male 3 333 8107 0 1 111 5800 o 0 2 222 9260 0 0 Female 6 667 8295 0 0 1 111 7600 o o 4 444 8310 1 111 8930 Total 9 10 e 0 8232 0 o 2 222 6700 o o 6 667 8627 1 111 8930

If) If)

5 14 Male 19 1000 6298 12 632 5392 4 211 6990 0 o 3 158 8997 0 0 Female o 0 o o o o o o 0 0 0 0 Total 19 1000 6298 12 632 5392 4 211 6990 o o 3 158 8997 0 0

4 n or Smaller Male 6 667 5930 1 111 4660 2 222 6325 3 333 6090 0 o 0 o Female 3 333 8970 o o o o o o 3 333 8970 0 o Total 9 1000 6943 1 111 466 2 222 6325 3 33 3 6090 3 33 3 8970 0 0

TOTAL Hale 28 757 6413 13 351 5336 7 189 6630 3 8 1 6090 5 13 5 9102 o 0 Female 9 243 852 o o 1 27 7600 o o 7 189 8593 1 2 7 8930 Total 37 1000 6925 13 351 5336 8 216 6751 3 8 1 6090 12 324 88 e 5 1 2 7 8930

---------------------------------------------------------------------------------------------------------

---------------------------------------------------------------------------------------------------------

TABLE 8B AGE SEX AND SIZE COMPOSITION OF NORTON SOUND COHO SALMON UNALAKLEET RIVER TEST NET SAMPLE 5 14 AND 5 78 GEAR 1983

COMBINED 3-2 4-3 4-4 5-4 NO LENGIH NO LENGIH NO LENGTH NO LENGIH NO LENGTH

Male 9 900 5489 0 0 9 900 5489 0 0 Female 1 10 bull 0 552 QJ QJ 0 1 10QJ 5520 0 0 Total 10 1000 5492 0 0 10 1000 5492 0 0 725-731

bull LI)Male 15 938 5645 15 938 5645 Female 1 62 575 QJ 1 62 575 QJ Total 16 lQJ0QJ 5651 16 100QJ 5651 81-87

Male 24 545 5668 23 523 5768 1 23 3350 Female 20 455 5631 20 455 5631 0 0 Total 441QJ0QJ 5651 43 977 57 QJ 4 1 23 335 QJ 88-814

Male 7 500 5797 7 500 5797 QJ 0 Female 7 500 5596 6 429 5587 1 71 5650 Total 14 1000 5696 13 929 1 71 5650570 815-821

Male 5 455 5492 5 455 5492 Female 6 545 5552 6 545 5552 Total 11 lQJ00 5525 11 100QJ 5525 822-828

species other than salmon the relative abundance of coho salmon in August and the presence of spawning churn salmon in the south bank substrate area

Riyer SurveysAerial SurVeys

On July 29th 32 miles of the North River were surveyed by a two-person crew for the purpose of counting live chinook and sampling chinook carcasses A total of 166 live chinook were counted and 3 chinook carcasses were sampled with approximately half of the chinook counted between mile 25 and mile 32

Originally the Old Woman River survey was to be a six-day trip Due to the damage the plane suffered dropping the first crew member off the second member and support gear was not av~ilable for the survey as planned~ The survey of the Old Woman River August 6-8 counted 60 king salmon but only four samples were collected Weather prevented the survey of the main river

King Salmon Spo rt Fish Survey

A sport fishing lodge on the Unalakleet River is responsible for the majority of the sport fishing effort Periodic surveying of lodge personnel indicates that a fair quantity of king salmon are harvested by sport fishing A quantitative survey was not done however due to limited time available A total of 43 chinook was sampled from sport fishing catches

DISCUSSION

River levels were lower than normal during the spring of 1983 due to the lack of snow accumulation the previous winter The Unalakleet River cleared early and became quite low during late June and early July The low water allowed the counting towers at the sonar site to be used during calm survey days which wasnt possible during 1982

Tower observations made as early as June 28 showed serious milling problems at the north bank sonar site The sonar was moved to a new site on July 2 Milling fish were still a considerable problem at the new site but about half the hourly count were considered acceptable during mid-July Milling salmon were a problem through most of the field season Milling salmon of all four species were observed

-11shy

during the latter half of each respective migration Pink salmon presented the worst problem and churn the least Unfortunately milling pinks invalidated the churn count since the two runs overlap Coho salmon exhibited some milling but an accurate evaluation of this problem was hampered by turbid water Milling coho became a problem after August 20

The milling observed from the towers was not apparent to the observer at the oscilloscope because of the overwhelming number of spikes present at that stage of the salmon migration During 1982 when tower observations were not possible the oscilloscope appeared to have an extraordinary number of spikes The large pink salmon count recorded in 1982 may have been an artifact of milling behavior that was unobservable then Commercial catch and test net catch statistics indicate a large pink salmon run f However it is likely fish milling over the substrate exaggerated the sonar count although without tower observations it can not be proven

Another problem observed during the 1983 field season was avoidance of the substrate by all fish species This problem was at its worst when water was low and clear Angling the substrate slightly downstream as it was after July 15 helped considerably By extending the sonar beam periodically it was determined that as visibility decreased so did avoidance

Species apportionment of the sonar count was done using test net catches Some of the problems encountered with the sampling scheme should be pointed out Test nets were assumed to sample the same portion of the river as the sonar Since three net lengths were used this seemed suspect Different species migrate at different depths The non-salmon species tend to migrate in shallow water near shore and generally the larger species migrate in deeper water nearer mid-stream Since only a IS-fathom net of the most efficient type for non-salmon species was fished in the preferred habitat for these fish it is likely that the calculated efficiency was too high The other test nets were longer and also sampled some preferred areas for the targeted species

The opposite case is true for king salmon The 8 14 net is 20 fathoms longS fathoms shorter than the other nets used on this project This net does not cover all of the area preferred by king salmon This means king salmon

-12shy

escapement is probably underestimated but the 20 fathom net samples an area further out than the sonar counter even with its beam extended So the number of king salmon counted by the sonar is over estimated King salmon make up such a small percentage of the total salmon run that counting errors are more significant than this apportionment error

Very few churn and pink salmon were caught in the offshore end of the nets It is assumed these long nets had very little effect on the sonar count species apportionment

CONCLUSION

The feasibility of counting salmon in the Unalakleet River using side-scanning sonar is unlikely due to milling fish and the inal1ility to accurately apportion the sonar count to the various fish species It is possible that a partial escapement count could be made further up river above one or more of the major tributaries to the system The new north bank sonar site that showed some improvement over the former site had two differences that seemed to affect salmon migration The current was faster over the substrate at the second site and the river gravels were less ideal spawning habitat The new site was located below a rock bluff on the outside of a river bend

There are two similar sites up river about ten miles where the current is faster and the bottom is even less conducive to spawning During the 1984 field season a comparison of the smoother running south bank site and these up-river sites could be made The best time to do this would be during August when only coho salmon are migrating The counter should be operating by August 15 prior to milling activity and maintained for a week to evaluate if milling salmon became apparent later after the migration peaked The south bank site could be used as a control for comparison to 1983

-13shy

I I

5 1 2

Miles No tt h _

shy

R Iv er

Figure 1 Unalakleet Escapement Project

lt

Son sr

Fig u r e 2 S 0 0 a r Sit eSc hem a tic

ITower

Original Ninth Bank Sonar

Drift sets 5 minutes

Lf)

So t h Ban k Son a

lTower

o Work Tent

B Living Quarters

Figure 3Unalakleet Subsistence Survey 1983

Kin g- S a I m 0 n

1bull

10

9

c 8aI

-lE 11 t a til 7 ~ II 6 ~ U

5 til

0

c 4 til til

E 3 I

1 V

~ 2

1

27 1 5 10 15 20 25 30

~ June

Figure 4A Specie apportionment king salmon Un-alakleet sonar 1983

~

25

-l20

c 1 5 III () III

11

10

5

I

J

27 31 5 10 15 20 25 30 5 10 15 20 25 31

June Ju Iy

Figure 4B Specie middotapp~~tionment coho salmon Unalakleet sonar 1983

30

25

co ~

20

1 t~

C $

u 1 5 CD a

10

5

5 10 15 20 25 31 5 10 15 20 25 31 5

Ju August Sept e

Figure 4C Specie apportionment pink salmon Unalakleet sonar 1983

1 6

1 5

14

1 3

12

1 1

c II U CII

Ashy

10

9

a

7

01 ~

6

5

4

3

2

1

1 5 10 1 5

June

2 O 25 30 5 10 15 20

Ju Iy

25 31 5 10 15 20

August

25 31 5 10

Septem

Figure 40 Species apportionment chum salmon Unalakleet sonar 1983

16

1 5

1 4

13

1 2

1 1

10

9 c 8GI U

GI middot7 A

6

5

4

3

2

1

~

o N

~

1 5 10 15 20 25 30 5 10 15 20 25 3 1 5 10 15 20 25 31 5 10

June Ju Iy August Sept e

Figure 5 Specie apportionment Unalakleet sonar 1983

50

4

40

35

c J 30 0 U

~ 0 25 0 c Q)

u ~

Q) 20a

15

10

5

o L-_lt---__

King Coho Pink Chum Misc

21

----

Figure 6 Sector distribution of counts Unalakleet sonar1983

35

30

25

c 20 G)

() G) 15

0

10

5

35

30

25 c G)

() 20

G)

0 15

10

5

( s ()u t h ban k )

July 3-5

~-2 4 6 8 1 0 1 2 1 4 1 6shy

Sector

August 21-23

2 4 6 8 10 12 14 16

Sector

22

Figure 7 Hourly distribution of counts Unalakleet sonar 1983

(south bank)

14

12

10

c 8 GI U ~

6

July 3-5

~GI

I =~ Q

4

2 0

2 4 6 8 10 12 14 1 6 18 20 22 24

TIme

9

8

7

6

5 c GI U ~ 4 GI

Q

3

2

August 21-23

1

0

2 4 6 8 10 12 14

TIme

16

23

18 20 22 24

Figure 8 Unalakleet River Test Fishing Daily King CPUE in 8 14 mesh 1983

10

9 N

8 shy

7 I 0 c 6E

n

l J I I

0 0 5 c (J 4 co 0

3

2

1

I I

27 1 5 10 15 20 25 1 5 10 15 20 25 31

~ June July

Figure 9 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1983bull

~

middot10

09 U N

I 08 0 c 07E I ()

- 06 E-0 0 05 shy~ () 04 ca - ()

03E I 0 02

01

27 1 5 10 15 2Q 25 1 5 10 15 20 25 31

June July

Figure 10 Unalakleet River Test Fishing Daily Coho CPUE in 5 78 mesh 1983

1

6

5

I 0

NI II I 0 t

E 4

0 0 c 3() cu 0

2

1

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sept U

Figure 11 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1983

200

175

150

I 0 c 125E I ()

E

r-shy-0 I I N 0 100 c ()-as ()

75E I 0

50

25

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sel ber

20

Figure 12 Unalakleet River Test Fishing Daily Pink CPUE in 4 mesh 1983

18

I

0) N

II

16

I ishy

14 J 0 t 12shyE 0 10 0 shys 8 () as

0 6 1 I V 4

2

~ I

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

--

Figure 13 Unalakleet River Test Fishing Cumulat ive Pink CPUE in 4 mesh 1983

10

9 01 N 8

J 0 J 7 E J 0 6 E- 50 ~

amp 4() ca

0 3 E J

0 2

1

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

Figure 14 Unalakleet River Test Fishing Daily CPUE in 5 14 amp 5 78 mesh 1983

14

13shy

12

11

10

9 J 0 8

I z shy-E 7 0 0 shys ~u aI 0

4 I

31

2

1

II

0 C1)I 11

I I I II

bull y AA(net changed to 5 78

AA A 11 I

~ I~ V ~

- I

VI

1 5 10 15 20- 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

cJune July August

Figure 15 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 14 amp 5 78 mesh 1983

It

5

--l C)

net changed to 5 78

~ 4 o

c E (J ~

3E o o c 2 u ~ -(J

E ~ (J 1

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 16 Unalakleet River Test Fishing Catch Proportions 1983

60

55

---- King50

__ Coho 45

P--Q Pink

40 __ Chum

I LU 35J D I 0

30 ICQ 0 25 I

N Cl0 20

c G)

15u G)

D

10

5 A 1 I

I 4 I

I I

3 lt

~

2

I I1 - I bull I

I ~ ~ ~ t -J ~~ - _

r

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 17 Unalakleet Area Temperatures 1983

18

16

14

12

til 10I

u-G) 80 CI) G) G) 6 C) G)

Q 4

2

C) C)

__ Air

0--0 River 2

0

-2

-4

---------~ ~

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August 5e

4

Figure 18 Unalakleet River Turbidity and Depth 1983

__ Secchi Reading

-t ()

II) G)-G)

3

iE 2

1

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August

~ 1 _ ~ r--- I shy I __ I 01 --shy

Figure 19 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1981-83

27 31 5

May

_1981

____ 1982

o 0 1983 11) C)

Changed to 5 78 mesh

I

t

~-~o-~ Q-O--Oolt)-(IQ-----l

--1

_10 15 20 25 30 5 10 15 20 25 31

June July

I I I

~

0 ~

r E ~

CJ shyE 0 0 I

shyr u-cu CJ

E ~

CJ

4

35

30

25

20

15

10

05

Figure 20 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 78 mesh 1981-83

5

4 lI 0

z

E lI 0 3 E-0 0 2 r CJ-cu 0

E lI 1 0

__1981 ~~

~ ___1982

a 01983 5 148 mesh from 65-810

_----shy-- 0 - -- C1) A - _ - ~

~ I

I

II I I I I I

I I

1

~ -

-

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 21 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 mesh- 1981-83

8

70

60

50

40 0

r 30E

0 20E-0 0 10 s= u 8 tV 0 6E 0 4

2

__1981 ____ 1982

_1983

shy--- -- shy--- shy J - -

I

I

C1- J

I

-----l---l ~--~r---------------r--

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 22 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1981-83

_1981

~ __ 1982

~1983

25

00I _ __ _ _ C)~ I __ _ I

I V o 20 rt I I

E I AshyI o E 15-o o z u 10 tU o E I o 5

I

1 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

July August 5

----------------------------------------------------------------

Table 1 Unalakleet River Subsistence King Salmon Index 1983

Number of Number of Date Fishermen Chinook Average

08 02 18 05 05 00 02 58 92 62 72 72 42 28 52 60 62 20 47 50 35 25 15

June 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Totals

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 4 4 4

4

3 1 7 2 2 o 1

23 37 25 29 29 17 11 21 24 25

6 14 15 14 H~

6

322

~

39

---------------------- ---------- --------------------------------------

----------------------------------------------------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983

Daily Proportion Cumu1 Prop Date South North Total of Total Cumulative of Total

64 7 23 30 1313131 313 013131 65 44 187 231 00137 261 01308 66 12 162 174 01305 435 01313 67 8 283 291 1313139 726 01322 68 0000 726 13022 69 3 221 224 013137 950 13029 610 26 245 271 131308 1221 13037 611 56 254 310 131310 1531 131347 612 44 736 780 013 24 2311 13071 613 64 1188 1252 01339 3563 01113 614 59 1752 1811 0056 5374 0166 615 97 844 941 01329 6315 0195 616 165 729 894 0028 7209 0223 617 151 i 604 1755 0054 8964 middot 0277 618 i ll 1524 1635 0051 10599 13328 619 175 2000 2175 0067 12774 13395 620 171 21320 2191 0068 14965 0463 621 220 1613 1833 0057 16798 0520 622 199 2065 2264 0070 19062 0590 623 362 21334 2396 0074 21458 13664 624 876 3403 4279 13133 25737 0797 625 1244 2023 3267- 0101 29004 0898 626 738 1601 2339 0073 31343 0971 627 573 3265 3838 0119 35181 1090 628 547 1868 2415 0075 37596 1165 629 528 4028 4556 0141 42152 1306 630 430 430 0013 42582 1319 71 240 240 01307 42822 1326 72 201 975 1176 0036 43998 1362 73 309 8842 9151 0284 53149 1646 74 475 6385 6860 0213 60009 1859 75 565 3342 3907 0121 63916 1980 76 1377 2094 3471 0108 67387 2088 77 1416 3173 4589 0142 71976 2230 78 1472 1420 2892 0090 74868 2320 79 2071 1452 3523 01113 78391 2430 710 3318 2434 5752 0178 84143 2608 711 2673 2866 5539 13172 89682 2780 712 1665 1747 3412 13106 93094 2886 713 21317 1951 3968 13123 97062 3009 714 2991 2664 5655 0175 102717 3184 715 2646 2548 5194 13161 107911 3345 716 2488 2886 5374 0167 113285 3512 717 1585 4063 5648 0175 118933 3687 718 3559 9326 12885 0400 131818 4087 719 2948 2398 5346 13166 137164 4253 720 1640 3330 4970 0154 142134 4407 721 2416 6420 8836 0274 150970 4681 722 3298 3298 0102 154268 4783 723 5007 5007 0155 159275 4938

40

--------------------------------------------------------------------

--------------------------------------------------------------------

-----------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983 (Continued)

Daily Proportion Cum Prop Date South North Total of Total Cumu1at i ve of Total

724 4005 7804 11809 0366 171084 5304 725 2453 3392 5845 0181 176929 5485 726 2166 12094 14260 0442 191189 5927 727 1914 4472 6386 0198 197575 6125 728 1603 3463 5066 0157 202641 6282 729 1251 1914 3165 0098 205806 6380 730 1710 2495 4205 en30 210011 6510 731 2542 1887 4429 0137 214440 6647 81 4479 2271 6750 0209 221190 6856 82 1103 1806 2909 0091 224099 6947 83 1719 942 2661 0083 226760 bull 7030 84 1519 2557 4076 0126 230836 7156 85 1259 1113 2372 0074 233208 7230 86 940 2189 3129 0097 236337 7327 87 1467 4354 5821 0180 242158 7507 88 2318 1584 3902 0121 246060 7628 89 2098 1505 3603 0112 249663 7740 810 2629 1517 4146 bull 0129 253809 7869 811 3753 1091 4844 0150 258653 8019 812 1489 523 2012 0062 260665 8081 813 744 353 1097 0034 261762 8386 814 981 981 bull 0030 262743 8145 815 2324 2324 0072 265067 8217 816 2638 2638 0082 267705 8299 817 2073 731 2804 0087 270509 8115 818 2244 675 2919 0091 273428 8477 819 3240 696 3936 0122 277364 8599 820 2363 503 2866 0089 280230 8688 821 6789 1111 7900 0245 288130 8933 822 6489 563 7052 0219 295182 9152 823 5077 298 5375 0167 300557 9319 824 2616 298 2914 0090 303471 9409 825 3933 412 4345 0135 307816 9544 826 1393 554 1947 0060 309763 9604 827 1203 463 1666 0052 311429 9656 828 1197 542 1739 0054 313168 9710 829 1244 221 1465 0045 314633 9755 830 1011 199 1210 0038 315843 9793 831 718 214 932 0029 316775 9822 91 1324 318 1642 0052 318417 9874 92 1362 307 1669 0052 320086 9926 93 1146 314 1460 0045 321546 9971 94 652 296 948 bull 0029 322494 10000

148465 174029 322494 10000

41

----------------------------------------------------------------------

-------------------------------------------------------------------- --

------

TABLE 3A Unalakleet River Species Apportionment by Test Period King Salmon 1983

3-Day App Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 76 0272 76 0272

69-612N 28 0100 104 0372

612N-615 461 1652 565 2024

616-619N 419 1502 984 3526

619N-622 170 0609 1154 4135

623-626N 722 2588 1876 6723

626N-629 264 0946 2140 7669

630-73N 103 0639 2243 8038

73N-76 188 0674 2431 8712

77-710N 0 0000 2431 8712

710N-713 0 0000 2431 8712

714-717N 267 0957 2698 9969

717N-720 0 0000 2698 9669

721-724N 92 0331 2790 1 0000

724N-727 0 0000 2790 10000

728-731N 0 0000 2790 1 0000

731N-83 0 0000 2790 1 0000

2790 10000

42

Dates

714-717N

717N-720

721-724N

724N-727

728-731N

731N-83

84-87N

87N-810

811-814N

814N-817

818-821N

821N-824

825-828N

828N-831

91-94

TABLE 3B Unalakleet River Species Apportionment by Test Period Coho Salmon

3-Day Count

583

338

436

550

2650

1174

793

1435

5074

1280

435

2265

171H3

1983

Proportion of Season Total

0000

0000

0000

0343

0199

0256

0323

1558

0690

0466

0843

2983

0752

0256

1331

Cumulative Count

583

921

1357

1907

4557

5731

6524

7959

13033

14313

14748

17013

Cumulative Proportion

0000

0000

0000

0343

0542

0798

1121

2679

3369

3835

4678

7661

8413

8669

10000

43

------------------------------------------------------------------

------------------------------------------------------------------

----- ------

TABLE 3C Unalakleet River Species Apportionment by Test Period Pink Salmon 1983

3-Day P roport ion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 0 0000

6l2N-615 0 0000

616-6l9N 97 0012

6l9N-622 332 0036

623-626N 1245 0136

626N-629 6624 0721

630-73N 3699 0403

73N-76 10762 1171

77-7l0N 7704 0838

710N-7l3 8529 0928

714-717N 9771 1063

717N-720 13845 1507

721-724N 11361 1236

724N-727 6544 0712

728-731N 3545 0386

731N-83 1628 0177

84-87N 1224 0133

87N-810 1777 0193

811-814N 802 0087

814N-817 561 0061

818-821N 533 0058

821N-824 8313 13091

825-828N 468 0051

828N-831 0 0000

91-94 0 0000

91881 10000

0 0000

0 0000

0 0000

97 0012

429 0048

1674 0184

8298 0905

11997 1308

22759 2479

30463 3317

38992 4245

48763 5308

62608 6815

73969 8051

80513 8763

84058 9149

85686 9326

86910 9459

88687 9652

89489 9739

90050 9800

90583 9858

91413 9949

91881 10000

91881 10000

91881 1 0000 44

------------------------------------------------------------------

------------ ------------------------------------------------------

----- ------

TABLE 3D Unalakleet River Species Apportionment by Test Period Chum Salmon 1983

3-Day Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 100 0017

612N-615 268 0046

616-619N 838 0144

619N-622 1180 0202

623-626N 2744 0471

626N-629 1569 0270

630-73N 796 0137

73N-76 2972 0510

77-710N 2068 0355

710N-713 2622 0450

714-717N 4133 0710

717N-720 5596 0960

721-724N 4978 0854

724N-727 8974 1540

728-731N 2241 0385

731N-83 2079 ~0357

84-87N 3009 0516

87N-810 2432 0417

811-814N 937 0161

814N-817 454 0078

818-821N 2584 0443

821N-824 2739 0470

825-828N 1783 0306

828N-831 765 0131

91-94 412 0070

58273 10000 45

0 0000

100 0017

368 0063

1206 0207

2386 0409

5130 0880

6699 1150

7495 1287 f

10467 1797

12535 2152

15157 2602

19290 3312

24886 4272

29864 5216

38838 6666

41079 7051

43158 7408

46167 7924

48559 8341

49536 8502

49990 8580

52574 9023

55313 9493

57096 9799

57861 9930

58273 1 0000

-------------------------------------------------------------

------------------------- ------------------------------------

TABLE 4 Unalakleet River Test Net Proportions by Sample Perio-d 1983 ( Selective CPUE)

Dates Chinook Coho Pink Chum Misc

64-68 105 00 00 895

69-612N 24 00 83 893

612N-615 1C~ 5 00 61 834

616-619N 78 18 156 748

619N-622 23 45 160 772

623-626N 65 112 247 576

626N-629 22 553 131 294

630-73N 16 576 124 284

73N-76 10 572 158 260

77-710N 00 555 149 296

710N-713 00 540 166 294

714-717N 14 00 513 217 256

717N-720 00 00 532 215 253

721-724N 04 00 493 216 287

724N-727 00 18 202 277 503

728-731N 00 23 242 153 582

731N-83 00 30 112 143 715

84-87N 44 98 241 617

87N-810 182 122 167 529

811-814N 139 95 111 655

814N-B17 96 68 55 7B1

B18-B21N 105 39 1B9 667

821N-824 263 43 142 552

825-B28N 145 53 202 600

828N-831 97 00 171 732

91-94 396 00 72 532

46

--------

--------

TABLE 4 Una1ak1et River Test Net Proportions 1983 ( Selective CPUE) (Continued)

Comparative Apportionment

Species Apportionment

Chinook 2790 Coho 17013 Pink 91881 Churn 58273

------shySubtotal 169957

Misc Species 152537 ------shy

Total 322494

Substrate Comparison -------------------shy

Bank Counts -----shy

South 148465 North 174029

------shy

Total 322494

Percent of Total Counts

09 53

285 181

5408

472

1000

Percent

460 540

1000

47

-------------------------------------------------------------------

TABLE 5A Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

May 27 28

21 5 482

13 13

1313

1313 21 5 697

13 13

1313

1313 30 240 0 013 937 0 00 31 246 2 41 1183 2 08

June 1 237 0 00 1420 2 07 2 3

256 585

13 13

013 bull 13 13

1676 2 261

2 2

6bull 13 4

5 6 8

160 120 middot 125

13 1

13 42 130

2 421 2541 2666

~ 2 3 3

bull 13 4 136 136

9 122 0 130 2788 3 05 11 117 00 2905 3 05 12 126 13 00 3031 3 05 13 117 1 43 3148 4 06 15 118 0 013 3266 4 136 16 116 1 43 3382 5 138 18 240 13 130 3622 5 07 19 121 0 00 3743 5 07 20 116 0 00 3859 5 136 22 118 1 42 3977 6 138 23 119 1 42 4196 7 08 25 240 0 013 4336 7 138 26 119 13 1313 4455 7 138 27 119 13 1313 4574 7 138 29 1213 13 130 4694 7 137 313 1213 13 00 4814 7 07

July 2 238 0 1313 51352 7 07 3 118 13 013 51713 7 07 4 118 1 42 5288 8 138 6 122 0 00 5410 8 07 7 116 13 00 5526 8 07

10 126 0 1313 5652 8 07 11 119 0 013 5771 8 07 13 116 13 130 5887 8 07 14 119 2 84 6006 10 07 17 122 0 00 6128 10 07 18 112 0 1313 6240 10 136 20 119 13 00 6359 10 06 21 112 0 013 6471 10 06

6471 10

48

------------------------------------------------------------------

------------------------------------------------------------------

TABLE 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983

Cum Cum Date Hours Catch CPUE Hours Catch CPUE

July 24 26

115 120 0 00

115 235

0 0

00

00 27 117 4 00 352 0 00 29 117 0 137 469 4 34 31 116 3 103 585 7 48

August 2 122 0 00 706 7 40 3 122 2 66 828 9 43 5 118 1 34 946 10 42 7 128 14 437 1074 24 89 9 257 14 218 1331 38 114

10 125 21 672 1456 59 162 12 13 middot- 0 00 1469 x 59 161 14 10 7 12 449 1576 71 180 16 122 2 66 1698 73 172 17 123 6 196 1821 79 174 19 118 1 34 1939 80 165 21 112 6 214 2051 86 168 23 120 3 100 217 1 89 164 24 115 2 70 2286 91 159 26 115 5 174 2401 96 160 28 119 0 00 2520 96 152 30 119 4 1 34 2639 100 152 31 117 1 34 2756 101 147

Sept 2 123 5 33 2879 106 147 4 479 15 125 3358 121 144 6 238 11 185 3596 132 147 7 237 5 84 3833 137 143 8 238 6 1 01 4071 143 141 9 242 10 1 65 4313 153 142

10 242 3 50 4555 156 137 11 242 2 33 4797 158 132 12 241 8 133 5038 166 132 14 227 14 247 5265 180 137 15 242 9 149 5507 189 137 16 210 3 57 5717 192 134 17 239 2 33 5956 194 130 18 230 2 35 6186 196 127 20 489 4 33 6675 200 120 21 24 3 50 6915 203 117 22 242 0 00 7157 203 113 23 234 1 17 7391 204 110

----shy

7391 204

Mesh size = 5 14 from 724 to 810

49

------------------------------------------------------------------

TABLE 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE ------~-----------------------------------------------------------June 16 122 1 33 122 1 33

17 118 0 bull 0 0 240 1 17 20 120 2 67 360 3 33 21 118 0 00 478 3 25 23 119 2 67 597 5 34 24 119 3 102 716 8 45 27 116 19 655 832 27 130 28 120 22 733 952 49 206 30 120 40 1333 1072 89 332

July 1 115 36 1252 1187 125 421 4 122 30 983 1309 155 474 5 114 47 1649 1423 202 568 7 118 30 1016 1541 232 602 8 120 shy 24 800 1661 -$ 256 616

11 122 42 1377 1783 298 669 12 120 29 967 1903 327 687 14 116 37 1276 2019 364 721 15 118 40 1356 2137 404 756 18 121 60 1976 2258 464 822 19 119 30 740 2377 494 831 21 125 61 1952 2502 555 887 22 118 25 847 2627 580 883 25 122 16 525 2749 596 867 26 116 15 517 2865 611 853 28 122 28 918 2987 639 856 29 117 11 376 3104 650 838

August 1 120 7 233 3224 657 815 2 119 9 303 3345 666 796 4 120 3 100 3465 669 772 5 118 5 170 3583 674 752 8 114 7 245 3697 681 734

11 123 7 337 3 82 0 688 720 15 118 2 68 3938 690 701 16 113 5 177 4051 695 686 18 98 3 122 4149 698 673 19 119 1 34 4268 699 655 22 112 0 00 4380 699 638 23 115 0 00 4495 699 622 25 120 2 66 4615 701 606 26 112 1 36 4727 702 594 29 116 0 00 4843 702 580 30 11 5 0 00 4958 702 566

Sept 1 115 0 00 5079 702 553 2 112 0 00 5191 702 541

----shy5079 702

50

-----------------------------------------------------------------

------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

June 5 73 0 00 73 0 00 7 126 0 00 199 0 00 8 127 0 00 326 0 bull 0 0

10 11 4 3 105 440 3 27 12 113 2 71 553 5 36 14 119 1 34 672 6 36 15 116 4 138 788 10 51 17 116 3 103 904 13 56 19 118 6 203 1022 19 74 21 118 0 00 1140 19 67 22 117 10 342 1257 29 92 24 116 3 103 1373 32 93 26 119 11 370 1492 43 115 28 11 8 6 203 1610 $ 49 122 29 115 13 452 1725 62 144

July 1 119 8 269 1844 70 152 3 119 17 571 1963 87 177 5 119 13 437 2082 100 192 6 12 0 17 567 2202 117 213 8 121 7 231 2323 124 214

10 11 4 18 632 2437 142 233 12 115 12 417 2552 154 241 13 116 37 1276 2668 191 286 15 117 16 547 2785 207 297 17 11 8 31 1051 290 3 238 328 19 118 18 610 3021 256 339 20 115 29 1009 3136 285 364 22 122 17 557 3258 302 371 24 115 24 835 3373 326 387 26 120 19 633 3493 345 395 27 117 11 376 3610 356 394 29 117 14 479 3727 370 397 31 116 18 621 3843 388 404

August 2 121 9 298 3964 397 401 3 122 17 557 4086 414 405 5 11 8 8 271 4204 422 402 7 128 19 594 4332 441 407 9 257 10 156 4589 451 393

10 125 14 448 4714 464 394 12 13 1 308 4727 465 393 14 107 5 187 4834 470 389 16 122 4 131 4956 474 383 17 123 15 488 5079 489 385 19 118 8 271 5197 497 383 21 112 3 107 5309 500 378 23 120 6 200 5429 506 373 24 115 7 243 5544 513 370

51

-----------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 (Continued)

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

August 26 115 5 174 5657 518 366 28 119 1 34 577 6 519 359 30 119 4 134 5895 523 355 31 117 0 00 6012 523 3 48

Sept 2 123 3 98 613 5 526 343 4 479 2 17 6614 528 319 6 238 1 17 6852 529 309 7 237 0 00 7089 529 298 8 9

238 242

1 2

17

33 7327 7569

clt

530 532

289 281

10 242 3 50 7811 535 274 11 242 0 00 8053 535 266 12 241 2 33 8294 537 259 14 227 3 53 8521 540 253 15 242 0 00 8763 540 246 16 210 1 19 8973 541 241 17 239 2 33 9212 543 236 18 230 0 00 9442 543 230 20 489 0 00 9931 543 219 21 240 2 33 10171 545 214 22 242 0 0 10413 545 209 23 234 0 00 10647 545 205

----shy

10647 545

52

------------------------------------------------------------------------

------

TABLE 6A Unalakleet River Sonar Site Drift Sets5 1 4n Me sh 19 83 bull

Date Time Result

July 19 1405-1413 1 burbot July 23 1040-1055 1 pink caracass July 27 1520-1530 1 coho August 3 1444-1501 4 coho August 22 1930-1937 0 August 23 937-943 1 coho 1 pink carcass August 26 1117-1127 1 coho 3 churn August 31 1018-1034 3 churn

TABLE 6B Unalakleet River Sonar Site Beach Seines 1983

Date Time Distance Result

July 20 1445 120 meters 4 pink 1 churn 13 Dolly Varden 1 whitefish

July 25 1500 120 meters 6 pink 1 churn 1 Dolly Varden 4 whitefish 1 grayling

July 28 1700 120 meters 4 coho 2 pink 2 churn 1 Dolly Varden

August 1 2010 300 meters 4 pink 3 churn 8 Dolly Varden

August 4 1015 130 meters 5 coho 3 pink 3 churn 65 Dolly Varden 3 whitefish 3 grayling

August 24 1110 130 meters 18 coho 2 Dolly Varden 2 grayling

August 29 1715 120 meters 11 coho 1 pink 69 churn 1 Dolly Varden 2 grayling

Seine done at mile 12 Unalakleet River

53

--------------------------------------------------------------------------------------------------

--------------------------------------------------------------------------------------------------

TABLE 7 AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER CATCH SAMPLE SPORT CATCH AND SPAWNING SURVEYS 1983

II

COMBINED 3-2 4-2 4-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 31 646 6702 5 104 5010 8 167 5688 1 21 5900

Female 17 354 8540 o o 1 21 5450 o o

Total 48 1000 7353 5 104 5010 9 188 5661 1 21 5900

~ 11)

5-2 6-2 7-2 7-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 11 229 7382 6 125 8350 0 0 0 0

Female 2 42 7925 12 250 8742 1 21 10650 1 21 8350

Total 13 271 7465 18 375 8611 1 21 10650 1 21 8350

TABLE 8A AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER TEST NET SAMPLE 1983

-----~-------------------------------------------------------------------------------------------------------

gt

COMBINED 4-2 5-2 5-3 6-2 7-2 NO LENGIH NO LENGIH NO LENGIH NO LENGTH NO LENGTH NO LENGTr

8 14 n

Male 3 333 8107 0 1 111 5800 o 0 2 222 9260 0 0 Female 6 667 8295 0 0 1 111 7600 o o 4 444 8310 1 111 8930 Total 9 10 e 0 8232 0 o 2 222 6700 o o 6 667 8627 1 111 8930

If) If)

5 14 Male 19 1000 6298 12 632 5392 4 211 6990 0 o 3 158 8997 0 0 Female o 0 o o o o o o 0 0 0 0 Total 19 1000 6298 12 632 5392 4 211 6990 o o 3 158 8997 0 0

4 n or Smaller Male 6 667 5930 1 111 4660 2 222 6325 3 333 6090 0 o 0 o Female 3 333 8970 o o o o o o 3 333 8970 0 o Total 9 1000 6943 1 111 466 2 222 6325 3 33 3 6090 3 33 3 8970 0 0

TOTAL Hale 28 757 6413 13 351 5336 7 189 6630 3 8 1 6090 5 13 5 9102 o 0 Female 9 243 852 o o 1 27 7600 o o 7 189 8593 1 2 7 8930 Total 37 1000 6925 13 351 5336 8 216 6751 3 8 1 6090 12 324 88 e 5 1 2 7 8930

---------------------------------------------------------------------------------------------------------

---------------------------------------------------------------------------------------------------------

TABLE 8B AGE SEX AND SIZE COMPOSITION OF NORTON SOUND COHO SALMON UNALAKLEET RIVER TEST NET SAMPLE 5 14 AND 5 78 GEAR 1983

COMBINED 3-2 4-3 4-4 5-4 NO LENGIH NO LENGIH NO LENGTH NO LENGIH NO LENGTH

Male 9 900 5489 0 0 9 900 5489 0 0 Female 1 10 bull 0 552 QJ QJ 0 1 10QJ 5520 0 0 Total 10 1000 5492 0 0 10 1000 5492 0 0 725-731

bull LI)Male 15 938 5645 15 938 5645 Female 1 62 575 QJ 1 62 575 QJ Total 16 lQJ0QJ 5651 16 100QJ 5651 81-87

Male 24 545 5668 23 523 5768 1 23 3350 Female 20 455 5631 20 455 5631 0 0 Total 441QJ0QJ 5651 43 977 57 QJ 4 1 23 335 QJ 88-814

Male 7 500 5797 7 500 5797 QJ 0 Female 7 500 5596 6 429 5587 1 71 5650 Total 14 1000 5696 13 929 1 71 5650570 815-821

Male 5 455 5492 5 455 5492 Female 6 545 5552 6 545 5552 Total 11 lQJ00 5525 11 100QJ 5525 822-828

during the latter half of each respective migration Pink salmon presented the worst problem and churn the least Unfortunately milling pinks invalidated the churn count since the two runs overlap Coho salmon exhibited some milling but an accurate evaluation of this problem was hampered by turbid water Milling coho became a problem after August 20

The milling observed from the towers was not apparent to the observer at the oscilloscope because of the overwhelming number of spikes present at that stage of the salmon migration During 1982 when tower observations were not possible the oscilloscope appeared to have an extraordinary number of spikes The large pink salmon count recorded in 1982 may have been an artifact of milling behavior that was unobservable then Commercial catch and test net catch statistics indicate a large pink salmon run f However it is likely fish milling over the substrate exaggerated the sonar count although without tower observations it can not be proven

Another problem observed during the 1983 field season was avoidance of the substrate by all fish species This problem was at its worst when water was low and clear Angling the substrate slightly downstream as it was after July 15 helped considerably By extending the sonar beam periodically it was determined that as visibility decreased so did avoidance

Species apportionment of the sonar count was done using test net catches Some of the problems encountered with the sampling scheme should be pointed out Test nets were assumed to sample the same portion of the river as the sonar Since three net lengths were used this seemed suspect Different species migrate at different depths The non-salmon species tend to migrate in shallow water near shore and generally the larger species migrate in deeper water nearer mid-stream Since only a IS-fathom net of the most efficient type for non-salmon species was fished in the preferred habitat for these fish it is likely that the calculated efficiency was too high The other test nets were longer and also sampled some preferred areas for the targeted species

The opposite case is true for king salmon The 8 14 net is 20 fathoms longS fathoms shorter than the other nets used on this project This net does not cover all of the area preferred by king salmon This means king salmon

-12shy

escapement is probably underestimated but the 20 fathom net samples an area further out than the sonar counter even with its beam extended So the number of king salmon counted by the sonar is over estimated King salmon make up such a small percentage of the total salmon run that counting errors are more significant than this apportionment error

Very few churn and pink salmon were caught in the offshore end of the nets It is assumed these long nets had very little effect on the sonar count species apportionment

CONCLUSION

The feasibility of counting salmon in the Unalakleet River using side-scanning sonar is unlikely due to milling fish and the inal1ility to accurately apportion the sonar count to the various fish species It is possible that a partial escapement count could be made further up river above one or more of the major tributaries to the system The new north bank sonar site that showed some improvement over the former site had two differences that seemed to affect salmon migration The current was faster over the substrate at the second site and the river gravels were less ideal spawning habitat The new site was located below a rock bluff on the outside of a river bend

There are two similar sites up river about ten miles where the current is faster and the bottom is even less conducive to spawning During the 1984 field season a comparison of the smoother running south bank site and these up-river sites could be made The best time to do this would be during August when only coho salmon are migrating The counter should be operating by August 15 prior to milling activity and maintained for a week to evaluate if milling salmon became apparent later after the migration peaked The south bank site could be used as a control for comparison to 1983

-13shy

I I

5 1 2

Miles No tt h _

shy

R Iv er

Figure 1 Unalakleet Escapement Project

lt

Son sr

Fig u r e 2 S 0 0 a r Sit eSc hem a tic

ITower

Original Ninth Bank Sonar

Drift sets 5 minutes

Lf)

So t h Ban k Son a

lTower

o Work Tent

B Living Quarters

Figure 3Unalakleet Subsistence Survey 1983

Kin g- S a I m 0 n

1bull

10

9

c 8aI

-lE 11 t a til 7 ~ II 6 ~ U

5 til

0

c 4 til til

E 3 I

1 V

~ 2

1

27 1 5 10 15 20 25 30

~ June

Figure 4A Specie apportionment king salmon Un-alakleet sonar 1983

~

25

-l20

c 1 5 III () III

11

10

5

I

J

27 31 5 10 15 20 25 30 5 10 15 20 25 31

June Ju Iy

Figure 4B Specie middotapp~~tionment coho salmon Unalakleet sonar 1983

30

25

co ~

20

1 t~

C $

u 1 5 CD a

10

5

5 10 15 20 25 31 5 10 15 20 25 31 5

Ju August Sept e

Figure 4C Specie apportionment pink salmon Unalakleet sonar 1983

1 6

1 5

14

1 3

12

1 1

c II U CII

Ashy

10

9

a

7

01 ~

6

5

4

3

2

1

1 5 10 1 5

June

2 O 25 30 5 10 15 20

Ju Iy

25 31 5 10 15 20

August

25 31 5 10

Septem

Figure 40 Species apportionment chum salmon Unalakleet sonar 1983

16

1 5

1 4

13

1 2

1 1

10

9 c 8GI U

GI middot7 A

6

5

4

3

2

1

~

o N

~

1 5 10 15 20 25 30 5 10 15 20 25 3 1 5 10 15 20 25 31 5 10

June Ju Iy August Sept e

Figure 5 Specie apportionment Unalakleet sonar 1983

50

4

40

35

c J 30 0 U

~ 0 25 0 c Q)

u ~

Q) 20a

15

10

5

o L-_lt---__

King Coho Pink Chum Misc

21

----

Figure 6 Sector distribution of counts Unalakleet sonar1983

35

30

25

c 20 G)

() G) 15

0

10

5

35

30

25 c G)

() 20

G)

0 15

10

5

( s ()u t h ban k )

July 3-5

~-2 4 6 8 1 0 1 2 1 4 1 6shy

Sector

August 21-23

2 4 6 8 10 12 14 16

Sector

22

Figure 7 Hourly distribution of counts Unalakleet sonar 1983

(south bank)

14

12

10

c 8 GI U ~

6

July 3-5

~GI

I =~ Q

4

2 0

2 4 6 8 10 12 14 1 6 18 20 22 24

TIme

9

8

7

6

5 c GI U ~ 4 GI

Q

3

2

August 21-23

1

0

2 4 6 8 10 12 14

TIme

16

23

18 20 22 24

Figure 8 Unalakleet River Test Fishing Daily King CPUE in 8 14 mesh 1983

10

9 N

8 shy

7 I 0 c 6E

n

l J I I

0 0 5 c (J 4 co 0

3

2

1

I I

27 1 5 10 15 20 25 1 5 10 15 20 25 31

~ June July

Figure 9 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1983bull

~

middot10

09 U N

I 08 0 c 07E I ()

- 06 E-0 0 05 shy~ () 04 ca - ()

03E I 0 02

01

27 1 5 10 15 2Q 25 1 5 10 15 20 25 31

June July

Figure 10 Unalakleet River Test Fishing Daily Coho CPUE in 5 78 mesh 1983

1

6

5

I 0

NI II I 0 t

E 4

0 0 c 3() cu 0

2

1

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sept U

Figure 11 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1983

200

175

150

I 0 c 125E I ()

E

r-shy-0 I I N 0 100 c ()-as ()

75E I 0

50

25

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sel ber

20

Figure 12 Unalakleet River Test Fishing Daily Pink CPUE in 4 mesh 1983

18

I

0) N

II

16

I ishy

14 J 0 t 12shyE 0 10 0 shys 8 () as

0 6 1 I V 4

2

~ I

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

--

Figure 13 Unalakleet River Test Fishing Cumulat ive Pink CPUE in 4 mesh 1983

10

9 01 N 8

J 0 J 7 E J 0 6 E- 50 ~

amp 4() ca

0 3 E J

0 2

1

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

Figure 14 Unalakleet River Test Fishing Daily CPUE in 5 14 amp 5 78 mesh 1983

14

13shy

12

11

10

9 J 0 8

I z shy-E 7 0 0 shys ~u aI 0

4 I

31

2

1

II

0 C1)I 11

I I I II

bull y AA(net changed to 5 78

AA A 11 I

~ I~ V ~

- I

VI

1 5 10 15 20- 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

cJune July August

Figure 15 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 14 amp 5 78 mesh 1983

It

5

--l C)

net changed to 5 78

~ 4 o

c E (J ~

3E o o c 2 u ~ -(J

E ~ (J 1

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 16 Unalakleet River Test Fishing Catch Proportions 1983

60

55

---- King50

__ Coho 45

P--Q Pink

40 __ Chum

I LU 35J D I 0

30 ICQ 0 25 I

N Cl0 20

c G)

15u G)

D

10

5 A 1 I

I 4 I

I I

3 lt

~

2

I I1 - I bull I

I ~ ~ ~ t -J ~~ - _

r

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 17 Unalakleet Area Temperatures 1983

18

16

14

12

til 10I

u-G) 80 CI) G) G) 6 C) G)

Q 4

2

C) C)

__ Air

0--0 River 2

0

-2

-4

---------~ ~

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August 5e

4

Figure 18 Unalakleet River Turbidity and Depth 1983

__ Secchi Reading

-t ()

II) G)-G)

3

iE 2

1

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August

~ 1 _ ~ r--- I shy I __ I 01 --shy

Figure 19 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1981-83

27 31 5

May

_1981

____ 1982

o 0 1983 11) C)

Changed to 5 78 mesh

I

t

~-~o-~ Q-O--Oolt)-(IQ-----l

--1

_10 15 20 25 30 5 10 15 20 25 31

June July

I I I

~

0 ~

r E ~

CJ shyE 0 0 I

shyr u-cu CJ

E ~

CJ

4

35

30

25

20

15

10

05

Figure 20 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 78 mesh 1981-83

5

4 lI 0

z

E lI 0 3 E-0 0 2 r CJ-cu 0

E lI 1 0

__1981 ~~

~ ___1982

a 01983 5 148 mesh from 65-810

_----shy-- 0 - -- C1) A - _ - ~

~ I

I

II I I I I I

I I

1

~ -

-

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 21 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 mesh- 1981-83

8

70

60

50

40 0

r 30E

0 20E-0 0 10 s= u 8 tV 0 6E 0 4

2

__1981 ____ 1982

_1983

shy--- -- shy--- shy J - -

I

I

C1- J

I

-----l---l ~--~r---------------r--

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 22 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1981-83

_1981

~ __ 1982

~1983

25

00I _ __ _ _ C)~ I __ _ I

I V o 20 rt I I

E I AshyI o E 15-o o z u 10 tU o E I o 5

I

1 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

July August 5

----------------------------------------------------------------

Table 1 Unalakleet River Subsistence King Salmon Index 1983

Number of Number of Date Fishermen Chinook Average

08 02 18 05 05 00 02 58 92 62 72 72 42 28 52 60 62 20 47 50 35 25 15

June 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Totals

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 4 4 4

4

3 1 7 2 2 o 1

23 37 25 29 29 17 11 21 24 25

6 14 15 14 H~

6

322

~

39

---------------------- ---------- --------------------------------------

----------------------------------------------------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983

Daily Proportion Cumu1 Prop Date South North Total of Total Cumulative of Total

64 7 23 30 1313131 313 013131 65 44 187 231 00137 261 01308 66 12 162 174 01305 435 01313 67 8 283 291 1313139 726 01322 68 0000 726 13022 69 3 221 224 013137 950 13029 610 26 245 271 131308 1221 13037 611 56 254 310 131310 1531 131347 612 44 736 780 013 24 2311 13071 613 64 1188 1252 01339 3563 01113 614 59 1752 1811 0056 5374 0166 615 97 844 941 01329 6315 0195 616 165 729 894 0028 7209 0223 617 151 i 604 1755 0054 8964 middot 0277 618 i ll 1524 1635 0051 10599 13328 619 175 2000 2175 0067 12774 13395 620 171 21320 2191 0068 14965 0463 621 220 1613 1833 0057 16798 0520 622 199 2065 2264 0070 19062 0590 623 362 21334 2396 0074 21458 13664 624 876 3403 4279 13133 25737 0797 625 1244 2023 3267- 0101 29004 0898 626 738 1601 2339 0073 31343 0971 627 573 3265 3838 0119 35181 1090 628 547 1868 2415 0075 37596 1165 629 528 4028 4556 0141 42152 1306 630 430 430 0013 42582 1319 71 240 240 01307 42822 1326 72 201 975 1176 0036 43998 1362 73 309 8842 9151 0284 53149 1646 74 475 6385 6860 0213 60009 1859 75 565 3342 3907 0121 63916 1980 76 1377 2094 3471 0108 67387 2088 77 1416 3173 4589 0142 71976 2230 78 1472 1420 2892 0090 74868 2320 79 2071 1452 3523 01113 78391 2430 710 3318 2434 5752 0178 84143 2608 711 2673 2866 5539 13172 89682 2780 712 1665 1747 3412 13106 93094 2886 713 21317 1951 3968 13123 97062 3009 714 2991 2664 5655 0175 102717 3184 715 2646 2548 5194 13161 107911 3345 716 2488 2886 5374 0167 113285 3512 717 1585 4063 5648 0175 118933 3687 718 3559 9326 12885 0400 131818 4087 719 2948 2398 5346 13166 137164 4253 720 1640 3330 4970 0154 142134 4407 721 2416 6420 8836 0274 150970 4681 722 3298 3298 0102 154268 4783 723 5007 5007 0155 159275 4938

40

--------------------------------------------------------------------

--------------------------------------------------------------------

-----------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983 (Continued)

Daily Proportion Cum Prop Date South North Total of Total Cumu1at i ve of Total

724 4005 7804 11809 0366 171084 5304 725 2453 3392 5845 0181 176929 5485 726 2166 12094 14260 0442 191189 5927 727 1914 4472 6386 0198 197575 6125 728 1603 3463 5066 0157 202641 6282 729 1251 1914 3165 0098 205806 6380 730 1710 2495 4205 en30 210011 6510 731 2542 1887 4429 0137 214440 6647 81 4479 2271 6750 0209 221190 6856 82 1103 1806 2909 0091 224099 6947 83 1719 942 2661 0083 226760 bull 7030 84 1519 2557 4076 0126 230836 7156 85 1259 1113 2372 0074 233208 7230 86 940 2189 3129 0097 236337 7327 87 1467 4354 5821 0180 242158 7507 88 2318 1584 3902 0121 246060 7628 89 2098 1505 3603 0112 249663 7740 810 2629 1517 4146 bull 0129 253809 7869 811 3753 1091 4844 0150 258653 8019 812 1489 523 2012 0062 260665 8081 813 744 353 1097 0034 261762 8386 814 981 981 bull 0030 262743 8145 815 2324 2324 0072 265067 8217 816 2638 2638 0082 267705 8299 817 2073 731 2804 0087 270509 8115 818 2244 675 2919 0091 273428 8477 819 3240 696 3936 0122 277364 8599 820 2363 503 2866 0089 280230 8688 821 6789 1111 7900 0245 288130 8933 822 6489 563 7052 0219 295182 9152 823 5077 298 5375 0167 300557 9319 824 2616 298 2914 0090 303471 9409 825 3933 412 4345 0135 307816 9544 826 1393 554 1947 0060 309763 9604 827 1203 463 1666 0052 311429 9656 828 1197 542 1739 0054 313168 9710 829 1244 221 1465 0045 314633 9755 830 1011 199 1210 0038 315843 9793 831 718 214 932 0029 316775 9822 91 1324 318 1642 0052 318417 9874 92 1362 307 1669 0052 320086 9926 93 1146 314 1460 0045 321546 9971 94 652 296 948 bull 0029 322494 10000

148465 174029 322494 10000

41

----------------------------------------------------------------------

-------------------------------------------------------------------- --

------

TABLE 3A Unalakleet River Species Apportionment by Test Period King Salmon 1983

3-Day App Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 76 0272 76 0272

69-612N 28 0100 104 0372

612N-615 461 1652 565 2024

616-619N 419 1502 984 3526

619N-622 170 0609 1154 4135

623-626N 722 2588 1876 6723

626N-629 264 0946 2140 7669

630-73N 103 0639 2243 8038

73N-76 188 0674 2431 8712

77-710N 0 0000 2431 8712

710N-713 0 0000 2431 8712

714-717N 267 0957 2698 9969

717N-720 0 0000 2698 9669

721-724N 92 0331 2790 1 0000

724N-727 0 0000 2790 10000

728-731N 0 0000 2790 1 0000

731N-83 0 0000 2790 1 0000

2790 10000

42

Dates

714-717N

717N-720

721-724N

724N-727

728-731N

731N-83

84-87N

87N-810

811-814N

814N-817

818-821N

821N-824

825-828N

828N-831

91-94

TABLE 3B Unalakleet River Species Apportionment by Test Period Coho Salmon

3-Day Count

583

338

436

550

2650

1174

793

1435

5074

1280

435

2265

171H3

1983

Proportion of Season Total

0000

0000

0000

0343

0199

0256

0323

1558

0690

0466

0843

2983

0752

0256

1331

Cumulative Count

583

921

1357

1907

4557

5731

6524

7959

13033

14313

14748

17013

Cumulative Proportion

0000

0000

0000

0343

0542

0798

1121

2679

3369

3835

4678

7661

8413

8669

10000

43

------------------------------------------------------------------

------------------------------------------------------------------

----- ------

TABLE 3C Unalakleet River Species Apportionment by Test Period Pink Salmon 1983

3-Day P roport ion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 0 0000

6l2N-615 0 0000

616-6l9N 97 0012

6l9N-622 332 0036

623-626N 1245 0136

626N-629 6624 0721

630-73N 3699 0403

73N-76 10762 1171

77-7l0N 7704 0838

710N-7l3 8529 0928

714-717N 9771 1063

717N-720 13845 1507

721-724N 11361 1236

724N-727 6544 0712

728-731N 3545 0386

731N-83 1628 0177

84-87N 1224 0133

87N-810 1777 0193

811-814N 802 0087

814N-817 561 0061

818-821N 533 0058

821N-824 8313 13091

825-828N 468 0051

828N-831 0 0000

91-94 0 0000

91881 10000

0 0000

0 0000

0 0000

97 0012

429 0048

1674 0184

8298 0905

11997 1308

22759 2479

30463 3317

38992 4245

48763 5308

62608 6815

73969 8051

80513 8763

84058 9149

85686 9326

86910 9459

88687 9652

89489 9739

90050 9800

90583 9858

91413 9949

91881 10000

91881 10000

91881 1 0000 44

------------------------------------------------------------------

------------ ------------------------------------------------------

----- ------

TABLE 3D Unalakleet River Species Apportionment by Test Period Chum Salmon 1983

3-Day Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 100 0017

612N-615 268 0046

616-619N 838 0144

619N-622 1180 0202

623-626N 2744 0471

626N-629 1569 0270

630-73N 796 0137

73N-76 2972 0510

77-710N 2068 0355

710N-713 2622 0450

714-717N 4133 0710

717N-720 5596 0960

721-724N 4978 0854

724N-727 8974 1540

728-731N 2241 0385

731N-83 2079 ~0357

84-87N 3009 0516

87N-810 2432 0417

811-814N 937 0161

814N-817 454 0078

818-821N 2584 0443

821N-824 2739 0470

825-828N 1783 0306

828N-831 765 0131

91-94 412 0070

58273 10000 45

0 0000

100 0017

368 0063

1206 0207

2386 0409

5130 0880

6699 1150

7495 1287 f

10467 1797

12535 2152

15157 2602

19290 3312

24886 4272

29864 5216

38838 6666

41079 7051

43158 7408

46167 7924

48559 8341

49536 8502

49990 8580

52574 9023

55313 9493

57096 9799

57861 9930

58273 1 0000

-------------------------------------------------------------

------------------------- ------------------------------------

TABLE 4 Unalakleet River Test Net Proportions by Sample Perio-d 1983 ( Selective CPUE)

Dates Chinook Coho Pink Chum Misc

64-68 105 00 00 895

69-612N 24 00 83 893

612N-615 1C~ 5 00 61 834

616-619N 78 18 156 748

619N-622 23 45 160 772

623-626N 65 112 247 576

626N-629 22 553 131 294

630-73N 16 576 124 284

73N-76 10 572 158 260

77-710N 00 555 149 296

710N-713 00 540 166 294

714-717N 14 00 513 217 256

717N-720 00 00 532 215 253

721-724N 04 00 493 216 287

724N-727 00 18 202 277 503

728-731N 00 23 242 153 582

731N-83 00 30 112 143 715

84-87N 44 98 241 617

87N-810 182 122 167 529

811-814N 139 95 111 655

814N-B17 96 68 55 7B1

B18-B21N 105 39 1B9 667

821N-824 263 43 142 552

825-B28N 145 53 202 600

828N-831 97 00 171 732

91-94 396 00 72 532

46

--------

--------

TABLE 4 Una1ak1et River Test Net Proportions 1983 ( Selective CPUE) (Continued)

Comparative Apportionment

Species Apportionment

Chinook 2790 Coho 17013 Pink 91881 Churn 58273

------shySubtotal 169957

Misc Species 152537 ------shy

Total 322494

Substrate Comparison -------------------shy

Bank Counts -----shy

South 148465 North 174029

------shy

Total 322494

Percent of Total Counts

09 53

285 181

5408

472

1000

Percent

460 540

1000

47

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TABLE 5A Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

May 27 28

21 5 482

13 13

1313

1313 21 5 697

13 13

1313

1313 30 240 0 013 937 0 00 31 246 2 41 1183 2 08

June 1 237 0 00 1420 2 07 2 3

256 585

13 13

013 bull 13 13

1676 2 261

2 2

6bull 13 4

5 6 8

160 120 middot 125

13 1

13 42 130

2 421 2541 2666

~ 2 3 3

bull 13 4 136 136

9 122 0 130 2788 3 05 11 117 00 2905 3 05 12 126 13 00 3031 3 05 13 117 1 43 3148 4 06 15 118 0 013 3266 4 136 16 116 1 43 3382 5 138 18 240 13 130 3622 5 07 19 121 0 00 3743 5 07 20 116 0 00 3859 5 136 22 118 1 42 3977 6 138 23 119 1 42 4196 7 08 25 240 0 013 4336 7 138 26 119 13 1313 4455 7 138 27 119 13 1313 4574 7 138 29 1213 13 130 4694 7 137 313 1213 13 00 4814 7 07

July 2 238 0 1313 51352 7 07 3 118 13 013 51713 7 07 4 118 1 42 5288 8 138 6 122 0 00 5410 8 07 7 116 13 00 5526 8 07

10 126 0 1313 5652 8 07 11 119 0 013 5771 8 07 13 116 13 130 5887 8 07 14 119 2 84 6006 10 07 17 122 0 00 6128 10 07 18 112 0 1313 6240 10 136 20 119 13 00 6359 10 06 21 112 0 013 6471 10 06

6471 10

48

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TABLE 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983

Cum Cum Date Hours Catch CPUE Hours Catch CPUE

July 24 26

115 120 0 00

115 235

0 0

00

00 27 117 4 00 352 0 00 29 117 0 137 469 4 34 31 116 3 103 585 7 48

August 2 122 0 00 706 7 40 3 122 2 66 828 9 43 5 118 1 34 946 10 42 7 128 14 437 1074 24 89 9 257 14 218 1331 38 114

10 125 21 672 1456 59 162 12 13 middot- 0 00 1469 x 59 161 14 10 7 12 449 1576 71 180 16 122 2 66 1698 73 172 17 123 6 196 1821 79 174 19 118 1 34 1939 80 165 21 112 6 214 2051 86 168 23 120 3 100 217 1 89 164 24 115 2 70 2286 91 159 26 115 5 174 2401 96 160 28 119 0 00 2520 96 152 30 119 4 1 34 2639 100 152 31 117 1 34 2756 101 147

Sept 2 123 5 33 2879 106 147 4 479 15 125 3358 121 144 6 238 11 185 3596 132 147 7 237 5 84 3833 137 143 8 238 6 1 01 4071 143 141 9 242 10 1 65 4313 153 142

10 242 3 50 4555 156 137 11 242 2 33 4797 158 132 12 241 8 133 5038 166 132 14 227 14 247 5265 180 137 15 242 9 149 5507 189 137 16 210 3 57 5717 192 134 17 239 2 33 5956 194 130 18 230 2 35 6186 196 127 20 489 4 33 6675 200 120 21 24 3 50 6915 203 117 22 242 0 00 7157 203 113 23 234 1 17 7391 204 110

----shy

7391 204

Mesh size = 5 14 from 724 to 810

49

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TABLE 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE ------~-----------------------------------------------------------June 16 122 1 33 122 1 33

17 118 0 bull 0 0 240 1 17 20 120 2 67 360 3 33 21 118 0 00 478 3 25 23 119 2 67 597 5 34 24 119 3 102 716 8 45 27 116 19 655 832 27 130 28 120 22 733 952 49 206 30 120 40 1333 1072 89 332

July 1 115 36 1252 1187 125 421 4 122 30 983 1309 155 474 5 114 47 1649 1423 202 568 7 118 30 1016 1541 232 602 8 120 shy 24 800 1661 -$ 256 616

11 122 42 1377 1783 298 669 12 120 29 967 1903 327 687 14 116 37 1276 2019 364 721 15 118 40 1356 2137 404 756 18 121 60 1976 2258 464 822 19 119 30 740 2377 494 831 21 125 61 1952 2502 555 887 22 118 25 847 2627 580 883 25 122 16 525 2749 596 867 26 116 15 517 2865 611 853 28 122 28 918 2987 639 856 29 117 11 376 3104 650 838

August 1 120 7 233 3224 657 815 2 119 9 303 3345 666 796 4 120 3 100 3465 669 772 5 118 5 170 3583 674 752 8 114 7 245 3697 681 734

11 123 7 337 3 82 0 688 720 15 118 2 68 3938 690 701 16 113 5 177 4051 695 686 18 98 3 122 4149 698 673 19 119 1 34 4268 699 655 22 112 0 00 4380 699 638 23 115 0 00 4495 699 622 25 120 2 66 4615 701 606 26 112 1 36 4727 702 594 29 116 0 00 4843 702 580 30 11 5 0 00 4958 702 566

Sept 1 115 0 00 5079 702 553 2 112 0 00 5191 702 541

----shy5079 702

50

-----------------------------------------------------------------

------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

June 5 73 0 00 73 0 00 7 126 0 00 199 0 00 8 127 0 00 326 0 bull 0 0

10 11 4 3 105 440 3 27 12 113 2 71 553 5 36 14 119 1 34 672 6 36 15 116 4 138 788 10 51 17 116 3 103 904 13 56 19 118 6 203 1022 19 74 21 118 0 00 1140 19 67 22 117 10 342 1257 29 92 24 116 3 103 1373 32 93 26 119 11 370 1492 43 115 28 11 8 6 203 1610 $ 49 122 29 115 13 452 1725 62 144

July 1 119 8 269 1844 70 152 3 119 17 571 1963 87 177 5 119 13 437 2082 100 192 6 12 0 17 567 2202 117 213 8 121 7 231 2323 124 214

10 11 4 18 632 2437 142 233 12 115 12 417 2552 154 241 13 116 37 1276 2668 191 286 15 117 16 547 2785 207 297 17 11 8 31 1051 290 3 238 328 19 118 18 610 3021 256 339 20 115 29 1009 3136 285 364 22 122 17 557 3258 302 371 24 115 24 835 3373 326 387 26 120 19 633 3493 345 395 27 117 11 376 3610 356 394 29 117 14 479 3727 370 397 31 116 18 621 3843 388 404

August 2 121 9 298 3964 397 401 3 122 17 557 4086 414 405 5 11 8 8 271 4204 422 402 7 128 19 594 4332 441 407 9 257 10 156 4589 451 393

10 125 14 448 4714 464 394 12 13 1 308 4727 465 393 14 107 5 187 4834 470 389 16 122 4 131 4956 474 383 17 123 15 488 5079 489 385 19 118 8 271 5197 497 383 21 112 3 107 5309 500 378 23 120 6 200 5429 506 373 24 115 7 243 5544 513 370

51

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TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 (Continued)

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

August 26 115 5 174 5657 518 366 28 119 1 34 577 6 519 359 30 119 4 134 5895 523 355 31 117 0 00 6012 523 3 48

Sept 2 123 3 98 613 5 526 343 4 479 2 17 6614 528 319 6 238 1 17 6852 529 309 7 237 0 00 7089 529 298 8 9

238 242

1 2

17

33 7327 7569

clt

530 532

289 281

10 242 3 50 7811 535 274 11 242 0 00 8053 535 266 12 241 2 33 8294 537 259 14 227 3 53 8521 540 253 15 242 0 00 8763 540 246 16 210 1 19 8973 541 241 17 239 2 33 9212 543 236 18 230 0 00 9442 543 230 20 489 0 00 9931 543 219 21 240 2 33 10171 545 214 22 242 0 0 10413 545 209 23 234 0 00 10647 545 205

----shy

10647 545

52

------------------------------------------------------------------------

------

TABLE 6A Unalakleet River Sonar Site Drift Sets5 1 4n Me sh 19 83 bull

Date Time Result

July 19 1405-1413 1 burbot July 23 1040-1055 1 pink caracass July 27 1520-1530 1 coho August 3 1444-1501 4 coho August 22 1930-1937 0 August 23 937-943 1 coho 1 pink carcass August 26 1117-1127 1 coho 3 churn August 31 1018-1034 3 churn

TABLE 6B Unalakleet River Sonar Site Beach Seines 1983

Date Time Distance Result

July 20 1445 120 meters 4 pink 1 churn 13 Dolly Varden 1 whitefish

July 25 1500 120 meters 6 pink 1 churn 1 Dolly Varden 4 whitefish 1 grayling

July 28 1700 120 meters 4 coho 2 pink 2 churn 1 Dolly Varden

August 1 2010 300 meters 4 pink 3 churn 8 Dolly Varden

August 4 1015 130 meters 5 coho 3 pink 3 churn 65 Dolly Varden 3 whitefish 3 grayling

August 24 1110 130 meters 18 coho 2 Dolly Varden 2 grayling

August 29 1715 120 meters 11 coho 1 pink 69 churn 1 Dolly Varden 2 grayling

Seine done at mile 12 Unalakleet River

53

--------------------------------------------------------------------------------------------------

--------------------------------------------------------------------------------------------------

TABLE 7 AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER CATCH SAMPLE SPORT CATCH AND SPAWNING SURVEYS 1983

II

COMBINED 3-2 4-2 4-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 31 646 6702 5 104 5010 8 167 5688 1 21 5900

Female 17 354 8540 o o 1 21 5450 o o

Total 48 1000 7353 5 104 5010 9 188 5661 1 21 5900

~ 11)

5-2 6-2 7-2 7-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 11 229 7382 6 125 8350 0 0 0 0

Female 2 42 7925 12 250 8742 1 21 10650 1 21 8350

Total 13 271 7465 18 375 8611 1 21 10650 1 21 8350

TABLE 8A AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER TEST NET SAMPLE 1983

-----~-------------------------------------------------------------------------------------------------------

gt

COMBINED 4-2 5-2 5-3 6-2 7-2 NO LENGIH NO LENGIH NO LENGIH NO LENGTH NO LENGTH NO LENGTr

8 14 n

Male 3 333 8107 0 1 111 5800 o 0 2 222 9260 0 0 Female 6 667 8295 0 0 1 111 7600 o o 4 444 8310 1 111 8930 Total 9 10 e 0 8232 0 o 2 222 6700 o o 6 667 8627 1 111 8930

If) If)

5 14 Male 19 1000 6298 12 632 5392 4 211 6990 0 o 3 158 8997 0 0 Female o 0 o o o o o o 0 0 0 0 Total 19 1000 6298 12 632 5392 4 211 6990 o o 3 158 8997 0 0

4 n or Smaller Male 6 667 5930 1 111 4660 2 222 6325 3 333 6090 0 o 0 o Female 3 333 8970 o o o o o o 3 333 8970 0 o Total 9 1000 6943 1 111 466 2 222 6325 3 33 3 6090 3 33 3 8970 0 0

TOTAL Hale 28 757 6413 13 351 5336 7 189 6630 3 8 1 6090 5 13 5 9102 o 0 Female 9 243 852 o o 1 27 7600 o o 7 189 8593 1 2 7 8930 Total 37 1000 6925 13 351 5336 8 216 6751 3 8 1 6090 12 324 88 e 5 1 2 7 8930

---------------------------------------------------------------------------------------------------------

---------------------------------------------------------------------------------------------------------

TABLE 8B AGE SEX AND SIZE COMPOSITION OF NORTON SOUND COHO SALMON UNALAKLEET RIVER TEST NET SAMPLE 5 14 AND 5 78 GEAR 1983

COMBINED 3-2 4-3 4-4 5-4 NO LENGIH NO LENGIH NO LENGTH NO LENGIH NO LENGTH

Male 9 900 5489 0 0 9 900 5489 0 0 Female 1 10 bull 0 552 QJ QJ 0 1 10QJ 5520 0 0 Total 10 1000 5492 0 0 10 1000 5492 0 0 725-731

bull LI)Male 15 938 5645 15 938 5645 Female 1 62 575 QJ 1 62 575 QJ Total 16 lQJ0QJ 5651 16 100QJ 5651 81-87

Male 24 545 5668 23 523 5768 1 23 3350 Female 20 455 5631 20 455 5631 0 0 Total 441QJ0QJ 5651 43 977 57 QJ 4 1 23 335 QJ 88-814

Male 7 500 5797 7 500 5797 QJ 0 Female 7 500 5596 6 429 5587 1 71 5650 Total 14 1000 5696 13 929 1 71 5650570 815-821

Male 5 455 5492 5 455 5492 Female 6 545 5552 6 545 5552 Total 11 lQJ00 5525 11 100QJ 5525 822-828

escapement is probably underestimated but the 20 fathom net samples an area further out than the sonar counter even with its beam extended So the number of king salmon counted by the sonar is over estimated King salmon make up such a small percentage of the total salmon run that counting errors are more significant than this apportionment error

Very few churn and pink salmon were caught in the offshore end of the nets It is assumed these long nets had very little effect on the sonar count species apportionment

CONCLUSION

The feasibility of counting salmon in the Unalakleet River using side-scanning sonar is unlikely due to milling fish and the inal1ility to accurately apportion the sonar count to the various fish species It is possible that a partial escapement count could be made further up river above one or more of the major tributaries to the system The new north bank sonar site that showed some improvement over the former site had two differences that seemed to affect salmon migration The current was faster over the substrate at the second site and the river gravels were less ideal spawning habitat The new site was located below a rock bluff on the outside of a river bend

There are two similar sites up river about ten miles where the current is faster and the bottom is even less conducive to spawning During the 1984 field season a comparison of the smoother running south bank site and these up-river sites could be made The best time to do this would be during August when only coho salmon are migrating The counter should be operating by August 15 prior to milling activity and maintained for a week to evaluate if milling salmon became apparent later after the migration peaked The south bank site could be used as a control for comparison to 1983

-13shy

I I

5 1 2

Miles No tt h _

shy

R Iv er

Figure 1 Unalakleet Escapement Project

lt

Son sr

Fig u r e 2 S 0 0 a r Sit eSc hem a tic

ITower

Original Ninth Bank Sonar

Drift sets 5 minutes

Lf)

So t h Ban k Son a

lTower

o Work Tent

B Living Quarters

Figure 3Unalakleet Subsistence Survey 1983

Kin g- S a I m 0 n

1bull

10

9

c 8aI

-lE 11 t a til 7 ~ II 6 ~ U

5 til

0

c 4 til til

E 3 I

1 V

~ 2

1

27 1 5 10 15 20 25 30

~ June

Figure 4A Specie apportionment king salmon Un-alakleet sonar 1983

~

25

-l20

c 1 5 III () III

11

10

5

I

J

27 31 5 10 15 20 25 30 5 10 15 20 25 31

June Ju Iy

Figure 4B Specie middotapp~~tionment coho salmon Unalakleet sonar 1983

30

25

co ~

20

1 t~

C $

u 1 5 CD a

10

5

5 10 15 20 25 31 5 10 15 20 25 31 5

Ju August Sept e

Figure 4C Specie apportionment pink salmon Unalakleet sonar 1983

1 6

1 5

14

1 3

12

1 1

c II U CII

Ashy

10

9

a

7

01 ~

6

5

4

3

2

1

1 5 10 1 5

June

2 O 25 30 5 10 15 20

Ju Iy

25 31 5 10 15 20

August

25 31 5 10

Septem

Figure 40 Species apportionment chum salmon Unalakleet sonar 1983

16

1 5

1 4

13

1 2

1 1

10

9 c 8GI U

GI middot7 A

6

5

4

3

2

1

~

o N

~

1 5 10 15 20 25 30 5 10 15 20 25 3 1 5 10 15 20 25 31 5 10

June Ju Iy August Sept e

Figure 5 Specie apportionment Unalakleet sonar 1983

50

4

40

35

c J 30 0 U

~ 0 25 0 c Q)

u ~

Q) 20a

15

10

5

o L-_lt---__

King Coho Pink Chum Misc

21

----

Figure 6 Sector distribution of counts Unalakleet sonar1983

35

30

25

c 20 G)

() G) 15

0

10

5

35

30

25 c G)

() 20

G)

0 15

10

5

( s ()u t h ban k )

July 3-5

~-2 4 6 8 1 0 1 2 1 4 1 6shy

Sector

August 21-23

2 4 6 8 10 12 14 16

Sector

22

Figure 7 Hourly distribution of counts Unalakleet sonar 1983

(south bank)

14

12

10

c 8 GI U ~

6

July 3-5

~GI

I =~ Q

4

2 0

2 4 6 8 10 12 14 1 6 18 20 22 24

TIme

9

8

7

6

5 c GI U ~ 4 GI

Q

3

2

August 21-23

1

0

2 4 6 8 10 12 14

TIme

16

23

18 20 22 24

Figure 8 Unalakleet River Test Fishing Daily King CPUE in 8 14 mesh 1983

10

9 N

8 shy

7 I 0 c 6E

n

l J I I

0 0 5 c (J 4 co 0

3

2

1

I I

27 1 5 10 15 20 25 1 5 10 15 20 25 31

~ June July

Figure 9 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1983bull

~

middot10

09 U N

I 08 0 c 07E I ()

- 06 E-0 0 05 shy~ () 04 ca - ()

03E I 0 02

01

27 1 5 10 15 2Q 25 1 5 10 15 20 25 31

June July

Figure 10 Unalakleet River Test Fishing Daily Coho CPUE in 5 78 mesh 1983

1

6

5

I 0

NI II I 0 t

E 4

0 0 c 3() cu 0

2

1

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sept U

Figure 11 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1983

200

175

150

I 0 c 125E I ()

E

r-shy-0 I I N 0 100 c ()-as ()

75E I 0

50

25

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sel ber

20

Figure 12 Unalakleet River Test Fishing Daily Pink CPUE in 4 mesh 1983

18

I

0) N

II

16

I ishy

14 J 0 t 12shyE 0 10 0 shys 8 () as

0 6 1 I V 4

2

~ I

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

--

Figure 13 Unalakleet River Test Fishing Cumulat ive Pink CPUE in 4 mesh 1983

10

9 01 N 8

J 0 J 7 E J 0 6 E- 50 ~

amp 4() ca

0 3 E J

0 2

1

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

Figure 14 Unalakleet River Test Fishing Daily CPUE in 5 14 amp 5 78 mesh 1983

14

13shy

12

11

10

9 J 0 8

I z shy-E 7 0 0 shys ~u aI 0

4 I

31

2

1

II

0 C1)I 11

I I I II

bull y AA(net changed to 5 78

AA A 11 I

~ I~ V ~

- I

VI

1 5 10 15 20- 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

cJune July August

Figure 15 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 14 amp 5 78 mesh 1983

It

5

--l C)

net changed to 5 78

~ 4 o

c E (J ~

3E o o c 2 u ~ -(J

E ~ (J 1

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 16 Unalakleet River Test Fishing Catch Proportions 1983

60

55

---- King50

__ Coho 45

P--Q Pink

40 __ Chum

I LU 35J D I 0

30 ICQ 0 25 I

N Cl0 20

c G)

15u G)

D

10

5 A 1 I

I 4 I

I I

3 lt

~

2

I I1 - I bull I

I ~ ~ ~ t -J ~~ - _

r

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 17 Unalakleet Area Temperatures 1983

18

16

14

12

til 10I

u-G) 80 CI) G) G) 6 C) G)

Q 4

2

C) C)

__ Air

0--0 River 2

0

-2

-4

---------~ ~

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August 5e

4

Figure 18 Unalakleet River Turbidity and Depth 1983

__ Secchi Reading

-t ()

II) G)-G)

3

iE 2

1

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August

~ 1 _ ~ r--- I shy I __ I 01 --shy

Figure 19 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1981-83

27 31 5

May

_1981

____ 1982

o 0 1983 11) C)

Changed to 5 78 mesh

I

t

~-~o-~ Q-O--Oolt)-(IQ-----l

--1

_10 15 20 25 30 5 10 15 20 25 31

June July

I I I

~

0 ~

r E ~

CJ shyE 0 0 I

shyr u-cu CJ

E ~

CJ

4

35

30

25

20

15

10

05

Figure 20 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 78 mesh 1981-83

5

4 lI 0

z

E lI 0 3 E-0 0 2 r CJ-cu 0

E lI 1 0

__1981 ~~

~ ___1982

a 01983 5 148 mesh from 65-810

_----shy-- 0 - -- C1) A - _ - ~

~ I

I

II I I I I I

I I

1

~ -

-

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 21 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 mesh- 1981-83

8

70

60

50

40 0

r 30E

0 20E-0 0 10 s= u 8 tV 0 6E 0 4

2

__1981 ____ 1982

_1983

shy--- -- shy--- shy J - -

I

I

C1- J

I

-----l---l ~--~r---------------r--

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 22 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1981-83

_1981

~ __ 1982

~1983

25

00I _ __ _ _ C)~ I __ _ I

I V o 20 rt I I

E I AshyI o E 15-o o z u 10 tU o E I o 5

I

1 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

July August 5

----------------------------------------------------------------

Table 1 Unalakleet River Subsistence King Salmon Index 1983

Number of Number of Date Fishermen Chinook Average

08 02 18 05 05 00 02 58 92 62 72 72 42 28 52 60 62 20 47 50 35 25 15

June 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Totals

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 4 4 4

4

3 1 7 2 2 o 1

23 37 25 29 29 17 11 21 24 25

6 14 15 14 H~

6

322

~

39

---------------------- ---------- --------------------------------------

----------------------------------------------------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983

Daily Proportion Cumu1 Prop Date South North Total of Total Cumulative of Total

64 7 23 30 1313131 313 013131 65 44 187 231 00137 261 01308 66 12 162 174 01305 435 01313 67 8 283 291 1313139 726 01322 68 0000 726 13022 69 3 221 224 013137 950 13029 610 26 245 271 131308 1221 13037 611 56 254 310 131310 1531 131347 612 44 736 780 013 24 2311 13071 613 64 1188 1252 01339 3563 01113 614 59 1752 1811 0056 5374 0166 615 97 844 941 01329 6315 0195 616 165 729 894 0028 7209 0223 617 151 i 604 1755 0054 8964 middot 0277 618 i ll 1524 1635 0051 10599 13328 619 175 2000 2175 0067 12774 13395 620 171 21320 2191 0068 14965 0463 621 220 1613 1833 0057 16798 0520 622 199 2065 2264 0070 19062 0590 623 362 21334 2396 0074 21458 13664 624 876 3403 4279 13133 25737 0797 625 1244 2023 3267- 0101 29004 0898 626 738 1601 2339 0073 31343 0971 627 573 3265 3838 0119 35181 1090 628 547 1868 2415 0075 37596 1165 629 528 4028 4556 0141 42152 1306 630 430 430 0013 42582 1319 71 240 240 01307 42822 1326 72 201 975 1176 0036 43998 1362 73 309 8842 9151 0284 53149 1646 74 475 6385 6860 0213 60009 1859 75 565 3342 3907 0121 63916 1980 76 1377 2094 3471 0108 67387 2088 77 1416 3173 4589 0142 71976 2230 78 1472 1420 2892 0090 74868 2320 79 2071 1452 3523 01113 78391 2430 710 3318 2434 5752 0178 84143 2608 711 2673 2866 5539 13172 89682 2780 712 1665 1747 3412 13106 93094 2886 713 21317 1951 3968 13123 97062 3009 714 2991 2664 5655 0175 102717 3184 715 2646 2548 5194 13161 107911 3345 716 2488 2886 5374 0167 113285 3512 717 1585 4063 5648 0175 118933 3687 718 3559 9326 12885 0400 131818 4087 719 2948 2398 5346 13166 137164 4253 720 1640 3330 4970 0154 142134 4407 721 2416 6420 8836 0274 150970 4681 722 3298 3298 0102 154268 4783 723 5007 5007 0155 159275 4938

40

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-----------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983 (Continued)

Daily Proportion Cum Prop Date South North Total of Total Cumu1at i ve of Total

724 4005 7804 11809 0366 171084 5304 725 2453 3392 5845 0181 176929 5485 726 2166 12094 14260 0442 191189 5927 727 1914 4472 6386 0198 197575 6125 728 1603 3463 5066 0157 202641 6282 729 1251 1914 3165 0098 205806 6380 730 1710 2495 4205 en30 210011 6510 731 2542 1887 4429 0137 214440 6647 81 4479 2271 6750 0209 221190 6856 82 1103 1806 2909 0091 224099 6947 83 1719 942 2661 0083 226760 bull 7030 84 1519 2557 4076 0126 230836 7156 85 1259 1113 2372 0074 233208 7230 86 940 2189 3129 0097 236337 7327 87 1467 4354 5821 0180 242158 7507 88 2318 1584 3902 0121 246060 7628 89 2098 1505 3603 0112 249663 7740 810 2629 1517 4146 bull 0129 253809 7869 811 3753 1091 4844 0150 258653 8019 812 1489 523 2012 0062 260665 8081 813 744 353 1097 0034 261762 8386 814 981 981 bull 0030 262743 8145 815 2324 2324 0072 265067 8217 816 2638 2638 0082 267705 8299 817 2073 731 2804 0087 270509 8115 818 2244 675 2919 0091 273428 8477 819 3240 696 3936 0122 277364 8599 820 2363 503 2866 0089 280230 8688 821 6789 1111 7900 0245 288130 8933 822 6489 563 7052 0219 295182 9152 823 5077 298 5375 0167 300557 9319 824 2616 298 2914 0090 303471 9409 825 3933 412 4345 0135 307816 9544 826 1393 554 1947 0060 309763 9604 827 1203 463 1666 0052 311429 9656 828 1197 542 1739 0054 313168 9710 829 1244 221 1465 0045 314633 9755 830 1011 199 1210 0038 315843 9793 831 718 214 932 0029 316775 9822 91 1324 318 1642 0052 318417 9874 92 1362 307 1669 0052 320086 9926 93 1146 314 1460 0045 321546 9971 94 652 296 948 bull 0029 322494 10000

148465 174029 322494 10000

41

----------------------------------------------------------------------

-------------------------------------------------------------------- --

------

TABLE 3A Unalakleet River Species Apportionment by Test Period King Salmon 1983

3-Day App Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 76 0272 76 0272

69-612N 28 0100 104 0372

612N-615 461 1652 565 2024

616-619N 419 1502 984 3526

619N-622 170 0609 1154 4135

623-626N 722 2588 1876 6723

626N-629 264 0946 2140 7669

630-73N 103 0639 2243 8038

73N-76 188 0674 2431 8712

77-710N 0 0000 2431 8712

710N-713 0 0000 2431 8712

714-717N 267 0957 2698 9969

717N-720 0 0000 2698 9669

721-724N 92 0331 2790 1 0000

724N-727 0 0000 2790 10000

728-731N 0 0000 2790 1 0000

731N-83 0 0000 2790 1 0000

2790 10000

42

Dates

714-717N

717N-720

721-724N

724N-727

728-731N

731N-83

84-87N

87N-810

811-814N

814N-817

818-821N

821N-824

825-828N

828N-831

91-94

TABLE 3B Unalakleet River Species Apportionment by Test Period Coho Salmon

3-Day Count

583

338

436

550

2650

1174

793

1435

5074

1280

435

2265

171H3

1983

Proportion of Season Total

0000

0000

0000

0343

0199

0256

0323

1558

0690

0466

0843

2983

0752

0256

1331

Cumulative Count

583

921

1357

1907

4557

5731

6524

7959

13033

14313

14748

17013

Cumulative Proportion

0000

0000

0000

0343

0542

0798

1121

2679

3369

3835

4678

7661

8413

8669

10000

43

------------------------------------------------------------------

------------------------------------------------------------------

----- ------

TABLE 3C Unalakleet River Species Apportionment by Test Period Pink Salmon 1983

3-Day P roport ion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 0 0000

6l2N-615 0 0000

616-6l9N 97 0012

6l9N-622 332 0036

623-626N 1245 0136

626N-629 6624 0721

630-73N 3699 0403

73N-76 10762 1171

77-7l0N 7704 0838

710N-7l3 8529 0928

714-717N 9771 1063

717N-720 13845 1507

721-724N 11361 1236

724N-727 6544 0712

728-731N 3545 0386

731N-83 1628 0177

84-87N 1224 0133

87N-810 1777 0193

811-814N 802 0087

814N-817 561 0061

818-821N 533 0058

821N-824 8313 13091

825-828N 468 0051

828N-831 0 0000

91-94 0 0000

91881 10000

0 0000

0 0000

0 0000

97 0012

429 0048

1674 0184

8298 0905

11997 1308

22759 2479

30463 3317

38992 4245

48763 5308

62608 6815

73969 8051

80513 8763

84058 9149

85686 9326

86910 9459

88687 9652

89489 9739

90050 9800

90583 9858

91413 9949

91881 10000

91881 10000

91881 1 0000 44

------------------------------------------------------------------

------------ ------------------------------------------------------

----- ------

TABLE 3D Unalakleet River Species Apportionment by Test Period Chum Salmon 1983

3-Day Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 100 0017

612N-615 268 0046

616-619N 838 0144

619N-622 1180 0202

623-626N 2744 0471

626N-629 1569 0270

630-73N 796 0137

73N-76 2972 0510

77-710N 2068 0355

710N-713 2622 0450

714-717N 4133 0710

717N-720 5596 0960

721-724N 4978 0854

724N-727 8974 1540

728-731N 2241 0385

731N-83 2079 ~0357

84-87N 3009 0516

87N-810 2432 0417

811-814N 937 0161

814N-817 454 0078

818-821N 2584 0443

821N-824 2739 0470

825-828N 1783 0306

828N-831 765 0131

91-94 412 0070

58273 10000 45

0 0000

100 0017

368 0063

1206 0207

2386 0409

5130 0880

6699 1150

7495 1287 f

10467 1797

12535 2152

15157 2602

19290 3312

24886 4272

29864 5216

38838 6666

41079 7051

43158 7408

46167 7924

48559 8341

49536 8502

49990 8580

52574 9023

55313 9493

57096 9799

57861 9930

58273 1 0000

-------------------------------------------------------------

------------------------- ------------------------------------

TABLE 4 Unalakleet River Test Net Proportions by Sample Perio-d 1983 ( Selective CPUE)

Dates Chinook Coho Pink Chum Misc

64-68 105 00 00 895

69-612N 24 00 83 893

612N-615 1C~ 5 00 61 834

616-619N 78 18 156 748

619N-622 23 45 160 772

623-626N 65 112 247 576

626N-629 22 553 131 294

630-73N 16 576 124 284

73N-76 10 572 158 260

77-710N 00 555 149 296

710N-713 00 540 166 294

714-717N 14 00 513 217 256

717N-720 00 00 532 215 253

721-724N 04 00 493 216 287

724N-727 00 18 202 277 503

728-731N 00 23 242 153 582

731N-83 00 30 112 143 715

84-87N 44 98 241 617

87N-810 182 122 167 529

811-814N 139 95 111 655

814N-B17 96 68 55 7B1

B18-B21N 105 39 1B9 667

821N-824 263 43 142 552

825-B28N 145 53 202 600

828N-831 97 00 171 732

91-94 396 00 72 532

46

--------

--------

TABLE 4 Una1ak1et River Test Net Proportions 1983 ( Selective CPUE) (Continued)

Comparative Apportionment

Species Apportionment

Chinook 2790 Coho 17013 Pink 91881 Churn 58273

------shySubtotal 169957

Misc Species 152537 ------shy

Total 322494

Substrate Comparison -------------------shy

Bank Counts -----shy

South 148465 North 174029

------shy

Total 322494

Percent of Total Counts

09 53

285 181

5408

472

1000

Percent

460 540

1000

47

-------------------------------------------------------------------

TABLE 5A Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

May 27 28

21 5 482

13 13

1313

1313 21 5 697

13 13

1313

1313 30 240 0 013 937 0 00 31 246 2 41 1183 2 08

June 1 237 0 00 1420 2 07 2 3

256 585

13 13

013 bull 13 13

1676 2 261

2 2

6bull 13 4

5 6 8

160 120 middot 125

13 1

13 42 130

2 421 2541 2666

~ 2 3 3

bull 13 4 136 136

9 122 0 130 2788 3 05 11 117 00 2905 3 05 12 126 13 00 3031 3 05 13 117 1 43 3148 4 06 15 118 0 013 3266 4 136 16 116 1 43 3382 5 138 18 240 13 130 3622 5 07 19 121 0 00 3743 5 07 20 116 0 00 3859 5 136 22 118 1 42 3977 6 138 23 119 1 42 4196 7 08 25 240 0 013 4336 7 138 26 119 13 1313 4455 7 138 27 119 13 1313 4574 7 138 29 1213 13 130 4694 7 137 313 1213 13 00 4814 7 07

July 2 238 0 1313 51352 7 07 3 118 13 013 51713 7 07 4 118 1 42 5288 8 138 6 122 0 00 5410 8 07 7 116 13 00 5526 8 07

10 126 0 1313 5652 8 07 11 119 0 013 5771 8 07 13 116 13 130 5887 8 07 14 119 2 84 6006 10 07 17 122 0 00 6128 10 07 18 112 0 1313 6240 10 136 20 119 13 00 6359 10 06 21 112 0 013 6471 10 06

6471 10

48

------------------------------------------------------------------

------------------------------------------------------------------

TABLE 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983

Cum Cum Date Hours Catch CPUE Hours Catch CPUE

July 24 26

115 120 0 00

115 235

0 0

00

00 27 117 4 00 352 0 00 29 117 0 137 469 4 34 31 116 3 103 585 7 48

August 2 122 0 00 706 7 40 3 122 2 66 828 9 43 5 118 1 34 946 10 42 7 128 14 437 1074 24 89 9 257 14 218 1331 38 114

10 125 21 672 1456 59 162 12 13 middot- 0 00 1469 x 59 161 14 10 7 12 449 1576 71 180 16 122 2 66 1698 73 172 17 123 6 196 1821 79 174 19 118 1 34 1939 80 165 21 112 6 214 2051 86 168 23 120 3 100 217 1 89 164 24 115 2 70 2286 91 159 26 115 5 174 2401 96 160 28 119 0 00 2520 96 152 30 119 4 1 34 2639 100 152 31 117 1 34 2756 101 147

Sept 2 123 5 33 2879 106 147 4 479 15 125 3358 121 144 6 238 11 185 3596 132 147 7 237 5 84 3833 137 143 8 238 6 1 01 4071 143 141 9 242 10 1 65 4313 153 142

10 242 3 50 4555 156 137 11 242 2 33 4797 158 132 12 241 8 133 5038 166 132 14 227 14 247 5265 180 137 15 242 9 149 5507 189 137 16 210 3 57 5717 192 134 17 239 2 33 5956 194 130 18 230 2 35 6186 196 127 20 489 4 33 6675 200 120 21 24 3 50 6915 203 117 22 242 0 00 7157 203 113 23 234 1 17 7391 204 110

----shy

7391 204

Mesh size = 5 14 from 724 to 810

49

------------------------------------------------------------------

TABLE 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE ------~-----------------------------------------------------------June 16 122 1 33 122 1 33

17 118 0 bull 0 0 240 1 17 20 120 2 67 360 3 33 21 118 0 00 478 3 25 23 119 2 67 597 5 34 24 119 3 102 716 8 45 27 116 19 655 832 27 130 28 120 22 733 952 49 206 30 120 40 1333 1072 89 332

July 1 115 36 1252 1187 125 421 4 122 30 983 1309 155 474 5 114 47 1649 1423 202 568 7 118 30 1016 1541 232 602 8 120 shy 24 800 1661 -$ 256 616

11 122 42 1377 1783 298 669 12 120 29 967 1903 327 687 14 116 37 1276 2019 364 721 15 118 40 1356 2137 404 756 18 121 60 1976 2258 464 822 19 119 30 740 2377 494 831 21 125 61 1952 2502 555 887 22 118 25 847 2627 580 883 25 122 16 525 2749 596 867 26 116 15 517 2865 611 853 28 122 28 918 2987 639 856 29 117 11 376 3104 650 838

August 1 120 7 233 3224 657 815 2 119 9 303 3345 666 796 4 120 3 100 3465 669 772 5 118 5 170 3583 674 752 8 114 7 245 3697 681 734

11 123 7 337 3 82 0 688 720 15 118 2 68 3938 690 701 16 113 5 177 4051 695 686 18 98 3 122 4149 698 673 19 119 1 34 4268 699 655 22 112 0 00 4380 699 638 23 115 0 00 4495 699 622 25 120 2 66 4615 701 606 26 112 1 36 4727 702 594 29 116 0 00 4843 702 580 30 11 5 0 00 4958 702 566

Sept 1 115 0 00 5079 702 553 2 112 0 00 5191 702 541

----shy5079 702

50

-----------------------------------------------------------------

------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

June 5 73 0 00 73 0 00 7 126 0 00 199 0 00 8 127 0 00 326 0 bull 0 0

10 11 4 3 105 440 3 27 12 113 2 71 553 5 36 14 119 1 34 672 6 36 15 116 4 138 788 10 51 17 116 3 103 904 13 56 19 118 6 203 1022 19 74 21 118 0 00 1140 19 67 22 117 10 342 1257 29 92 24 116 3 103 1373 32 93 26 119 11 370 1492 43 115 28 11 8 6 203 1610 $ 49 122 29 115 13 452 1725 62 144

July 1 119 8 269 1844 70 152 3 119 17 571 1963 87 177 5 119 13 437 2082 100 192 6 12 0 17 567 2202 117 213 8 121 7 231 2323 124 214

10 11 4 18 632 2437 142 233 12 115 12 417 2552 154 241 13 116 37 1276 2668 191 286 15 117 16 547 2785 207 297 17 11 8 31 1051 290 3 238 328 19 118 18 610 3021 256 339 20 115 29 1009 3136 285 364 22 122 17 557 3258 302 371 24 115 24 835 3373 326 387 26 120 19 633 3493 345 395 27 117 11 376 3610 356 394 29 117 14 479 3727 370 397 31 116 18 621 3843 388 404

August 2 121 9 298 3964 397 401 3 122 17 557 4086 414 405 5 11 8 8 271 4204 422 402 7 128 19 594 4332 441 407 9 257 10 156 4589 451 393

10 125 14 448 4714 464 394 12 13 1 308 4727 465 393 14 107 5 187 4834 470 389 16 122 4 131 4956 474 383 17 123 15 488 5079 489 385 19 118 8 271 5197 497 383 21 112 3 107 5309 500 378 23 120 6 200 5429 506 373 24 115 7 243 5544 513 370

51

-----------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 (Continued)

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

August 26 115 5 174 5657 518 366 28 119 1 34 577 6 519 359 30 119 4 134 5895 523 355 31 117 0 00 6012 523 3 48

Sept 2 123 3 98 613 5 526 343 4 479 2 17 6614 528 319 6 238 1 17 6852 529 309 7 237 0 00 7089 529 298 8 9

238 242

1 2

17

33 7327 7569

clt

530 532

289 281

10 242 3 50 7811 535 274 11 242 0 00 8053 535 266 12 241 2 33 8294 537 259 14 227 3 53 8521 540 253 15 242 0 00 8763 540 246 16 210 1 19 8973 541 241 17 239 2 33 9212 543 236 18 230 0 00 9442 543 230 20 489 0 00 9931 543 219 21 240 2 33 10171 545 214 22 242 0 0 10413 545 209 23 234 0 00 10647 545 205

----shy

10647 545

52

------------------------------------------------------------------------

------

TABLE 6A Unalakleet River Sonar Site Drift Sets5 1 4n Me sh 19 83 bull

Date Time Result

July 19 1405-1413 1 burbot July 23 1040-1055 1 pink caracass July 27 1520-1530 1 coho August 3 1444-1501 4 coho August 22 1930-1937 0 August 23 937-943 1 coho 1 pink carcass August 26 1117-1127 1 coho 3 churn August 31 1018-1034 3 churn

TABLE 6B Unalakleet River Sonar Site Beach Seines 1983

Date Time Distance Result

July 20 1445 120 meters 4 pink 1 churn 13 Dolly Varden 1 whitefish

July 25 1500 120 meters 6 pink 1 churn 1 Dolly Varden 4 whitefish 1 grayling

July 28 1700 120 meters 4 coho 2 pink 2 churn 1 Dolly Varden

August 1 2010 300 meters 4 pink 3 churn 8 Dolly Varden

August 4 1015 130 meters 5 coho 3 pink 3 churn 65 Dolly Varden 3 whitefish 3 grayling

August 24 1110 130 meters 18 coho 2 Dolly Varden 2 grayling

August 29 1715 120 meters 11 coho 1 pink 69 churn 1 Dolly Varden 2 grayling

Seine done at mile 12 Unalakleet River

53

--------------------------------------------------------------------------------------------------

--------------------------------------------------------------------------------------------------

TABLE 7 AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER CATCH SAMPLE SPORT CATCH AND SPAWNING SURVEYS 1983

II

COMBINED 3-2 4-2 4-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 31 646 6702 5 104 5010 8 167 5688 1 21 5900

Female 17 354 8540 o o 1 21 5450 o o

Total 48 1000 7353 5 104 5010 9 188 5661 1 21 5900

~ 11)

5-2 6-2 7-2 7-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 11 229 7382 6 125 8350 0 0 0 0

Female 2 42 7925 12 250 8742 1 21 10650 1 21 8350

Total 13 271 7465 18 375 8611 1 21 10650 1 21 8350

TABLE 8A AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER TEST NET SAMPLE 1983

-----~-------------------------------------------------------------------------------------------------------

gt

COMBINED 4-2 5-2 5-3 6-2 7-2 NO LENGIH NO LENGIH NO LENGIH NO LENGTH NO LENGTH NO LENGTr

8 14 n

Male 3 333 8107 0 1 111 5800 o 0 2 222 9260 0 0 Female 6 667 8295 0 0 1 111 7600 o o 4 444 8310 1 111 8930 Total 9 10 e 0 8232 0 o 2 222 6700 o o 6 667 8627 1 111 8930

If) If)

5 14 Male 19 1000 6298 12 632 5392 4 211 6990 0 o 3 158 8997 0 0 Female o 0 o o o o o o 0 0 0 0 Total 19 1000 6298 12 632 5392 4 211 6990 o o 3 158 8997 0 0

4 n or Smaller Male 6 667 5930 1 111 4660 2 222 6325 3 333 6090 0 o 0 o Female 3 333 8970 o o o o o o 3 333 8970 0 o Total 9 1000 6943 1 111 466 2 222 6325 3 33 3 6090 3 33 3 8970 0 0

TOTAL Hale 28 757 6413 13 351 5336 7 189 6630 3 8 1 6090 5 13 5 9102 o 0 Female 9 243 852 o o 1 27 7600 o o 7 189 8593 1 2 7 8930 Total 37 1000 6925 13 351 5336 8 216 6751 3 8 1 6090 12 324 88 e 5 1 2 7 8930

---------------------------------------------------------------------------------------------------------

---------------------------------------------------------------------------------------------------------

TABLE 8B AGE SEX AND SIZE COMPOSITION OF NORTON SOUND COHO SALMON UNALAKLEET RIVER TEST NET SAMPLE 5 14 AND 5 78 GEAR 1983

COMBINED 3-2 4-3 4-4 5-4 NO LENGIH NO LENGIH NO LENGTH NO LENGIH NO LENGTH

Male 9 900 5489 0 0 9 900 5489 0 0 Female 1 10 bull 0 552 QJ QJ 0 1 10QJ 5520 0 0 Total 10 1000 5492 0 0 10 1000 5492 0 0 725-731

bull LI)Male 15 938 5645 15 938 5645 Female 1 62 575 QJ 1 62 575 QJ Total 16 lQJ0QJ 5651 16 100QJ 5651 81-87

Male 24 545 5668 23 523 5768 1 23 3350 Female 20 455 5631 20 455 5631 0 0 Total 441QJ0QJ 5651 43 977 57 QJ 4 1 23 335 QJ 88-814

Male 7 500 5797 7 500 5797 QJ 0 Female 7 500 5596 6 429 5587 1 71 5650 Total 14 1000 5696 13 929 1 71 5650570 815-821

Male 5 455 5492 5 455 5492 Female 6 545 5552 6 545 5552 Total 11 lQJ00 5525 11 100QJ 5525 822-828

I I

5 1 2

Miles No tt h _

shy

R Iv er

Figure 1 Unalakleet Escapement Project

lt

Son sr

Fig u r e 2 S 0 0 a r Sit eSc hem a tic

ITower

Original Ninth Bank Sonar

Drift sets 5 minutes

Lf)

So t h Ban k Son a

lTower

o Work Tent

B Living Quarters

Figure 3Unalakleet Subsistence Survey 1983

Kin g- S a I m 0 n

1bull

10

9

c 8aI

-lE 11 t a til 7 ~ II 6 ~ U

5 til

0

c 4 til til

E 3 I

1 V

~ 2

1

27 1 5 10 15 20 25 30

~ June

Figure 4A Specie apportionment king salmon Un-alakleet sonar 1983

~

25

-l20

c 1 5 III () III

11

10

5

I

J

27 31 5 10 15 20 25 30 5 10 15 20 25 31

June Ju Iy

Figure 4B Specie middotapp~~tionment coho salmon Unalakleet sonar 1983

30

25

co ~

20

1 t~

C $

u 1 5 CD a

10

5

5 10 15 20 25 31 5 10 15 20 25 31 5

Ju August Sept e

Figure 4C Specie apportionment pink salmon Unalakleet sonar 1983

1 6

1 5

14

1 3

12

1 1

c II U CII

Ashy

10

9

a

7

01 ~

6

5

4

3

2

1

1 5 10 1 5

June

2 O 25 30 5 10 15 20

Ju Iy

25 31 5 10 15 20

August

25 31 5 10

Septem

Figure 40 Species apportionment chum salmon Unalakleet sonar 1983

16

1 5

1 4

13

1 2

1 1

10

9 c 8GI U

GI middot7 A

6

5

4

3

2

1

~

o N

~

1 5 10 15 20 25 30 5 10 15 20 25 3 1 5 10 15 20 25 31 5 10

June Ju Iy August Sept e

Figure 5 Specie apportionment Unalakleet sonar 1983

50

4

40

35

c J 30 0 U

~ 0 25 0 c Q)

u ~

Q) 20a

15

10

5

o L-_lt---__

King Coho Pink Chum Misc

21

----

Figure 6 Sector distribution of counts Unalakleet sonar1983

35

30

25

c 20 G)

() G) 15

0

10

5

35

30

25 c G)

() 20

G)

0 15

10

5

( s ()u t h ban k )

July 3-5

~-2 4 6 8 1 0 1 2 1 4 1 6shy

Sector

August 21-23

2 4 6 8 10 12 14 16

Sector

22

Figure 7 Hourly distribution of counts Unalakleet sonar 1983

(south bank)

14

12

10

c 8 GI U ~

6

July 3-5

~GI

I =~ Q

4

2 0

2 4 6 8 10 12 14 1 6 18 20 22 24

TIme

9

8

7

6

5 c GI U ~ 4 GI

Q

3

2

August 21-23

1

0

2 4 6 8 10 12 14

TIme

16

23

18 20 22 24

Figure 8 Unalakleet River Test Fishing Daily King CPUE in 8 14 mesh 1983

10

9 N

8 shy

7 I 0 c 6E

n

l J I I

0 0 5 c (J 4 co 0

3

2

1

I I

27 1 5 10 15 20 25 1 5 10 15 20 25 31

~ June July

Figure 9 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1983bull

~

middot10

09 U N

I 08 0 c 07E I ()

- 06 E-0 0 05 shy~ () 04 ca - ()

03E I 0 02

01

27 1 5 10 15 2Q 25 1 5 10 15 20 25 31

June July

Figure 10 Unalakleet River Test Fishing Daily Coho CPUE in 5 78 mesh 1983

1

6

5

I 0

NI II I 0 t

E 4

0 0 c 3() cu 0

2

1

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sept U

Figure 11 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1983

200

175

150

I 0 c 125E I ()

E

r-shy-0 I I N 0 100 c ()-as ()

75E I 0

50

25

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sel ber

20

Figure 12 Unalakleet River Test Fishing Daily Pink CPUE in 4 mesh 1983

18

I

0) N

II

16

I ishy

14 J 0 t 12shyE 0 10 0 shys 8 () as

0 6 1 I V 4

2

~ I

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

--

Figure 13 Unalakleet River Test Fishing Cumulat ive Pink CPUE in 4 mesh 1983

10

9 01 N 8

J 0 J 7 E J 0 6 E- 50 ~

amp 4() ca

0 3 E J

0 2

1

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

Figure 14 Unalakleet River Test Fishing Daily CPUE in 5 14 amp 5 78 mesh 1983

14

13shy

12

11

10

9 J 0 8

I z shy-E 7 0 0 shys ~u aI 0

4 I

31

2

1

II

0 C1)I 11

I I I II

bull y AA(net changed to 5 78

AA A 11 I

~ I~ V ~

- I

VI

1 5 10 15 20- 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

cJune July August

Figure 15 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 14 amp 5 78 mesh 1983

It

5

--l C)

net changed to 5 78

~ 4 o

c E (J ~

3E o o c 2 u ~ -(J

E ~ (J 1

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 16 Unalakleet River Test Fishing Catch Proportions 1983

60

55

---- King50

__ Coho 45

P--Q Pink

40 __ Chum

I LU 35J D I 0

30 ICQ 0 25 I

N Cl0 20

c G)

15u G)

D

10

5 A 1 I

I 4 I

I I

3 lt

~

2

I I1 - I bull I

I ~ ~ ~ t -J ~~ - _

r

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 17 Unalakleet Area Temperatures 1983

18

16

14

12

til 10I

u-G) 80 CI) G) G) 6 C) G)

Q 4

2

C) C)

__ Air

0--0 River 2

0

-2

-4

---------~ ~

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August 5e

4

Figure 18 Unalakleet River Turbidity and Depth 1983

__ Secchi Reading

-t ()

II) G)-G)

3

iE 2

1

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August

~ 1 _ ~ r--- I shy I __ I 01 --shy

Figure 19 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1981-83

27 31 5

May

_1981

____ 1982

o 0 1983 11) C)

Changed to 5 78 mesh

I

t

~-~o-~ Q-O--Oolt)-(IQ-----l

--1

_10 15 20 25 30 5 10 15 20 25 31

June July

I I I

~

0 ~

r E ~

CJ shyE 0 0 I

shyr u-cu CJ

E ~

CJ

4

35

30

25

20

15

10

05

Figure 20 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 78 mesh 1981-83

5

4 lI 0

z

E lI 0 3 E-0 0 2 r CJ-cu 0

E lI 1 0

__1981 ~~

~ ___1982

a 01983 5 148 mesh from 65-810

_----shy-- 0 - -- C1) A - _ - ~

~ I

I

II I I I I I

I I

1

~ -

-

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 21 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 mesh- 1981-83

8

70

60

50

40 0

r 30E

0 20E-0 0 10 s= u 8 tV 0 6E 0 4

2

__1981 ____ 1982

_1983

shy--- -- shy--- shy J - -

I

I

C1- J

I

-----l---l ~--~r---------------r--

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 22 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1981-83

_1981

~ __ 1982

~1983

25

00I _ __ _ _ C)~ I __ _ I

I V o 20 rt I I

E I AshyI o E 15-o o z u 10 tU o E I o 5

I

1 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

July August 5

----------------------------------------------------------------

Table 1 Unalakleet River Subsistence King Salmon Index 1983

Number of Number of Date Fishermen Chinook Average

08 02 18 05 05 00 02 58 92 62 72 72 42 28 52 60 62 20 47 50 35 25 15

June 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Totals

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 4 4 4

4

3 1 7 2 2 o 1

23 37 25 29 29 17 11 21 24 25

6 14 15 14 H~

6

322

~

39

---------------------- ---------- --------------------------------------

----------------------------------------------------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983

Daily Proportion Cumu1 Prop Date South North Total of Total Cumulative of Total

64 7 23 30 1313131 313 013131 65 44 187 231 00137 261 01308 66 12 162 174 01305 435 01313 67 8 283 291 1313139 726 01322 68 0000 726 13022 69 3 221 224 013137 950 13029 610 26 245 271 131308 1221 13037 611 56 254 310 131310 1531 131347 612 44 736 780 013 24 2311 13071 613 64 1188 1252 01339 3563 01113 614 59 1752 1811 0056 5374 0166 615 97 844 941 01329 6315 0195 616 165 729 894 0028 7209 0223 617 151 i 604 1755 0054 8964 middot 0277 618 i ll 1524 1635 0051 10599 13328 619 175 2000 2175 0067 12774 13395 620 171 21320 2191 0068 14965 0463 621 220 1613 1833 0057 16798 0520 622 199 2065 2264 0070 19062 0590 623 362 21334 2396 0074 21458 13664 624 876 3403 4279 13133 25737 0797 625 1244 2023 3267- 0101 29004 0898 626 738 1601 2339 0073 31343 0971 627 573 3265 3838 0119 35181 1090 628 547 1868 2415 0075 37596 1165 629 528 4028 4556 0141 42152 1306 630 430 430 0013 42582 1319 71 240 240 01307 42822 1326 72 201 975 1176 0036 43998 1362 73 309 8842 9151 0284 53149 1646 74 475 6385 6860 0213 60009 1859 75 565 3342 3907 0121 63916 1980 76 1377 2094 3471 0108 67387 2088 77 1416 3173 4589 0142 71976 2230 78 1472 1420 2892 0090 74868 2320 79 2071 1452 3523 01113 78391 2430 710 3318 2434 5752 0178 84143 2608 711 2673 2866 5539 13172 89682 2780 712 1665 1747 3412 13106 93094 2886 713 21317 1951 3968 13123 97062 3009 714 2991 2664 5655 0175 102717 3184 715 2646 2548 5194 13161 107911 3345 716 2488 2886 5374 0167 113285 3512 717 1585 4063 5648 0175 118933 3687 718 3559 9326 12885 0400 131818 4087 719 2948 2398 5346 13166 137164 4253 720 1640 3330 4970 0154 142134 4407 721 2416 6420 8836 0274 150970 4681 722 3298 3298 0102 154268 4783 723 5007 5007 0155 159275 4938

40

--------------------------------------------------------------------

--------------------------------------------------------------------

-----------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983 (Continued)

Daily Proportion Cum Prop Date South North Total of Total Cumu1at i ve of Total

724 4005 7804 11809 0366 171084 5304 725 2453 3392 5845 0181 176929 5485 726 2166 12094 14260 0442 191189 5927 727 1914 4472 6386 0198 197575 6125 728 1603 3463 5066 0157 202641 6282 729 1251 1914 3165 0098 205806 6380 730 1710 2495 4205 en30 210011 6510 731 2542 1887 4429 0137 214440 6647 81 4479 2271 6750 0209 221190 6856 82 1103 1806 2909 0091 224099 6947 83 1719 942 2661 0083 226760 bull 7030 84 1519 2557 4076 0126 230836 7156 85 1259 1113 2372 0074 233208 7230 86 940 2189 3129 0097 236337 7327 87 1467 4354 5821 0180 242158 7507 88 2318 1584 3902 0121 246060 7628 89 2098 1505 3603 0112 249663 7740 810 2629 1517 4146 bull 0129 253809 7869 811 3753 1091 4844 0150 258653 8019 812 1489 523 2012 0062 260665 8081 813 744 353 1097 0034 261762 8386 814 981 981 bull 0030 262743 8145 815 2324 2324 0072 265067 8217 816 2638 2638 0082 267705 8299 817 2073 731 2804 0087 270509 8115 818 2244 675 2919 0091 273428 8477 819 3240 696 3936 0122 277364 8599 820 2363 503 2866 0089 280230 8688 821 6789 1111 7900 0245 288130 8933 822 6489 563 7052 0219 295182 9152 823 5077 298 5375 0167 300557 9319 824 2616 298 2914 0090 303471 9409 825 3933 412 4345 0135 307816 9544 826 1393 554 1947 0060 309763 9604 827 1203 463 1666 0052 311429 9656 828 1197 542 1739 0054 313168 9710 829 1244 221 1465 0045 314633 9755 830 1011 199 1210 0038 315843 9793 831 718 214 932 0029 316775 9822 91 1324 318 1642 0052 318417 9874 92 1362 307 1669 0052 320086 9926 93 1146 314 1460 0045 321546 9971 94 652 296 948 bull 0029 322494 10000

148465 174029 322494 10000

41

----------------------------------------------------------------------

-------------------------------------------------------------------- --

------

TABLE 3A Unalakleet River Species Apportionment by Test Period King Salmon 1983

3-Day App Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 76 0272 76 0272

69-612N 28 0100 104 0372

612N-615 461 1652 565 2024

616-619N 419 1502 984 3526

619N-622 170 0609 1154 4135

623-626N 722 2588 1876 6723

626N-629 264 0946 2140 7669

630-73N 103 0639 2243 8038

73N-76 188 0674 2431 8712

77-710N 0 0000 2431 8712

710N-713 0 0000 2431 8712

714-717N 267 0957 2698 9969

717N-720 0 0000 2698 9669

721-724N 92 0331 2790 1 0000

724N-727 0 0000 2790 10000

728-731N 0 0000 2790 1 0000

731N-83 0 0000 2790 1 0000

2790 10000

42

Dates

714-717N

717N-720

721-724N

724N-727

728-731N

731N-83

84-87N

87N-810

811-814N

814N-817

818-821N

821N-824

825-828N

828N-831

91-94

TABLE 3B Unalakleet River Species Apportionment by Test Period Coho Salmon

3-Day Count

583

338

436

550

2650

1174

793

1435

5074

1280

435

2265

171H3

1983

Proportion of Season Total

0000

0000

0000

0343

0199

0256

0323

1558

0690

0466

0843

2983

0752

0256

1331

Cumulative Count

583

921

1357

1907

4557

5731

6524

7959

13033

14313

14748

17013

Cumulative Proportion

0000

0000

0000

0343

0542

0798

1121

2679

3369

3835

4678

7661

8413

8669

10000

43

------------------------------------------------------------------

------------------------------------------------------------------

----- ------

TABLE 3C Unalakleet River Species Apportionment by Test Period Pink Salmon 1983

3-Day P roport ion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 0 0000

6l2N-615 0 0000

616-6l9N 97 0012

6l9N-622 332 0036

623-626N 1245 0136

626N-629 6624 0721

630-73N 3699 0403

73N-76 10762 1171

77-7l0N 7704 0838

710N-7l3 8529 0928

714-717N 9771 1063

717N-720 13845 1507

721-724N 11361 1236

724N-727 6544 0712

728-731N 3545 0386

731N-83 1628 0177

84-87N 1224 0133

87N-810 1777 0193

811-814N 802 0087

814N-817 561 0061

818-821N 533 0058

821N-824 8313 13091

825-828N 468 0051

828N-831 0 0000

91-94 0 0000

91881 10000

0 0000

0 0000

0 0000

97 0012

429 0048

1674 0184

8298 0905

11997 1308

22759 2479

30463 3317

38992 4245

48763 5308

62608 6815

73969 8051

80513 8763

84058 9149

85686 9326

86910 9459

88687 9652

89489 9739

90050 9800

90583 9858

91413 9949

91881 10000

91881 10000

91881 1 0000 44

------------------------------------------------------------------

------------ ------------------------------------------------------

----- ------

TABLE 3D Unalakleet River Species Apportionment by Test Period Chum Salmon 1983

3-Day Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 100 0017

612N-615 268 0046

616-619N 838 0144

619N-622 1180 0202

623-626N 2744 0471

626N-629 1569 0270

630-73N 796 0137

73N-76 2972 0510

77-710N 2068 0355

710N-713 2622 0450

714-717N 4133 0710

717N-720 5596 0960

721-724N 4978 0854

724N-727 8974 1540

728-731N 2241 0385

731N-83 2079 ~0357

84-87N 3009 0516

87N-810 2432 0417

811-814N 937 0161

814N-817 454 0078

818-821N 2584 0443

821N-824 2739 0470

825-828N 1783 0306

828N-831 765 0131

91-94 412 0070

58273 10000 45

0 0000

100 0017

368 0063

1206 0207

2386 0409

5130 0880

6699 1150

7495 1287 f

10467 1797

12535 2152

15157 2602

19290 3312

24886 4272

29864 5216

38838 6666

41079 7051

43158 7408

46167 7924

48559 8341

49536 8502

49990 8580

52574 9023

55313 9493

57096 9799

57861 9930

58273 1 0000

-------------------------------------------------------------

------------------------- ------------------------------------

TABLE 4 Unalakleet River Test Net Proportions by Sample Perio-d 1983 ( Selective CPUE)

Dates Chinook Coho Pink Chum Misc

64-68 105 00 00 895

69-612N 24 00 83 893

612N-615 1C~ 5 00 61 834

616-619N 78 18 156 748

619N-622 23 45 160 772

623-626N 65 112 247 576

626N-629 22 553 131 294

630-73N 16 576 124 284

73N-76 10 572 158 260

77-710N 00 555 149 296

710N-713 00 540 166 294

714-717N 14 00 513 217 256

717N-720 00 00 532 215 253

721-724N 04 00 493 216 287

724N-727 00 18 202 277 503

728-731N 00 23 242 153 582

731N-83 00 30 112 143 715

84-87N 44 98 241 617

87N-810 182 122 167 529

811-814N 139 95 111 655

814N-B17 96 68 55 7B1

B18-B21N 105 39 1B9 667

821N-824 263 43 142 552

825-B28N 145 53 202 600

828N-831 97 00 171 732

91-94 396 00 72 532

46

--------

--------

TABLE 4 Una1ak1et River Test Net Proportions 1983 ( Selective CPUE) (Continued)

Comparative Apportionment

Species Apportionment

Chinook 2790 Coho 17013 Pink 91881 Churn 58273

------shySubtotal 169957

Misc Species 152537 ------shy

Total 322494

Substrate Comparison -------------------shy

Bank Counts -----shy

South 148465 North 174029

------shy

Total 322494

Percent of Total Counts

09 53

285 181

5408

472

1000

Percent

460 540

1000

47

-------------------------------------------------------------------

TABLE 5A Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

May 27 28

21 5 482

13 13

1313

1313 21 5 697

13 13

1313

1313 30 240 0 013 937 0 00 31 246 2 41 1183 2 08

June 1 237 0 00 1420 2 07 2 3

256 585

13 13

013 bull 13 13

1676 2 261

2 2

6bull 13 4

5 6 8

160 120 middot 125

13 1

13 42 130

2 421 2541 2666

~ 2 3 3

bull 13 4 136 136

9 122 0 130 2788 3 05 11 117 00 2905 3 05 12 126 13 00 3031 3 05 13 117 1 43 3148 4 06 15 118 0 013 3266 4 136 16 116 1 43 3382 5 138 18 240 13 130 3622 5 07 19 121 0 00 3743 5 07 20 116 0 00 3859 5 136 22 118 1 42 3977 6 138 23 119 1 42 4196 7 08 25 240 0 013 4336 7 138 26 119 13 1313 4455 7 138 27 119 13 1313 4574 7 138 29 1213 13 130 4694 7 137 313 1213 13 00 4814 7 07

July 2 238 0 1313 51352 7 07 3 118 13 013 51713 7 07 4 118 1 42 5288 8 138 6 122 0 00 5410 8 07 7 116 13 00 5526 8 07

10 126 0 1313 5652 8 07 11 119 0 013 5771 8 07 13 116 13 130 5887 8 07 14 119 2 84 6006 10 07 17 122 0 00 6128 10 07 18 112 0 1313 6240 10 136 20 119 13 00 6359 10 06 21 112 0 013 6471 10 06

6471 10

48

------------------------------------------------------------------

------------------------------------------------------------------

TABLE 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983

Cum Cum Date Hours Catch CPUE Hours Catch CPUE

July 24 26

115 120 0 00

115 235

0 0

00

00 27 117 4 00 352 0 00 29 117 0 137 469 4 34 31 116 3 103 585 7 48

August 2 122 0 00 706 7 40 3 122 2 66 828 9 43 5 118 1 34 946 10 42 7 128 14 437 1074 24 89 9 257 14 218 1331 38 114

10 125 21 672 1456 59 162 12 13 middot- 0 00 1469 x 59 161 14 10 7 12 449 1576 71 180 16 122 2 66 1698 73 172 17 123 6 196 1821 79 174 19 118 1 34 1939 80 165 21 112 6 214 2051 86 168 23 120 3 100 217 1 89 164 24 115 2 70 2286 91 159 26 115 5 174 2401 96 160 28 119 0 00 2520 96 152 30 119 4 1 34 2639 100 152 31 117 1 34 2756 101 147

Sept 2 123 5 33 2879 106 147 4 479 15 125 3358 121 144 6 238 11 185 3596 132 147 7 237 5 84 3833 137 143 8 238 6 1 01 4071 143 141 9 242 10 1 65 4313 153 142

10 242 3 50 4555 156 137 11 242 2 33 4797 158 132 12 241 8 133 5038 166 132 14 227 14 247 5265 180 137 15 242 9 149 5507 189 137 16 210 3 57 5717 192 134 17 239 2 33 5956 194 130 18 230 2 35 6186 196 127 20 489 4 33 6675 200 120 21 24 3 50 6915 203 117 22 242 0 00 7157 203 113 23 234 1 17 7391 204 110

----shy

7391 204

Mesh size = 5 14 from 724 to 810

49

------------------------------------------------------------------

TABLE 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE ------~-----------------------------------------------------------June 16 122 1 33 122 1 33

17 118 0 bull 0 0 240 1 17 20 120 2 67 360 3 33 21 118 0 00 478 3 25 23 119 2 67 597 5 34 24 119 3 102 716 8 45 27 116 19 655 832 27 130 28 120 22 733 952 49 206 30 120 40 1333 1072 89 332

July 1 115 36 1252 1187 125 421 4 122 30 983 1309 155 474 5 114 47 1649 1423 202 568 7 118 30 1016 1541 232 602 8 120 shy 24 800 1661 -$ 256 616

11 122 42 1377 1783 298 669 12 120 29 967 1903 327 687 14 116 37 1276 2019 364 721 15 118 40 1356 2137 404 756 18 121 60 1976 2258 464 822 19 119 30 740 2377 494 831 21 125 61 1952 2502 555 887 22 118 25 847 2627 580 883 25 122 16 525 2749 596 867 26 116 15 517 2865 611 853 28 122 28 918 2987 639 856 29 117 11 376 3104 650 838

August 1 120 7 233 3224 657 815 2 119 9 303 3345 666 796 4 120 3 100 3465 669 772 5 118 5 170 3583 674 752 8 114 7 245 3697 681 734

11 123 7 337 3 82 0 688 720 15 118 2 68 3938 690 701 16 113 5 177 4051 695 686 18 98 3 122 4149 698 673 19 119 1 34 4268 699 655 22 112 0 00 4380 699 638 23 115 0 00 4495 699 622 25 120 2 66 4615 701 606 26 112 1 36 4727 702 594 29 116 0 00 4843 702 580 30 11 5 0 00 4958 702 566

Sept 1 115 0 00 5079 702 553 2 112 0 00 5191 702 541

----shy5079 702

50

-----------------------------------------------------------------

------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

June 5 73 0 00 73 0 00 7 126 0 00 199 0 00 8 127 0 00 326 0 bull 0 0

10 11 4 3 105 440 3 27 12 113 2 71 553 5 36 14 119 1 34 672 6 36 15 116 4 138 788 10 51 17 116 3 103 904 13 56 19 118 6 203 1022 19 74 21 118 0 00 1140 19 67 22 117 10 342 1257 29 92 24 116 3 103 1373 32 93 26 119 11 370 1492 43 115 28 11 8 6 203 1610 $ 49 122 29 115 13 452 1725 62 144

July 1 119 8 269 1844 70 152 3 119 17 571 1963 87 177 5 119 13 437 2082 100 192 6 12 0 17 567 2202 117 213 8 121 7 231 2323 124 214

10 11 4 18 632 2437 142 233 12 115 12 417 2552 154 241 13 116 37 1276 2668 191 286 15 117 16 547 2785 207 297 17 11 8 31 1051 290 3 238 328 19 118 18 610 3021 256 339 20 115 29 1009 3136 285 364 22 122 17 557 3258 302 371 24 115 24 835 3373 326 387 26 120 19 633 3493 345 395 27 117 11 376 3610 356 394 29 117 14 479 3727 370 397 31 116 18 621 3843 388 404

August 2 121 9 298 3964 397 401 3 122 17 557 4086 414 405 5 11 8 8 271 4204 422 402 7 128 19 594 4332 441 407 9 257 10 156 4589 451 393

10 125 14 448 4714 464 394 12 13 1 308 4727 465 393 14 107 5 187 4834 470 389 16 122 4 131 4956 474 383 17 123 15 488 5079 489 385 19 118 8 271 5197 497 383 21 112 3 107 5309 500 378 23 120 6 200 5429 506 373 24 115 7 243 5544 513 370

51

-----------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 (Continued)

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

August 26 115 5 174 5657 518 366 28 119 1 34 577 6 519 359 30 119 4 134 5895 523 355 31 117 0 00 6012 523 3 48

Sept 2 123 3 98 613 5 526 343 4 479 2 17 6614 528 319 6 238 1 17 6852 529 309 7 237 0 00 7089 529 298 8 9

238 242

1 2

17

33 7327 7569

clt

530 532

289 281

10 242 3 50 7811 535 274 11 242 0 00 8053 535 266 12 241 2 33 8294 537 259 14 227 3 53 8521 540 253 15 242 0 00 8763 540 246 16 210 1 19 8973 541 241 17 239 2 33 9212 543 236 18 230 0 00 9442 543 230 20 489 0 00 9931 543 219 21 240 2 33 10171 545 214 22 242 0 0 10413 545 209 23 234 0 00 10647 545 205

----shy

10647 545

52

------------------------------------------------------------------------

------

TABLE 6A Unalakleet River Sonar Site Drift Sets5 1 4n Me sh 19 83 bull

Date Time Result

July 19 1405-1413 1 burbot July 23 1040-1055 1 pink caracass July 27 1520-1530 1 coho August 3 1444-1501 4 coho August 22 1930-1937 0 August 23 937-943 1 coho 1 pink carcass August 26 1117-1127 1 coho 3 churn August 31 1018-1034 3 churn

TABLE 6B Unalakleet River Sonar Site Beach Seines 1983

Date Time Distance Result

July 20 1445 120 meters 4 pink 1 churn 13 Dolly Varden 1 whitefish

July 25 1500 120 meters 6 pink 1 churn 1 Dolly Varden 4 whitefish 1 grayling

July 28 1700 120 meters 4 coho 2 pink 2 churn 1 Dolly Varden

August 1 2010 300 meters 4 pink 3 churn 8 Dolly Varden

August 4 1015 130 meters 5 coho 3 pink 3 churn 65 Dolly Varden 3 whitefish 3 grayling

August 24 1110 130 meters 18 coho 2 Dolly Varden 2 grayling

August 29 1715 120 meters 11 coho 1 pink 69 churn 1 Dolly Varden 2 grayling

Seine done at mile 12 Unalakleet River

53

--------------------------------------------------------------------------------------------------

--------------------------------------------------------------------------------------------------

TABLE 7 AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER CATCH SAMPLE SPORT CATCH AND SPAWNING SURVEYS 1983

II

COMBINED 3-2 4-2 4-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 31 646 6702 5 104 5010 8 167 5688 1 21 5900

Female 17 354 8540 o o 1 21 5450 o o

Total 48 1000 7353 5 104 5010 9 188 5661 1 21 5900

~ 11)

5-2 6-2 7-2 7-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 11 229 7382 6 125 8350 0 0 0 0

Female 2 42 7925 12 250 8742 1 21 10650 1 21 8350

Total 13 271 7465 18 375 8611 1 21 10650 1 21 8350

TABLE 8A AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER TEST NET SAMPLE 1983

-----~-------------------------------------------------------------------------------------------------------

gt

COMBINED 4-2 5-2 5-3 6-2 7-2 NO LENGIH NO LENGIH NO LENGIH NO LENGTH NO LENGTH NO LENGTr

8 14 n

Male 3 333 8107 0 1 111 5800 o 0 2 222 9260 0 0 Female 6 667 8295 0 0 1 111 7600 o o 4 444 8310 1 111 8930 Total 9 10 e 0 8232 0 o 2 222 6700 o o 6 667 8627 1 111 8930

If) If)

5 14 Male 19 1000 6298 12 632 5392 4 211 6990 0 o 3 158 8997 0 0 Female o 0 o o o o o o 0 0 0 0 Total 19 1000 6298 12 632 5392 4 211 6990 o o 3 158 8997 0 0

4 n or Smaller Male 6 667 5930 1 111 4660 2 222 6325 3 333 6090 0 o 0 o Female 3 333 8970 o o o o o o 3 333 8970 0 o Total 9 1000 6943 1 111 466 2 222 6325 3 33 3 6090 3 33 3 8970 0 0

TOTAL Hale 28 757 6413 13 351 5336 7 189 6630 3 8 1 6090 5 13 5 9102 o 0 Female 9 243 852 o o 1 27 7600 o o 7 189 8593 1 2 7 8930 Total 37 1000 6925 13 351 5336 8 216 6751 3 8 1 6090 12 324 88 e 5 1 2 7 8930

---------------------------------------------------------------------------------------------------------

---------------------------------------------------------------------------------------------------------

TABLE 8B AGE SEX AND SIZE COMPOSITION OF NORTON SOUND COHO SALMON UNALAKLEET RIVER TEST NET SAMPLE 5 14 AND 5 78 GEAR 1983

COMBINED 3-2 4-3 4-4 5-4 NO LENGIH NO LENGIH NO LENGTH NO LENGIH NO LENGTH

Male 9 900 5489 0 0 9 900 5489 0 0 Female 1 10 bull 0 552 QJ QJ 0 1 10QJ 5520 0 0 Total 10 1000 5492 0 0 10 1000 5492 0 0 725-731

bull LI)Male 15 938 5645 15 938 5645 Female 1 62 575 QJ 1 62 575 QJ Total 16 lQJ0QJ 5651 16 100QJ 5651 81-87

Male 24 545 5668 23 523 5768 1 23 3350 Female 20 455 5631 20 455 5631 0 0 Total 441QJ0QJ 5651 43 977 57 QJ 4 1 23 335 QJ 88-814

Male 7 500 5797 7 500 5797 QJ 0 Female 7 500 5596 6 429 5587 1 71 5650 Total 14 1000 5696 13 929 1 71 5650570 815-821

Male 5 455 5492 5 455 5492 Female 6 545 5552 6 545 5552 Total 11 lQJ00 5525 11 100QJ 5525 822-828

lt

Son sr

Fig u r e 2 S 0 0 a r Sit eSc hem a tic

ITower

Original Ninth Bank Sonar

Drift sets 5 minutes

Lf)

So t h Ban k Son a

lTower

o Work Tent

B Living Quarters

Figure 3Unalakleet Subsistence Survey 1983

Kin g- S a I m 0 n

1bull

10

9

c 8aI

-lE 11 t a til 7 ~ II 6 ~ U

5 til

0

c 4 til til

E 3 I

1 V

~ 2

1

27 1 5 10 15 20 25 30

~ June

Figure 4A Specie apportionment king salmon Un-alakleet sonar 1983

~

25

-l20

c 1 5 III () III

11

10

5

I

J

27 31 5 10 15 20 25 30 5 10 15 20 25 31

June Ju Iy

Figure 4B Specie middotapp~~tionment coho salmon Unalakleet sonar 1983

30

25

co ~

20

1 t~

C $

u 1 5 CD a

10

5

5 10 15 20 25 31 5 10 15 20 25 31 5

Ju August Sept e

Figure 4C Specie apportionment pink salmon Unalakleet sonar 1983

1 6

1 5

14

1 3

12

1 1

c II U CII

Ashy

10

9

a

7

01 ~

6

5

4

3

2

1

1 5 10 1 5

June

2 O 25 30 5 10 15 20

Ju Iy

25 31 5 10 15 20

August

25 31 5 10

Septem

Figure 40 Species apportionment chum salmon Unalakleet sonar 1983

16

1 5

1 4

13

1 2

1 1

10

9 c 8GI U

GI middot7 A

6

5

4

3

2

1

~

o N

~

1 5 10 15 20 25 30 5 10 15 20 25 3 1 5 10 15 20 25 31 5 10

June Ju Iy August Sept e

Figure 5 Specie apportionment Unalakleet sonar 1983

50

4

40

35

c J 30 0 U

~ 0 25 0 c Q)

u ~

Q) 20a

15

10

5

o L-_lt---__

King Coho Pink Chum Misc

21

----

Figure 6 Sector distribution of counts Unalakleet sonar1983

35

30

25

c 20 G)

() G) 15

0

10

5

35

30

25 c G)

() 20

G)

0 15

10

5

( s ()u t h ban k )

July 3-5

~-2 4 6 8 1 0 1 2 1 4 1 6shy

Sector

August 21-23

2 4 6 8 10 12 14 16

Sector

22

Figure 7 Hourly distribution of counts Unalakleet sonar 1983

(south bank)

14

12

10

c 8 GI U ~

6

July 3-5

~GI

I =~ Q

4

2 0

2 4 6 8 10 12 14 1 6 18 20 22 24

TIme

9

8

7

6

5 c GI U ~ 4 GI

Q

3

2

August 21-23

1

0

2 4 6 8 10 12 14

TIme

16

23

18 20 22 24

Figure 8 Unalakleet River Test Fishing Daily King CPUE in 8 14 mesh 1983

10

9 N

8 shy

7 I 0 c 6E

n

l J I I

0 0 5 c (J 4 co 0

3

2

1

I I

27 1 5 10 15 20 25 1 5 10 15 20 25 31

~ June July

Figure 9 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1983bull

~

middot10

09 U N

I 08 0 c 07E I ()

- 06 E-0 0 05 shy~ () 04 ca - ()

03E I 0 02

01

27 1 5 10 15 2Q 25 1 5 10 15 20 25 31

June July

Figure 10 Unalakleet River Test Fishing Daily Coho CPUE in 5 78 mesh 1983

1

6

5

I 0

NI II I 0 t

E 4

0 0 c 3() cu 0

2

1

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sept U

Figure 11 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1983

200

175

150

I 0 c 125E I ()

E

r-shy-0 I I N 0 100 c ()-as ()

75E I 0

50

25

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sel ber

20

Figure 12 Unalakleet River Test Fishing Daily Pink CPUE in 4 mesh 1983

18

I

0) N

II

16

I ishy

14 J 0 t 12shyE 0 10 0 shys 8 () as

0 6 1 I V 4

2

~ I

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

--

Figure 13 Unalakleet River Test Fishing Cumulat ive Pink CPUE in 4 mesh 1983

10

9 01 N 8

J 0 J 7 E J 0 6 E- 50 ~

amp 4() ca

0 3 E J

0 2

1

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

Figure 14 Unalakleet River Test Fishing Daily CPUE in 5 14 amp 5 78 mesh 1983

14

13shy

12

11

10

9 J 0 8

I z shy-E 7 0 0 shys ~u aI 0

4 I

31

2

1

II

0 C1)I 11

I I I II

bull y AA(net changed to 5 78

AA A 11 I

~ I~ V ~

- I

VI

1 5 10 15 20- 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

cJune July August

Figure 15 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 14 amp 5 78 mesh 1983

It

5

--l C)

net changed to 5 78

~ 4 o

c E (J ~

3E o o c 2 u ~ -(J

E ~ (J 1

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 16 Unalakleet River Test Fishing Catch Proportions 1983

60

55

---- King50

__ Coho 45

P--Q Pink

40 __ Chum

I LU 35J D I 0

30 ICQ 0 25 I

N Cl0 20

c G)

15u G)

D

10

5 A 1 I

I 4 I

I I

3 lt

~

2

I I1 - I bull I

I ~ ~ ~ t -J ~~ - _

r

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 17 Unalakleet Area Temperatures 1983

18

16

14

12

til 10I

u-G) 80 CI) G) G) 6 C) G)

Q 4

2

C) C)

__ Air

0--0 River 2

0

-2

-4

---------~ ~

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August 5e

4

Figure 18 Unalakleet River Turbidity and Depth 1983

__ Secchi Reading

-t ()

II) G)-G)

3

iE 2

1

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August

~ 1 _ ~ r--- I shy I __ I 01 --shy

Figure 19 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1981-83

27 31 5

May

_1981

____ 1982

o 0 1983 11) C)

Changed to 5 78 mesh

I

t

~-~o-~ Q-O--Oolt)-(IQ-----l

--1

_10 15 20 25 30 5 10 15 20 25 31

June July

I I I

~

0 ~

r E ~

CJ shyE 0 0 I

shyr u-cu CJ

E ~

CJ

4

35

30

25

20

15

10

05

Figure 20 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 78 mesh 1981-83

5

4 lI 0

z

E lI 0 3 E-0 0 2 r CJ-cu 0

E lI 1 0

__1981 ~~

~ ___1982

a 01983 5 148 mesh from 65-810

_----shy-- 0 - -- C1) A - _ - ~

~ I

I

II I I I I I

I I

1

~ -

-

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 21 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 mesh- 1981-83

8

70

60

50

40 0

r 30E

0 20E-0 0 10 s= u 8 tV 0 6E 0 4

2

__1981 ____ 1982

_1983

shy--- -- shy--- shy J - -

I

I

C1- J

I

-----l---l ~--~r---------------r--

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 22 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1981-83

_1981

~ __ 1982

~1983

25

00I _ __ _ _ C)~ I __ _ I

I V o 20 rt I I

E I AshyI o E 15-o o z u 10 tU o E I o 5

I

1 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

July August 5

----------------------------------------------------------------

Table 1 Unalakleet River Subsistence King Salmon Index 1983

Number of Number of Date Fishermen Chinook Average

08 02 18 05 05 00 02 58 92 62 72 72 42 28 52 60 62 20 47 50 35 25 15

June 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Totals

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 4 4 4

4

3 1 7 2 2 o 1

23 37 25 29 29 17 11 21 24 25

6 14 15 14 H~

6

322

~

39

---------------------- ---------- --------------------------------------

----------------------------------------------------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983

Daily Proportion Cumu1 Prop Date South North Total of Total Cumulative of Total

64 7 23 30 1313131 313 013131 65 44 187 231 00137 261 01308 66 12 162 174 01305 435 01313 67 8 283 291 1313139 726 01322 68 0000 726 13022 69 3 221 224 013137 950 13029 610 26 245 271 131308 1221 13037 611 56 254 310 131310 1531 131347 612 44 736 780 013 24 2311 13071 613 64 1188 1252 01339 3563 01113 614 59 1752 1811 0056 5374 0166 615 97 844 941 01329 6315 0195 616 165 729 894 0028 7209 0223 617 151 i 604 1755 0054 8964 middot 0277 618 i ll 1524 1635 0051 10599 13328 619 175 2000 2175 0067 12774 13395 620 171 21320 2191 0068 14965 0463 621 220 1613 1833 0057 16798 0520 622 199 2065 2264 0070 19062 0590 623 362 21334 2396 0074 21458 13664 624 876 3403 4279 13133 25737 0797 625 1244 2023 3267- 0101 29004 0898 626 738 1601 2339 0073 31343 0971 627 573 3265 3838 0119 35181 1090 628 547 1868 2415 0075 37596 1165 629 528 4028 4556 0141 42152 1306 630 430 430 0013 42582 1319 71 240 240 01307 42822 1326 72 201 975 1176 0036 43998 1362 73 309 8842 9151 0284 53149 1646 74 475 6385 6860 0213 60009 1859 75 565 3342 3907 0121 63916 1980 76 1377 2094 3471 0108 67387 2088 77 1416 3173 4589 0142 71976 2230 78 1472 1420 2892 0090 74868 2320 79 2071 1452 3523 01113 78391 2430 710 3318 2434 5752 0178 84143 2608 711 2673 2866 5539 13172 89682 2780 712 1665 1747 3412 13106 93094 2886 713 21317 1951 3968 13123 97062 3009 714 2991 2664 5655 0175 102717 3184 715 2646 2548 5194 13161 107911 3345 716 2488 2886 5374 0167 113285 3512 717 1585 4063 5648 0175 118933 3687 718 3559 9326 12885 0400 131818 4087 719 2948 2398 5346 13166 137164 4253 720 1640 3330 4970 0154 142134 4407 721 2416 6420 8836 0274 150970 4681 722 3298 3298 0102 154268 4783 723 5007 5007 0155 159275 4938

40

--------------------------------------------------------------------

--------------------------------------------------------------------

-----------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983 (Continued)

Daily Proportion Cum Prop Date South North Total of Total Cumu1at i ve of Total

724 4005 7804 11809 0366 171084 5304 725 2453 3392 5845 0181 176929 5485 726 2166 12094 14260 0442 191189 5927 727 1914 4472 6386 0198 197575 6125 728 1603 3463 5066 0157 202641 6282 729 1251 1914 3165 0098 205806 6380 730 1710 2495 4205 en30 210011 6510 731 2542 1887 4429 0137 214440 6647 81 4479 2271 6750 0209 221190 6856 82 1103 1806 2909 0091 224099 6947 83 1719 942 2661 0083 226760 bull 7030 84 1519 2557 4076 0126 230836 7156 85 1259 1113 2372 0074 233208 7230 86 940 2189 3129 0097 236337 7327 87 1467 4354 5821 0180 242158 7507 88 2318 1584 3902 0121 246060 7628 89 2098 1505 3603 0112 249663 7740 810 2629 1517 4146 bull 0129 253809 7869 811 3753 1091 4844 0150 258653 8019 812 1489 523 2012 0062 260665 8081 813 744 353 1097 0034 261762 8386 814 981 981 bull 0030 262743 8145 815 2324 2324 0072 265067 8217 816 2638 2638 0082 267705 8299 817 2073 731 2804 0087 270509 8115 818 2244 675 2919 0091 273428 8477 819 3240 696 3936 0122 277364 8599 820 2363 503 2866 0089 280230 8688 821 6789 1111 7900 0245 288130 8933 822 6489 563 7052 0219 295182 9152 823 5077 298 5375 0167 300557 9319 824 2616 298 2914 0090 303471 9409 825 3933 412 4345 0135 307816 9544 826 1393 554 1947 0060 309763 9604 827 1203 463 1666 0052 311429 9656 828 1197 542 1739 0054 313168 9710 829 1244 221 1465 0045 314633 9755 830 1011 199 1210 0038 315843 9793 831 718 214 932 0029 316775 9822 91 1324 318 1642 0052 318417 9874 92 1362 307 1669 0052 320086 9926 93 1146 314 1460 0045 321546 9971 94 652 296 948 bull 0029 322494 10000

148465 174029 322494 10000

41

----------------------------------------------------------------------

-------------------------------------------------------------------- --

------

TABLE 3A Unalakleet River Species Apportionment by Test Period King Salmon 1983

3-Day App Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 76 0272 76 0272

69-612N 28 0100 104 0372

612N-615 461 1652 565 2024

616-619N 419 1502 984 3526

619N-622 170 0609 1154 4135

623-626N 722 2588 1876 6723

626N-629 264 0946 2140 7669

630-73N 103 0639 2243 8038

73N-76 188 0674 2431 8712

77-710N 0 0000 2431 8712

710N-713 0 0000 2431 8712

714-717N 267 0957 2698 9969

717N-720 0 0000 2698 9669

721-724N 92 0331 2790 1 0000

724N-727 0 0000 2790 10000

728-731N 0 0000 2790 1 0000

731N-83 0 0000 2790 1 0000

2790 10000

42

Dates

714-717N

717N-720

721-724N

724N-727

728-731N

731N-83

84-87N

87N-810

811-814N

814N-817

818-821N

821N-824

825-828N

828N-831

91-94

TABLE 3B Unalakleet River Species Apportionment by Test Period Coho Salmon

3-Day Count

583

338

436

550

2650

1174

793

1435

5074

1280

435

2265

171H3

1983

Proportion of Season Total

0000

0000

0000

0343

0199

0256

0323

1558

0690

0466

0843

2983

0752

0256

1331

Cumulative Count

583

921

1357

1907

4557

5731

6524

7959

13033

14313

14748

17013

Cumulative Proportion

0000

0000

0000

0343

0542

0798

1121

2679

3369

3835

4678

7661

8413

8669

10000

43

------------------------------------------------------------------

------------------------------------------------------------------

----- ------

TABLE 3C Unalakleet River Species Apportionment by Test Period Pink Salmon 1983

3-Day P roport ion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 0 0000

6l2N-615 0 0000

616-6l9N 97 0012

6l9N-622 332 0036

623-626N 1245 0136

626N-629 6624 0721

630-73N 3699 0403

73N-76 10762 1171

77-7l0N 7704 0838

710N-7l3 8529 0928

714-717N 9771 1063

717N-720 13845 1507

721-724N 11361 1236

724N-727 6544 0712

728-731N 3545 0386

731N-83 1628 0177

84-87N 1224 0133

87N-810 1777 0193

811-814N 802 0087

814N-817 561 0061

818-821N 533 0058

821N-824 8313 13091

825-828N 468 0051

828N-831 0 0000

91-94 0 0000

91881 10000

0 0000

0 0000

0 0000

97 0012

429 0048

1674 0184

8298 0905

11997 1308

22759 2479

30463 3317

38992 4245

48763 5308

62608 6815

73969 8051

80513 8763

84058 9149

85686 9326

86910 9459

88687 9652

89489 9739

90050 9800

90583 9858

91413 9949

91881 10000

91881 10000

91881 1 0000 44

------------------------------------------------------------------

------------ ------------------------------------------------------

----- ------

TABLE 3D Unalakleet River Species Apportionment by Test Period Chum Salmon 1983

3-Day Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 100 0017

612N-615 268 0046

616-619N 838 0144

619N-622 1180 0202

623-626N 2744 0471

626N-629 1569 0270

630-73N 796 0137

73N-76 2972 0510

77-710N 2068 0355

710N-713 2622 0450

714-717N 4133 0710

717N-720 5596 0960

721-724N 4978 0854

724N-727 8974 1540

728-731N 2241 0385

731N-83 2079 ~0357

84-87N 3009 0516

87N-810 2432 0417

811-814N 937 0161

814N-817 454 0078

818-821N 2584 0443

821N-824 2739 0470

825-828N 1783 0306

828N-831 765 0131

91-94 412 0070

58273 10000 45

0 0000

100 0017

368 0063

1206 0207

2386 0409

5130 0880

6699 1150

7495 1287 f

10467 1797

12535 2152

15157 2602

19290 3312

24886 4272

29864 5216

38838 6666

41079 7051

43158 7408

46167 7924

48559 8341

49536 8502

49990 8580

52574 9023

55313 9493

57096 9799

57861 9930

58273 1 0000

-------------------------------------------------------------

------------------------- ------------------------------------

TABLE 4 Unalakleet River Test Net Proportions by Sample Perio-d 1983 ( Selective CPUE)

Dates Chinook Coho Pink Chum Misc

64-68 105 00 00 895

69-612N 24 00 83 893

612N-615 1C~ 5 00 61 834

616-619N 78 18 156 748

619N-622 23 45 160 772

623-626N 65 112 247 576

626N-629 22 553 131 294

630-73N 16 576 124 284

73N-76 10 572 158 260

77-710N 00 555 149 296

710N-713 00 540 166 294

714-717N 14 00 513 217 256

717N-720 00 00 532 215 253

721-724N 04 00 493 216 287

724N-727 00 18 202 277 503

728-731N 00 23 242 153 582

731N-83 00 30 112 143 715

84-87N 44 98 241 617

87N-810 182 122 167 529

811-814N 139 95 111 655

814N-B17 96 68 55 7B1

B18-B21N 105 39 1B9 667

821N-824 263 43 142 552

825-B28N 145 53 202 600

828N-831 97 00 171 732

91-94 396 00 72 532

46

--------

--------

TABLE 4 Una1ak1et River Test Net Proportions 1983 ( Selective CPUE) (Continued)

Comparative Apportionment

Species Apportionment

Chinook 2790 Coho 17013 Pink 91881 Churn 58273

------shySubtotal 169957

Misc Species 152537 ------shy

Total 322494

Substrate Comparison -------------------shy

Bank Counts -----shy

South 148465 North 174029

------shy

Total 322494

Percent of Total Counts

09 53

285 181

5408

472

1000

Percent

460 540

1000

47

-------------------------------------------------------------------

TABLE 5A Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

May 27 28

21 5 482

13 13

1313

1313 21 5 697

13 13

1313

1313 30 240 0 013 937 0 00 31 246 2 41 1183 2 08

June 1 237 0 00 1420 2 07 2 3

256 585

13 13

013 bull 13 13

1676 2 261

2 2

6bull 13 4

5 6 8

160 120 middot 125

13 1

13 42 130

2 421 2541 2666

~ 2 3 3

bull 13 4 136 136

9 122 0 130 2788 3 05 11 117 00 2905 3 05 12 126 13 00 3031 3 05 13 117 1 43 3148 4 06 15 118 0 013 3266 4 136 16 116 1 43 3382 5 138 18 240 13 130 3622 5 07 19 121 0 00 3743 5 07 20 116 0 00 3859 5 136 22 118 1 42 3977 6 138 23 119 1 42 4196 7 08 25 240 0 013 4336 7 138 26 119 13 1313 4455 7 138 27 119 13 1313 4574 7 138 29 1213 13 130 4694 7 137 313 1213 13 00 4814 7 07

July 2 238 0 1313 51352 7 07 3 118 13 013 51713 7 07 4 118 1 42 5288 8 138 6 122 0 00 5410 8 07 7 116 13 00 5526 8 07

10 126 0 1313 5652 8 07 11 119 0 013 5771 8 07 13 116 13 130 5887 8 07 14 119 2 84 6006 10 07 17 122 0 00 6128 10 07 18 112 0 1313 6240 10 136 20 119 13 00 6359 10 06 21 112 0 013 6471 10 06

6471 10

48

------------------------------------------------------------------

------------------------------------------------------------------

TABLE 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983

Cum Cum Date Hours Catch CPUE Hours Catch CPUE

July 24 26

115 120 0 00

115 235

0 0

00

00 27 117 4 00 352 0 00 29 117 0 137 469 4 34 31 116 3 103 585 7 48

August 2 122 0 00 706 7 40 3 122 2 66 828 9 43 5 118 1 34 946 10 42 7 128 14 437 1074 24 89 9 257 14 218 1331 38 114

10 125 21 672 1456 59 162 12 13 middot- 0 00 1469 x 59 161 14 10 7 12 449 1576 71 180 16 122 2 66 1698 73 172 17 123 6 196 1821 79 174 19 118 1 34 1939 80 165 21 112 6 214 2051 86 168 23 120 3 100 217 1 89 164 24 115 2 70 2286 91 159 26 115 5 174 2401 96 160 28 119 0 00 2520 96 152 30 119 4 1 34 2639 100 152 31 117 1 34 2756 101 147

Sept 2 123 5 33 2879 106 147 4 479 15 125 3358 121 144 6 238 11 185 3596 132 147 7 237 5 84 3833 137 143 8 238 6 1 01 4071 143 141 9 242 10 1 65 4313 153 142

10 242 3 50 4555 156 137 11 242 2 33 4797 158 132 12 241 8 133 5038 166 132 14 227 14 247 5265 180 137 15 242 9 149 5507 189 137 16 210 3 57 5717 192 134 17 239 2 33 5956 194 130 18 230 2 35 6186 196 127 20 489 4 33 6675 200 120 21 24 3 50 6915 203 117 22 242 0 00 7157 203 113 23 234 1 17 7391 204 110

----shy

7391 204

Mesh size = 5 14 from 724 to 810

49

------------------------------------------------------------------

TABLE 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE ------~-----------------------------------------------------------June 16 122 1 33 122 1 33

17 118 0 bull 0 0 240 1 17 20 120 2 67 360 3 33 21 118 0 00 478 3 25 23 119 2 67 597 5 34 24 119 3 102 716 8 45 27 116 19 655 832 27 130 28 120 22 733 952 49 206 30 120 40 1333 1072 89 332

July 1 115 36 1252 1187 125 421 4 122 30 983 1309 155 474 5 114 47 1649 1423 202 568 7 118 30 1016 1541 232 602 8 120 shy 24 800 1661 -$ 256 616

11 122 42 1377 1783 298 669 12 120 29 967 1903 327 687 14 116 37 1276 2019 364 721 15 118 40 1356 2137 404 756 18 121 60 1976 2258 464 822 19 119 30 740 2377 494 831 21 125 61 1952 2502 555 887 22 118 25 847 2627 580 883 25 122 16 525 2749 596 867 26 116 15 517 2865 611 853 28 122 28 918 2987 639 856 29 117 11 376 3104 650 838

August 1 120 7 233 3224 657 815 2 119 9 303 3345 666 796 4 120 3 100 3465 669 772 5 118 5 170 3583 674 752 8 114 7 245 3697 681 734

11 123 7 337 3 82 0 688 720 15 118 2 68 3938 690 701 16 113 5 177 4051 695 686 18 98 3 122 4149 698 673 19 119 1 34 4268 699 655 22 112 0 00 4380 699 638 23 115 0 00 4495 699 622 25 120 2 66 4615 701 606 26 112 1 36 4727 702 594 29 116 0 00 4843 702 580 30 11 5 0 00 4958 702 566

Sept 1 115 0 00 5079 702 553 2 112 0 00 5191 702 541

----shy5079 702

50

-----------------------------------------------------------------

------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

June 5 73 0 00 73 0 00 7 126 0 00 199 0 00 8 127 0 00 326 0 bull 0 0

10 11 4 3 105 440 3 27 12 113 2 71 553 5 36 14 119 1 34 672 6 36 15 116 4 138 788 10 51 17 116 3 103 904 13 56 19 118 6 203 1022 19 74 21 118 0 00 1140 19 67 22 117 10 342 1257 29 92 24 116 3 103 1373 32 93 26 119 11 370 1492 43 115 28 11 8 6 203 1610 $ 49 122 29 115 13 452 1725 62 144

July 1 119 8 269 1844 70 152 3 119 17 571 1963 87 177 5 119 13 437 2082 100 192 6 12 0 17 567 2202 117 213 8 121 7 231 2323 124 214

10 11 4 18 632 2437 142 233 12 115 12 417 2552 154 241 13 116 37 1276 2668 191 286 15 117 16 547 2785 207 297 17 11 8 31 1051 290 3 238 328 19 118 18 610 3021 256 339 20 115 29 1009 3136 285 364 22 122 17 557 3258 302 371 24 115 24 835 3373 326 387 26 120 19 633 3493 345 395 27 117 11 376 3610 356 394 29 117 14 479 3727 370 397 31 116 18 621 3843 388 404

August 2 121 9 298 3964 397 401 3 122 17 557 4086 414 405 5 11 8 8 271 4204 422 402 7 128 19 594 4332 441 407 9 257 10 156 4589 451 393

10 125 14 448 4714 464 394 12 13 1 308 4727 465 393 14 107 5 187 4834 470 389 16 122 4 131 4956 474 383 17 123 15 488 5079 489 385 19 118 8 271 5197 497 383 21 112 3 107 5309 500 378 23 120 6 200 5429 506 373 24 115 7 243 5544 513 370

51

-----------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 (Continued)

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

August 26 115 5 174 5657 518 366 28 119 1 34 577 6 519 359 30 119 4 134 5895 523 355 31 117 0 00 6012 523 3 48

Sept 2 123 3 98 613 5 526 343 4 479 2 17 6614 528 319 6 238 1 17 6852 529 309 7 237 0 00 7089 529 298 8 9

238 242

1 2

17

33 7327 7569

clt

530 532

289 281

10 242 3 50 7811 535 274 11 242 0 00 8053 535 266 12 241 2 33 8294 537 259 14 227 3 53 8521 540 253 15 242 0 00 8763 540 246 16 210 1 19 8973 541 241 17 239 2 33 9212 543 236 18 230 0 00 9442 543 230 20 489 0 00 9931 543 219 21 240 2 33 10171 545 214 22 242 0 0 10413 545 209 23 234 0 00 10647 545 205

----shy

10647 545

52

------------------------------------------------------------------------

------

TABLE 6A Unalakleet River Sonar Site Drift Sets5 1 4n Me sh 19 83 bull

Date Time Result

July 19 1405-1413 1 burbot July 23 1040-1055 1 pink caracass July 27 1520-1530 1 coho August 3 1444-1501 4 coho August 22 1930-1937 0 August 23 937-943 1 coho 1 pink carcass August 26 1117-1127 1 coho 3 churn August 31 1018-1034 3 churn

TABLE 6B Unalakleet River Sonar Site Beach Seines 1983

Date Time Distance Result

July 20 1445 120 meters 4 pink 1 churn 13 Dolly Varden 1 whitefish

July 25 1500 120 meters 6 pink 1 churn 1 Dolly Varden 4 whitefish 1 grayling

July 28 1700 120 meters 4 coho 2 pink 2 churn 1 Dolly Varden

August 1 2010 300 meters 4 pink 3 churn 8 Dolly Varden

August 4 1015 130 meters 5 coho 3 pink 3 churn 65 Dolly Varden 3 whitefish 3 grayling

August 24 1110 130 meters 18 coho 2 Dolly Varden 2 grayling

August 29 1715 120 meters 11 coho 1 pink 69 churn 1 Dolly Varden 2 grayling

Seine done at mile 12 Unalakleet River

53

--------------------------------------------------------------------------------------------------

--------------------------------------------------------------------------------------------------

TABLE 7 AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER CATCH SAMPLE SPORT CATCH AND SPAWNING SURVEYS 1983

II

COMBINED 3-2 4-2 4-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 31 646 6702 5 104 5010 8 167 5688 1 21 5900

Female 17 354 8540 o o 1 21 5450 o o

Total 48 1000 7353 5 104 5010 9 188 5661 1 21 5900

~ 11)

5-2 6-2 7-2 7-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 11 229 7382 6 125 8350 0 0 0 0

Female 2 42 7925 12 250 8742 1 21 10650 1 21 8350

Total 13 271 7465 18 375 8611 1 21 10650 1 21 8350

TABLE 8A AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER TEST NET SAMPLE 1983

-----~-------------------------------------------------------------------------------------------------------

gt

COMBINED 4-2 5-2 5-3 6-2 7-2 NO LENGIH NO LENGIH NO LENGIH NO LENGTH NO LENGTH NO LENGTr

8 14 n

Male 3 333 8107 0 1 111 5800 o 0 2 222 9260 0 0 Female 6 667 8295 0 0 1 111 7600 o o 4 444 8310 1 111 8930 Total 9 10 e 0 8232 0 o 2 222 6700 o o 6 667 8627 1 111 8930

If) If)

5 14 Male 19 1000 6298 12 632 5392 4 211 6990 0 o 3 158 8997 0 0 Female o 0 o o o o o o 0 0 0 0 Total 19 1000 6298 12 632 5392 4 211 6990 o o 3 158 8997 0 0

4 n or Smaller Male 6 667 5930 1 111 4660 2 222 6325 3 333 6090 0 o 0 o Female 3 333 8970 o o o o o o 3 333 8970 0 o Total 9 1000 6943 1 111 466 2 222 6325 3 33 3 6090 3 33 3 8970 0 0

TOTAL Hale 28 757 6413 13 351 5336 7 189 6630 3 8 1 6090 5 13 5 9102 o 0 Female 9 243 852 o o 1 27 7600 o o 7 189 8593 1 2 7 8930 Total 37 1000 6925 13 351 5336 8 216 6751 3 8 1 6090 12 324 88 e 5 1 2 7 8930

---------------------------------------------------------------------------------------------------------

---------------------------------------------------------------------------------------------------------

TABLE 8B AGE SEX AND SIZE COMPOSITION OF NORTON SOUND COHO SALMON UNALAKLEET RIVER TEST NET SAMPLE 5 14 AND 5 78 GEAR 1983

COMBINED 3-2 4-3 4-4 5-4 NO LENGIH NO LENGIH NO LENGTH NO LENGIH NO LENGTH

Male 9 900 5489 0 0 9 900 5489 0 0 Female 1 10 bull 0 552 QJ QJ 0 1 10QJ 5520 0 0 Total 10 1000 5492 0 0 10 1000 5492 0 0 725-731

bull LI)Male 15 938 5645 15 938 5645 Female 1 62 575 QJ 1 62 575 QJ Total 16 lQJ0QJ 5651 16 100QJ 5651 81-87

Male 24 545 5668 23 523 5768 1 23 3350 Female 20 455 5631 20 455 5631 0 0 Total 441QJ0QJ 5651 43 977 57 QJ 4 1 23 335 QJ 88-814

Male 7 500 5797 7 500 5797 QJ 0 Female 7 500 5596 6 429 5587 1 71 5650 Total 14 1000 5696 13 929 1 71 5650570 815-821

Male 5 455 5492 5 455 5492 Female 6 545 5552 6 545 5552 Total 11 lQJ00 5525 11 100QJ 5525 822-828

Figure 3Unalakleet Subsistence Survey 1983

Kin g- S a I m 0 n

1bull

10

9

c 8aI

-lE 11 t a til 7 ~ II 6 ~ U

5 til

0

c 4 til til

E 3 I

1 V

~ 2

1

27 1 5 10 15 20 25 30

~ June

Figure 4A Specie apportionment king salmon Un-alakleet sonar 1983

~

25

-l20

c 1 5 III () III

11

10

5

I

J

27 31 5 10 15 20 25 30 5 10 15 20 25 31

June Ju Iy

Figure 4B Specie middotapp~~tionment coho salmon Unalakleet sonar 1983

30

25

co ~

20

1 t~

C $

u 1 5 CD a

10

5

5 10 15 20 25 31 5 10 15 20 25 31 5

Ju August Sept e

Figure 4C Specie apportionment pink salmon Unalakleet sonar 1983

1 6

1 5

14

1 3

12

1 1

c II U CII

Ashy

10

9

a

7

01 ~

6

5

4

3

2

1

1 5 10 1 5

June

2 O 25 30 5 10 15 20

Ju Iy

25 31 5 10 15 20

August

25 31 5 10

Septem

Figure 40 Species apportionment chum salmon Unalakleet sonar 1983

16

1 5

1 4

13

1 2

1 1

10

9 c 8GI U

GI middot7 A

6

5

4

3

2

1

~

o N

~

1 5 10 15 20 25 30 5 10 15 20 25 3 1 5 10 15 20 25 31 5 10

June Ju Iy August Sept e

Figure 5 Specie apportionment Unalakleet sonar 1983

50

4

40

35

c J 30 0 U

~ 0 25 0 c Q)

u ~

Q) 20a

15

10

5

o L-_lt---__

King Coho Pink Chum Misc

21

----

Figure 6 Sector distribution of counts Unalakleet sonar1983

35

30

25

c 20 G)

() G) 15

0

10

5

35

30

25 c G)

() 20

G)

0 15

10

5

( s ()u t h ban k )

July 3-5

~-2 4 6 8 1 0 1 2 1 4 1 6shy

Sector

August 21-23

2 4 6 8 10 12 14 16

Sector

22

Figure 7 Hourly distribution of counts Unalakleet sonar 1983

(south bank)

14

12

10

c 8 GI U ~

6

July 3-5

~GI

I =~ Q

4

2 0

2 4 6 8 10 12 14 1 6 18 20 22 24

TIme

9

8

7

6

5 c GI U ~ 4 GI

Q

3

2

August 21-23

1

0

2 4 6 8 10 12 14

TIme

16

23

18 20 22 24

Figure 8 Unalakleet River Test Fishing Daily King CPUE in 8 14 mesh 1983

10

9 N

8 shy

7 I 0 c 6E

n

l J I I

0 0 5 c (J 4 co 0

3

2

1

I I

27 1 5 10 15 20 25 1 5 10 15 20 25 31

~ June July

Figure 9 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1983bull

~

middot10

09 U N

I 08 0 c 07E I ()

- 06 E-0 0 05 shy~ () 04 ca - ()

03E I 0 02

01

27 1 5 10 15 2Q 25 1 5 10 15 20 25 31

June July

Figure 10 Unalakleet River Test Fishing Daily Coho CPUE in 5 78 mesh 1983

1

6

5

I 0

NI II I 0 t

E 4

0 0 c 3() cu 0

2

1

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sept U

Figure 11 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1983

200

175

150

I 0 c 125E I ()

E

r-shy-0 I I N 0 100 c ()-as ()

75E I 0

50

25

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sel ber

20

Figure 12 Unalakleet River Test Fishing Daily Pink CPUE in 4 mesh 1983

18

I

0) N

II

16

I ishy

14 J 0 t 12shyE 0 10 0 shys 8 () as

0 6 1 I V 4

2

~ I

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

--

Figure 13 Unalakleet River Test Fishing Cumulat ive Pink CPUE in 4 mesh 1983

10

9 01 N 8

J 0 J 7 E J 0 6 E- 50 ~

amp 4() ca

0 3 E J

0 2

1

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

Figure 14 Unalakleet River Test Fishing Daily CPUE in 5 14 amp 5 78 mesh 1983

14

13shy

12

11

10

9 J 0 8

I z shy-E 7 0 0 shys ~u aI 0

4 I

31

2

1

II

0 C1)I 11

I I I II

bull y AA(net changed to 5 78

AA A 11 I

~ I~ V ~

- I

VI

1 5 10 15 20- 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

cJune July August

Figure 15 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 14 amp 5 78 mesh 1983

It

5

--l C)

net changed to 5 78

~ 4 o

c E (J ~

3E o o c 2 u ~ -(J

E ~ (J 1

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 16 Unalakleet River Test Fishing Catch Proportions 1983

60

55

---- King50

__ Coho 45

P--Q Pink

40 __ Chum

I LU 35J D I 0

30 ICQ 0 25 I

N Cl0 20

c G)

15u G)

D

10

5 A 1 I

I 4 I

I I

3 lt

~

2

I I1 - I bull I

I ~ ~ ~ t -J ~~ - _

r

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 17 Unalakleet Area Temperatures 1983

18

16

14

12

til 10I

u-G) 80 CI) G) G) 6 C) G)

Q 4

2

C) C)

__ Air

0--0 River 2

0

-2

-4

---------~ ~

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August 5e

4

Figure 18 Unalakleet River Turbidity and Depth 1983

__ Secchi Reading

-t ()

II) G)-G)

3

iE 2

1

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August

~ 1 _ ~ r--- I shy I __ I 01 --shy

Figure 19 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1981-83

27 31 5

May

_1981

____ 1982

o 0 1983 11) C)

Changed to 5 78 mesh

I

t

~-~o-~ Q-O--Oolt)-(IQ-----l

--1

_10 15 20 25 30 5 10 15 20 25 31

June July

I I I

~

0 ~

r E ~

CJ shyE 0 0 I

shyr u-cu CJ

E ~

CJ

4

35

30

25

20

15

10

05

Figure 20 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 78 mesh 1981-83

5

4 lI 0

z

E lI 0 3 E-0 0 2 r CJ-cu 0

E lI 1 0

__1981 ~~

~ ___1982

a 01983 5 148 mesh from 65-810

_----shy-- 0 - -- C1) A - _ - ~

~ I

I

II I I I I I

I I

1

~ -

-

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 21 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 mesh- 1981-83

8

70

60

50

40 0

r 30E

0 20E-0 0 10 s= u 8 tV 0 6E 0 4

2

__1981 ____ 1982

_1983

shy--- -- shy--- shy J - -

I

I

C1- J

I

-----l---l ~--~r---------------r--

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 22 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1981-83

_1981

~ __ 1982

~1983

25

00I _ __ _ _ C)~ I __ _ I

I V o 20 rt I I

E I AshyI o E 15-o o z u 10 tU o E I o 5

I

1 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

July August 5

----------------------------------------------------------------

Table 1 Unalakleet River Subsistence King Salmon Index 1983

Number of Number of Date Fishermen Chinook Average

08 02 18 05 05 00 02 58 92 62 72 72 42 28 52 60 62 20 47 50 35 25 15

June 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Totals

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 4 4 4

4

3 1 7 2 2 o 1

23 37 25 29 29 17 11 21 24 25

6 14 15 14 H~

6

322

~

39

---------------------- ---------- --------------------------------------

----------------------------------------------------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983

Daily Proportion Cumu1 Prop Date South North Total of Total Cumulative of Total

64 7 23 30 1313131 313 013131 65 44 187 231 00137 261 01308 66 12 162 174 01305 435 01313 67 8 283 291 1313139 726 01322 68 0000 726 13022 69 3 221 224 013137 950 13029 610 26 245 271 131308 1221 13037 611 56 254 310 131310 1531 131347 612 44 736 780 013 24 2311 13071 613 64 1188 1252 01339 3563 01113 614 59 1752 1811 0056 5374 0166 615 97 844 941 01329 6315 0195 616 165 729 894 0028 7209 0223 617 151 i 604 1755 0054 8964 middot 0277 618 i ll 1524 1635 0051 10599 13328 619 175 2000 2175 0067 12774 13395 620 171 21320 2191 0068 14965 0463 621 220 1613 1833 0057 16798 0520 622 199 2065 2264 0070 19062 0590 623 362 21334 2396 0074 21458 13664 624 876 3403 4279 13133 25737 0797 625 1244 2023 3267- 0101 29004 0898 626 738 1601 2339 0073 31343 0971 627 573 3265 3838 0119 35181 1090 628 547 1868 2415 0075 37596 1165 629 528 4028 4556 0141 42152 1306 630 430 430 0013 42582 1319 71 240 240 01307 42822 1326 72 201 975 1176 0036 43998 1362 73 309 8842 9151 0284 53149 1646 74 475 6385 6860 0213 60009 1859 75 565 3342 3907 0121 63916 1980 76 1377 2094 3471 0108 67387 2088 77 1416 3173 4589 0142 71976 2230 78 1472 1420 2892 0090 74868 2320 79 2071 1452 3523 01113 78391 2430 710 3318 2434 5752 0178 84143 2608 711 2673 2866 5539 13172 89682 2780 712 1665 1747 3412 13106 93094 2886 713 21317 1951 3968 13123 97062 3009 714 2991 2664 5655 0175 102717 3184 715 2646 2548 5194 13161 107911 3345 716 2488 2886 5374 0167 113285 3512 717 1585 4063 5648 0175 118933 3687 718 3559 9326 12885 0400 131818 4087 719 2948 2398 5346 13166 137164 4253 720 1640 3330 4970 0154 142134 4407 721 2416 6420 8836 0274 150970 4681 722 3298 3298 0102 154268 4783 723 5007 5007 0155 159275 4938

40

--------------------------------------------------------------------

--------------------------------------------------------------------

-----------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983 (Continued)

Daily Proportion Cum Prop Date South North Total of Total Cumu1at i ve of Total

724 4005 7804 11809 0366 171084 5304 725 2453 3392 5845 0181 176929 5485 726 2166 12094 14260 0442 191189 5927 727 1914 4472 6386 0198 197575 6125 728 1603 3463 5066 0157 202641 6282 729 1251 1914 3165 0098 205806 6380 730 1710 2495 4205 en30 210011 6510 731 2542 1887 4429 0137 214440 6647 81 4479 2271 6750 0209 221190 6856 82 1103 1806 2909 0091 224099 6947 83 1719 942 2661 0083 226760 bull 7030 84 1519 2557 4076 0126 230836 7156 85 1259 1113 2372 0074 233208 7230 86 940 2189 3129 0097 236337 7327 87 1467 4354 5821 0180 242158 7507 88 2318 1584 3902 0121 246060 7628 89 2098 1505 3603 0112 249663 7740 810 2629 1517 4146 bull 0129 253809 7869 811 3753 1091 4844 0150 258653 8019 812 1489 523 2012 0062 260665 8081 813 744 353 1097 0034 261762 8386 814 981 981 bull 0030 262743 8145 815 2324 2324 0072 265067 8217 816 2638 2638 0082 267705 8299 817 2073 731 2804 0087 270509 8115 818 2244 675 2919 0091 273428 8477 819 3240 696 3936 0122 277364 8599 820 2363 503 2866 0089 280230 8688 821 6789 1111 7900 0245 288130 8933 822 6489 563 7052 0219 295182 9152 823 5077 298 5375 0167 300557 9319 824 2616 298 2914 0090 303471 9409 825 3933 412 4345 0135 307816 9544 826 1393 554 1947 0060 309763 9604 827 1203 463 1666 0052 311429 9656 828 1197 542 1739 0054 313168 9710 829 1244 221 1465 0045 314633 9755 830 1011 199 1210 0038 315843 9793 831 718 214 932 0029 316775 9822 91 1324 318 1642 0052 318417 9874 92 1362 307 1669 0052 320086 9926 93 1146 314 1460 0045 321546 9971 94 652 296 948 bull 0029 322494 10000

148465 174029 322494 10000

41

----------------------------------------------------------------------

-------------------------------------------------------------------- --

------

TABLE 3A Unalakleet River Species Apportionment by Test Period King Salmon 1983

3-Day App Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 76 0272 76 0272

69-612N 28 0100 104 0372

612N-615 461 1652 565 2024

616-619N 419 1502 984 3526

619N-622 170 0609 1154 4135

623-626N 722 2588 1876 6723

626N-629 264 0946 2140 7669

630-73N 103 0639 2243 8038

73N-76 188 0674 2431 8712

77-710N 0 0000 2431 8712

710N-713 0 0000 2431 8712

714-717N 267 0957 2698 9969

717N-720 0 0000 2698 9669

721-724N 92 0331 2790 1 0000

724N-727 0 0000 2790 10000

728-731N 0 0000 2790 1 0000

731N-83 0 0000 2790 1 0000

2790 10000

42

Dates

714-717N

717N-720

721-724N

724N-727

728-731N

731N-83

84-87N

87N-810

811-814N

814N-817

818-821N

821N-824

825-828N

828N-831

91-94

TABLE 3B Unalakleet River Species Apportionment by Test Period Coho Salmon

3-Day Count

583

338

436

550

2650

1174

793

1435

5074

1280

435

2265

171H3

1983

Proportion of Season Total

0000

0000

0000

0343

0199

0256

0323

1558

0690

0466

0843

2983

0752

0256

1331

Cumulative Count

583

921

1357

1907

4557

5731

6524

7959

13033

14313

14748

17013

Cumulative Proportion

0000

0000

0000

0343

0542

0798

1121

2679

3369

3835

4678

7661

8413

8669

10000

43

------------------------------------------------------------------

------------------------------------------------------------------

----- ------

TABLE 3C Unalakleet River Species Apportionment by Test Period Pink Salmon 1983

3-Day P roport ion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 0 0000

6l2N-615 0 0000

616-6l9N 97 0012

6l9N-622 332 0036

623-626N 1245 0136

626N-629 6624 0721

630-73N 3699 0403

73N-76 10762 1171

77-7l0N 7704 0838

710N-7l3 8529 0928

714-717N 9771 1063

717N-720 13845 1507

721-724N 11361 1236

724N-727 6544 0712

728-731N 3545 0386

731N-83 1628 0177

84-87N 1224 0133

87N-810 1777 0193

811-814N 802 0087

814N-817 561 0061

818-821N 533 0058

821N-824 8313 13091

825-828N 468 0051

828N-831 0 0000

91-94 0 0000

91881 10000

0 0000

0 0000

0 0000

97 0012

429 0048

1674 0184

8298 0905

11997 1308

22759 2479

30463 3317

38992 4245

48763 5308

62608 6815

73969 8051

80513 8763

84058 9149

85686 9326

86910 9459

88687 9652

89489 9739

90050 9800

90583 9858

91413 9949

91881 10000

91881 10000

91881 1 0000 44

------------------------------------------------------------------

------------ ------------------------------------------------------

----- ------

TABLE 3D Unalakleet River Species Apportionment by Test Period Chum Salmon 1983

3-Day Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 100 0017

612N-615 268 0046

616-619N 838 0144

619N-622 1180 0202

623-626N 2744 0471

626N-629 1569 0270

630-73N 796 0137

73N-76 2972 0510

77-710N 2068 0355

710N-713 2622 0450

714-717N 4133 0710

717N-720 5596 0960

721-724N 4978 0854

724N-727 8974 1540

728-731N 2241 0385

731N-83 2079 ~0357

84-87N 3009 0516

87N-810 2432 0417

811-814N 937 0161

814N-817 454 0078

818-821N 2584 0443

821N-824 2739 0470

825-828N 1783 0306

828N-831 765 0131

91-94 412 0070

58273 10000 45

0 0000

100 0017

368 0063

1206 0207

2386 0409

5130 0880

6699 1150

7495 1287 f

10467 1797

12535 2152

15157 2602

19290 3312

24886 4272

29864 5216

38838 6666

41079 7051

43158 7408

46167 7924

48559 8341

49536 8502

49990 8580

52574 9023

55313 9493

57096 9799

57861 9930

58273 1 0000

-------------------------------------------------------------

------------------------- ------------------------------------

TABLE 4 Unalakleet River Test Net Proportions by Sample Perio-d 1983 ( Selective CPUE)

Dates Chinook Coho Pink Chum Misc

64-68 105 00 00 895

69-612N 24 00 83 893

612N-615 1C~ 5 00 61 834

616-619N 78 18 156 748

619N-622 23 45 160 772

623-626N 65 112 247 576

626N-629 22 553 131 294

630-73N 16 576 124 284

73N-76 10 572 158 260

77-710N 00 555 149 296

710N-713 00 540 166 294

714-717N 14 00 513 217 256

717N-720 00 00 532 215 253

721-724N 04 00 493 216 287

724N-727 00 18 202 277 503

728-731N 00 23 242 153 582

731N-83 00 30 112 143 715

84-87N 44 98 241 617

87N-810 182 122 167 529

811-814N 139 95 111 655

814N-B17 96 68 55 7B1

B18-B21N 105 39 1B9 667

821N-824 263 43 142 552

825-B28N 145 53 202 600

828N-831 97 00 171 732

91-94 396 00 72 532

46

--------

--------

TABLE 4 Una1ak1et River Test Net Proportions 1983 ( Selective CPUE) (Continued)

Comparative Apportionment

Species Apportionment

Chinook 2790 Coho 17013 Pink 91881 Churn 58273

------shySubtotal 169957

Misc Species 152537 ------shy

Total 322494

Substrate Comparison -------------------shy

Bank Counts -----shy

South 148465 North 174029

------shy

Total 322494

Percent of Total Counts

09 53

285 181

5408

472

1000

Percent

460 540

1000

47

-------------------------------------------------------------------

TABLE 5A Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

May 27 28

21 5 482

13 13

1313

1313 21 5 697

13 13

1313

1313 30 240 0 013 937 0 00 31 246 2 41 1183 2 08

June 1 237 0 00 1420 2 07 2 3

256 585

13 13

013 bull 13 13

1676 2 261

2 2

6bull 13 4

5 6 8

160 120 middot 125

13 1

13 42 130

2 421 2541 2666

~ 2 3 3

bull 13 4 136 136

9 122 0 130 2788 3 05 11 117 00 2905 3 05 12 126 13 00 3031 3 05 13 117 1 43 3148 4 06 15 118 0 013 3266 4 136 16 116 1 43 3382 5 138 18 240 13 130 3622 5 07 19 121 0 00 3743 5 07 20 116 0 00 3859 5 136 22 118 1 42 3977 6 138 23 119 1 42 4196 7 08 25 240 0 013 4336 7 138 26 119 13 1313 4455 7 138 27 119 13 1313 4574 7 138 29 1213 13 130 4694 7 137 313 1213 13 00 4814 7 07

July 2 238 0 1313 51352 7 07 3 118 13 013 51713 7 07 4 118 1 42 5288 8 138 6 122 0 00 5410 8 07 7 116 13 00 5526 8 07

10 126 0 1313 5652 8 07 11 119 0 013 5771 8 07 13 116 13 130 5887 8 07 14 119 2 84 6006 10 07 17 122 0 00 6128 10 07 18 112 0 1313 6240 10 136 20 119 13 00 6359 10 06 21 112 0 013 6471 10 06

6471 10

48

------------------------------------------------------------------

------------------------------------------------------------------

TABLE 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983

Cum Cum Date Hours Catch CPUE Hours Catch CPUE

July 24 26

115 120 0 00

115 235

0 0

00

00 27 117 4 00 352 0 00 29 117 0 137 469 4 34 31 116 3 103 585 7 48

August 2 122 0 00 706 7 40 3 122 2 66 828 9 43 5 118 1 34 946 10 42 7 128 14 437 1074 24 89 9 257 14 218 1331 38 114

10 125 21 672 1456 59 162 12 13 middot- 0 00 1469 x 59 161 14 10 7 12 449 1576 71 180 16 122 2 66 1698 73 172 17 123 6 196 1821 79 174 19 118 1 34 1939 80 165 21 112 6 214 2051 86 168 23 120 3 100 217 1 89 164 24 115 2 70 2286 91 159 26 115 5 174 2401 96 160 28 119 0 00 2520 96 152 30 119 4 1 34 2639 100 152 31 117 1 34 2756 101 147

Sept 2 123 5 33 2879 106 147 4 479 15 125 3358 121 144 6 238 11 185 3596 132 147 7 237 5 84 3833 137 143 8 238 6 1 01 4071 143 141 9 242 10 1 65 4313 153 142

10 242 3 50 4555 156 137 11 242 2 33 4797 158 132 12 241 8 133 5038 166 132 14 227 14 247 5265 180 137 15 242 9 149 5507 189 137 16 210 3 57 5717 192 134 17 239 2 33 5956 194 130 18 230 2 35 6186 196 127 20 489 4 33 6675 200 120 21 24 3 50 6915 203 117 22 242 0 00 7157 203 113 23 234 1 17 7391 204 110

----shy

7391 204

Mesh size = 5 14 from 724 to 810

49

------------------------------------------------------------------

TABLE 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE ------~-----------------------------------------------------------June 16 122 1 33 122 1 33

17 118 0 bull 0 0 240 1 17 20 120 2 67 360 3 33 21 118 0 00 478 3 25 23 119 2 67 597 5 34 24 119 3 102 716 8 45 27 116 19 655 832 27 130 28 120 22 733 952 49 206 30 120 40 1333 1072 89 332

July 1 115 36 1252 1187 125 421 4 122 30 983 1309 155 474 5 114 47 1649 1423 202 568 7 118 30 1016 1541 232 602 8 120 shy 24 800 1661 -$ 256 616

11 122 42 1377 1783 298 669 12 120 29 967 1903 327 687 14 116 37 1276 2019 364 721 15 118 40 1356 2137 404 756 18 121 60 1976 2258 464 822 19 119 30 740 2377 494 831 21 125 61 1952 2502 555 887 22 118 25 847 2627 580 883 25 122 16 525 2749 596 867 26 116 15 517 2865 611 853 28 122 28 918 2987 639 856 29 117 11 376 3104 650 838

August 1 120 7 233 3224 657 815 2 119 9 303 3345 666 796 4 120 3 100 3465 669 772 5 118 5 170 3583 674 752 8 114 7 245 3697 681 734

11 123 7 337 3 82 0 688 720 15 118 2 68 3938 690 701 16 113 5 177 4051 695 686 18 98 3 122 4149 698 673 19 119 1 34 4268 699 655 22 112 0 00 4380 699 638 23 115 0 00 4495 699 622 25 120 2 66 4615 701 606 26 112 1 36 4727 702 594 29 116 0 00 4843 702 580 30 11 5 0 00 4958 702 566

Sept 1 115 0 00 5079 702 553 2 112 0 00 5191 702 541

----shy5079 702

50

-----------------------------------------------------------------

------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

June 5 73 0 00 73 0 00 7 126 0 00 199 0 00 8 127 0 00 326 0 bull 0 0

10 11 4 3 105 440 3 27 12 113 2 71 553 5 36 14 119 1 34 672 6 36 15 116 4 138 788 10 51 17 116 3 103 904 13 56 19 118 6 203 1022 19 74 21 118 0 00 1140 19 67 22 117 10 342 1257 29 92 24 116 3 103 1373 32 93 26 119 11 370 1492 43 115 28 11 8 6 203 1610 $ 49 122 29 115 13 452 1725 62 144

July 1 119 8 269 1844 70 152 3 119 17 571 1963 87 177 5 119 13 437 2082 100 192 6 12 0 17 567 2202 117 213 8 121 7 231 2323 124 214

10 11 4 18 632 2437 142 233 12 115 12 417 2552 154 241 13 116 37 1276 2668 191 286 15 117 16 547 2785 207 297 17 11 8 31 1051 290 3 238 328 19 118 18 610 3021 256 339 20 115 29 1009 3136 285 364 22 122 17 557 3258 302 371 24 115 24 835 3373 326 387 26 120 19 633 3493 345 395 27 117 11 376 3610 356 394 29 117 14 479 3727 370 397 31 116 18 621 3843 388 404

August 2 121 9 298 3964 397 401 3 122 17 557 4086 414 405 5 11 8 8 271 4204 422 402 7 128 19 594 4332 441 407 9 257 10 156 4589 451 393

10 125 14 448 4714 464 394 12 13 1 308 4727 465 393 14 107 5 187 4834 470 389 16 122 4 131 4956 474 383 17 123 15 488 5079 489 385 19 118 8 271 5197 497 383 21 112 3 107 5309 500 378 23 120 6 200 5429 506 373 24 115 7 243 5544 513 370

51

-----------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 (Continued)

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

August 26 115 5 174 5657 518 366 28 119 1 34 577 6 519 359 30 119 4 134 5895 523 355 31 117 0 00 6012 523 3 48

Sept 2 123 3 98 613 5 526 343 4 479 2 17 6614 528 319 6 238 1 17 6852 529 309 7 237 0 00 7089 529 298 8 9

238 242

1 2

17

33 7327 7569

clt

530 532

289 281

10 242 3 50 7811 535 274 11 242 0 00 8053 535 266 12 241 2 33 8294 537 259 14 227 3 53 8521 540 253 15 242 0 00 8763 540 246 16 210 1 19 8973 541 241 17 239 2 33 9212 543 236 18 230 0 00 9442 543 230 20 489 0 00 9931 543 219 21 240 2 33 10171 545 214 22 242 0 0 10413 545 209 23 234 0 00 10647 545 205

----shy

10647 545

52

------------------------------------------------------------------------

------

TABLE 6A Unalakleet River Sonar Site Drift Sets5 1 4n Me sh 19 83 bull

Date Time Result

July 19 1405-1413 1 burbot July 23 1040-1055 1 pink caracass July 27 1520-1530 1 coho August 3 1444-1501 4 coho August 22 1930-1937 0 August 23 937-943 1 coho 1 pink carcass August 26 1117-1127 1 coho 3 churn August 31 1018-1034 3 churn

TABLE 6B Unalakleet River Sonar Site Beach Seines 1983

Date Time Distance Result

July 20 1445 120 meters 4 pink 1 churn 13 Dolly Varden 1 whitefish

July 25 1500 120 meters 6 pink 1 churn 1 Dolly Varden 4 whitefish 1 grayling

July 28 1700 120 meters 4 coho 2 pink 2 churn 1 Dolly Varden

August 1 2010 300 meters 4 pink 3 churn 8 Dolly Varden

August 4 1015 130 meters 5 coho 3 pink 3 churn 65 Dolly Varden 3 whitefish 3 grayling

August 24 1110 130 meters 18 coho 2 Dolly Varden 2 grayling

August 29 1715 120 meters 11 coho 1 pink 69 churn 1 Dolly Varden 2 grayling

Seine done at mile 12 Unalakleet River

53

--------------------------------------------------------------------------------------------------

--------------------------------------------------------------------------------------------------

TABLE 7 AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER CATCH SAMPLE SPORT CATCH AND SPAWNING SURVEYS 1983

II

COMBINED 3-2 4-2 4-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 31 646 6702 5 104 5010 8 167 5688 1 21 5900

Female 17 354 8540 o o 1 21 5450 o o

Total 48 1000 7353 5 104 5010 9 188 5661 1 21 5900

~ 11)

5-2 6-2 7-2 7-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 11 229 7382 6 125 8350 0 0 0 0

Female 2 42 7925 12 250 8742 1 21 10650 1 21 8350

Total 13 271 7465 18 375 8611 1 21 10650 1 21 8350

TABLE 8A AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER TEST NET SAMPLE 1983

-----~-------------------------------------------------------------------------------------------------------

gt

COMBINED 4-2 5-2 5-3 6-2 7-2 NO LENGIH NO LENGIH NO LENGIH NO LENGTH NO LENGTH NO LENGTr

8 14 n

Male 3 333 8107 0 1 111 5800 o 0 2 222 9260 0 0 Female 6 667 8295 0 0 1 111 7600 o o 4 444 8310 1 111 8930 Total 9 10 e 0 8232 0 o 2 222 6700 o o 6 667 8627 1 111 8930

If) If)

5 14 Male 19 1000 6298 12 632 5392 4 211 6990 0 o 3 158 8997 0 0 Female o 0 o o o o o o 0 0 0 0 Total 19 1000 6298 12 632 5392 4 211 6990 o o 3 158 8997 0 0

4 n or Smaller Male 6 667 5930 1 111 4660 2 222 6325 3 333 6090 0 o 0 o Female 3 333 8970 o o o o o o 3 333 8970 0 o Total 9 1000 6943 1 111 466 2 222 6325 3 33 3 6090 3 33 3 8970 0 0

TOTAL Hale 28 757 6413 13 351 5336 7 189 6630 3 8 1 6090 5 13 5 9102 o 0 Female 9 243 852 o o 1 27 7600 o o 7 189 8593 1 2 7 8930 Total 37 1000 6925 13 351 5336 8 216 6751 3 8 1 6090 12 324 88 e 5 1 2 7 8930

---------------------------------------------------------------------------------------------------------

---------------------------------------------------------------------------------------------------------

TABLE 8B AGE SEX AND SIZE COMPOSITION OF NORTON SOUND COHO SALMON UNALAKLEET RIVER TEST NET SAMPLE 5 14 AND 5 78 GEAR 1983

COMBINED 3-2 4-3 4-4 5-4 NO LENGIH NO LENGIH NO LENGTH NO LENGIH NO LENGTH

Male 9 900 5489 0 0 9 900 5489 0 0 Female 1 10 bull 0 552 QJ QJ 0 1 10QJ 5520 0 0 Total 10 1000 5492 0 0 10 1000 5492 0 0 725-731

bull LI)Male 15 938 5645 15 938 5645 Female 1 62 575 QJ 1 62 575 QJ Total 16 lQJ0QJ 5651 16 100QJ 5651 81-87

Male 24 545 5668 23 523 5768 1 23 3350 Female 20 455 5631 20 455 5631 0 0 Total 441QJ0QJ 5651 43 977 57 QJ 4 1 23 335 QJ 88-814

Male 7 500 5797 7 500 5797 QJ 0 Female 7 500 5596 6 429 5587 1 71 5650 Total 14 1000 5696 13 929 1 71 5650570 815-821

Male 5 455 5492 5 455 5492 Female 6 545 5552 6 545 5552 Total 11 lQJ00 5525 11 100QJ 5525 822-828

Figure 4A Specie apportionment king salmon Un-alakleet sonar 1983

~

25

-l20

c 1 5 III () III

11

10

5

I

J

27 31 5 10 15 20 25 30 5 10 15 20 25 31

June Ju Iy

Figure 4B Specie middotapp~~tionment coho salmon Unalakleet sonar 1983

30

25

co ~

20

1 t~

C $

u 1 5 CD a

10

5

5 10 15 20 25 31 5 10 15 20 25 31 5

Ju August Sept e

Figure 4C Specie apportionment pink salmon Unalakleet sonar 1983

1 6

1 5

14

1 3

12

1 1

c II U CII

Ashy

10

9

a

7

01 ~

6

5

4

3

2

1

1 5 10 1 5

June

2 O 25 30 5 10 15 20

Ju Iy

25 31 5 10 15 20

August

25 31 5 10

Septem

Figure 40 Species apportionment chum salmon Unalakleet sonar 1983

16

1 5

1 4

13

1 2

1 1

10

9 c 8GI U

GI middot7 A

6

5

4

3

2

1

~

o N

~

1 5 10 15 20 25 30 5 10 15 20 25 3 1 5 10 15 20 25 31 5 10

June Ju Iy August Sept e

Figure 5 Specie apportionment Unalakleet sonar 1983

50

4

40

35

c J 30 0 U

~ 0 25 0 c Q)

u ~

Q) 20a

15

10

5

o L-_lt---__

King Coho Pink Chum Misc

21

----

Figure 6 Sector distribution of counts Unalakleet sonar1983

35

30

25

c 20 G)

() G) 15

0

10

5

35

30

25 c G)

() 20

G)

0 15

10

5

( s ()u t h ban k )

July 3-5

~-2 4 6 8 1 0 1 2 1 4 1 6shy

Sector

August 21-23

2 4 6 8 10 12 14 16

Sector

22

Figure 7 Hourly distribution of counts Unalakleet sonar 1983

(south bank)

14

12

10

c 8 GI U ~

6

July 3-5

~GI

I =~ Q

4

2 0

2 4 6 8 10 12 14 1 6 18 20 22 24

TIme

9

8

7

6

5 c GI U ~ 4 GI

Q

3

2

August 21-23

1

0

2 4 6 8 10 12 14

TIme

16

23

18 20 22 24

Figure 8 Unalakleet River Test Fishing Daily King CPUE in 8 14 mesh 1983

10

9 N

8 shy

7 I 0 c 6E

n

l J I I

0 0 5 c (J 4 co 0

3

2

1

I I

27 1 5 10 15 20 25 1 5 10 15 20 25 31

~ June July

Figure 9 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1983bull

~

middot10

09 U N

I 08 0 c 07E I ()

- 06 E-0 0 05 shy~ () 04 ca - ()

03E I 0 02

01

27 1 5 10 15 2Q 25 1 5 10 15 20 25 31

June July

Figure 10 Unalakleet River Test Fishing Daily Coho CPUE in 5 78 mesh 1983

1

6

5

I 0

NI II I 0 t

E 4

0 0 c 3() cu 0

2

1

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sept U

Figure 11 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1983

200

175

150

I 0 c 125E I ()

E

r-shy-0 I I N 0 100 c ()-as ()

75E I 0

50

25

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sel ber

20

Figure 12 Unalakleet River Test Fishing Daily Pink CPUE in 4 mesh 1983

18

I

0) N

II

16

I ishy

14 J 0 t 12shyE 0 10 0 shys 8 () as

0 6 1 I V 4

2

~ I

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

--

Figure 13 Unalakleet River Test Fishing Cumulat ive Pink CPUE in 4 mesh 1983

10

9 01 N 8

J 0 J 7 E J 0 6 E- 50 ~

amp 4() ca

0 3 E J

0 2

1

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

Figure 14 Unalakleet River Test Fishing Daily CPUE in 5 14 amp 5 78 mesh 1983

14

13shy

12

11

10

9 J 0 8

I z shy-E 7 0 0 shys ~u aI 0

4 I

31

2

1

II

0 C1)I 11

I I I II

bull y AA(net changed to 5 78

AA A 11 I

~ I~ V ~

- I

VI

1 5 10 15 20- 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

cJune July August

Figure 15 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 14 amp 5 78 mesh 1983

It

5

--l C)

net changed to 5 78

~ 4 o

c E (J ~

3E o o c 2 u ~ -(J

E ~ (J 1

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 16 Unalakleet River Test Fishing Catch Proportions 1983

60

55

---- King50

__ Coho 45

P--Q Pink

40 __ Chum

I LU 35J D I 0

30 ICQ 0 25 I

N Cl0 20

c G)

15u G)

D

10

5 A 1 I

I 4 I

I I

3 lt

~

2

I I1 - I bull I

I ~ ~ ~ t -J ~~ - _

r

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 17 Unalakleet Area Temperatures 1983

18

16

14

12

til 10I

u-G) 80 CI) G) G) 6 C) G)

Q 4

2

C) C)

__ Air

0--0 River 2

0

-2

-4

---------~ ~

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August 5e

4

Figure 18 Unalakleet River Turbidity and Depth 1983

__ Secchi Reading

-t ()

II) G)-G)

3

iE 2

1

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August

~ 1 _ ~ r--- I shy I __ I 01 --shy

Figure 19 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1981-83

27 31 5

May

_1981

____ 1982

o 0 1983 11) C)

Changed to 5 78 mesh

I

t

~-~o-~ Q-O--Oolt)-(IQ-----l

--1

_10 15 20 25 30 5 10 15 20 25 31

June July

I I I

~

0 ~

r E ~

CJ shyE 0 0 I

shyr u-cu CJ

E ~

CJ

4

35

30

25

20

15

10

05

Figure 20 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 78 mesh 1981-83

5

4 lI 0

z

E lI 0 3 E-0 0 2 r CJ-cu 0

E lI 1 0

__1981 ~~

~ ___1982

a 01983 5 148 mesh from 65-810

_----shy-- 0 - -- C1) A - _ - ~

~ I

I

II I I I I I

I I

1

~ -

-

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 21 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 mesh- 1981-83

8

70

60

50

40 0

r 30E

0 20E-0 0 10 s= u 8 tV 0 6E 0 4

2

__1981 ____ 1982

_1983

shy--- -- shy--- shy J - -

I

I

C1- J

I

-----l---l ~--~r---------------r--

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 22 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1981-83

_1981

~ __ 1982

~1983

25

00I _ __ _ _ C)~ I __ _ I

I V o 20 rt I I

E I AshyI o E 15-o o z u 10 tU o E I o 5

I

1 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

July August 5

----------------------------------------------------------------

Table 1 Unalakleet River Subsistence King Salmon Index 1983

Number of Number of Date Fishermen Chinook Average

08 02 18 05 05 00 02 58 92 62 72 72 42 28 52 60 62 20 47 50 35 25 15

June 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Totals

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 4 4 4

4

3 1 7 2 2 o 1

23 37 25 29 29 17 11 21 24 25

6 14 15 14 H~

6

322

~

39

---------------------- ---------- --------------------------------------

----------------------------------------------------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983

Daily Proportion Cumu1 Prop Date South North Total of Total Cumulative of Total

64 7 23 30 1313131 313 013131 65 44 187 231 00137 261 01308 66 12 162 174 01305 435 01313 67 8 283 291 1313139 726 01322 68 0000 726 13022 69 3 221 224 013137 950 13029 610 26 245 271 131308 1221 13037 611 56 254 310 131310 1531 131347 612 44 736 780 013 24 2311 13071 613 64 1188 1252 01339 3563 01113 614 59 1752 1811 0056 5374 0166 615 97 844 941 01329 6315 0195 616 165 729 894 0028 7209 0223 617 151 i 604 1755 0054 8964 middot 0277 618 i ll 1524 1635 0051 10599 13328 619 175 2000 2175 0067 12774 13395 620 171 21320 2191 0068 14965 0463 621 220 1613 1833 0057 16798 0520 622 199 2065 2264 0070 19062 0590 623 362 21334 2396 0074 21458 13664 624 876 3403 4279 13133 25737 0797 625 1244 2023 3267- 0101 29004 0898 626 738 1601 2339 0073 31343 0971 627 573 3265 3838 0119 35181 1090 628 547 1868 2415 0075 37596 1165 629 528 4028 4556 0141 42152 1306 630 430 430 0013 42582 1319 71 240 240 01307 42822 1326 72 201 975 1176 0036 43998 1362 73 309 8842 9151 0284 53149 1646 74 475 6385 6860 0213 60009 1859 75 565 3342 3907 0121 63916 1980 76 1377 2094 3471 0108 67387 2088 77 1416 3173 4589 0142 71976 2230 78 1472 1420 2892 0090 74868 2320 79 2071 1452 3523 01113 78391 2430 710 3318 2434 5752 0178 84143 2608 711 2673 2866 5539 13172 89682 2780 712 1665 1747 3412 13106 93094 2886 713 21317 1951 3968 13123 97062 3009 714 2991 2664 5655 0175 102717 3184 715 2646 2548 5194 13161 107911 3345 716 2488 2886 5374 0167 113285 3512 717 1585 4063 5648 0175 118933 3687 718 3559 9326 12885 0400 131818 4087 719 2948 2398 5346 13166 137164 4253 720 1640 3330 4970 0154 142134 4407 721 2416 6420 8836 0274 150970 4681 722 3298 3298 0102 154268 4783 723 5007 5007 0155 159275 4938

40

--------------------------------------------------------------------

--------------------------------------------------------------------

-----------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983 (Continued)

Daily Proportion Cum Prop Date South North Total of Total Cumu1at i ve of Total

724 4005 7804 11809 0366 171084 5304 725 2453 3392 5845 0181 176929 5485 726 2166 12094 14260 0442 191189 5927 727 1914 4472 6386 0198 197575 6125 728 1603 3463 5066 0157 202641 6282 729 1251 1914 3165 0098 205806 6380 730 1710 2495 4205 en30 210011 6510 731 2542 1887 4429 0137 214440 6647 81 4479 2271 6750 0209 221190 6856 82 1103 1806 2909 0091 224099 6947 83 1719 942 2661 0083 226760 bull 7030 84 1519 2557 4076 0126 230836 7156 85 1259 1113 2372 0074 233208 7230 86 940 2189 3129 0097 236337 7327 87 1467 4354 5821 0180 242158 7507 88 2318 1584 3902 0121 246060 7628 89 2098 1505 3603 0112 249663 7740 810 2629 1517 4146 bull 0129 253809 7869 811 3753 1091 4844 0150 258653 8019 812 1489 523 2012 0062 260665 8081 813 744 353 1097 0034 261762 8386 814 981 981 bull 0030 262743 8145 815 2324 2324 0072 265067 8217 816 2638 2638 0082 267705 8299 817 2073 731 2804 0087 270509 8115 818 2244 675 2919 0091 273428 8477 819 3240 696 3936 0122 277364 8599 820 2363 503 2866 0089 280230 8688 821 6789 1111 7900 0245 288130 8933 822 6489 563 7052 0219 295182 9152 823 5077 298 5375 0167 300557 9319 824 2616 298 2914 0090 303471 9409 825 3933 412 4345 0135 307816 9544 826 1393 554 1947 0060 309763 9604 827 1203 463 1666 0052 311429 9656 828 1197 542 1739 0054 313168 9710 829 1244 221 1465 0045 314633 9755 830 1011 199 1210 0038 315843 9793 831 718 214 932 0029 316775 9822 91 1324 318 1642 0052 318417 9874 92 1362 307 1669 0052 320086 9926 93 1146 314 1460 0045 321546 9971 94 652 296 948 bull 0029 322494 10000

148465 174029 322494 10000

41

----------------------------------------------------------------------

-------------------------------------------------------------------- --

------

TABLE 3A Unalakleet River Species Apportionment by Test Period King Salmon 1983

3-Day App Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 76 0272 76 0272

69-612N 28 0100 104 0372

612N-615 461 1652 565 2024

616-619N 419 1502 984 3526

619N-622 170 0609 1154 4135

623-626N 722 2588 1876 6723

626N-629 264 0946 2140 7669

630-73N 103 0639 2243 8038

73N-76 188 0674 2431 8712

77-710N 0 0000 2431 8712

710N-713 0 0000 2431 8712

714-717N 267 0957 2698 9969

717N-720 0 0000 2698 9669

721-724N 92 0331 2790 1 0000

724N-727 0 0000 2790 10000

728-731N 0 0000 2790 1 0000

731N-83 0 0000 2790 1 0000

2790 10000

42

Dates

714-717N

717N-720

721-724N

724N-727

728-731N

731N-83

84-87N

87N-810

811-814N

814N-817

818-821N

821N-824

825-828N

828N-831

91-94

TABLE 3B Unalakleet River Species Apportionment by Test Period Coho Salmon

3-Day Count

583

338

436

550

2650

1174

793

1435

5074

1280

435

2265

171H3

1983

Proportion of Season Total

0000

0000

0000

0343

0199

0256

0323

1558

0690

0466

0843

2983

0752

0256

1331

Cumulative Count

583

921

1357

1907

4557

5731

6524

7959

13033

14313

14748

17013

Cumulative Proportion

0000

0000

0000

0343

0542

0798

1121

2679

3369

3835

4678

7661

8413

8669

10000

43

------------------------------------------------------------------

------------------------------------------------------------------

----- ------

TABLE 3C Unalakleet River Species Apportionment by Test Period Pink Salmon 1983

3-Day P roport ion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 0 0000

6l2N-615 0 0000

616-6l9N 97 0012

6l9N-622 332 0036

623-626N 1245 0136

626N-629 6624 0721

630-73N 3699 0403

73N-76 10762 1171

77-7l0N 7704 0838

710N-7l3 8529 0928

714-717N 9771 1063

717N-720 13845 1507

721-724N 11361 1236

724N-727 6544 0712

728-731N 3545 0386

731N-83 1628 0177

84-87N 1224 0133

87N-810 1777 0193

811-814N 802 0087

814N-817 561 0061

818-821N 533 0058

821N-824 8313 13091

825-828N 468 0051

828N-831 0 0000

91-94 0 0000

91881 10000

0 0000

0 0000

0 0000

97 0012

429 0048

1674 0184

8298 0905

11997 1308

22759 2479

30463 3317

38992 4245

48763 5308

62608 6815

73969 8051

80513 8763

84058 9149

85686 9326

86910 9459

88687 9652

89489 9739

90050 9800

90583 9858

91413 9949

91881 10000

91881 10000

91881 1 0000 44

------------------------------------------------------------------

------------ ------------------------------------------------------

----- ------

TABLE 3D Unalakleet River Species Apportionment by Test Period Chum Salmon 1983

3-Day Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 100 0017

612N-615 268 0046

616-619N 838 0144

619N-622 1180 0202

623-626N 2744 0471

626N-629 1569 0270

630-73N 796 0137

73N-76 2972 0510

77-710N 2068 0355

710N-713 2622 0450

714-717N 4133 0710

717N-720 5596 0960

721-724N 4978 0854

724N-727 8974 1540

728-731N 2241 0385

731N-83 2079 ~0357

84-87N 3009 0516

87N-810 2432 0417

811-814N 937 0161

814N-817 454 0078

818-821N 2584 0443

821N-824 2739 0470

825-828N 1783 0306

828N-831 765 0131

91-94 412 0070

58273 10000 45

0 0000

100 0017

368 0063

1206 0207

2386 0409

5130 0880

6699 1150

7495 1287 f

10467 1797

12535 2152

15157 2602

19290 3312

24886 4272

29864 5216

38838 6666

41079 7051

43158 7408

46167 7924

48559 8341

49536 8502

49990 8580

52574 9023

55313 9493

57096 9799

57861 9930

58273 1 0000

-------------------------------------------------------------

------------------------- ------------------------------------

TABLE 4 Unalakleet River Test Net Proportions by Sample Perio-d 1983 ( Selective CPUE)

Dates Chinook Coho Pink Chum Misc

64-68 105 00 00 895

69-612N 24 00 83 893

612N-615 1C~ 5 00 61 834

616-619N 78 18 156 748

619N-622 23 45 160 772

623-626N 65 112 247 576

626N-629 22 553 131 294

630-73N 16 576 124 284

73N-76 10 572 158 260

77-710N 00 555 149 296

710N-713 00 540 166 294

714-717N 14 00 513 217 256

717N-720 00 00 532 215 253

721-724N 04 00 493 216 287

724N-727 00 18 202 277 503

728-731N 00 23 242 153 582

731N-83 00 30 112 143 715

84-87N 44 98 241 617

87N-810 182 122 167 529

811-814N 139 95 111 655

814N-B17 96 68 55 7B1

B18-B21N 105 39 1B9 667

821N-824 263 43 142 552

825-B28N 145 53 202 600

828N-831 97 00 171 732

91-94 396 00 72 532

46

--------

--------

TABLE 4 Una1ak1et River Test Net Proportions 1983 ( Selective CPUE) (Continued)

Comparative Apportionment

Species Apportionment

Chinook 2790 Coho 17013 Pink 91881 Churn 58273

------shySubtotal 169957

Misc Species 152537 ------shy

Total 322494

Substrate Comparison -------------------shy

Bank Counts -----shy

South 148465 North 174029

------shy

Total 322494

Percent of Total Counts

09 53

285 181

5408

472

1000

Percent

460 540

1000

47

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TABLE 5A Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

May 27 28

21 5 482

13 13

1313

1313 21 5 697

13 13

1313

1313 30 240 0 013 937 0 00 31 246 2 41 1183 2 08

June 1 237 0 00 1420 2 07 2 3

256 585

13 13

013 bull 13 13

1676 2 261

2 2

6bull 13 4

5 6 8

160 120 middot 125

13 1

13 42 130

2 421 2541 2666

~ 2 3 3

bull 13 4 136 136

9 122 0 130 2788 3 05 11 117 00 2905 3 05 12 126 13 00 3031 3 05 13 117 1 43 3148 4 06 15 118 0 013 3266 4 136 16 116 1 43 3382 5 138 18 240 13 130 3622 5 07 19 121 0 00 3743 5 07 20 116 0 00 3859 5 136 22 118 1 42 3977 6 138 23 119 1 42 4196 7 08 25 240 0 013 4336 7 138 26 119 13 1313 4455 7 138 27 119 13 1313 4574 7 138 29 1213 13 130 4694 7 137 313 1213 13 00 4814 7 07

July 2 238 0 1313 51352 7 07 3 118 13 013 51713 7 07 4 118 1 42 5288 8 138 6 122 0 00 5410 8 07 7 116 13 00 5526 8 07

10 126 0 1313 5652 8 07 11 119 0 013 5771 8 07 13 116 13 130 5887 8 07 14 119 2 84 6006 10 07 17 122 0 00 6128 10 07 18 112 0 1313 6240 10 136 20 119 13 00 6359 10 06 21 112 0 013 6471 10 06

6471 10

48

------------------------------------------------------------------

------------------------------------------------------------------

TABLE 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983

Cum Cum Date Hours Catch CPUE Hours Catch CPUE

July 24 26

115 120 0 00

115 235

0 0

00

00 27 117 4 00 352 0 00 29 117 0 137 469 4 34 31 116 3 103 585 7 48

August 2 122 0 00 706 7 40 3 122 2 66 828 9 43 5 118 1 34 946 10 42 7 128 14 437 1074 24 89 9 257 14 218 1331 38 114

10 125 21 672 1456 59 162 12 13 middot- 0 00 1469 x 59 161 14 10 7 12 449 1576 71 180 16 122 2 66 1698 73 172 17 123 6 196 1821 79 174 19 118 1 34 1939 80 165 21 112 6 214 2051 86 168 23 120 3 100 217 1 89 164 24 115 2 70 2286 91 159 26 115 5 174 2401 96 160 28 119 0 00 2520 96 152 30 119 4 1 34 2639 100 152 31 117 1 34 2756 101 147

Sept 2 123 5 33 2879 106 147 4 479 15 125 3358 121 144 6 238 11 185 3596 132 147 7 237 5 84 3833 137 143 8 238 6 1 01 4071 143 141 9 242 10 1 65 4313 153 142

10 242 3 50 4555 156 137 11 242 2 33 4797 158 132 12 241 8 133 5038 166 132 14 227 14 247 5265 180 137 15 242 9 149 5507 189 137 16 210 3 57 5717 192 134 17 239 2 33 5956 194 130 18 230 2 35 6186 196 127 20 489 4 33 6675 200 120 21 24 3 50 6915 203 117 22 242 0 00 7157 203 113 23 234 1 17 7391 204 110

----shy

7391 204

Mesh size = 5 14 from 724 to 810

49

------------------------------------------------------------------

TABLE 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE ------~-----------------------------------------------------------June 16 122 1 33 122 1 33

17 118 0 bull 0 0 240 1 17 20 120 2 67 360 3 33 21 118 0 00 478 3 25 23 119 2 67 597 5 34 24 119 3 102 716 8 45 27 116 19 655 832 27 130 28 120 22 733 952 49 206 30 120 40 1333 1072 89 332

July 1 115 36 1252 1187 125 421 4 122 30 983 1309 155 474 5 114 47 1649 1423 202 568 7 118 30 1016 1541 232 602 8 120 shy 24 800 1661 -$ 256 616

11 122 42 1377 1783 298 669 12 120 29 967 1903 327 687 14 116 37 1276 2019 364 721 15 118 40 1356 2137 404 756 18 121 60 1976 2258 464 822 19 119 30 740 2377 494 831 21 125 61 1952 2502 555 887 22 118 25 847 2627 580 883 25 122 16 525 2749 596 867 26 116 15 517 2865 611 853 28 122 28 918 2987 639 856 29 117 11 376 3104 650 838

August 1 120 7 233 3224 657 815 2 119 9 303 3345 666 796 4 120 3 100 3465 669 772 5 118 5 170 3583 674 752 8 114 7 245 3697 681 734

11 123 7 337 3 82 0 688 720 15 118 2 68 3938 690 701 16 113 5 177 4051 695 686 18 98 3 122 4149 698 673 19 119 1 34 4268 699 655 22 112 0 00 4380 699 638 23 115 0 00 4495 699 622 25 120 2 66 4615 701 606 26 112 1 36 4727 702 594 29 116 0 00 4843 702 580 30 11 5 0 00 4958 702 566

Sept 1 115 0 00 5079 702 553 2 112 0 00 5191 702 541

----shy5079 702

50

-----------------------------------------------------------------

------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

June 5 73 0 00 73 0 00 7 126 0 00 199 0 00 8 127 0 00 326 0 bull 0 0

10 11 4 3 105 440 3 27 12 113 2 71 553 5 36 14 119 1 34 672 6 36 15 116 4 138 788 10 51 17 116 3 103 904 13 56 19 118 6 203 1022 19 74 21 118 0 00 1140 19 67 22 117 10 342 1257 29 92 24 116 3 103 1373 32 93 26 119 11 370 1492 43 115 28 11 8 6 203 1610 $ 49 122 29 115 13 452 1725 62 144

July 1 119 8 269 1844 70 152 3 119 17 571 1963 87 177 5 119 13 437 2082 100 192 6 12 0 17 567 2202 117 213 8 121 7 231 2323 124 214

10 11 4 18 632 2437 142 233 12 115 12 417 2552 154 241 13 116 37 1276 2668 191 286 15 117 16 547 2785 207 297 17 11 8 31 1051 290 3 238 328 19 118 18 610 3021 256 339 20 115 29 1009 3136 285 364 22 122 17 557 3258 302 371 24 115 24 835 3373 326 387 26 120 19 633 3493 345 395 27 117 11 376 3610 356 394 29 117 14 479 3727 370 397 31 116 18 621 3843 388 404

August 2 121 9 298 3964 397 401 3 122 17 557 4086 414 405 5 11 8 8 271 4204 422 402 7 128 19 594 4332 441 407 9 257 10 156 4589 451 393

10 125 14 448 4714 464 394 12 13 1 308 4727 465 393 14 107 5 187 4834 470 389 16 122 4 131 4956 474 383 17 123 15 488 5079 489 385 19 118 8 271 5197 497 383 21 112 3 107 5309 500 378 23 120 6 200 5429 506 373 24 115 7 243 5544 513 370

51

-----------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 (Continued)

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

August 26 115 5 174 5657 518 366 28 119 1 34 577 6 519 359 30 119 4 134 5895 523 355 31 117 0 00 6012 523 3 48

Sept 2 123 3 98 613 5 526 343 4 479 2 17 6614 528 319 6 238 1 17 6852 529 309 7 237 0 00 7089 529 298 8 9

238 242

1 2

17

33 7327 7569

clt

530 532

289 281

10 242 3 50 7811 535 274 11 242 0 00 8053 535 266 12 241 2 33 8294 537 259 14 227 3 53 8521 540 253 15 242 0 00 8763 540 246 16 210 1 19 8973 541 241 17 239 2 33 9212 543 236 18 230 0 00 9442 543 230 20 489 0 00 9931 543 219 21 240 2 33 10171 545 214 22 242 0 0 10413 545 209 23 234 0 00 10647 545 205

----shy

10647 545

52

------------------------------------------------------------------------

------

TABLE 6A Unalakleet River Sonar Site Drift Sets5 1 4n Me sh 19 83 bull

Date Time Result

July 19 1405-1413 1 burbot July 23 1040-1055 1 pink caracass July 27 1520-1530 1 coho August 3 1444-1501 4 coho August 22 1930-1937 0 August 23 937-943 1 coho 1 pink carcass August 26 1117-1127 1 coho 3 churn August 31 1018-1034 3 churn

TABLE 6B Unalakleet River Sonar Site Beach Seines 1983

Date Time Distance Result

July 20 1445 120 meters 4 pink 1 churn 13 Dolly Varden 1 whitefish

July 25 1500 120 meters 6 pink 1 churn 1 Dolly Varden 4 whitefish 1 grayling

July 28 1700 120 meters 4 coho 2 pink 2 churn 1 Dolly Varden

August 1 2010 300 meters 4 pink 3 churn 8 Dolly Varden

August 4 1015 130 meters 5 coho 3 pink 3 churn 65 Dolly Varden 3 whitefish 3 grayling

August 24 1110 130 meters 18 coho 2 Dolly Varden 2 grayling

August 29 1715 120 meters 11 coho 1 pink 69 churn 1 Dolly Varden 2 grayling

Seine done at mile 12 Unalakleet River

53

--------------------------------------------------------------------------------------------------

--------------------------------------------------------------------------------------------------

TABLE 7 AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER CATCH SAMPLE SPORT CATCH AND SPAWNING SURVEYS 1983

II

COMBINED 3-2 4-2 4-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 31 646 6702 5 104 5010 8 167 5688 1 21 5900

Female 17 354 8540 o o 1 21 5450 o o

Total 48 1000 7353 5 104 5010 9 188 5661 1 21 5900

~ 11)

5-2 6-2 7-2 7-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 11 229 7382 6 125 8350 0 0 0 0

Female 2 42 7925 12 250 8742 1 21 10650 1 21 8350

Total 13 271 7465 18 375 8611 1 21 10650 1 21 8350

TABLE 8A AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER TEST NET SAMPLE 1983

-----~-------------------------------------------------------------------------------------------------------

gt

COMBINED 4-2 5-2 5-3 6-2 7-2 NO LENGIH NO LENGIH NO LENGIH NO LENGTH NO LENGTH NO LENGTr

8 14 n

Male 3 333 8107 0 1 111 5800 o 0 2 222 9260 0 0 Female 6 667 8295 0 0 1 111 7600 o o 4 444 8310 1 111 8930 Total 9 10 e 0 8232 0 o 2 222 6700 o o 6 667 8627 1 111 8930

If) If)

5 14 Male 19 1000 6298 12 632 5392 4 211 6990 0 o 3 158 8997 0 0 Female o 0 o o o o o o 0 0 0 0 Total 19 1000 6298 12 632 5392 4 211 6990 o o 3 158 8997 0 0

4 n or Smaller Male 6 667 5930 1 111 4660 2 222 6325 3 333 6090 0 o 0 o Female 3 333 8970 o o o o o o 3 333 8970 0 o Total 9 1000 6943 1 111 466 2 222 6325 3 33 3 6090 3 33 3 8970 0 0

TOTAL Hale 28 757 6413 13 351 5336 7 189 6630 3 8 1 6090 5 13 5 9102 o 0 Female 9 243 852 o o 1 27 7600 o o 7 189 8593 1 2 7 8930 Total 37 1000 6925 13 351 5336 8 216 6751 3 8 1 6090 12 324 88 e 5 1 2 7 8930

---------------------------------------------------------------------------------------------------------

---------------------------------------------------------------------------------------------------------

TABLE 8B AGE SEX AND SIZE COMPOSITION OF NORTON SOUND COHO SALMON UNALAKLEET RIVER TEST NET SAMPLE 5 14 AND 5 78 GEAR 1983

COMBINED 3-2 4-3 4-4 5-4 NO LENGIH NO LENGIH NO LENGTH NO LENGIH NO LENGTH

Male 9 900 5489 0 0 9 900 5489 0 0 Female 1 10 bull 0 552 QJ QJ 0 1 10QJ 5520 0 0 Total 10 1000 5492 0 0 10 1000 5492 0 0 725-731

bull LI)Male 15 938 5645 15 938 5645 Female 1 62 575 QJ 1 62 575 QJ Total 16 lQJ0QJ 5651 16 100QJ 5651 81-87

Male 24 545 5668 23 523 5768 1 23 3350 Female 20 455 5631 20 455 5631 0 0 Total 441QJ0QJ 5651 43 977 57 QJ 4 1 23 335 QJ 88-814

Male 7 500 5797 7 500 5797 QJ 0 Female 7 500 5596 6 429 5587 1 71 5650 Total 14 1000 5696 13 929 1 71 5650570 815-821

Male 5 455 5492 5 455 5492 Female 6 545 5552 6 545 5552 Total 11 lQJ00 5525 11 100QJ 5525 822-828

Figure 4B Specie middotapp~~tionment coho salmon Unalakleet sonar 1983

30

25

co ~

20

1 t~

C $

u 1 5 CD a

10

5

5 10 15 20 25 31 5 10 15 20 25 31 5

Ju August Sept e

Figure 4C Specie apportionment pink salmon Unalakleet sonar 1983

1 6

1 5

14

1 3

12

1 1

c II U CII

Ashy

10

9

a

7

01 ~

6

5

4

3

2

1

1 5 10 1 5

June

2 O 25 30 5 10 15 20

Ju Iy

25 31 5 10 15 20

August

25 31 5 10

Septem

Figure 40 Species apportionment chum salmon Unalakleet sonar 1983

16

1 5

1 4

13

1 2

1 1

10

9 c 8GI U

GI middot7 A

6

5

4

3

2

1

~

o N

~

1 5 10 15 20 25 30 5 10 15 20 25 3 1 5 10 15 20 25 31 5 10

June Ju Iy August Sept e

Figure 5 Specie apportionment Unalakleet sonar 1983

50

4

40

35

c J 30 0 U

~ 0 25 0 c Q)

u ~

Q) 20a

15

10

5

o L-_lt---__

King Coho Pink Chum Misc

21

----

Figure 6 Sector distribution of counts Unalakleet sonar1983

35

30

25

c 20 G)

() G) 15

0

10

5

35

30

25 c G)

() 20

G)

0 15

10

5

( s ()u t h ban k )

July 3-5

~-2 4 6 8 1 0 1 2 1 4 1 6shy

Sector

August 21-23

2 4 6 8 10 12 14 16

Sector

22

Figure 7 Hourly distribution of counts Unalakleet sonar 1983

(south bank)

14

12

10

c 8 GI U ~

6

July 3-5

~GI

I =~ Q

4

2 0

2 4 6 8 10 12 14 1 6 18 20 22 24

TIme

9

8

7

6

5 c GI U ~ 4 GI

Q

3

2

August 21-23

1

0

2 4 6 8 10 12 14

TIme

16

23

18 20 22 24

Figure 8 Unalakleet River Test Fishing Daily King CPUE in 8 14 mesh 1983

10

9 N

8 shy

7 I 0 c 6E

n

l J I I

0 0 5 c (J 4 co 0

3

2

1

I I

27 1 5 10 15 20 25 1 5 10 15 20 25 31

~ June July

Figure 9 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1983bull

~

middot10

09 U N

I 08 0 c 07E I ()

- 06 E-0 0 05 shy~ () 04 ca - ()

03E I 0 02

01

27 1 5 10 15 2Q 25 1 5 10 15 20 25 31

June July

Figure 10 Unalakleet River Test Fishing Daily Coho CPUE in 5 78 mesh 1983

1

6

5

I 0

NI II I 0 t

E 4

0 0 c 3() cu 0

2

1

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sept U

Figure 11 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1983

200

175

150

I 0 c 125E I ()

E

r-shy-0 I I N 0 100 c ()-as ()

75E I 0

50

25

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sel ber

20

Figure 12 Unalakleet River Test Fishing Daily Pink CPUE in 4 mesh 1983

18

I

0) N

II

16

I ishy

14 J 0 t 12shyE 0 10 0 shys 8 () as

0 6 1 I V 4

2

~ I

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

--

Figure 13 Unalakleet River Test Fishing Cumulat ive Pink CPUE in 4 mesh 1983

10

9 01 N 8

J 0 J 7 E J 0 6 E- 50 ~

amp 4() ca

0 3 E J

0 2

1

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

Figure 14 Unalakleet River Test Fishing Daily CPUE in 5 14 amp 5 78 mesh 1983

14

13shy

12

11

10

9 J 0 8

I z shy-E 7 0 0 shys ~u aI 0

4 I

31

2

1

II

0 C1)I 11

I I I II

bull y AA(net changed to 5 78

AA A 11 I

~ I~ V ~

- I

VI

1 5 10 15 20- 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

cJune July August

Figure 15 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 14 amp 5 78 mesh 1983

It

5

--l C)

net changed to 5 78

~ 4 o

c E (J ~

3E o o c 2 u ~ -(J

E ~ (J 1

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 16 Unalakleet River Test Fishing Catch Proportions 1983

60

55

---- King50

__ Coho 45

P--Q Pink

40 __ Chum

I LU 35J D I 0

30 ICQ 0 25 I

N Cl0 20

c G)

15u G)

D

10

5 A 1 I

I 4 I

I I

3 lt

~

2

I I1 - I bull I

I ~ ~ ~ t -J ~~ - _

r

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 17 Unalakleet Area Temperatures 1983

18

16

14

12

til 10I

u-G) 80 CI) G) G) 6 C) G)

Q 4

2

C) C)

__ Air

0--0 River 2

0

-2

-4

---------~ ~

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August 5e

4

Figure 18 Unalakleet River Turbidity and Depth 1983

__ Secchi Reading

-t ()

II) G)-G)

3

iE 2

1

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August

~ 1 _ ~ r--- I shy I __ I 01 --shy

Figure 19 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1981-83

27 31 5

May

_1981

____ 1982

o 0 1983 11) C)

Changed to 5 78 mesh

I

t

~-~o-~ Q-O--Oolt)-(IQ-----l

--1

_10 15 20 25 30 5 10 15 20 25 31

June July

I I I

~

0 ~

r E ~

CJ shyE 0 0 I

shyr u-cu CJ

E ~

CJ

4

35

30

25

20

15

10

05

Figure 20 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 78 mesh 1981-83

5

4 lI 0

z

E lI 0 3 E-0 0 2 r CJ-cu 0

E lI 1 0

__1981 ~~

~ ___1982

a 01983 5 148 mesh from 65-810

_----shy-- 0 - -- C1) A - _ - ~

~ I

I

II I I I I I

I I

1

~ -

-

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 21 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 mesh- 1981-83

8

70

60

50

40 0

r 30E

0 20E-0 0 10 s= u 8 tV 0 6E 0 4

2

__1981 ____ 1982

_1983

shy--- -- shy--- shy J - -

I

I

C1- J

I

-----l---l ~--~r---------------r--

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 22 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1981-83

_1981

~ __ 1982

~1983

25

00I _ __ _ _ C)~ I __ _ I

I V o 20 rt I I

E I AshyI o E 15-o o z u 10 tU o E I o 5

I

1 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

July August 5

----------------------------------------------------------------

Table 1 Unalakleet River Subsistence King Salmon Index 1983

Number of Number of Date Fishermen Chinook Average

08 02 18 05 05 00 02 58 92 62 72 72 42 28 52 60 62 20 47 50 35 25 15

June 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Totals

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 4 4 4

4

3 1 7 2 2 o 1

23 37 25 29 29 17 11 21 24 25

6 14 15 14 H~

6

322

~

39

---------------------- ---------- --------------------------------------

----------------------------------------------------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983

Daily Proportion Cumu1 Prop Date South North Total of Total Cumulative of Total

64 7 23 30 1313131 313 013131 65 44 187 231 00137 261 01308 66 12 162 174 01305 435 01313 67 8 283 291 1313139 726 01322 68 0000 726 13022 69 3 221 224 013137 950 13029 610 26 245 271 131308 1221 13037 611 56 254 310 131310 1531 131347 612 44 736 780 013 24 2311 13071 613 64 1188 1252 01339 3563 01113 614 59 1752 1811 0056 5374 0166 615 97 844 941 01329 6315 0195 616 165 729 894 0028 7209 0223 617 151 i 604 1755 0054 8964 middot 0277 618 i ll 1524 1635 0051 10599 13328 619 175 2000 2175 0067 12774 13395 620 171 21320 2191 0068 14965 0463 621 220 1613 1833 0057 16798 0520 622 199 2065 2264 0070 19062 0590 623 362 21334 2396 0074 21458 13664 624 876 3403 4279 13133 25737 0797 625 1244 2023 3267- 0101 29004 0898 626 738 1601 2339 0073 31343 0971 627 573 3265 3838 0119 35181 1090 628 547 1868 2415 0075 37596 1165 629 528 4028 4556 0141 42152 1306 630 430 430 0013 42582 1319 71 240 240 01307 42822 1326 72 201 975 1176 0036 43998 1362 73 309 8842 9151 0284 53149 1646 74 475 6385 6860 0213 60009 1859 75 565 3342 3907 0121 63916 1980 76 1377 2094 3471 0108 67387 2088 77 1416 3173 4589 0142 71976 2230 78 1472 1420 2892 0090 74868 2320 79 2071 1452 3523 01113 78391 2430 710 3318 2434 5752 0178 84143 2608 711 2673 2866 5539 13172 89682 2780 712 1665 1747 3412 13106 93094 2886 713 21317 1951 3968 13123 97062 3009 714 2991 2664 5655 0175 102717 3184 715 2646 2548 5194 13161 107911 3345 716 2488 2886 5374 0167 113285 3512 717 1585 4063 5648 0175 118933 3687 718 3559 9326 12885 0400 131818 4087 719 2948 2398 5346 13166 137164 4253 720 1640 3330 4970 0154 142134 4407 721 2416 6420 8836 0274 150970 4681 722 3298 3298 0102 154268 4783 723 5007 5007 0155 159275 4938

40

--------------------------------------------------------------------

--------------------------------------------------------------------

-----------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983 (Continued)

Daily Proportion Cum Prop Date South North Total of Total Cumu1at i ve of Total

724 4005 7804 11809 0366 171084 5304 725 2453 3392 5845 0181 176929 5485 726 2166 12094 14260 0442 191189 5927 727 1914 4472 6386 0198 197575 6125 728 1603 3463 5066 0157 202641 6282 729 1251 1914 3165 0098 205806 6380 730 1710 2495 4205 en30 210011 6510 731 2542 1887 4429 0137 214440 6647 81 4479 2271 6750 0209 221190 6856 82 1103 1806 2909 0091 224099 6947 83 1719 942 2661 0083 226760 bull 7030 84 1519 2557 4076 0126 230836 7156 85 1259 1113 2372 0074 233208 7230 86 940 2189 3129 0097 236337 7327 87 1467 4354 5821 0180 242158 7507 88 2318 1584 3902 0121 246060 7628 89 2098 1505 3603 0112 249663 7740 810 2629 1517 4146 bull 0129 253809 7869 811 3753 1091 4844 0150 258653 8019 812 1489 523 2012 0062 260665 8081 813 744 353 1097 0034 261762 8386 814 981 981 bull 0030 262743 8145 815 2324 2324 0072 265067 8217 816 2638 2638 0082 267705 8299 817 2073 731 2804 0087 270509 8115 818 2244 675 2919 0091 273428 8477 819 3240 696 3936 0122 277364 8599 820 2363 503 2866 0089 280230 8688 821 6789 1111 7900 0245 288130 8933 822 6489 563 7052 0219 295182 9152 823 5077 298 5375 0167 300557 9319 824 2616 298 2914 0090 303471 9409 825 3933 412 4345 0135 307816 9544 826 1393 554 1947 0060 309763 9604 827 1203 463 1666 0052 311429 9656 828 1197 542 1739 0054 313168 9710 829 1244 221 1465 0045 314633 9755 830 1011 199 1210 0038 315843 9793 831 718 214 932 0029 316775 9822 91 1324 318 1642 0052 318417 9874 92 1362 307 1669 0052 320086 9926 93 1146 314 1460 0045 321546 9971 94 652 296 948 bull 0029 322494 10000

148465 174029 322494 10000

41

----------------------------------------------------------------------

-------------------------------------------------------------------- --

------

TABLE 3A Unalakleet River Species Apportionment by Test Period King Salmon 1983

3-Day App Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 76 0272 76 0272

69-612N 28 0100 104 0372

612N-615 461 1652 565 2024

616-619N 419 1502 984 3526

619N-622 170 0609 1154 4135

623-626N 722 2588 1876 6723

626N-629 264 0946 2140 7669

630-73N 103 0639 2243 8038

73N-76 188 0674 2431 8712

77-710N 0 0000 2431 8712

710N-713 0 0000 2431 8712

714-717N 267 0957 2698 9969

717N-720 0 0000 2698 9669

721-724N 92 0331 2790 1 0000

724N-727 0 0000 2790 10000

728-731N 0 0000 2790 1 0000

731N-83 0 0000 2790 1 0000

2790 10000

42

Dates

714-717N

717N-720

721-724N

724N-727

728-731N

731N-83

84-87N

87N-810

811-814N

814N-817

818-821N

821N-824

825-828N

828N-831

91-94

TABLE 3B Unalakleet River Species Apportionment by Test Period Coho Salmon

3-Day Count

583

338

436

550

2650

1174

793

1435

5074

1280

435

2265

171H3

1983

Proportion of Season Total

0000

0000

0000

0343

0199

0256

0323

1558

0690

0466

0843

2983

0752

0256

1331

Cumulative Count

583

921

1357

1907

4557

5731

6524

7959

13033

14313

14748

17013

Cumulative Proportion

0000

0000

0000

0343

0542

0798

1121

2679

3369

3835

4678

7661

8413

8669

10000

43

------------------------------------------------------------------

------------------------------------------------------------------

----- ------

TABLE 3C Unalakleet River Species Apportionment by Test Period Pink Salmon 1983

3-Day P roport ion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 0 0000

6l2N-615 0 0000

616-6l9N 97 0012

6l9N-622 332 0036

623-626N 1245 0136

626N-629 6624 0721

630-73N 3699 0403

73N-76 10762 1171

77-7l0N 7704 0838

710N-7l3 8529 0928

714-717N 9771 1063

717N-720 13845 1507

721-724N 11361 1236

724N-727 6544 0712

728-731N 3545 0386

731N-83 1628 0177

84-87N 1224 0133

87N-810 1777 0193

811-814N 802 0087

814N-817 561 0061

818-821N 533 0058

821N-824 8313 13091

825-828N 468 0051

828N-831 0 0000

91-94 0 0000

91881 10000

0 0000

0 0000

0 0000

97 0012

429 0048

1674 0184

8298 0905

11997 1308

22759 2479

30463 3317

38992 4245

48763 5308

62608 6815

73969 8051

80513 8763

84058 9149

85686 9326

86910 9459

88687 9652

89489 9739

90050 9800

90583 9858

91413 9949

91881 10000

91881 10000

91881 1 0000 44

------------------------------------------------------------------

------------ ------------------------------------------------------

----- ------

TABLE 3D Unalakleet River Species Apportionment by Test Period Chum Salmon 1983

3-Day Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 100 0017

612N-615 268 0046

616-619N 838 0144

619N-622 1180 0202

623-626N 2744 0471

626N-629 1569 0270

630-73N 796 0137

73N-76 2972 0510

77-710N 2068 0355

710N-713 2622 0450

714-717N 4133 0710

717N-720 5596 0960

721-724N 4978 0854

724N-727 8974 1540

728-731N 2241 0385

731N-83 2079 ~0357

84-87N 3009 0516

87N-810 2432 0417

811-814N 937 0161

814N-817 454 0078

818-821N 2584 0443

821N-824 2739 0470

825-828N 1783 0306

828N-831 765 0131

91-94 412 0070

58273 10000 45

0 0000

100 0017

368 0063

1206 0207

2386 0409

5130 0880

6699 1150

7495 1287 f

10467 1797

12535 2152

15157 2602

19290 3312

24886 4272

29864 5216

38838 6666

41079 7051

43158 7408

46167 7924

48559 8341

49536 8502

49990 8580

52574 9023

55313 9493

57096 9799

57861 9930

58273 1 0000

-------------------------------------------------------------

------------------------- ------------------------------------

TABLE 4 Unalakleet River Test Net Proportions by Sample Perio-d 1983 ( Selective CPUE)

Dates Chinook Coho Pink Chum Misc

64-68 105 00 00 895

69-612N 24 00 83 893

612N-615 1C~ 5 00 61 834

616-619N 78 18 156 748

619N-622 23 45 160 772

623-626N 65 112 247 576

626N-629 22 553 131 294

630-73N 16 576 124 284

73N-76 10 572 158 260

77-710N 00 555 149 296

710N-713 00 540 166 294

714-717N 14 00 513 217 256

717N-720 00 00 532 215 253

721-724N 04 00 493 216 287

724N-727 00 18 202 277 503

728-731N 00 23 242 153 582

731N-83 00 30 112 143 715

84-87N 44 98 241 617

87N-810 182 122 167 529

811-814N 139 95 111 655

814N-B17 96 68 55 7B1

B18-B21N 105 39 1B9 667

821N-824 263 43 142 552

825-B28N 145 53 202 600

828N-831 97 00 171 732

91-94 396 00 72 532

46

--------

--------

TABLE 4 Una1ak1et River Test Net Proportions 1983 ( Selective CPUE) (Continued)

Comparative Apportionment

Species Apportionment

Chinook 2790 Coho 17013 Pink 91881 Churn 58273

------shySubtotal 169957

Misc Species 152537 ------shy

Total 322494

Substrate Comparison -------------------shy

Bank Counts -----shy

South 148465 North 174029

------shy

Total 322494

Percent of Total Counts

09 53

285 181

5408

472

1000

Percent

460 540

1000

47

-------------------------------------------------------------------

TABLE 5A Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

May 27 28

21 5 482

13 13

1313

1313 21 5 697

13 13

1313

1313 30 240 0 013 937 0 00 31 246 2 41 1183 2 08

June 1 237 0 00 1420 2 07 2 3

256 585

13 13

013 bull 13 13

1676 2 261

2 2

6bull 13 4

5 6 8

160 120 middot 125

13 1

13 42 130

2 421 2541 2666

~ 2 3 3

bull 13 4 136 136

9 122 0 130 2788 3 05 11 117 00 2905 3 05 12 126 13 00 3031 3 05 13 117 1 43 3148 4 06 15 118 0 013 3266 4 136 16 116 1 43 3382 5 138 18 240 13 130 3622 5 07 19 121 0 00 3743 5 07 20 116 0 00 3859 5 136 22 118 1 42 3977 6 138 23 119 1 42 4196 7 08 25 240 0 013 4336 7 138 26 119 13 1313 4455 7 138 27 119 13 1313 4574 7 138 29 1213 13 130 4694 7 137 313 1213 13 00 4814 7 07

July 2 238 0 1313 51352 7 07 3 118 13 013 51713 7 07 4 118 1 42 5288 8 138 6 122 0 00 5410 8 07 7 116 13 00 5526 8 07

10 126 0 1313 5652 8 07 11 119 0 013 5771 8 07 13 116 13 130 5887 8 07 14 119 2 84 6006 10 07 17 122 0 00 6128 10 07 18 112 0 1313 6240 10 136 20 119 13 00 6359 10 06 21 112 0 013 6471 10 06

6471 10

48

------------------------------------------------------------------

------------------------------------------------------------------

TABLE 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983

Cum Cum Date Hours Catch CPUE Hours Catch CPUE

July 24 26

115 120 0 00

115 235

0 0

00

00 27 117 4 00 352 0 00 29 117 0 137 469 4 34 31 116 3 103 585 7 48

August 2 122 0 00 706 7 40 3 122 2 66 828 9 43 5 118 1 34 946 10 42 7 128 14 437 1074 24 89 9 257 14 218 1331 38 114

10 125 21 672 1456 59 162 12 13 middot- 0 00 1469 x 59 161 14 10 7 12 449 1576 71 180 16 122 2 66 1698 73 172 17 123 6 196 1821 79 174 19 118 1 34 1939 80 165 21 112 6 214 2051 86 168 23 120 3 100 217 1 89 164 24 115 2 70 2286 91 159 26 115 5 174 2401 96 160 28 119 0 00 2520 96 152 30 119 4 1 34 2639 100 152 31 117 1 34 2756 101 147

Sept 2 123 5 33 2879 106 147 4 479 15 125 3358 121 144 6 238 11 185 3596 132 147 7 237 5 84 3833 137 143 8 238 6 1 01 4071 143 141 9 242 10 1 65 4313 153 142

10 242 3 50 4555 156 137 11 242 2 33 4797 158 132 12 241 8 133 5038 166 132 14 227 14 247 5265 180 137 15 242 9 149 5507 189 137 16 210 3 57 5717 192 134 17 239 2 33 5956 194 130 18 230 2 35 6186 196 127 20 489 4 33 6675 200 120 21 24 3 50 6915 203 117 22 242 0 00 7157 203 113 23 234 1 17 7391 204 110

----shy

7391 204

Mesh size = 5 14 from 724 to 810

49

------------------------------------------------------------------

TABLE 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE ------~-----------------------------------------------------------June 16 122 1 33 122 1 33

17 118 0 bull 0 0 240 1 17 20 120 2 67 360 3 33 21 118 0 00 478 3 25 23 119 2 67 597 5 34 24 119 3 102 716 8 45 27 116 19 655 832 27 130 28 120 22 733 952 49 206 30 120 40 1333 1072 89 332

July 1 115 36 1252 1187 125 421 4 122 30 983 1309 155 474 5 114 47 1649 1423 202 568 7 118 30 1016 1541 232 602 8 120 shy 24 800 1661 -$ 256 616

11 122 42 1377 1783 298 669 12 120 29 967 1903 327 687 14 116 37 1276 2019 364 721 15 118 40 1356 2137 404 756 18 121 60 1976 2258 464 822 19 119 30 740 2377 494 831 21 125 61 1952 2502 555 887 22 118 25 847 2627 580 883 25 122 16 525 2749 596 867 26 116 15 517 2865 611 853 28 122 28 918 2987 639 856 29 117 11 376 3104 650 838

August 1 120 7 233 3224 657 815 2 119 9 303 3345 666 796 4 120 3 100 3465 669 772 5 118 5 170 3583 674 752 8 114 7 245 3697 681 734

11 123 7 337 3 82 0 688 720 15 118 2 68 3938 690 701 16 113 5 177 4051 695 686 18 98 3 122 4149 698 673 19 119 1 34 4268 699 655 22 112 0 00 4380 699 638 23 115 0 00 4495 699 622 25 120 2 66 4615 701 606 26 112 1 36 4727 702 594 29 116 0 00 4843 702 580 30 11 5 0 00 4958 702 566

Sept 1 115 0 00 5079 702 553 2 112 0 00 5191 702 541

----shy5079 702

50

-----------------------------------------------------------------

------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

June 5 73 0 00 73 0 00 7 126 0 00 199 0 00 8 127 0 00 326 0 bull 0 0

10 11 4 3 105 440 3 27 12 113 2 71 553 5 36 14 119 1 34 672 6 36 15 116 4 138 788 10 51 17 116 3 103 904 13 56 19 118 6 203 1022 19 74 21 118 0 00 1140 19 67 22 117 10 342 1257 29 92 24 116 3 103 1373 32 93 26 119 11 370 1492 43 115 28 11 8 6 203 1610 $ 49 122 29 115 13 452 1725 62 144

July 1 119 8 269 1844 70 152 3 119 17 571 1963 87 177 5 119 13 437 2082 100 192 6 12 0 17 567 2202 117 213 8 121 7 231 2323 124 214

10 11 4 18 632 2437 142 233 12 115 12 417 2552 154 241 13 116 37 1276 2668 191 286 15 117 16 547 2785 207 297 17 11 8 31 1051 290 3 238 328 19 118 18 610 3021 256 339 20 115 29 1009 3136 285 364 22 122 17 557 3258 302 371 24 115 24 835 3373 326 387 26 120 19 633 3493 345 395 27 117 11 376 3610 356 394 29 117 14 479 3727 370 397 31 116 18 621 3843 388 404

August 2 121 9 298 3964 397 401 3 122 17 557 4086 414 405 5 11 8 8 271 4204 422 402 7 128 19 594 4332 441 407 9 257 10 156 4589 451 393

10 125 14 448 4714 464 394 12 13 1 308 4727 465 393 14 107 5 187 4834 470 389 16 122 4 131 4956 474 383 17 123 15 488 5079 489 385 19 118 8 271 5197 497 383 21 112 3 107 5309 500 378 23 120 6 200 5429 506 373 24 115 7 243 5544 513 370

51

-----------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 (Continued)

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

August 26 115 5 174 5657 518 366 28 119 1 34 577 6 519 359 30 119 4 134 5895 523 355 31 117 0 00 6012 523 3 48

Sept 2 123 3 98 613 5 526 343 4 479 2 17 6614 528 319 6 238 1 17 6852 529 309 7 237 0 00 7089 529 298 8 9

238 242

1 2

17

33 7327 7569

clt

530 532

289 281

10 242 3 50 7811 535 274 11 242 0 00 8053 535 266 12 241 2 33 8294 537 259 14 227 3 53 8521 540 253 15 242 0 00 8763 540 246 16 210 1 19 8973 541 241 17 239 2 33 9212 543 236 18 230 0 00 9442 543 230 20 489 0 00 9931 543 219 21 240 2 33 10171 545 214 22 242 0 0 10413 545 209 23 234 0 00 10647 545 205

----shy

10647 545

52

------------------------------------------------------------------------

------

TABLE 6A Unalakleet River Sonar Site Drift Sets5 1 4n Me sh 19 83 bull

Date Time Result

July 19 1405-1413 1 burbot July 23 1040-1055 1 pink caracass July 27 1520-1530 1 coho August 3 1444-1501 4 coho August 22 1930-1937 0 August 23 937-943 1 coho 1 pink carcass August 26 1117-1127 1 coho 3 churn August 31 1018-1034 3 churn

TABLE 6B Unalakleet River Sonar Site Beach Seines 1983

Date Time Distance Result

July 20 1445 120 meters 4 pink 1 churn 13 Dolly Varden 1 whitefish

July 25 1500 120 meters 6 pink 1 churn 1 Dolly Varden 4 whitefish 1 grayling

July 28 1700 120 meters 4 coho 2 pink 2 churn 1 Dolly Varden

August 1 2010 300 meters 4 pink 3 churn 8 Dolly Varden

August 4 1015 130 meters 5 coho 3 pink 3 churn 65 Dolly Varden 3 whitefish 3 grayling

August 24 1110 130 meters 18 coho 2 Dolly Varden 2 grayling

August 29 1715 120 meters 11 coho 1 pink 69 churn 1 Dolly Varden 2 grayling

Seine done at mile 12 Unalakleet River

53

--------------------------------------------------------------------------------------------------

--------------------------------------------------------------------------------------------------

TABLE 7 AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER CATCH SAMPLE SPORT CATCH AND SPAWNING SURVEYS 1983

II

COMBINED 3-2 4-2 4-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 31 646 6702 5 104 5010 8 167 5688 1 21 5900

Female 17 354 8540 o o 1 21 5450 o o

Total 48 1000 7353 5 104 5010 9 188 5661 1 21 5900

~ 11)

5-2 6-2 7-2 7-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 11 229 7382 6 125 8350 0 0 0 0

Female 2 42 7925 12 250 8742 1 21 10650 1 21 8350

Total 13 271 7465 18 375 8611 1 21 10650 1 21 8350

TABLE 8A AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER TEST NET SAMPLE 1983

-----~-------------------------------------------------------------------------------------------------------

gt

COMBINED 4-2 5-2 5-3 6-2 7-2 NO LENGIH NO LENGIH NO LENGIH NO LENGTH NO LENGTH NO LENGTr

8 14 n

Male 3 333 8107 0 1 111 5800 o 0 2 222 9260 0 0 Female 6 667 8295 0 0 1 111 7600 o o 4 444 8310 1 111 8930 Total 9 10 e 0 8232 0 o 2 222 6700 o o 6 667 8627 1 111 8930

If) If)

5 14 Male 19 1000 6298 12 632 5392 4 211 6990 0 o 3 158 8997 0 0 Female o 0 o o o o o o 0 0 0 0 Total 19 1000 6298 12 632 5392 4 211 6990 o o 3 158 8997 0 0

4 n or Smaller Male 6 667 5930 1 111 4660 2 222 6325 3 333 6090 0 o 0 o Female 3 333 8970 o o o o o o 3 333 8970 0 o Total 9 1000 6943 1 111 466 2 222 6325 3 33 3 6090 3 33 3 8970 0 0

TOTAL Hale 28 757 6413 13 351 5336 7 189 6630 3 8 1 6090 5 13 5 9102 o 0 Female 9 243 852 o o 1 27 7600 o o 7 189 8593 1 2 7 8930 Total 37 1000 6925 13 351 5336 8 216 6751 3 8 1 6090 12 324 88 e 5 1 2 7 8930

---------------------------------------------------------------------------------------------------------

---------------------------------------------------------------------------------------------------------

TABLE 8B AGE SEX AND SIZE COMPOSITION OF NORTON SOUND COHO SALMON UNALAKLEET RIVER TEST NET SAMPLE 5 14 AND 5 78 GEAR 1983

COMBINED 3-2 4-3 4-4 5-4 NO LENGIH NO LENGIH NO LENGTH NO LENGIH NO LENGTH

Male 9 900 5489 0 0 9 900 5489 0 0 Female 1 10 bull 0 552 QJ QJ 0 1 10QJ 5520 0 0 Total 10 1000 5492 0 0 10 1000 5492 0 0 725-731

bull LI)Male 15 938 5645 15 938 5645 Female 1 62 575 QJ 1 62 575 QJ Total 16 lQJ0QJ 5651 16 100QJ 5651 81-87

Male 24 545 5668 23 523 5768 1 23 3350 Female 20 455 5631 20 455 5631 0 0 Total 441QJ0QJ 5651 43 977 57 QJ 4 1 23 335 QJ 88-814

Male 7 500 5797 7 500 5797 QJ 0 Female 7 500 5596 6 429 5587 1 71 5650 Total 14 1000 5696 13 929 1 71 5650570 815-821

Male 5 455 5492 5 455 5492 Female 6 545 5552 6 545 5552 Total 11 lQJ00 5525 11 100QJ 5525 822-828

Figure 4C Specie apportionment pink salmon Unalakleet sonar 1983

1 6

1 5

14

1 3

12

1 1

c II U CII

Ashy

10

9

a

7

01 ~

6

5

4

3

2

1

1 5 10 1 5

June

2 O 25 30 5 10 15 20

Ju Iy

25 31 5 10 15 20

August

25 31 5 10

Septem

Figure 40 Species apportionment chum salmon Unalakleet sonar 1983

16

1 5

1 4

13

1 2

1 1

10

9 c 8GI U

GI middot7 A

6

5

4

3

2

1

~

o N

~

1 5 10 15 20 25 30 5 10 15 20 25 3 1 5 10 15 20 25 31 5 10

June Ju Iy August Sept e

Figure 5 Specie apportionment Unalakleet sonar 1983

50

4

40

35

c J 30 0 U

~ 0 25 0 c Q)

u ~

Q) 20a

15

10

5

o L-_lt---__

King Coho Pink Chum Misc

21

----

Figure 6 Sector distribution of counts Unalakleet sonar1983

35

30

25

c 20 G)

() G) 15

0

10

5

35

30

25 c G)

() 20

G)

0 15

10

5

( s ()u t h ban k )

July 3-5

~-2 4 6 8 1 0 1 2 1 4 1 6shy

Sector

August 21-23

2 4 6 8 10 12 14 16

Sector

22

Figure 7 Hourly distribution of counts Unalakleet sonar 1983

(south bank)

14

12

10

c 8 GI U ~

6

July 3-5

~GI

I =~ Q

4

2 0

2 4 6 8 10 12 14 1 6 18 20 22 24

TIme

9

8

7

6

5 c GI U ~ 4 GI

Q

3

2

August 21-23

1

0

2 4 6 8 10 12 14

TIme

16

23

18 20 22 24

Figure 8 Unalakleet River Test Fishing Daily King CPUE in 8 14 mesh 1983

10

9 N

8 shy

7 I 0 c 6E

n

l J I I

0 0 5 c (J 4 co 0

3

2

1

I I

27 1 5 10 15 20 25 1 5 10 15 20 25 31

~ June July

Figure 9 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1983bull

~

middot10

09 U N

I 08 0 c 07E I ()

- 06 E-0 0 05 shy~ () 04 ca - ()

03E I 0 02

01

27 1 5 10 15 2Q 25 1 5 10 15 20 25 31

June July

Figure 10 Unalakleet River Test Fishing Daily Coho CPUE in 5 78 mesh 1983

1

6

5

I 0

NI II I 0 t

E 4

0 0 c 3() cu 0

2

1

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sept U

Figure 11 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1983

200

175

150

I 0 c 125E I ()

E

r-shy-0 I I N 0 100 c ()-as ()

75E I 0

50

25

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sel ber

20

Figure 12 Unalakleet River Test Fishing Daily Pink CPUE in 4 mesh 1983

18

I

0) N

II

16

I ishy

14 J 0 t 12shyE 0 10 0 shys 8 () as

0 6 1 I V 4

2

~ I

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

--

Figure 13 Unalakleet River Test Fishing Cumulat ive Pink CPUE in 4 mesh 1983

10

9 01 N 8

J 0 J 7 E J 0 6 E- 50 ~

amp 4() ca

0 3 E J

0 2

1

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

Figure 14 Unalakleet River Test Fishing Daily CPUE in 5 14 amp 5 78 mesh 1983

14

13shy

12

11

10

9 J 0 8

I z shy-E 7 0 0 shys ~u aI 0

4 I

31

2

1

II

0 C1)I 11

I I I II

bull y AA(net changed to 5 78

AA A 11 I

~ I~ V ~

- I

VI

1 5 10 15 20- 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

cJune July August

Figure 15 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 14 amp 5 78 mesh 1983

It

5

--l C)

net changed to 5 78

~ 4 o

c E (J ~

3E o o c 2 u ~ -(J

E ~ (J 1

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 16 Unalakleet River Test Fishing Catch Proportions 1983

60

55

---- King50

__ Coho 45

P--Q Pink

40 __ Chum

I LU 35J D I 0

30 ICQ 0 25 I

N Cl0 20

c G)

15u G)

D

10

5 A 1 I

I 4 I

I I

3 lt

~

2

I I1 - I bull I

I ~ ~ ~ t -J ~~ - _

r

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 17 Unalakleet Area Temperatures 1983

18

16

14

12

til 10I

u-G) 80 CI) G) G) 6 C) G)

Q 4

2

C) C)

__ Air

0--0 River 2

0

-2

-4

---------~ ~

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August 5e

4

Figure 18 Unalakleet River Turbidity and Depth 1983

__ Secchi Reading

-t ()

II) G)-G)

3

iE 2

1

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August

~ 1 _ ~ r--- I shy I __ I 01 --shy

Figure 19 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1981-83

27 31 5

May

_1981

____ 1982

o 0 1983 11) C)

Changed to 5 78 mesh

I

t

~-~o-~ Q-O--Oolt)-(IQ-----l

--1

_10 15 20 25 30 5 10 15 20 25 31

June July

I I I

~

0 ~

r E ~

CJ shyE 0 0 I

shyr u-cu CJ

E ~

CJ

4

35

30

25

20

15

10

05

Figure 20 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 78 mesh 1981-83

5

4 lI 0

z

E lI 0 3 E-0 0 2 r CJ-cu 0

E lI 1 0

__1981 ~~

~ ___1982

a 01983 5 148 mesh from 65-810

_----shy-- 0 - -- C1) A - _ - ~

~ I

I

II I I I I I

I I

1

~ -

-

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 21 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 mesh- 1981-83

8

70

60

50

40 0

r 30E

0 20E-0 0 10 s= u 8 tV 0 6E 0 4

2

__1981 ____ 1982

_1983

shy--- -- shy--- shy J - -

I

I

C1- J

I

-----l---l ~--~r---------------r--

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 22 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1981-83

_1981

~ __ 1982

~1983

25

00I _ __ _ _ C)~ I __ _ I

I V o 20 rt I I

E I AshyI o E 15-o o z u 10 tU o E I o 5

I

1 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

July August 5

----------------------------------------------------------------

Table 1 Unalakleet River Subsistence King Salmon Index 1983

Number of Number of Date Fishermen Chinook Average

08 02 18 05 05 00 02 58 92 62 72 72 42 28 52 60 62 20 47 50 35 25 15

June 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Totals

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 4 4 4

4

3 1 7 2 2 o 1

23 37 25 29 29 17 11 21 24 25

6 14 15 14 H~

6

322

~

39

---------------------- ---------- --------------------------------------

----------------------------------------------------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983

Daily Proportion Cumu1 Prop Date South North Total of Total Cumulative of Total

64 7 23 30 1313131 313 013131 65 44 187 231 00137 261 01308 66 12 162 174 01305 435 01313 67 8 283 291 1313139 726 01322 68 0000 726 13022 69 3 221 224 013137 950 13029 610 26 245 271 131308 1221 13037 611 56 254 310 131310 1531 131347 612 44 736 780 013 24 2311 13071 613 64 1188 1252 01339 3563 01113 614 59 1752 1811 0056 5374 0166 615 97 844 941 01329 6315 0195 616 165 729 894 0028 7209 0223 617 151 i 604 1755 0054 8964 middot 0277 618 i ll 1524 1635 0051 10599 13328 619 175 2000 2175 0067 12774 13395 620 171 21320 2191 0068 14965 0463 621 220 1613 1833 0057 16798 0520 622 199 2065 2264 0070 19062 0590 623 362 21334 2396 0074 21458 13664 624 876 3403 4279 13133 25737 0797 625 1244 2023 3267- 0101 29004 0898 626 738 1601 2339 0073 31343 0971 627 573 3265 3838 0119 35181 1090 628 547 1868 2415 0075 37596 1165 629 528 4028 4556 0141 42152 1306 630 430 430 0013 42582 1319 71 240 240 01307 42822 1326 72 201 975 1176 0036 43998 1362 73 309 8842 9151 0284 53149 1646 74 475 6385 6860 0213 60009 1859 75 565 3342 3907 0121 63916 1980 76 1377 2094 3471 0108 67387 2088 77 1416 3173 4589 0142 71976 2230 78 1472 1420 2892 0090 74868 2320 79 2071 1452 3523 01113 78391 2430 710 3318 2434 5752 0178 84143 2608 711 2673 2866 5539 13172 89682 2780 712 1665 1747 3412 13106 93094 2886 713 21317 1951 3968 13123 97062 3009 714 2991 2664 5655 0175 102717 3184 715 2646 2548 5194 13161 107911 3345 716 2488 2886 5374 0167 113285 3512 717 1585 4063 5648 0175 118933 3687 718 3559 9326 12885 0400 131818 4087 719 2948 2398 5346 13166 137164 4253 720 1640 3330 4970 0154 142134 4407 721 2416 6420 8836 0274 150970 4681 722 3298 3298 0102 154268 4783 723 5007 5007 0155 159275 4938

40

--------------------------------------------------------------------

--------------------------------------------------------------------

-----------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983 (Continued)

Daily Proportion Cum Prop Date South North Total of Total Cumu1at i ve of Total

724 4005 7804 11809 0366 171084 5304 725 2453 3392 5845 0181 176929 5485 726 2166 12094 14260 0442 191189 5927 727 1914 4472 6386 0198 197575 6125 728 1603 3463 5066 0157 202641 6282 729 1251 1914 3165 0098 205806 6380 730 1710 2495 4205 en30 210011 6510 731 2542 1887 4429 0137 214440 6647 81 4479 2271 6750 0209 221190 6856 82 1103 1806 2909 0091 224099 6947 83 1719 942 2661 0083 226760 bull 7030 84 1519 2557 4076 0126 230836 7156 85 1259 1113 2372 0074 233208 7230 86 940 2189 3129 0097 236337 7327 87 1467 4354 5821 0180 242158 7507 88 2318 1584 3902 0121 246060 7628 89 2098 1505 3603 0112 249663 7740 810 2629 1517 4146 bull 0129 253809 7869 811 3753 1091 4844 0150 258653 8019 812 1489 523 2012 0062 260665 8081 813 744 353 1097 0034 261762 8386 814 981 981 bull 0030 262743 8145 815 2324 2324 0072 265067 8217 816 2638 2638 0082 267705 8299 817 2073 731 2804 0087 270509 8115 818 2244 675 2919 0091 273428 8477 819 3240 696 3936 0122 277364 8599 820 2363 503 2866 0089 280230 8688 821 6789 1111 7900 0245 288130 8933 822 6489 563 7052 0219 295182 9152 823 5077 298 5375 0167 300557 9319 824 2616 298 2914 0090 303471 9409 825 3933 412 4345 0135 307816 9544 826 1393 554 1947 0060 309763 9604 827 1203 463 1666 0052 311429 9656 828 1197 542 1739 0054 313168 9710 829 1244 221 1465 0045 314633 9755 830 1011 199 1210 0038 315843 9793 831 718 214 932 0029 316775 9822 91 1324 318 1642 0052 318417 9874 92 1362 307 1669 0052 320086 9926 93 1146 314 1460 0045 321546 9971 94 652 296 948 bull 0029 322494 10000

148465 174029 322494 10000

41

----------------------------------------------------------------------

-------------------------------------------------------------------- --

------

TABLE 3A Unalakleet River Species Apportionment by Test Period King Salmon 1983

3-Day App Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 76 0272 76 0272

69-612N 28 0100 104 0372

612N-615 461 1652 565 2024

616-619N 419 1502 984 3526

619N-622 170 0609 1154 4135

623-626N 722 2588 1876 6723

626N-629 264 0946 2140 7669

630-73N 103 0639 2243 8038

73N-76 188 0674 2431 8712

77-710N 0 0000 2431 8712

710N-713 0 0000 2431 8712

714-717N 267 0957 2698 9969

717N-720 0 0000 2698 9669

721-724N 92 0331 2790 1 0000

724N-727 0 0000 2790 10000

728-731N 0 0000 2790 1 0000

731N-83 0 0000 2790 1 0000

2790 10000

42

Dates

714-717N

717N-720

721-724N

724N-727

728-731N

731N-83

84-87N

87N-810

811-814N

814N-817

818-821N

821N-824

825-828N

828N-831

91-94

TABLE 3B Unalakleet River Species Apportionment by Test Period Coho Salmon

3-Day Count

583

338

436

550

2650

1174

793

1435

5074

1280

435

2265

171H3

1983

Proportion of Season Total

0000

0000

0000

0343

0199

0256

0323

1558

0690

0466

0843

2983

0752

0256

1331

Cumulative Count

583

921

1357

1907

4557

5731

6524

7959

13033

14313

14748

17013

Cumulative Proportion

0000

0000

0000

0343

0542

0798

1121

2679

3369

3835

4678

7661

8413

8669

10000

43

------------------------------------------------------------------

------------------------------------------------------------------

----- ------

TABLE 3C Unalakleet River Species Apportionment by Test Period Pink Salmon 1983

3-Day P roport ion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 0 0000

6l2N-615 0 0000

616-6l9N 97 0012

6l9N-622 332 0036

623-626N 1245 0136

626N-629 6624 0721

630-73N 3699 0403

73N-76 10762 1171

77-7l0N 7704 0838

710N-7l3 8529 0928

714-717N 9771 1063

717N-720 13845 1507

721-724N 11361 1236

724N-727 6544 0712

728-731N 3545 0386

731N-83 1628 0177

84-87N 1224 0133

87N-810 1777 0193

811-814N 802 0087

814N-817 561 0061

818-821N 533 0058

821N-824 8313 13091

825-828N 468 0051

828N-831 0 0000

91-94 0 0000

91881 10000

0 0000

0 0000

0 0000

97 0012

429 0048

1674 0184

8298 0905

11997 1308

22759 2479

30463 3317

38992 4245

48763 5308

62608 6815

73969 8051

80513 8763

84058 9149

85686 9326

86910 9459

88687 9652

89489 9739

90050 9800

90583 9858

91413 9949

91881 10000

91881 10000

91881 1 0000 44

------------------------------------------------------------------

------------ ------------------------------------------------------

----- ------

TABLE 3D Unalakleet River Species Apportionment by Test Period Chum Salmon 1983

3-Day Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 100 0017

612N-615 268 0046

616-619N 838 0144

619N-622 1180 0202

623-626N 2744 0471

626N-629 1569 0270

630-73N 796 0137

73N-76 2972 0510

77-710N 2068 0355

710N-713 2622 0450

714-717N 4133 0710

717N-720 5596 0960

721-724N 4978 0854

724N-727 8974 1540

728-731N 2241 0385

731N-83 2079 ~0357

84-87N 3009 0516

87N-810 2432 0417

811-814N 937 0161

814N-817 454 0078

818-821N 2584 0443

821N-824 2739 0470

825-828N 1783 0306

828N-831 765 0131

91-94 412 0070

58273 10000 45

0 0000

100 0017

368 0063

1206 0207

2386 0409

5130 0880

6699 1150

7495 1287 f

10467 1797

12535 2152

15157 2602

19290 3312

24886 4272

29864 5216

38838 6666

41079 7051

43158 7408

46167 7924

48559 8341

49536 8502

49990 8580

52574 9023

55313 9493

57096 9799

57861 9930

58273 1 0000

-------------------------------------------------------------

------------------------- ------------------------------------

TABLE 4 Unalakleet River Test Net Proportions by Sample Perio-d 1983 ( Selective CPUE)

Dates Chinook Coho Pink Chum Misc

64-68 105 00 00 895

69-612N 24 00 83 893

612N-615 1C~ 5 00 61 834

616-619N 78 18 156 748

619N-622 23 45 160 772

623-626N 65 112 247 576

626N-629 22 553 131 294

630-73N 16 576 124 284

73N-76 10 572 158 260

77-710N 00 555 149 296

710N-713 00 540 166 294

714-717N 14 00 513 217 256

717N-720 00 00 532 215 253

721-724N 04 00 493 216 287

724N-727 00 18 202 277 503

728-731N 00 23 242 153 582

731N-83 00 30 112 143 715

84-87N 44 98 241 617

87N-810 182 122 167 529

811-814N 139 95 111 655

814N-B17 96 68 55 7B1

B18-B21N 105 39 1B9 667

821N-824 263 43 142 552

825-B28N 145 53 202 600

828N-831 97 00 171 732

91-94 396 00 72 532

46

--------

--------

TABLE 4 Una1ak1et River Test Net Proportions 1983 ( Selective CPUE) (Continued)

Comparative Apportionment

Species Apportionment

Chinook 2790 Coho 17013 Pink 91881 Churn 58273

------shySubtotal 169957

Misc Species 152537 ------shy

Total 322494

Substrate Comparison -------------------shy

Bank Counts -----shy

South 148465 North 174029

------shy

Total 322494

Percent of Total Counts

09 53

285 181

5408

472

1000

Percent

460 540

1000

47

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TABLE 5A Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

May 27 28

21 5 482

13 13

1313

1313 21 5 697

13 13

1313

1313 30 240 0 013 937 0 00 31 246 2 41 1183 2 08

June 1 237 0 00 1420 2 07 2 3

256 585

13 13

013 bull 13 13

1676 2 261

2 2

6bull 13 4

5 6 8

160 120 middot 125

13 1

13 42 130

2 421 2541 2666

~ 2 3 3

bull 13 4 136 136

9 122 0 130 2788 3 05 11 117 00 2905 3 05 12 126 13 00 3031 3 05 13 117 1 43 3148 4 06 15 118 0 013 3266 4 136 16 116 1 43 3382 5 138 18 240 13 130 3622 5 07 19 121 0 00 3743 5 07 20 116 0 00 3859 5 136 22 118 1 42 3977 6 138 23 119 1 42 4196 7 08 25 240 0 013 4336 7 138 26 119 13 1313 4455 7 138 27 119 13 1313 4574 7 138 29 1213 13 130 4694 7 137 313 1213 13 00 4814 7 07

July 2 238 0 1313 51352 7 07 3 118 13 013 51713 7 07 4 118 1 42 5288 8 138 6 122 0 00 5410 8 07 7 116 13 00 5526 8 07

10 126 0 1313 5652 8 07 11 119 0 013 5771 8 07 13 116 13 130 5887 8 07 14 119 2 84 6006 10 07 17 122 0 00 6128 10 07 18 112 0 1313 6240 10 136 20 119 13 00 6359 10 06 21 112 0 013 6471 10 06

6471 10

48

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TABLE 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983

Cum Cum Date Hours Catch CPUE Hours Catch CPUE

July 24 26

115 120 0 00

115 235

0 0

00

00 27 117 4 00 352 0 00 29 117 0 137 469 4 34 31 116 3 103 585 7 48

August 2 122 0 00 706 7 40 3 122 2 66 828 9 43 5 118 1 34 946 10 42 7 128 14 437 1074 24 89 9 257 14 218 1331 38 114

10 125 21 672 1456 59 162 12 13 middot- 0 00 1469 x 59 161 14 10 7 12 449 1576 71 180 16 122 2 66 1698 73 172 17 123 6 196 1821 79 174 19 118 1 34 1939 80 165 21 112 6 214 2051 86 168 23 120 3 100 217 1 89 164 24 115 2 70 2286 91 159 26 115 5 174 2401 96 160 28 119 0 00 2520 96 152 30 119 4 1 34 2639 100 152 31 117 1 34 2756 101 147

Sept 2 123 5 33 2879 106 147 4 479 15 125 3358 121 144 6 238 11 185 3596 132 147 7 237 5 84 3833 137 143 8 238 6 1 01 4071 143 141 9 242 10 1 65 4313 153 142

10 242 3 50 4555 156 137 11 242 2 33 4797 158 132 12 241 8 133 5038 166 132 14 227 14 247 5265 180 137 15 242 9 149 5507 189 137 16 210 3 57 5717 192 134 17 239 2 33 5956 194 130 18 230 2 35 6186 196 127 20 489 4 33 6675 200 120 21 24 3 50 6915 203 117 22 242 0 00 7157 203 113 23 234 1 17 7391 204 110

----shy

7391 204

Mesh size = 5 14 from 724 to 810

49

------------------------------------------------------------------

TABLE 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE ------~-----------------------------------------------------------June 16 122 1 33 122 1 33

17 118 0 bull 0 0 240 1 17 20 120 2 67 360 3 33 21 118 0 00 478 3 25 23 119 2 67 597 5 34 24 119 3 102 716 8 45 27 116 19 655 832 27 130 28 120 22 733 952 49 206 30 120 40 1333 1072 89 332

July 1 115 36 1252 1187 125 421 4 122 30 983 1309 155 474 5 114 47 1649 1423 202 568 7 118 30 1016 1541 232 602 8 120 shy 24 800 1661 -$ 256 616

11 122 42 1377 1783 298 669 12 120 29 967 1903 327 687 14 116 37 1276 2019 364 721 15 118 40 1356 2137 404 756 18 121 60 1976 2258 464 822 19 119 30 740 2377 494 831 21 125 61 1952 2502 555 887 22 118 25 847 2627 580 883 25 122 16 525 2749 596 867 26 116 15 517 2865 611 853 28 122 28 918 2987 639 856 29 117 11 376 3104 650 838

August 1 120 7 233 3224 657 815 2 119 9 303 3345 666 796 4 120 3 100 3465 669 772 5 118 5 170 3583 674 752 8 114 7 245 3697 681 734

11 123 7 337 3 82 0 688 720 15 118 2 68 3938 690 701 16 113 5 177 4051 695 686 18 98 3 122 4149 698 673 19 119 1 34 4268 699 655 22 112 0 00 4380 699 638 23 115 0 00 4495 699 622 25 120 2 66 4615 701 606 26 112 1 36 4727 702 594 29 116 0 00 4843 702 580 30 11 5 0 00 4958 702 566

Sept 1 115 0 00 5079 702 553 2 112 0 00 5191 702 541

----shy5079 702

50

-----------------------------------------------------------------

------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

June 5 73 0 00 73 0 00 7 126 0 00 199 0 00 8 127 0 00 326 0 bull 0 0

10 11 4 3 105 440 3 27 12 113 2 71 553 5 36 14 119 1 34 672 6 36 15 116 4 138 788 10 51 17 116 3 103 904 13 56 19 118 6 203 1022 19 74 21 118 0 00 1140 19 67 22 117 10 342 1257 29 92 24 116 3 103 1373 32 93 26 119 11 370 1492 43 115 28 11 8 6 203 1610 $ 49 122 29 115 13 452 1725 62 144

July 1 119 8 269 1844 70 152 3 119 17 571 1963 87 177 5 119 13 437 2082 100 192 6 12 0 17 567 2202 117 213 8 121 7 231 2323 124 214

10 11 4 18 632 2437 142 233 12 115 12 417 2552 154 241 13 116 37 1276 2668 191 286 15 117 16 547 2785 207 297 17 11 8 31 1051 290 3 238 328 19 118 18 610 3021 256 339 20 115 29 1009 3136 285 364 22 122 17 557 3258 302 371 24 115 24 835 3373 326 387 26 120 19 633 3493 345 395 27 117 11 376 3610 356 394 29 117 14 479 3727 370 397 31 116 18 621 3843 388 404

August 2 121 9 298 3964 397 401 3 122 17 557 4086 414 405 5 11 8 8 271 4204 422 402 7 128 19 594 4332 441 407 9 257 10 156 4589 451 393

10 125 14 448 4714 464 394 12 13 1 308 4727 465 393 14 107 5 187 4834 470 389 16 122 4 131 4956 474 383 17 123 15 488 5079 489 385 19 118 8 271 5197 497 383 21 112 3 107 5309 500 378 23 120 6 200 5429 506 373 24 115 7 243 5544 513 370

51

-----------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 (Continued)

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

August 26 115 5 174 5657 518 366 28 119 1 34 577 6 519 359 30 119 4 134 5895 523 355 31 117 0 00 6012 523 3 48

Sept 2 123 3 98 613 5 526 343 4 479 2 17 6614 528 319 6 238 1 17 6852 529 309 7 237 0 00 7089 529 298 8 9

238 242

1 2

17

33 7327 7569

clt

530 532

289 281

10 242 3 50 7811 535 274 11 242 0 00 8053 535 266 12 241 2 33 8294 537 259 14 227 3 53 8521 540 253 15 242 0 00 8763 540 246 16 210 1 19 8973 541 241 17 239 2 33 9212 543 236 18 230 0 00 9442 543 230 20 489 0 00 9931 543 219 21 240 2 33 10171 545 214 22 242 0 0 10413 545 209 23 234 0 00 10647 545 205

----shy

10647 545

52

------------------------------------------------------------------------

------

TABLE 6A Unalakleet River Sonar Site Drift Sets5 1 4n Me sh 19 83 bull

Date Time Result

July 19 1405-1413 1 burbot July 23 1040-1055 1 pink caracass July 27 1520-1530 1 coho August 3 1444-1501 4 coho August 22 1930-1937 0 August 23 937-943 1 coho 1 pink carcass August 26 1117-1127 1 coho 3 churn August 31 1018-1034 3 churn

TABLE 6B Unalakleet River Sonar Site Beach Seines 1983

Date Time Distance Result

July 20 1445 120 meters 4 pink 1 churn 13 Dolly Varden 1 whitefish

July 25 1500 120 meters 6 pink 1 churn 1 Dolly Varden 4 whitefish 1 grayling

July 28 1700 120 meters 4 coho 2 pink 2 churn 1 Dolly Varden

August 1 2010 300 meters 4 pink 3 churn 8 Dolly Varden

August 4 1015 130 meters 5 coho 3 pink 3 churn 65 Dolly Varden 3 whitefish 3 grayling

August 24 1110 130 meters 18 coho 2 Dolly Varden 2 grayling

August 29 1715 120 meters 11 coho 1 pink 69 churn 1 Dolly Varden 2 grayling

Seine done at mile 12 Unalakleet River

53

--------------------------------------------------------------------------------------------------

--------------------------------------------------------------------------------------------------

TABLE 7 AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER CATCH SAMPLE SPORT CATCH AND SPAWNING SURVEYS 1983

II

COMBINED 3-2 4-2 4-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 31 646 6702 5 104 5010 8 167 5688 1 21 5900

Female 17 354 8540 o o 1 21 5450 o o

Total 48 1000 7353 5 104 5010 9 188 5661 1 21 5900

~ 11)

5-2 6-2 7-2 7-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 11 229 7382 6 125 8350 0 0 0 0

Female 2 42 7925 12 250 8742 1 21 10650 1 21 8350

Total 13 271 7465 18 375 8611 1 21 10650 1 21 8350

TABLE 8A AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER TEST NET SAMPLE 1983

-----~-------------------------------------------------------------------------------------------------------

gt

COMBINED 4-2 5-2 5-3 6-2 7-2 NO LENGIH NO LENGIH NO LENGIH NO LENGTH NO LENGTH NO LENGTr

8 14 n

Male 3 333 8107 0 1 111 5800 o 0 2 222 9260 0 0 Female 6 667 8295 0 0 1 111 7600 o o 4 444 8310 1 111 8930 Total 9 10 e 0 8232 0 o 2 222 6700 o o 6 667 8627 1 111 8930

If) If)

5 14 Male 19 1000 6298 12 632 5392 4 211 6990 0 o 3 158 8997 0 0 Female o 0 o o o o o o 0 0 0 0 Total 19 1000 6298 12 632 5392 4 211 6990 o o 3 158 8997 0 0

4 n or Smaller Male 6 667 5930 1 111 4660 2 222 6325 3 333 6090 0 o 0 o Female 3 333 8970 o o o o o o 3 333 8970 0 o Total 9 1000 6943 1 111 466 2 222 6325 3 33 3 6090 3 33 3 8970 0 0

TOTAL Hale 28 757 6413 13 351 5336 7 189 6630 3 8 1 6090 5 13 5 9102 o 0 Female 9 243 852 o o 1 27 7600 o o 7 189 8593 1 2 7 8930 Total 37 1000 6925 13 351 5336 8 216 6751 3 8 1 6090 12 324 88 e 5 1 2 7 8930

---------------------------------------------------------------------------------------------------------

---------------------------------------------------------------------------------------------------------

TABLE 8B AGE SEX AND SIZE COMPOSITION OF NORTON SOUND COHO SALMON UNALAKLEET RIVER TEST NET SAMPLE 5 14 AND 5 78 GEAR 1983

COMBINED 3-2 4-3 4-4 5-4 NO LENGIH NO LENGIH NO LENGTH NO LENGIH NO LENGTH

Male 9 900 5489 0 0 9 900 5489 0 0 Female 1 10 bull 0 552 QJ QJ 0 1 10QJ 5520 0 0 Total 10 1000 5492 0 0 10 1000 5492 0 0 725-731

bull LI)Male 15 938 5645 15 938 5645 Female 1 62 575 QJ 1 62 575 QJ Total 16 lQJ0QJ 5651 16 100QJ 5651 81-87

Male 24 545 5668 23 523 5768 1 23 3350 Female 20 455 5631 20 455 5631 0 0 Total 441QJ0QJ 5651 43 977 57 QJ 4 1 23 335 QJ 88-814

Male 7 500 5797 7 500 5797 QJ 0 Female 7 500 5596 6 429 5587 1 71 5650 Total 14 1000 5696 13 929 1 71 5650570 815-821

Male 5 455 5492 5 455 5492 Female 6 545 5552 6 545 5552 Total 11 lQJ00 5525 11 100QJ 5525 822-828

Figure 40 Species apportionment chum salmon Unalakleet sonar 1983

16

1 5

1 4

13

1 2

1 1

10

9 c 8GI U

GI middot7 A

6

5

4

3

2

1

~

o N

~

1 5 10 15 20 25 30 5 10 15 20 25 3 1 5 10 15 20 25 31 5 10

June Ju Iy August Sept e

Figure 5 Specie apportionment Unalakleet sonar 1983

50

4

40

35

c J 30 0 U

~ 0 25 0 c Q)

u ~

Q) 20a

15

10

5

o L-_lt---__

King Coho Pink Chum Misc

21

----

Figure 6 Sector distribution of counts Unalakleet sonar1983

35

30

25

c 20 G)

() G) 15

0

10

5

35

30

25 c G)

() 20

G)

0 15

10

5

( s ()u t h ban k )

July 3-5

~-2 4 6 8 1 0 1 2 1 4 1 6shy

Sector

August 21-23

2 4 6 8 10 12 14 16

Sector

22

Figure 7 Hourly distribution of counts Unalakleet sonar 1983

(south bank)

14

12

10

c 8 GI U ~

6

July 3-5

~GI

I =~ Q

4

2 0

2 4 6 8 10 12 14 1 6 18 20 22 24

TIme

9

8

7

6

5 c GI U ~ 4 GI

Q

3

2

August 21-23

1

0

2 4 6 8 10 12 14

TIme

16

23

18 20 22 24

Figure 8 Unalakleet River Test Fishing Daily King CPUE in 8 14 mesh 1983

10

9 N

8 shy

7 I 0 c 6E

n

l J I I

0 0 5 c (J 4 co 0

3

2

1

I I

27 1 5 10 15 20 25 1 5 10 15 20 25 31

~ June July

Figure 9 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1983bull

~

middot10

09 U N

I 08 0 c 07E I ()

- 06 E-0 0 05 shy~ () 04 ca - ()

03E I 0 02

01

27 1 5 10 15 2Q 25 1 5 10 15 20 25 31

June July

Figure 10 Unalakleet River Test Fishing Daily Coho CPUE in 5 78 mesh 1983

1

6

5

I 0

NI II I 0 t

E 4

0 0 c 3() cu 0

2

1

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sept U

Figure 11 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1983

200

175

150

I 0 c 125E I ()

E

r-shy-0 I I N 0 100 c ()-as ()

75E I 0

50

25

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sel ber

20

Figure 12 Unalakleet River Test Fishing Daily Pink CPUE in 4 mesh 1983

18

I

0) N

II

16

I ishy

14 J 0 t 12shyE 0 10 0 shys 8 () as

0 6 1 I V 4

2

~ I

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

--

Figure 13 Unalakleet River Test Fishing Cumulat ive Pink CPUE in 4 mesh 1983

10

9 01 N 8

J 0 J 7 E J 0 6 E- 50 ~

amp 4() ca

0 3 E J

0 2

1

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

Figure 14 Unalakleet River Test Fishing Daily CPUE in 5 14 amp 5 78 mesh 1983

14

13shy

12

11

10

9 J 0 8

I z shy-E 7 0 0 shys ~u aI 0

4 I

31

2

1

II

0 C1)I 11

I I I II

bull y AA(net changed to 5 78

AA A 11 I

~ I~ V ~

- I

VI

1 5 10 15 20- 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

cJune July August

Figure 15 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 14 amp 5 78 mesh 1983

It

5

--l C)

net changed to 5 78

~ 4 o

c E (J ~

3E o o c 2 u ~ -(J

E ~ (J 1

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 16 Unalakleet River Test Fishing Catch Proportions 1983

60

55

---- King50

__ Coho 45

P--Q Pink

40 __ Chum

I LU 35J D I 0

30 ICQ 0 25 I

N Cl0 20

c G)

15u G)

D

10

5 A 1 I

I 4 I

I I

3 lt

~

2

I I1 - I bull I

I ~ ~ ~ t -J ~~ - _

r

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 17 Unalakleet Area Temperatures 1983

18

16

14

12

til 10I

u-G) 80 CI) G) G) 6 C) G)

Q 4

2

C) C)

__ Air

0--0 River 2

0

-2

-4

---------~ ~

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August 5e

4

Figure 18 Unalakleet River Turbidity and Depth 1983

__ Secchi Reading

-t ()

II) G)-G)

3

iE 2

1

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August

~ 1 _ ~ r--- I shy I __ I 01 --shy

Figure 19 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1981-83

27 31 5

May

_1981

____ 1982

o 0 1983 11) C)

Changed to 5 78 mesh

I

t

~-~o-~ Q-O--Oolt)-(IQ-----l

--1

_10 15 20 25 30 5 10 15 20 25 31

June July

I I I

~

0 ~

r E ~

CJ shyE 0 0 I

shyr u-cu CJ

E ~

CJ

4

35

30

25

20

15

10

05

Figure 20 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 78 mesh 1981-83

5

4 lI 0

z

E lI 0 3 E-0 0 2 r CJ-cu 0

E lI 1 0

__1981 ~~

~ ___1982

a 01983 5 148 mesh from 65-810

_----shy-- 0 - -- C1) A - _ - ~

~ I

I

II I I I I I

I I

1

~ -

-

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 21 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 mesh- 1981-83

8

70

60

50

40 0

r 30E

0 20E-0 0 10 s= u 8 tV 0 6E 0 4

2

__1981 ____ 1982

_1983

shy--- -- shy--- shy J - -

I

I

C1- J

I

-----l---l ~--~r---------------r--

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 22 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1981-83

_1981

~ __ 1982

~1983

25

00I _ __ _ _ C)~ I __ _ I

I V o 20 rt I I

E I AshyI o E 15-o o z u 10 tU o E I o 5

I

1 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

July August 5

----------------------------------------------------------------

Table 1 Unalakleet River Subsistence King Salmon Index 1983

Number of Number of Date Fishermen Chinook Average

08 02 18 05 05 00 02 58 92 62 72 72 42 28 52 60 62 20 47 50 35 25 15

June 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Totals

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 4 4 4

4

3 1 7 2 2 o 1

23 37 25 29 29 17 11 21 24 25

6 14 15 14 H~

6

322

~

39

---------------------- ---------- --------------------------------------

----------------------------------------------------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983

Daily Proportion Cumu1 Prop Date South North Total of Total Cumulative of Total

64 7 23 30 1313131 313 013131 65 44 187 231 00137 261 01308 66 12 162 174 01305 435 01313 67 8 283 291 1313139 726 01322 68 0000 726 13022 69 3 221 224 013137 950 13029 610 26 245 271 131308 1221 13037 611 56 254 310 131310 1531 131347 612 44 736 780 013 24 2311 13071 613 64 1188 1252 01339 3563 01113 614 59 1752 1811 0056 5374 0166 615 97 844 941 01329 6315 0195 616 165 729 894 0028 7209 0223 617 151 i 604 1755 0054 8964 middot 0277 618 i ll 1524 1635 0051 10599 13328 619 175 2000 2175 0067 12774 13395 620 171 21320 2191 0068 14965 0463 621 220 1613 1833 0057 16798 0520 622 199 2065 2264 0070 19062 0590 623 362 21334 2396 0074 21458 13664 624 876 3403 4279 13133 25737 0797 625 1244 2023 3267- 0101 29004 0898 626 738 1601 2339 0073 31343 0971 627 573 3265 3838 0119 35181 1090 628 547 1868 2415 0075 37596 1165 629 528 4028 4556 0141 42152 1306 630 430 430 0013 42582 1319 71 240 240 01307 42822 1326 72 201 975 1176 0036 43998 1362 73 309 8842 9151 0284 53149 1646 74 475 6385 6860 0213 60009 1859 75 565 3342 3907 0121 63916 1980 76 1377 2094 3471 0108 67387 2088 77 1416 3173 4589 0142 71976 2230 78 1472 1420 2892 0090 74868 2320 79 2071 1452 3523 01113 78391 2430 710 3318 2434 5752 0178 84143 2608 711 2673 2866 5539 13172 89682 2780 712 1665 1747 3412 13106 93094 2886 713 21317 1951 3968 13123 97062 3009 714 2991 2664 5655 0175 102717 3184 715 2646 2548 5194 13161 107911 3345 716 2488 2886 5374 0167 113285 3512 717 1585 4063 5648 0175 118933 3687 718 3559 9326 12885 0400 131818 4087 719 2948 2398 5346 13166 137164 4253 720 1640 3330 4970 0154 142134 4407 721 2416 6420 8836 0274 150970 4681 722 3298 3298 0102 154268 4783 723 5007 5007 0155 159275 4938

40

--------------------------------------------------------------------

--------------------------------------------------------------------

-----------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983 (Continued)

Daily Proportion Cum Prop Date South North Total of Total Cumu1at i ve of Total

724 4005 7804 11809 0366 171084 5304 725 2453 3392 5845 0181 176929 5485 726 2166 12094 14260 0442 191189 5927 727 1914 4472 6386 0198 197575 6125 728 1603 3463 5066 0157 202641 6282 729 1251 1914 3165 0098 205806 6380 730 1710 2495 4205 en30 210011 6510 731 2542 1887 4429 0137 214440 6647 81 4479 2271 6750 0209 221190 6856 82 1103 1806 2909 0091 224099 6947 83 1719 942 2661 0083 226760 bull 7030 84 1519 2557 4076 0126 230836 7156 85 1259 1113 2372 0074 233208 7230 86 940 2189 3129 0097 236337 7327 87 1467 4354 5821 0180 242158 7507 88 2318 1584 3902 0121 246060 7628 89 2098 1505 3603 0112 249663 7740 810 2629 1517 4146 bull 0129 253809 7869 811 3753 1091 4844 0150 258653 8019 812 1489 523 2012 0062 260665 8081 813 744 353 1097 0034 261762 8386 814 981 981 bull 0030 262743 8145 815 2324 2324 0072 265067 8217 816 2638 2638 0082 267705 8299 817 2073 731 2804 0087 270509 8115 818 2244 675 2919 0091 273428 8477 819 3240 696 3936 0122 277364 8599 820 2363 503 2866 0089 280230 8688 821 6789 1111 7900 0245 288130 8933 822 6489 563 7052 0219 295182 9152 823 5077 298 5375 0167 300557 9319 824 2616 298 2914 0090 303471 9409 825 3933 412 4345 0135 307816 9544 826 1393 554 1947 0060 309763 9604 827 1203 463 1666 0052 311429 9656 828 1197 542 1739 0054 313168 9710 829 1244 221 1465 0045 314633 9755 830 1011 199 1210 0038 315843 9793 831 718 214 932 0029 316775 9822 91 1324 318 1642 0052 318417 9874 92 1362 307 1669 0052 320086 9926 93 1146 314 1460 0045 321546 9971 94 652 296 948 bull 0029 322494 10000

148465 174029 322494 10000

41

----------------------------------------------------------------------

-------------------------------------------------------------------- --

------

TABLE 3A Unalakleet River Species Apportionment by Test Period King Salmon 1983

3-Day App Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 76 0272 76 0272

69-612N 28 0100 104 0372

612N-615 461 1652 565 2024

616-619N 419 1502 984 3526

619N-622 170 0609 1154 4135

623-626N 722 2588 1876 6723

626N-629 264 0946 2140 7669

630-73N 103 0639 2243 8038

73N-76 188 0674 2431 8712

77-710N 0 0000 2431 8712

710N-713 0 0000 2431 8712

714-717N 267 0957 2698 9969

717N-720 0 0000 2698 9669

721-724N 92 0331 2790 1 0000

724N-727 0 0000 2790 10000

728-731N 0 0000 2790 1 0000

731N-83 0 0000 2790 1 0000

2790 10000

42

Dates

714-717N

717N-720

721-724N

724N-727

728-731N

731N-83

84-87N

87N-810

811-814N

814N-817

818-821N

821N-824

825-828N

828N-831

91-94

TABLE 3B Unalakleet River Species Apportionment by Test Period Coho Salmon

3-Day Count

583

338

436

550

2650

1174

793

1435

5074

1280

435

2265

171H3

1983

Proportion of Season Total

0000

0000

0000

0343

0199

0256

0323

1558

0690

0466

0843

2983

0752

0256

1331

Cumulative Count

583

921

1357

1907

4557

5731

6524

7959

13033

14313

14748

17013

Cumulative Proportion

0000

0000

0000

0343

0542

0798

1121

2679

3369

3835

4678

7661

8413

8669

10000

43

------------------------------------------------------------------

------------------------------------------------------------------

----- ------

TABLE 3C Unalakleet River Species Apportionment by Test Period Pink Salmon 1983

3-Day P roport ion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 0 0000

6l2N-615 0 0000

616-6l9N 97 0012

6l9N-622 332 0036

623-626N 1245 0136

626N-629 6624 0721

630-73N 3699 0403

73N-76 10762 1171

77-7l0N 7704 0838

710N-7l3 8529 0928

714-717N 9771 1063

717N-720 13845 1507

721-724N 11361 1236

724N-727 6544 0712

728-731N 3545 0386

731N-83 1628 0177

84-87N 1224 0133

87N-810 1777 0193

811-814N 802 0087

814N-817 561 0061

818-821N 533 0058

821N-824 8313 13091

825-828N 468 0051

828N-831 0 0000

91-94 0 0000

91881 10000

0 0000

0 0000

0 0000

97 0012

429 0048

1674 0184

8298 0905

11997 1308

22759 2479

30463 3317

38992 4245

48763 5308

62608 6815

73969 8051

80513 8763

84058 9149

85686 9326

86910 9459

88687 9652

89489 9739

90050 9800

90583 9858

91413 9949

91881 10000

91881 10000

91881 1 0000 44

------------------------------------------------------------------

------------ ------------------------------------------------------

----- ------

TABLE 3D Unalakleet River Species Apportionment by Test Period Chum Salmon 1983

3-Day Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 100 0017

612N-615 268 0046

616-619N 838 0144

619N-622 1180 0202

623-626N 2744 0471

626N-629 1569 0270

630-73N 796 0137

73N-76 2972 0510

77-710N 2068 0355

710N-713 2622 0450

714-717N 4133 0710

717N-720 5596 0960

721-724N 4978 0854

724N-727 8974 1540

728-731N 2241 0385

731N-83 2079 ~0357

84-87N 3009 0516

87N-810 2432 0417

811-814N 937 0161

814N-817 454 0078

818-821N 2584 0443

821N-824 2739 0470

825-828N 1783 0306

828N-831 765 0131

91-94 412 0070

58273 10000 45

0 0000

100 0017

368 0063

1206 0207

2386 0409

5130 0880

6699 1150

7495 1287 f

10467 1797

12535 2152

15157 2602

19290 3312

24886 4272

29864 5216

38838 6666

41079 7051

43158 7408

46167 7924

48559 8341

49536 8502

49990 8580

52574 9023

55313 9493

57096 9799

57861 9930

58273 1 0000

-------------------------------------------------------------

------------------------- ------------------------------------

TABLE 4 Unalakleet River Test Net Proportions by Sample Perio-d 1983 ( Selective CPUE)

Dates Chinook Coho Pink Chum Misc

64-68 105 00 00 895

69-612N 24 00 83 893

612N-615 1C~ 5 00 61 834

616-619N 78 18 156 748

619N-622 23 45 160 772

623-626N 65 112 247 576

626N-629 22 553 131 294

630-73N 16 576 124 284

73N-76 10 572 158 260

77-710N 00 555 149 296

710N-713 00 540 166 294

714-717N 14 00 513 217 256

717N-720 00 00 532 215 253

721-724N 04 00 493 216 287

724N-727 00 18 202 277 503

728-731N 00 23 242 153 582

731N-83 00 30 112 143 715

84-87N 44 98 241 617

87N-810 182 122 167 529

811-814N 139 95 111 655

814N-B17 96 68 55 7B1

B18-B21N 105 39 1B9 667

821N-824 263 43 142 552

825-B28N 145 53 202 600

828N-831 97 00 171 732

91-94 396 00 72 532

46

--------

--------

TABLE 4 Una1ak1et River Test Net Proportions 1983 ( Selective CPUE) (Continued)

Comparative Apportionment

Species Apportionment

Chinook 2790 Coho 17013 Pink 91881 Churn 58273

------shySubtotal 169957

Misc Species 152537 ------shy

Total 322494

Substrate Comparison -------------------shy

Bank Counts -----shy

South 148465 North 174029

------shy

Total 322494

Percent of Total Counts

09 53

285 181

5408

472

1000

Percent

460 540

1000

47

-------------------------------------------------------------------

TABLE 5A Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

May 27 28

21 5 482

13 13

1313

1313 21 5 697

13 13

1313

1313 30 240 0 013 937 0 00 31 246 2 41 1183 2 08

June 1 237 0 00 1420 2 07 2 3

256 585

13 13

013 bull 13 13

1676 2 261

2 2

6bull 13 4

5 6 8

160 120 middot 125

13 1

13 42 130

2 421 2541 2666

~ 2 3 3

bull 13 4 136 136

9 122 0 130 2788 3 05 11 117 00 2905 3 05 12 126 13 00 3031 3 05 13 117 1 43 3148 4 06 15 118 0 013 3266 4 136 16 116 1 43 3382 5 138 18 240 13 130 3622 5 07 19 121 0 00 3743 5 07 20 116 0 00 3859 5 136 22 118 1 42 3977 6 138 23 119 1 42 4196 7 08 25 240 0 013 4336 7 138 26 119 13 1313 4455 7 138 27 119 13 1313 4574 7 138 29 1213 13 130 4694 7 137 313 1213 13 00 4814 7 07

July 2 238 0 1313 51352 7 07 3 118 13 013 51713 7 07 4 118 1 42 5288 8 138 6 122 0 00 5410 8 07 7 116 13 00 5526 8 07

10 126 0 1313 5652 8 07 11 119 0 013 5771 8 07 13 116 13 130 5887 8 07 14 119 2 84 6006 10 07 17 122 0 00 6128 10 07 18 112 0 1313 6240 10 136 20 119 13 00 6359 10 06 21 112 0 013 6471 10 06

6471 10

48

------------------------------------------------------------------

------------------------------------------------------------------

TABLE 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983

Cum Cum Date Hours Catch CPUE Hours Catch CPUE

July 24 26

115 120 0 00

115 235

0 0

00

00 27 117 4 00 352 0 00 29 117 0 137 469 4 34 31 116 3 103 585 7 48

August 2 122 0 00 706 7 40 3 122 2 66 828 9 43 5 118 1 34 946 10 42 7 128 14 437 1074 24 89 9 257 14 218 1331 38 114

10 125 21 672 1456 59 162 12 13 middot- 0 00 1469 x 59 161 14 10 7 12 449 1576 71 180 16 122 2 66 1698 73 172 17 123 6 196 1821 79 174 19 118 1 34 1939 80 165 21 112 6 214 2051 86 168 23 120 3 100 217 1 89 164 24 115 2 70 2286 91 159 26 115 5 174 2401 96 160 28 119 0 00 2520 96 152 30 119 4 1 34 2639 100 152 31 117 1 34 2756 101 147

Sept 2 123 5 33 2879 106 147 4 479 15 125 3358 121 144 6 238 11 185 3596 132 147 7 237 5 84 3833 137 143 8 238 6 1 01 4071 143 141 9 242 10 1 65 4313 153 142

10 242 3 50 4555 156 137 11 242 2 33 4797 158 132 12 241 8 133 5038 166 132 14 227 14 247 5265 180 137 15 242 9 149 5507 189 137 16 210 3 57 5717 192 134 17 239 2 33 5956 194 130 18 230 2 35 6186 196 127 20 489 4 33 6675 200 120 21 24 3 50 6915 203 117 22 242 0 00 7157 203 113 23 234 1 17 7391 204 110

----shy

7391 204

Mesh size = 5 14 from 724 to 810

49

------------------------------------------------------------------

TABLE 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE ------~-----------------------------------------------------------June 16 122 1 33 122 1 33

17 118 0 bull 0 0 240 1 17 20 120 2 67 360 3 33 21 118 0 00 478 3 25 23 119 2 67 597 5 34 24 119 3 102 716 8 45 27 116 19 655 832 27 130 28 120 22 733 952 49 206 30 120 40 1333 1072 89 332

July 1 115 36 1252 1187 125 421 4 122 30 983 1309 155 474 5 114 47 1649 1423 202 568 7 118 30 1016 1541 232 602 8 120 shy 24 800 1661 -$ 256 616

11 122 42 1377 1783 298 669 12 120 29 967 1903 327 687 14 116 37 1276 2019 364 721 15 118 40 1356 2137 404 756 18 121 60 1976 2258 464 822 19 119 30 740 2377 494 831 21 125 61 1952 2502 555 887 22 118 25 847 2627 580 883 25 122 16 525 2749 596 867 26 116 15 517 2865 611 853 28 122 28 918 2987 639 856 29 117 11 376 3104 650 838

August 1 120 7 233 3224 657 815 2 119 9 303 3345 666 796 4 120 3 100 3465 669 772 5 118 5 170 3583 674 752 8 114 7 245 3697 681 734

11 123 7 337 3 82 0 688 720 15 118 2 68 3938 690 701 16 113 5 177 4051 695 686 18 98 3 122 4149 698 673 19 119 1 34 4268 699 655 22 112 0 00 4380 699 638 23 115 0 00 4495 699 622 25 120 2 66 4615 701 606 26 112 1 36 4727 702 594 29 116 0 00 4843 702 580 30 11 5 0 00 4958 702 566

Sept 1 115 0 00 5079 702 553 2 112 0 00 5191 702 541

----shy5079 702

50

-----------------------------------------------------------------

------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

June 5 73 0 00 73 0 00 7 126 0 00 199 0 00 8 127 0 00 326 0 bull 0 0

10 11 4 3 105 440 3 27 12 113 2 71 553 5 36 14 119 1 34 672 6 36 15 116 4 138 788 10 51 17 116 3 103 904 13 56 19 118 6 203 1022 19 74 21 118 0 00 1140 19 67 22 117 10 342 1257 29 92 24 116 3 103 1373 32 93 26 119 11 370 1492 43 115 28 11 8 6 203 1610 $ 49 122 29 115 13 452 1725 62 144

July 1 119 8 269 1844 70 152 3 119 17 571 1963 87 177 5 119 13 437 2082 100 192 6 12 0 17 567 2202 117 213 8 121 7 231 2323 124 214

10 11 4 18 632 2437 142 233 12 115 12 417 2552 154 241 13 116 37 1276 2668 191 286 15 117 16 547 2785 207 297 17 11 8 31 1051 290 3 238 328 19 118 18 610 3021 256 339 20 115 29 1009 3136 285 364 22 122 17 557 3258 302 371 24 115 24 835 3373 326 387 26 120 19 633 3493 345 395 27 117 11 376 3610 356 394 29 117 14 479 3727 370 397 31 116 18 621 3843 388 404

August 2 121 9 298 3964 397 401 3 122 17 557 4086 414 405 5 11 8 8 271 4204 422 402 7 128 19 594 4332 441 407 9 257 10 156 4589 451 393

10 125 14 448 4714 464 394 12 13 1 308 4727 465 393 14 107 5 187 4834 470 389 16 122 4 131 4956 474 383 17 123 15 488 5079 489 385 19 118 8 271 5197 497 383 21 112 3 107 5309 500 378 23 120 6 200 5429 506 373 24 115 7 243 5544 513 370

51

-----------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 (Continued)

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

August 26 115 5 174 5657 518 366 28 119 1 34 577 6 519 359 30 119 4 134 5895 523 355 31 117 0 00 6012 523 3 48

Sept 2 123 3 98 613 5 526 343 4 479 2 17 6614 528 319 6 238 1 17 6852 529 309 7 237 0 00 7089 529 298 8 9

238 242

1 2

17

33 7327 7569

clt

530 532

289 281

10 242 3 50 7811 535 274 11 242 0 00 8053 535 266 12 241 2 33 8294 537 259 14 227 3 53 8521 540 253 15 242 0 00 8763 540 246 16 210 1 19 8973 541 241 17 239 2 33 9212 543 236 18 230 0 00 9442 543 230 20 489 0 00 9931 543 219 21 240 2 33 10171 545 214 22 242 0 0 10413 545 209 23 234 0 00 10647 545 205

----shy

10647 545

52

------------------------------------------------------------------------

------

TABLE 6A Unalakleet River Sonar Site Drift Sets5 1 4n Me sh 19 83 bull

Date Time Result

July 19 1405-1413 1 burbot July 23 1040-1055 1 pink caracass July 27 1520-1530 1 coho August 3 1444-1501 4 coho August 22 1930-1937 0 August 23 937-943 1 coho 1 pink carcass August 26 1117-1127 1 coho 3 churn August 31 1018-1034 3 churn

TABLE 6B Unalakleet River Sonar Site Beach Seines 1983

Date Time Distance Result

July 20 1445 120 meters 4 pink 1 churn 13 Dolly Varden 1 whitefish

July 25 1500 120 meters 6 pink 1 churn 1 Dolly Varden 4 whitefish 1 grayling

July 28 1700 120 meters 4 coho 2 pink 2 churn 1 Dolly Varden

August 1 2010 300 meters 4 pink 3 churn 8 Dolly Varden

August 4 1015 130 meters 5 coho 3 pink 3 churn 65 Dolly Varden 3 whitefish 3 grayling

August 24 1110 130 meters 18 coho 2 Dolly Varden 2 grayling

August 29 1715 120 meters 11 coho 1 pink 69 churn 1 Dolly Varden 2 grayling

Seine done at mile 12 Unalakleet River

53

--------------------------------------------------------------------------------------------------

--------------------------------------------------------------------------------------------------

TABLE 7 AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER CATCH SAMPLE SPORT CATCH AND SPAWNING SURVEYS 1983

II

COMBINED 3-2 4-2 4-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 31 646 6702 5 104 5010 8 167 5688 1 21 5900

Female 17 354 8540 o o 1 21 5450 o o

Total 48 1000 7353 5 104 5010 9 188 5661 1 21 5900

~ 11)

5-2 6-2 7-2 7-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 11 229 7382 6 125 8350 0 0 0 0

Female 2 42 7925 12 250 8742 1 21 10650 1 21 8350

Total 13 271 7465 18 375 8611 1 21 10650 1 21 8350

TABLE 8A AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER TEST NET SAMPLE 1983

-----~-------------------------------------------------------------------------------------------------------

gt

COMBINED 4-2 5-2 5-3 6-2 7-2 NO LENGIH NO LENGIH NO LENGIH NO LENGTH NO LENGTH NO LENGTr

8 14 n

Male 3 333 8107 0 1 111 5800 o 0 2 222 9260 0 0 Female 6 667 8295 0 0 1 111 7600 o o 4 444 8310 1 111 8930 Total 9 10 e 0 8232 0 o 2 222 6700 o o 6 667 8627 1 111 8930

If) If)

5 14 Male 19 1000 6298 12 632 5392 4 211 6990 0 o 3 158 8997 0 0 Female o 0 o o o o o o 0 0 0 0 Total 19 1000 6298 12 632 5392 4 211 6990 o o 3 158 8997 0 0

4 n or Smaller Male 6 667 5930 1 111 4660 2 222 6325 3 333 6090 0 o 0 o Female 3 333 8970 o o o o o o 3 333 8970 0 o Total 9 1000 6943 1 111 466 2 222 6325 3 33 3 6090 3 33 3 8970 0 0

TOTAL Hale 28 757 6413 13 351 5336 7 189 6630 3 8 1 6090 5 13 5 9102 o 0 Female 9 243 852 o o 1 27 7600 o o 7 189 8593 1 2 7 8930 Total 37 1000 6925 13 351 5336 8 216 6751 3 8 1 6090 12 324 88 e 5 1 2 7 8930

---------------------------------------------------------------------------------------------------------

---------------------------------------------------------------------------------------------------------

TABLE 8B AGE SEX AND SIZE COMPOSITION OF NORTON SOUND COHO SALMON UNALAKLEET RIVER TEST NET SAMPLE 5 14 AND 5 78 GEAR 1983

COMBINED 3-2 4-3 4-4 5-4 NO LENGIH NO LENGIH NO LENGTH NO LENGIH NO LENGTH

Male 9 900 5489 0 0 9 900 5489 0 0 Female 1 10 bull 0 552 QJ QJ 0 1 10QJ 5520 0 0 Total 10 1000 5492 0 0 10 1000 5492 0 0 725-731

bull LI)Male 15 938 5645 15 938 5645 Female 1 62 575 QJ 1 62 575 QJ Total 16 lQJ0QJ 5651 16 100QJ 5651 81-87

Male 24 545 5668 23 523 5768 1 23 3350 Female 20 455 5631 20 455 5631 0 0 Total 441QJ0QJ 5651 43 977 57 QJ 4 1 23 335 QJ 88-814

Male 7 500 5797 7 500 5797 QJ 0 Female 7 500 5596 6 429 5587 1 71 5650 Total 14 1000 5696 13 929 1 71 5650570 815-821

Male 5 455 5492 5 455 5492 Female 6 545 5552 6 545 5552 Total 11 lQJ00 5525 11 100QJ 5525 822-828

Figure 5 Specie apportionment Unalakleet sonar 1983

50

4

40

35

c J 30 0 U

~ 0 25 0 c Q)

u ~

Q) 20a

15

10

5

o L-_lt---__

King Coho Pink Chum Misc

21

----

Figure 6 Sector distribution of counts Unalakleet sonar1983

35

30

25

c 20 G)

() G) 15

0

10

5

35

30

25 c G)

() 20

G)

0 15

10

5

( s ()u t h ban k )

July 3-5

~-2 4 6 8 1 0 1 2 1 4 1 6shy

Sector

August 21-23

2 4 6 8 10 12 14 16

Sector

22

Figure 7 Hourly distribution of counts Unalakleet sonar 1983

(south bank)

14

12

10

c 8 GI U ~

6

July 3-5

~GI

I =~ Q

4

2 0

2 4 6 8 10 12 14 1 6 18 20 22 24

TIme

9

8

7

6

5 c GI U ~ 4 GI

Q

3

2

August 21-23

1

0

2 4 6 8 10 12 14

TIme

16

23

18 20 22 24

Figure 8 Unalakleet River Test Fishing Daily King CPUE in 8 14 mesh 1983

10

9 N

8 shy

7 I 0 c 6E

n

l J I I

0 0 5 c (J 4 co 0

3

2

1

I I

27 1 5 10 15 20 25 1 5 10 15 20 25 31

~ June July

Figure 9 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1983bull

~

middot10

09 U N

I 08 0 c 07E I ()

- 06 E-0 0 05 shy~ () 04 ca - ()

03E I 0 02

01

27 1 5 10 15 2Q 25 1 5 10 15 20 25 31

June July

Figure 10 Unalakleet River Test Fishing Daily Coho CPUE in 5 78 mesh 1983

1

6

5

I 0

NI II I 0 t

E 4

0 0 c 3() cu 0

2

1

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sept U

Figure 11 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1983

200

175

150

I 0 c 125E I ()

E

r-shy-0 I I N 0 100 c ()-as ()

75E I 0

50

25

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sel ber

20

Figure 12 Unalakleet River Test Fishing Daily Pink CPUE in 4 mesh 1983

18

I

0) N

II

16

I ishy

14 J 0 t 12shyE 0 10 0 shys 8 () as

0 6 1 I V 4

2

~ I

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

--

Figure 13 Unalakleet River Test Fishing Cumulat ive Pink CPUE in 4 mesh 1983

10

9 01 N 8

J 0 J 7 E J 0 6 E- 50 ~

amp 4() ca

0 3 E J

0 2

1

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

Figure 14 Unalakleet River Test Fishing Daily CPUE in 5 14 amp 5 78 mesh 1983

14

13shy

12

11

10

9 J 0 8

I z shy-E 7 0 0 shys ~u aI 0

4 I

31

2

1

II

0 C1)I 11

I I I II

bull y AA(net changed to 5 78

AA A 11 I

~ I~ V ~

- I

VI

1 5 10 15 20- 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

cJune July August

Figure 15 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 14 amp 5 78 mesh 1983

It

5

--l C)

net changed to 5 78

~ 4 o

c E (J ~

3E o o c 2 u ~ -(J

E ~ (J 1

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 16 Unalakleet River Test Fishing Catch Proportions 1983

60

55

---- King50

__ Coho 45

P--Q Pink

40 __ Chum

I LU 35J D I 0

30 ICQ 0 25 I

N Cl0 20

c G)

15u G)

D

10

5 A 1 I

I 4 I

I I

3 lt

~

2

I I1 - I bull I

I ~ ~ ~ t -J ~~ - _

r

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 17 Unalakleet Area Temperatures 1983

18

16

14

12

til 10I

u-G) 80 CI) G) G) 6 C) G)

Q 4

2

C) C)

__ Air

0--0 River 2

0

-2

-4

---------~ ~

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August 5e

4

Figure 18 Unalakleet River Turbidity and Depth 1983

__ Secchi Reading

-t ()

II) G)-G)

3

iE 2

1

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August

~ 1 _ ~ r--- I shy I __ I 01 --shy

Figure 19 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1981-83

27 31 5

May

_1981

____ 1982

o 0 1983 11) C)

Changed to 5 78 mesh

I

t

~-~o-~ Q-O--Oolt)-(IQ-----l

--1

_10 15 20 25 30 5 10 15 20 25 31

June July

I I I

~

0 ~

r E ~

CJ shyE 0 0 I

shyr u-cu CJ

E ~

CJ

4

35

30

25

20

15

10

05

Figure 20 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 78 mesh 1981-83

5

4 lI 0

z

E lI 0 3 E-0 0 2 r CJ-cu 0

E lI 1 0

__1981 ~~

~ ___1982

a 01983 5 148 mesh from 65-810

_----shy-- 0 - -- C1) A - _ - ~

~ I

I

II I I I I I

I I

1

~ -

-

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 21 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 mesh- 1981-83

8

70

60

50

40 0

r 30E

0 20E-0 0 10 s= u 8 tV 0 6E 0 4

2

__1981 ____ 1982

_1983

shy--- -- shy--- shy J - -

I

I

C1- J

I

-----l---l ~--~r---------------r--

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 22 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1981-83

_1981

~ __ 1982

~1983

25

00I _ __ _ _ C)~ I __ _ I

I V o 20 rt I I

E I AshyI o E 15-o o z u 10 tU o E I o 5

I

1 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

July August 5

----------------------------------------------------------------

Table 1 Unalakleet River Subsistence King Salmon Index 1983

Number of Number of Date Fishermen Chinook Average

08 02 18 05 05 00 02 58 92 62 72 72 42 28 52 60 62 20 47 50 35 25 15

June 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Totals

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 4 4 4

4

3 1 7 2 2 o 1

23 37 25 29 29 17 11 21 24 25

6 14 15 14 H~

6

322

~

39

---------------------- ---------- --------------------------------------

----------------------------------------------------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983

Daily Proportion Cumu1 Prop Date South North Total of Total Cumulative of Total

64 7 23 30 1313131 313 013131 65 44 187 231 00137 261 01308 66 12 162 174 01305 435 01313 67 8 283 291 1313139 726 01322 68 0000 726 13022 69 3 221 224 013137 950 13029 610 26 245 271 131308 1221 13037 611 56 254 310 131310 1531 131347 612 44 736 780 013 24 2311 13071 613 64 1188 1252 01339 3563 01113 614 59 1752 1811 0056 5374 0166 615 97 844 941 01329 6315 0195 616 165 729 894 0028 7209 0223 617 151 i 604 1755 0054 8964 middot 0277 618 i ll 1524 1635 0051 10599 13328 619 175 2000 2175 0067 12774 13395 620 171 21320 2191 0068 14965 0463 621 220 1613 1833 0057 16798 0520 622 199 2065 2264 0070 19062 0590 623 362 21334 2396 0074 21458 13664 624 876 3403 4279 13133 25737 0797 625 1244 2023 3267- 0101 29004 0898 626 738 1601 2339 0073 31343 0971 627 573 3265 3838 0119 35181 1090 628 547 1868 2415 0075 37596 1165 629 528 4028 4556 0141 42152 1306 630 430 430 0013 42582 1319 71 240 240 01307 42822 1326 72 201 975 1176 0036 43998 1362 73 309 8842 9151 0284 53149 1646 74 475 6385 6860 0213 60009 1859 75 565 3342 3907 0121 63916 1980 76 1377 2094 3471 0108 67387 2088 77 1416 3173 4589 0142 71976 2230 78 1472 1420 2892 0090 74868 2320 79 2071 1452 3523 01113 78391 2430 710 3318 2434 5752 0178 84143 2608 711 2673 2866 5539 13172 89682 2780 712 1665 1747 3412 13106 93094 2886 713 21317 1951 3968 13123 97062 3009 714 2991 2664 5655 0175 102717 3184 715 2646 2548 5194 13161 107911 3345 716 2488 2886 5374 0167 113285 3512 717 1585 4063 5648 0175 118933 3687 718 3559 9326 12885 0400 131818 4087 719 2948 2398 5346 13166 137164 4253 720 1640 3330 4970 0154 142134 4407 721 2416 6420 8836 0274 150970 4681 722 3298 3298 0102 154268 4783 723 5007 5007 0155 159275 4938

40

--------------------------------------------------------------------

--------------------------------------------------------------------

-----------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983 (Continued)

Daily Proportion Cum Prop Date South North Total of Total Cumu1at i ve of Total

724 4005 7804 11809 0366 171084 5304 725 2453 3392 5845 0181 176929 5485 726 2166 12094 14260 0442 191189 5927 727 1914 4472 6386 0198 197575 6125 728 1603 3463 5066 0157 202641 6282 729 1251 1914 3165 0098 205806 6380 730 1710 2495 4205 en30 210011 6510 731 2542 1887 4429 0137 214440 6647 81 4479 2271 6750 0209 221190 6856 82 1103 1806 2909 0091 224099 6947 83 1719 942 2661 0083 226760 bull 7030 84 1519 2557 4076 0126 230836 7156 85 1259 1113 2372 0074 233208 7230 86 940 2189 3129 0097 236337 7327 87 1467 4354 5821 0180 242158 7507 88 2318 1584 3902 0121 246060 7628 89 2098 1505 3603 0112 249663 7740 810 2629 1517 4146 bull 0129 253809 7869 811 3753 1091 4844 0150 258653 8019 812 1489 523 2012 0062 260665 8081 813 744 353 1097 0034 261762 8386 814 981 981 bull 0030 262743 8145 815 2324 2324 0072 265067 8217 816 2638 2638 0082 267705 8299 817 2073 731 2804 0087 270509 8115 818 2244 675 2919 0091 273428 8477 819 3240 696 3936 0122 277364 8599 820 2363 503 2866 0089 280230 8688 821 6789 1111 7900 0245 288130 8933 822 6489 563 7052 0219 295182 9152 823 5077 298 5375 0167 300557 9319 824 2616 298 2914 0090 303471 9409 825 3933 412 4345 0135 307816 9544 826 1393 554 1947 0060 309763 9604 827 1203 463 1666 0052 311429 9656 828 1197 542 1739 0054 313168 9710 829 1244 221 1465 0045 314633 9755 830 1011 199 1210 0038 315843 9793 831 718 214 932 0029 316775 9822 91 1324 318 1642 0052 318417 9874 92 1362 307 1669 0052 320086 9926 93 1146 314 1460 0045 321546 9971 94 652 296 948 bull 0029 322494 10000

148465 174029 322494 10000

41

----------------------------------------------------------------------

-------------------------------------------------------------------- --

------

TABLE 3A Unalakleet River Species Apportionment by Test Period King Salmon 1983

3-Day App Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 76 0272 76 0272

69-612N 28 0100 104 0372

612N-615 461 1652 565 2024

616-619N 419 1502 984 3526

619N-622 170 0609 1154 4135

623-626N 722 2588 1876 6723

626N-629 264 0946 2140 7669

630-73N 103 0639 2243 8038

73N-76 188 0674 2431 8712

77-710N 0 0000 2431 8712

710N-713 0 0000 2431 8712

714-717N 267 0957 2698 9969

717N-720 0 0000 2698 9669

721-724N 92 0331 2790 1 0000

724N-727 0 0000 2790 10000

728-731N 0 0000 2790 1 0000

731N-83 0 0000 2790 1 0000

2790 10000

42

Dates

714-717N

717N-720

721-724N

724N-727

728-731N

731N-83

84-87N

87N-810

811-814N

814N-817

818-821N

821N-824

825-828N

828N-831

91-94

TABLE 3B Unalakleet River Species Apportionment by Test Period Coho Salmon

3-Day Count

583

338

436

550

2650

1174

793

1435

5074

1280

435

2265

171H3

1983

Proportion of Season Total

0000

0000

0000

0343

0199

0256

0323

1558

0690

0466

0843

2983

0752

0256

1331

Cumulative Count

583

921

1357

1907

4557

5731

6524

7959

13033

14313

14748

17013

Cumulative Proportion

0000

0000

0000

0343

0542

0798

1121

2679

3369

3835

4678

7661

8413

8669

10000

43

------------------------------------------------------------------

------------------------------------------------------------------

----- ------

TABLE 3C Unalakleet River Species Apportionment by Test Period Pink Salmon 1983

3-Day P roport ion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 0 0000

6l2N-615 0 0000

616-6l9N 97 0012

6l9N-622 332 0036

623-626N 1245 0136

626N-629 6624 0721

630-73N 3699 0403

73N-76 10762 1171

77-7l0N 7704 0838

710N-7l3 8529 0928

714-717N 9771 1063

717N-720 13845 1507

721-724N 11361 1236

724N-727 6544 0712

728-731N 3545 0386

731N-83 1628 0177

84-87N 1224 0133

87N-810 1777 0193

811-814N 802 0087

814N-817 561 0061

818-821N 533 0058

821N-824 8313 13091

825-828N 468 0051

828N-831 0 0000

91-94 0 0000

91881 10000

0 0000

0 0000

0 0000

97 0012

429 0048

1674 0184

8298 0905

11997 1308

22759 2479

30463 3317

38992 4245

48763 5308

62608 6815

73969 8051

80513 8763

84058 9149

85686 9326

86910 9459

88687 9652

89489 9739

90050 9800

90583 9858

91413 9949

91881 10000

91881 10000

91881 1 0000 44

------------------------------------------------------------------

------------ ------------------------------------------------------

----- ------

TABLE 3D Unalakleet River Species Apportionment by Test Period Chum Salmon 1983

3-Day Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 100 0017

612N-615 268 0046

616-619N 838 0144

619N-622 1180 0202

623-626N 2744 0471

626N-629 1569 0270

630-73N 796 0137

73N-76 2972 0510

77-710N 2068 0355

710N-713 2622 0450

714-717N 4133 0710

717N-720 5596 0960

721-724N 4978 0854

724N-727 8974 1540

728-731N 2241 0385

731N-83 2079 ~0357

84-87N 3009 0516

87N-810 2432 0417

811-814N 937 0161

814N-817 454 0078

818-821N 2584 0443

821N-824 2739 0470

825-828N 1783 0306

828N-831 765 0131

91-94 412 0070

58273 10000 45

0 0000

100 0017

368 0063

1206 0207

2386 0409

5130 0880

6699 1150

7495 1287 f

10467 1797

12535 2152

15157 2602

19290 3312

24886 4272

29864 5216

38838 6666

41079 7051

43158 7408

46167 7924

48559 8341

49536 8502

49990 8580

52574 9023

55313 9493

57096 9799

57861 9930

58273 1 0000

-------------------------------------------------------------

------------------------- ------------------------------------

TABLE 4 Unalakleet River Test Net Proportions by Sample Perio-d 1983 ( Selective CPUE)

Dates Chinook Coho Pink Chum Misc

64-68 105 00 00 895

69-612N 24 00 83 893

612N-615 1C~ 5 00 61 834

616-619N 78 18 156 748

619N-622 23 45 160 772

623-626N 65 112 247 576

626N-629 22 553 131 294

630-73N 16 576 124 284

73N-76 10 572 158 260

77-710N 00 555 149 296

710N-713 00 540 166 294

714-717N 14 00 513 217 256

717N-720 00 00 532 215 253

721-724N 04 00 493 216 287

724N-727 00 18 202 277 503

728-731N 00 23 242 153 582

731N-83 00 30 112 143 715

84-87N 44 98 241 617

87N-810 182 122 167 529

811-814N 139 95 111 655

814N-B17 96 68 55 7B1

B18-B21N 105 39 1B9 667

821N-824 263 43 142 552

825-B28N 145 53 202 600

828N-831 97 00 171 732

91-94 396 00 72 532

46

--------

--------

TABLE 4 Una1ak1et River Test Net Proportions 1983 ( Selective CPUE) (Continued)

Comparative Apportionment

Species Apportionment

Chinook 2790 Coho 17013 Pink 91881 Churn 58273

------shySubtotal 169957

Misc Species 152537 ------shy

Total 322494

Substrate Comparison -------------------shy

Bank Counts -----shy

South 148465 North 174029

------shy

Total 322494

Percent of Total Counts

09 53

285 181

5408

472

1000

Percent

460 540

1000

47

-------------------------------------------------------------------

TABLE 5A Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

May 27 28

21 5 482

13 13

1313

1313 21 5 697

13 13

1313

1313 30 240 0 013 937 0 00 31 246 2 41 1183 2 08

June 1 237 0 00 1420 2 07 2 3

256 585

13 13

013 bull 13 13

1676 2 261

2 2

6bull 13 4

5 6 8

160 120 middot 125

13 1

13 42 130

2 421 2541 2666

~ 2 3 3

bull 13 4 136 136

9 122 0 130 2788 3 05 11 117 00 2905 3 05 12 126 13 00 3031 3 05 13 117 1 43 3148 4 06 15 118 0 013 3266 4 136 16 116 1 43 3382 5 138 18 240 13 130 3622 5 07 19 121 0 00 3743 5 07 20 116 0 00 3859 5 136 22 118 1 42 3977 6 138 23 119 1 42 4196 7 08 25 240 0 013 4336 7 138 26 119 13 1313 4455 7 138 27 119 13 1313 4574 7 138 29 1213 13 130 4694 7 137 313 1213 13 00 4814 7 07

July 2 238 0 1313 51352 7 07 3 118 13 013 51713 7 07 4 118 1 42 5288 8 138 6 122 0 00 5410 8 07 7 116 13 00 5526 8 07

10 126 0 1313 5652 8 07 11 119 0 013 5771 8 07 13 116 13 130 5887 8 07 14 119 2 84 6006 10 07 17 122 0 00 6128 10 07 18 112 0 1313 6240 10 136 20 119 13 00 6359 10 06 21 112 0 013 6471 10 06

6471 10

48

------------------------------------------------------------------

------------------------------------------------------------------

TABLE 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983

Cum Cum Date Hours Catch CPUE Hours Catch CPUE

July 24 26

115 120 0 00

115 235

0 0

00

00 27 117 4 00 352 0 00 29 117 0 137 469 4 34 31 116 3 103 585 7 48

August 2 122 0 00 706 7 40 3 122 2 66 828 9 43 5 118 1 34 946 10 42 7 128 14 437 1074 24 89 9 257 14 218 1331 38 114

10 125 21 672 1456 59 162 12 13 middot- 0 00 1469 x 59 161 14 10 7 12 449 1576 71 180 16 122 2 66 1698 73 172 17 123 6 196 1821 79 174 19 118 1 34 1939 80 165 21 112 6 214 2051 86 168 23 120 3 100 217 1 89 164 24 115 2 70 2286 91 159 26 115 5 174 2401 96 160 28 119 0 00 2520 96 152 30 119 4 1 34 2639 100 152 31 117 1 34 2756 101 147

Sept 2 123 5 33 2879 106 147 4 479 15 125 3358 121 144 6 238 11 185 3596 132 147 7 237 5 84 3833 137 143 8 238 6 1 01 4071 143 141 9 242 10 1 65 4313 153 142

10 242 3 50 4555 156 137 11 242 2 33 4797 158 132 12 241 8 133 5038 166 132 14 227 14 247 5265 180 137 15 242 9 149 5507 189 137 16 210 3 57 5717 192 134 17 239 2 33 5956 194 130 18 230 2 35 6186 196 127 20 489 4 33 6675 200 120 21 24 3 50 6915 203 117 22 242 0 00 7157 203 113 23 234 1 17 7391 204 110

----shy

7391 204

Mesh size = 5 14 from 724 to 810

49

------------------------------------------------------------------

TABLE 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE ------~-----------------------------------------------------------June 16 122 1 33 122 1 33

17 118 0 bull 0 0 240 1 17 20 120 2 67 360 3 33 21 118 0 00 478 3 25 23 119 2 67 597 5 34 24 119 3 102 716 8 45 27 116 19 655 832 27 130 28 120 22 733 952 49 206 30 120 40 1333 1072 89 332

July 1 115 36 1252 1187 125 421 4 122 30 983 1309 155 474 5 114 47 1649 1423 202 568 7 118 30 1016 1541 232 602 8 120 shy 24 800 1661 -$ 256 616

11 122 42 1377 1783 298 669 12 120 29 967 1903 327 687 14 116 37 1276 2019 364 721 15 118 40 1356 2137 404 756 18 121 60 1976 2258 464 822 19 119 30 740 2377 494 831 21 125 61 1952 2502 555 887 22 118 25 847 2627 580 883 25 122 16 525 2749 596 867 26 116 15 517 2865 611 853 28 122 28 918 2987 639 856 29 117 11 376 3104 650 838

August 1 120 7 233 3224 657 815 2 119 9 303 3345 666 796 4 120 3 100 3465 669 772 5 118 5 170 3583 674 752 8 114 7 245 3697 681 734

11 123 7 337 3 82 0 688 720 15 118 2 68 3938 690 701 16 113 5 177 4051 695 686 18 98 3 122 4149 698 673 19 119 1 34 4268 699 655 22 112 0 00 4380 699 638 23 115 0 00 4495 699 622 25 120 2 66 4615 701 606 26 112 1 36 4727 702 594 29 116 0 00 4843 702 580 30 11 5 0 00 4958 702 566

Sept 1 115 0 00 5079 702 553 2 112 0 00 5191 702 541

----shy5079 702

50

-----------------------------------------------------------------

------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

June 5 73 0 00 73 0 00 7 126 0 00 199 0 00 8 127 0 00 326 0 bull 0 0

10 11 4 3 105 440 3 27 12 113 2 71 553 5 36 14 119 1 34 672 6 36 15 116 4 138 788 10 51 17 116 3 103 904 13 56 19 118 6 203 1022 19 74 21 118 0 00 1140 19 67 22 117 10 342 1257 29 92 24 116 3 103 1373 32 93 26 119 11 370 1492 43 115 28 11 8 6 203 1610 $ 49 122 29 115 13 452 1725 62 144

July 1 119 8 269 1844 70 152 3 119 17 571 1963 87 177 5 119 13 437 2082 100 192 6 12 0 17 567 2202 117 213 8 121 7 231 2323 124 214

10 11 4 18 632 2437 142 233 12 115 12 417 2552 154 241 13 116 37 1276 2668 191 286 15 117 16 547 2785 207 297 17 11 8 31 1051 290 3 238 328 19 118 18 610 3021 256 339 20 115 29 1009 3136 285 364 22 122 17 557 3258 302 371 24 115 24 835 3373 326 387 26 120 19 633 3493 345 395 27 117 11 376 3610 356 394 29 117 14 479 3727 370 397 31 116 18 621 3843 388 404

August 2 121 9 298 3964 397 401 3 122 17 557 4086 414 405 5 11 8 8 271 4204 422 402 7 128 19 594 4332 441 407 9 257 10 156 4589 451 393

10 125 14 448 4714 464 394 12 13 1 308 4727 465 393 14 107 5 187 4834 470 389 16 122 4 131 4956 474 383 17 123 15 488 5079 489 385 19 118 8 271 5197 497 383 21 112 3 107 5309 500 378 23 120 6 200 5429 506 373 24 115 7 243 5544 513 370

51

-----------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 (Continued)

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

August 26 115 5 174 5657 518 366 28 119 1 34 577 6 519 359 30 119 4 134 5895 523 355 31 117 0 00 6012 523 3 48

Sept 2 123 3 98 613 5 526 343 4 479 2 17 6614 528 319 6 238 1 17 6852 529 309 7 237 0 00 7089 529 298 8 9

238 242

1 2

17

33 7327 7569

clt

530 532

289 281

10 242 3 50 7811 535 274 11 242 0 00 8053 535 266 12 241 2 33 8294 537 259 14 227 3 53 8521 540 253 15 242 0 00 8763 540 246 16 210 1 19 8973 541 241 17 239 2 33 9212 543 236 18 230 0 00 9442 543 230 20 489 0 00 9931 543 219 21 240 2 33 10171 545 214 22 242 0 0 10413 545 209 23 234 0 00 10647 545 205

----shy

10647 545

52

------------------------------------------------------------------------

------

TABLE 6A Unalakleet River Sonar Site Drift Sets5 1 4n Me sh 19 83 bull

Date Time Result

July 19 1405-1413 1 burbot July 23 1040-1055 1 pink caracass July 27 1520-1530 1 coho August 3 1444-1501 4 coho August 22 1930-1937 0 August 23 937-943 1 coho 1 pink carcass August 26 1117-1127 1 coho 3 churn August 31 1018-1034 3 churn

TABLE 6B Unalakleet River Sonar Site Beach Seines 1983

Date Time Distance Result

July 20 1445 120 meters 4 pink 1 churn 13 Dolly Varden 1 whitefish

July 25 1500 120 meters 6 pink 1 churn 1 Dolly Varden 4 whitefish 1 grayling

July 28 1700 120 meters 4 coho 2 pink 2 churn 1 Dolly Varden

August 1 2010 300 meters 4 pink 3 churn 8 Dolly Varden

August 4 1015 130 meters 5 coho 3 pink 3 churn 65 Dolly Varden 3 whitefish 3 grayling

August 24 1110 130 meters 18 coho 2 Dolly Varden 2 grayling

August 29 1715 120 meters 11 coho 1 pink 69 churn 1 Dolly Varden 2 grayling

Seine done at mile 12 Unalakleet River

53

--------------------------------------------------------------------------------------------------

--------------------------------------------------------------------------------------------------

TABLE 7 AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER CATCH SAMPLE SPORT CATCH AND SPAWNING SURVEYS 1983

II

COMBINED 3-2 4-2 4-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 31 646 6702 5 104 5010 8 167 5688 1 21 5900

Female 17 354 8540 o o 1 21 5450 o o

Total 48 1000 7353 5 104 5010 9 188 5661 1 21 5900

~ 11)

5-2 6-2 7-2 7-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 11 229 7382 6 125 8350 0 0 0 0

Female 2 42 7925 12 250 8742 1 21 10650 1 21 8350

Total 13 271 7465 18 375 8611 1 21 10650 1 21 8350

TABLE 8A AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER TEST NET SAMPLE 1983

-----~-------------------------------------------------------------------------------------------------------

gt

COMBINED 4-2 5-2 5-3 6-2 7-2 NO LENGIH NO LENGIH NO LENGIH NO LENGTH NO LENGTH NO LENGTr

8 14 n

Male 3 333 8107 0 1 111 5800 o 0 2 222 9260 0 0 Female 6 667 8295 0 0 1 111 7600 o o 4 444 8310 1 111 8930 Total 9 10 e 0 8232 0 o 2 222 6700 o o 6 667 8627 1 111 8930

If) If)

5 14 Male 19 1000 6298 12 632 5392 4 211 6990 0 o 3 158 8997 0 0 Female o 0 o o o o o o 0 0 0 0 Total 19 1000 6298 12 632 5392 4 211 6990 o o 3 158 8997 0 0

4 n or Smaller Male 6 667 5930 1 111 4660 2 222 6325 3 333 6090 0 o 0 o Female 3 333 8970 o o o o o o 3 333 8970 0 o Total 9 1000 6943 1 111 466 2 222 6325 3 33 3 6090 3 33 3 8970 0 0

TOTAL Hale 28 757 6413 13 351 5336 7 189 6630 3 8 1 6090 5 13 5 9102 o 0 Female 9 243 852 o o 1 27 7600 o o 7 189 8593 1 2 7 8930 Total 37 1000 6925 13 351 5336 8 216 6751 3 8 1 6090 12 324 88 e 5 1 2 7 8930

---------------------------------------------------------------------------------------------------------

---------------------------------------------------------------------------------------------------------

TABLE 8B AGE SEX AND SIZE COMPOSITION OF NORTON SOUND COHO SALMON UNALAKLEET RIVER TEST NET SAMPLE 5 14 AND 5 78 GEAR 1983

COMBINED 3-2 4-3 4-4 5-4 NO LENGIH NO LENGIH NO LENGTH NO LENGIH NO LENGTH

Male 9 900 5489 0 0 9 900 5489 0 0 Female 1 10 bull 0 552 QJ QJ 0 1 10QJ 5520 0 0 Total 10 1000 5492 0 0 10 1000 5492 0 0 725-731

bull LI)Male 15 938 5645 15 938 5645 Female 1 62 575 QJ 1 62 575 QJ Total 16 lQJ0QJ 5651 16 100QJ 5651 81-87

Male 24 545 5668 23 523 5768 1 23 3350 Female 20 455 5631 20 455 5631 0 0 Total 441QJ0QJ 5651 43 977 57 QJ 4 1 23 335 QJ 88-814

Male 7 500 5797 7 500 5797 QJ 0 Female 7 500 5596 6 429 5587 1 71 5650 Total 14 1000 5696 13 929 1 71 5650570 815-821

Male 5 455 5492 5 455 5492 Female 6 545 5552 6 545 5552 Total 11 lQJ00 5525 11 100QJ 5525 822-828

----

Figure 6 Sector distribution of counts Unalakleet sonar1983

35

30

25

c 20 G)

() G) 15

0

10

5

35

30

25 c G)

() 20

G)

0 15

10

5

( s ()u t h ban k )

July 3-5

~-2 4 6 8 1 0 1 2 1 4 1 6shy

Sector

August 21-23

2 4 6 8 10 12 14 16

Sector

22

Figure 7 Hourly distribution of counts Unalakleet sonar 1983

(south bank)

14

12

10

c 8 GI U ~

6

July 3-5

~GI

I =~ Q

4

2 0

2 4 6 8 10 12 14 1 6 18 20 22 24

TIme

9

8

7

6

5 c GI U ~ 4 GI

Q

3

2

August 21-23

1

0

2 4 6 8 10 12 14

TIme

16

23

18 20 22 24

Figure 8 Unalakleet River Test Fishing Daily King CPUE in 8 14 mesh 1983

10

9 N

8 shy

7 I 0 c 6E

n

l J I I

0 0 5 c (J 4 co 0

3

2

1

I I

27 1 5 10 15 20 25 1 5 10 15 20 25 31

~ June July

Figure 9 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1983bull

~

middot10

09 U N

I 08 0 c 07E I ()

- 06 E-0 0 05 shy~ () 04 ca - ()

03E I 0 02

01

27 1 5 10 15 2Q 25 1 5 10 15 20 25 31

June July

Figure 10 Unalakleet River Test Fishing Daily Coho CPUE in 5 78 mesh 1983

1

6

5

I 0

NI II I 0 t

E 4

0 0 c 3() cu 0

2

1

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sept U

Figure 11 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1983

200

175

150

I 0 c 125E I ()

E

r-shy-0 I I N 0 100 c ()-as ()

75E I 0

50

25

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sel ber

20

Figure 12 Unalakleet River Test Fishing Daily Pink CPUE in 4 mesh 1983

18

I

0) N

II

16

I ishy

14 J 0 t 12shyE 0 10 0 shys 8 () as

0 6 1 I V 4

2

~ I

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

--

Figure 13 Unalakleet River Test Fishing Cumulat ive Pink CPUE in 4 mesh 1983

10

9 01 N 8

J 0 J 7 E J 0 6 E- 50 ~

amp 4() ca

0 3 E J

0 2

1

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

Figure 14 Unalakleet River Test Fishing Daily CPUE in 5 14 amp 5 78 mesh 1983

14

13shy

12

11

10

9 J 0 8

I z shy-E 7 0 0 shys ~u aI 0

4 I

31

2

1

II

0 C1)I 11

I I I II

bull y AA(net changed to 5 78

AA A 11 I

~ I~ V ~

- I

VI

1 5 10 15 20- 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

cJune July August

Figure 15 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 14 amp 5 78 mesh 1983

It

5

--l C)

net changed to 5 78

~ 4 o

c E (J ~

3E o o c 2 u ~ -(J

E ~ (J 1

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 16 Unalakleet River Test Fishing Catch Proportions 1983

60

55

---- King50

__ Coho 45

P--Q Pink

40 __ Chum

I LU 35J D I 0

30 ICQ 0 25 I

N Cl0 20

c G)

15u G)

D

10

5 A 1 I

I 4 I

I I

3 lt

~

2

I I1 - I bull I

I ~ ~ ~ t -J ~~ - _

r

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 17 Unalakleet Area Temperatures 1983

18

16

14

12

til 10I

u-G) 80 CI) G) G) 6 C) G)

Q 4

2

C) C)

__ Air

0--0 River 2

0

-2

-4

---------~ ~

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August 5e

4

Figure 18 Unalakleet River Turbidity and Depth 1983

__ Secchi Reading

-t ()

II) G)-G)

3

iE 2

1

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August

~ 1 _ ~ r--- I shy I __ I 01 --shy

Figure 19 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1981-83

27 31 5

May

_1981

____ 1982

o 0 1983 11) C)

Changed to 5 78 mesh

I

t

~-~o-~ Q-O--Oolt)-(IQ-----l

--1

_10 15 20 25 30 5 10 15 20 25 31

June July

I I I

~

0 ~

r E ~

CJ shyE 0 0 I

shyr u-cu CJ

E ~

CJ

4

35

30

25

20

15

10

05

Figure 20 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 78 mesh 1981-83

5

4 lI 0

z

E lI 0 3 E-0 0 2 r CJ-cu 0

E lI 1 0

__1981 ~~

~ ___1982

a 01983 5 148 mesh from 65-810

_----shy-- 0 - -- C1) A - _ - ~

~ I

I

II I I I I I

I I

1

~ -

-

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 21 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 mesh- 1981-83

8

70

60

50

40 0

r 30E

0 20E-0 0 10 s= u 8 tV 0 6E 0 4

2

__1981 ____ 1982

_1983

shy--- -- shy--- shy J - -

I

I

C1- J

I

-----l---l ~--~r---------------r--

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 22 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1981-83

_1981

~ __ 1982

~1983

25

00I _ __ _ _ C)~ I __ _ I

I V o 20 rt I I

E I AshyI o E 15-o o z u 10 tU o E I o 5

I

1 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

July August 5

----------------------------------------------------------------

Table 1 Unalakleet River Subsistence King Salmon Index 1983

Number of Number of Date Fishermen Chinook Average

08 02 18 05 05 00 02 58 92 62 72 72 42 28 52 60 62 20 47 50 35 25 15

June 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Totals

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 4 4 4

4

3 1 7 2 2 o 1

23 37 25 29 29 17 11 21 24 25

6 14 15 14 H~

6

322

~

39

---------------------- ---------- --------------------------------------

----------------------------------------------------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983

Daily Proportion Cumu1 Prop Date South North Total of Total Cumulative of Total

64 7 23 30 1313131 313 013131 65 44 187 231 00137 261 01308 66 12 162 174 01305 435 01313 67 8 283 291 1313139 726 01322 68 0000 726 13022 69 3 221 224 013137 950 13029 610 26 245 271 131308 1221 13037 611 56 254 310 131310 1531 131347 612 44 736 780 013 24 2311 13071 613 64 1188 1252 01339 3563 01113 614 59 1752 1811 0056 5374 0166 615 97 844 941 01329 6315 0195 616 165 729 894 0028 7209 0223 617 151 i 604 1755 0054 8964 middot 0277 618 i ll 1524 1635 0051 10599 13328 619 175 2000 2175 0067 12774 13395 620 171 21320 2191 0068 14965 0463 621 220 1613 1833 0057 16798 0520 622 199 2065 2264 0070 19062 0590 623 362 21334 2396 0074 21458 13664 624 876 3403 4279 13133 25737 0797 625 1244 2023 3267- 0101 29004 0898 626 738 1601 2339 0073 31343 0971 627 573 3265 3838 0119 35181 1090 628 547 1868 2415 0075 37596 1165 629 528 4028 4556 0141 42152 1306 630 430 430 0013 42582 1319 71 240 240 01307 42822 1326 72 201 975 1176 0036 43998 1362 73 309 8842 9151 0284 53149 1646 74 475 6385 6860 0213 60009 1859 75 565 3342 3907 0121 63916 1980 76 1377 2094 3471 0108 67387 2088 77 1416 3173 4589 0142 71976 2230 78 1472 1420 2892 0090 74868 2320 79 2071 1452 3523 01113 78391 2430 710 3318 2434 5752 0178 84143 2608 711 2673 2866 5539 13172 89682 2780 712 1665 1747 3412 13106 93094 2886 713 21317 1951 3968 13123 97062 3009 714 2991 2664 5655 0175 102717 3184 715 2646 2548 5194 13161 107911 3345 716 2488 2886 5374 0167 113285 3512 717 1585 4063 5648 0175 118933 3687 718 3559 9326 12885 0400 131818 4087 719 2948 2398 5346 13166 137164 4253 720 1640 3330 4970 0154 142134 4407 721 2416 6420 8836 0274 150970 4681 722 3298 3298 0102 154268 4783 723 5007 5007 0155 159275 4938

40

--------------------------------------------------------------------

--------------------------------------------------------------------

-----------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983 (Continued)

Daily Proportion Cum Prop Date South North Total of Total Cumu1at i ve of Total

724 4005 7804 11809 0366 171084 5304 725 2453 3392 5845 0181 176929 5485 726 2166 12094 14260 0442 191189 5927 727 1914 4472 6386 0198 197575 6125 728 1603 3463 5066 0157 202641 6282 729 1251 1914 3165 0098 205806 6380 730 1710 2495 4205 en30 210011 6510 731 2542 1887 4429 0137 214440 6647 81 4479 2271 6750 0209 221190 6856 82 1103 1806 2909 0091 224099 6947 83 1719 942 2661 0083 226760 bull 7030 84 1519 2557 4076 0126 230836 7156 85 1259 1113 2372 0074 233208 7230 86 940 2189 3129 0097 236337 7327 87 1467 4354 5821 0180 242158 7507 88 2318 1584 3902 0121 246060 7628 89 2098 1505 3603 0112 249663 7740 810 2629 1517 4146 bull 0129 253809 7869 811 3753 1091 4844 0150 258653 8019 812 1489 523 2012 0062 260665 8081 813 744 353 1097 0034 261762 8386 814 981 981 bull 0030 262743 8145 815 2324 2324 0072 265067 8217 816 2638 2638 0082 267705 8299 817 2073 731 2804 0087 270509 8115 818 2244 675 2919 0091 273428 8477 819 3240 696 3936 0122 277364 8599 820 2363 503 2866 0089 280230 8688 821 6789 1111 7900 0245 288130 8933 822 6489 563 7052 0219 295182 9152 823 5077 298 5375 0167 300557 9319 824 2616 298 2914 0090 303471 9409 825 3933 412 4345 0135 307816 9544 826 1393 554 1947 0060 309763 9604 827 1203 463 1666 0052 311429 9656 828 1197 542 1739 0054 313168 9710 829 1244 221 1465 0045 314633 9755 830 1011 199 1210 0038 315843 9793 831 718 214 932 0029 316775 9822 91 1324 318 1642 0052 318417 9874 92 1362 307 1669 0052 320086 9926 93 1146 314 1460 0045 321546 9971 94 652 296 948 bull 0029 322494 10000

148465 174029 322494 10000

41

----------------------------------------------------------------------

-------------------------------------------------------------------- --

------

TABLE 3A Unalakleet River Species Apportionment by Test Period King Salmon 1983

3-Day App Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 76 0272 76 0272

69-612N 28 0100 104 0372

612N-615 461 1652 565 2024

616-619N 419 1502 984 3526

619N-622 170 0609 1154 4135

623-626N 722 2588 1876 6723

626N-629 264 0946 2140 7669

630-73N 103 0639 2243 8038

73N-76 188 0674 2431 8712

77-710N 0 0000 2431 8712

710N-713 0 0000 2431 8712

714-717N 267 0957 2698 9969

717N-720 0 0000 2698 9669

721-724N 92 0331 2790 1 0000

724N-727 0 0000 2790 10000

728-731N 0 0000 2790 1 0000

731N-83 0 0000 2790 1 0000

2790 10000

42

Dates

714-717N

717N-720

721-724N

724N-727

728-731N

731N-83

84-87N

87N-810

811-814N

814N-817

818-821N

821N-824

825-828N

828N-831

91-94

TABLE 3B Unalakleet River Species Apportionment by Test Period Coho Salmon

3-Day Count

583

338

436

550

2650

1174

793

1435

5074

1280

435

2265

171H3

1983

Proportion of Season Total

0000

0000

0000

0343

0199

0256

0323

1558

0690

0466

0843

2983

0752

0256

1331

Cumulative Count

583

921

1357

1907

4557

5731

6524

7959

13033

14313

14748

17013

Cumulative Proportion

0000

0000

0000

0343

0542

0798

1121

2679

3369

3835

4678

7661

8413

8669

10000

43

------------------------------------------------------------------

------------------------------------------------------------------

----- ------

TABLE 3C Unalakleet River Species Apportionment by Test Period Pink Salmon 1983

3-Day P roport ion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 0 0000

6l2N-615 0 0000

616-6l9N 97 0012

6l9N-622 332 0036

623-626N 1245 0136

626N-629 6624 0721

630-73N 3699 0403

73N-76 10762 1171

77-7l0N 7704 0838

710N-7l3 8529 0928

714-717N 9771 1063

717N-720 13845 1507

721-724N 11361 1236

724N-727 6544 0712

728-731N 3545 0386

731N-83 1628 0177

84-87N 1224 0133

87N-810 1777 0193

811-814N 802 0087

814N-817 561 0061

818-821N 533 0058

821N-824 8313 13091

825-828N 468 0051

828N-831 0 0000

91-94 0 0000

91881 10000

0 0000

0 0000

0 0000

97 0012

429 0048

1674 0184

8298 0905

11997 1308

22759 2479

30463 3317

38992 4245

48763 5308

62608 6815

73969 8051

80513 8763

84058 9149

85686 9326

86910 9459

88687 9652

89489 9739

90050 9800

90583 9858

91413 9949

91881 10000

91881 10000

91881 1 0000 44

------------------------------------------------------------------

------------ ------------------------------------------------------

----- ------

TABLE 3D Unalakleet River Species Apportionment by Test Period Chum Salmon 1983

3-Day Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 100 0017

612N-615 268 0046

616-619N 838 0144

619N-622 1180 0202

623-626N 2744 0471

626N-629 1569 0270

630-73N 796 0137

73N-76 2972 0510

77-710N 2068 0355

710N-713 2622 0450

714-717N 4133 0710

717N-720 5596 0960

721-724N 4978 0854

724N-727 8974 1540

728-731N 2241 0385

731N-83 2079 ~0357

84-87N 3009 0516

87N-810 2432 0417

811-814N 937 0161

814N-817 454 0078

818-821N 2584 0443

821N-824 2739 0470

825-828N 1783 0306

828N-831 765 0131

91-94 412 0070

58273 10000 45

0 0000

100 0017

368 0063

1206 0207

2386 0409

5130 0880

6699 1150

7495 1287 f

10467 1797

12535 2152

15157 2602

19290 3312

24886 4272

29864 5216

38838 6666

41079 7051

43158 7408

46167 7924

48559 8341

49536 8502

49990 8580

52574 9023

55313 9493

57096 9799

57861 9930

58273 1 0000

-------------------------------------------------------------

------------------------- ------------------------------------

TABLE 4 Unalakleet River Test Net Proportions by Sample Perio-d 1983 ( Selective CPUE)

Dates Chinook Coho Pink Chum Misc

64-68 105 00 00 895

69-612N 24 00 83 893

612N-615 1C~ 5 00 61 834

616-619N 78 18 156 748

619N-622 23 45 160 772

623-626N 65 112 247 576

626N-629 22 553 131 294

630-73N 16 576 124 284

73N-76 10 572 158 260

77-710N 00 555 149 296

710N-713 00 540 166 294

714-717N 14 00 513 217 256

717N-720 00 00 532 215 253

721-724N 04 00 493 216 287

724N-727 00 18 202 277 503

728-731N 00 23 242 153 582

731N-83 00 30 112 143 715

84-87N 44 98 241 617

87N-810 182 122 167 529

811-814N 139 95 111 655

814N-B17 96 68 55 7B1

B18-B21N 105 39 1B9 667

821N-824 263 43 142 552

825-B28N 145 53 202 600

828N-831 97 00 171 732

91-94 396 00 72 532

46

--------

--------

TABLE 4 Una1ak1et River Test Net Proportions 1983 ( Selective CPUE) (Continued)

Comparative Apportionment

Species Apportionment

Chinook 2790 Coho 17013 Pink 91881 Churn 58273

------shySubtotal 169957

Misc Species 152537 ------shy

Total 322494

Substrate Comparison -------------------shy

Bank Counts -----shy

South 148465 North 174029

------shy

Total 322494

Percent of Total Counts

09 53

285 181

5408

472

1000

Percent

460 540

1000

47

-------------------------------------------------------------------

TABLE 5A Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

May 27 28

21 5 482

13 13

1313

1313 21 5 697

13 13

1313

1313 30 240 0 013 937 0 00 31 246 2 41 1183 2 08

June 1 237 0 00 1420 2 07 2 3

256 585

13 13

013 bull 13 13

1676 2 261

2 2

6bull 13 4

5 6 8

160 120 middot 125

13 1

13 42 130

2 421 2541 2666

~ 2 3 3

bull 13 4 136 136

9 122 0 130 2788 3 05 11 117 00 2905 3 05 12 126 13 00 3031 3 05 13 117 1 43 3148 4 06 15 118 0 013 3266 4 136 16 116 1 43 3382 5 138 18 240 13 130 3622 5 07 19 121 0 00 3743 5 07 20 116 0 00 3859 5 136 22 118 1 42 3977 6 138 23 119 1 42 4196 7 08 25 240 0 013 4336 7 138 26 119 13 1313 4455 7 138 27 119 13 1313 4574 7 138 29 1213 13 130 4694 7 137 313 1213 13 00 4814 7 07

July 2 238 0 1313 51352 7 07 3 118 13 013 51713 7 07 4 118 1 42 5288 8 138 6 122 0 00 5410 8 07 7 116 13 00 5526 8 07

10 126 0 1313 5652 8 07 11 119 0 013 5771 8 07 13 116 13 130 5887 8 07 14 119 2 84 6006 10 07 17 122 0 00 6128 10 07 18 112 0 1313 6240 10 136 20 119 13 00 6359 10 06 21 112 0 013 6471 10 06

6471 10

48

------------------------------------------------------------------

------------------------------------------------------------------

TABLE 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983

Cum Cum Date Hours Catch CPUE Hours Catch CPUE

July 24 26

115 120 0 00

115 235

0 0

00

00 27 117 4 00 352 0 00 29 117 0 137 469 4 34 31 116 3 103 585 7 48

August 2 122 0 00 706 7 40 3 122 2 66 828 9 43 5 118 1 34 946 10 42 7 128 14 437 1074 24 89 9 257 14 218 1331 38 114

10 125 21 672 1456 59 162 12 13 middot- 0 00 1469 x 59 161 14 10 7 12 449 1576 71 180 16 122 2 66 1698 73 172 17 123 6 196 1821 79 174 19 118 1 34 1939 80 165 21 112 6 214 2051 86 168 23 120 3 100 217 1 89 164 24 115 2 70 2286 91 159 26 115 5 174 2401 96 160 28 119 0 00 2520 96 152 30 119 4 1 34 2639 100 152 31 117 1 34 2756 101 147

Sept 2 123 5 33 2879 106 147 4 479 15 125 3358 121 144 6 238 11 185 3596 132 147 7 237 5 84 3833 137 143 8 238 6 1 01 4071 143 141 9 242 10 1 65 4313 153 142

10 242 3 50 4555 156 137 11 242 2 33 4797 158 132 12 241 8 133 5038 166 132 14 227 14 247 5265 180 137 15 242 9 149 5507 189 137 16 210 3 57 5717 192 134 17 239 2 33 5956 194 130 18 230 2 35 6186 196 127 20 489 4 33 6675 200 120 21 24 3 50 6915 203 117 22 242 0 00 7157 203 113 23 234 1 17 7391 204 110

----shy

7391 204

Mesh size = 5 14 from 724 to 810

49

------------------------------------------------------------------

TABLE 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE ------~-----------------------------------------------------------June 16 122 1 33 122 1 33

17 118 0 bull 0 0 240 1 17 20 120 2 67 360 3 33 21 118 0 00 478 3 25 23 119 2 67 597 5 34 24 119 3 102 716 8 45 27 116 19 655 832 27 130 28 120 22 733 952 49 206 30 120 40 1333 1072 89 332

July 1 115 36 1252 1187 125 421 4 122 30 983 1309 155 474 5 114 47 1649 1423 202 568 7 118 30 1016 1541 232 602 8 120 shy 24 800 1661 -$ 256 616

11 122 42 1377 1783 298 669 12 120 29 967 1903 327 687 14 116 37 1276 2019 364 721 15 118 40 1356 2137 404 756 18 121 60 1976 2258 464 822 19 119 30 740 2377 494 831 21 125 61 1952 2502 555 887 22 118 25 847 2627 580 883 25 122 16 525 2749 596 867 26 116 15 517 2865 611 853 28 122 28 918 2987 639 856 29 117 11 376 3104 650 838

August 1 120 7 233 3224 657 815 2 119 9 303 3345 666 796 4 120 3 100 3465 669 772 5 118 5 170 3583 674 752 8 114 7 245 3697 681 734

11 123 7 337 3 82 0 688 720 15 118 2 68 3938 690 701 16 113 5 177 4051 695 686 18 98 3 122 4149 698 673 19 119 1 34 4268 699 655 22 112 0 00 4380 699 638 23 115 0 00 4495 699 622 25 120 2 66 4615 701 606 26 112 1 36 4727 702 594 29 116 0 00 4843 702 580 30 11 5 0 00 4958 702 566

Sept 1 115 0 00 5079 702 553 2 112 0 00 5191 702 541

----shy5079 702

50

-----------------------------------------------------------------

------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

June 5 73 0 00 73 0 00 7 126 0 00 199 0 00 8 127 0 00 326 0 bull 0 0

10 11 4 3 105 440 3 27 12 113 2 71 553 5 36 14 119 1 34 672 6 36 15 116 4 138 788 10 51 17 116 3 103 904 13 56 19 118 6 203 1022 19 74 21 118 0 00 1140 19 67 22 117 10 342 1257 29 92 24 116 3 103 1373 32 93 26 119 11 370 1492 43 115 28 11 8 6 203 1610 $ 49 122 29 115 13 452 1725 62 144

July 1 119 8 269 1844 70 152 3 119 17 571 1963 87 177 5 119 13 437 2082 100 192 6 12 0 17 567 2202 117 213 8 121 7 231 2323 124 214

10 11 4 18 632 2437 142 233 12 115 12 417 2552 154 241 13 116 37 1276 2668 191 286 15 117 16 547 2785 207 297 17 11 8 31 1051 290 3 238 328 19 118 18 610 3021 256 339 20 115 29 1009 3136 285 364 22 122 17 557 3258 302 371 24 115 24 835 3373 326 387 26 120 19 633 3493 345 395 27 117 11 376 3610 356 394 29 117 14 479 3727 370 397 31 116 18 621 3843 388 404

August 2 121 9 298 3964 397 401 3 122 17 557 4086 414 405 5 11 8 8 271 4204 422 402 7 128 19 594 4332 441 407 9 257 10 156 4589 451 393

10 125 14 448 4714 464 394 12 13 1 308 4727 465 393 14 107 5 187 4834 470 389 16 122 4 131 4956 474 383 17 123 15 488 5079 489 385 19 118 8 271 5197 497 383 21 112 3 107 5309 500 378 23 120 6 200 5429 506 373 24 115 7 243 5544 513 370

51

-----------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 (Continued)

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

August 26 115 5 174 5657 518 366 28 119 1 34 577 6 519 359 30 119 4 134 5895 523 355 31 117 0 00 6012 523 3 48

Sept 2 123 3 98 613 5 526 343 4 479 2 17 6614 528 319 6 238 1 17 6852 529 309 7 237 0 00 7089 529 298 8 9

238 242

1 2

17

33 7327 7569

clt

530 532

289 281

10 242 3 50 7811 535 274 11 242 0 00 8053 535 266 12 241 2 33 8294 537 259 14 227 3 53 8521 540 253 15 242 0 00 8763 540 246 16 210 1 19 8973 541 241 17 239 2 33 9212 543 236 18 230 0 00 9442 543 230 20 489 0 00 9931 543 219 21 240 2 33 10171 545 214 22 242 0 0 10413 545 209 23 234 0 00 10647 545 205

----shy

10647 545

52

------------------------------------------------------------------------

------

TABLE 6A Unalakleet River Sonar Site Drift Sets5 1 4n Me sh 19 83 bull

Date Time Result

July 19 1405-1413 1 burbot July 23 1040-1055 1 pink caracass July 27 1520-1530 1 coho August 3 1444-1501 4 coho August 22 1930-1937 0 August 23 937-943 1 coho 1 pink carcass August 26 1117-1127 1 coho 3 churn August 31 1018-1034 3 churn

TABLE 6B Unalakleet River Sonar Site Beach Seines 1983

Date Time Distance Result

July 20 1445 120 meters 4 pink 1 churn 13 Dolly Varden 1 whitefish

July 25 1500 120 meters 6 pink 1 churn 1 Dolly Varden 4 whitefish 1 grayling

July 28 1700 120 meters 4 coho 2 pink 2 churn 1 Dolly Varden

August 1 2010 300 meters 4 pink 3 churn 8 Dolly Varden

August 4 1015 130 meters 5 coho 3 pink 3 churn 65 Dolly Varden 3 whitefish 3 grayling

August 24 1110 130 meters 18 coho 2 Dolly Varden 2 grayling

August 29 1715 120 meters 11 coho 1 pink 69 churn 1 Dolly Varden 2 grayling

Seine done at mile 12 Unalakleet River

53

--------------------------------------------------------------------------------------------------

--------------------------------------------------------------------------------------------------

TABLE 7 AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER CATCH SAMPLE SPORT CATCH AND SPAWNING SURVEYS 1983

II

COMBINED 3-2 4-2 4-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 31 646 6702 5 104 5010 8 167 5688 1 21 5900

Female 17 354 8540 o o 1 21 5450 o o

Total 48 1000 7353 5 104 5010 9 188 5661 1 21 5900

~ 11)

5-2 6-2 7-2 7-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 11 229 7382 6 125 8350 0 0 0 0

Female 2 42 7925 12 250 8742 1 21 10650 1 21 8350

Total 13 271 7465 18 375 8611 1 21 10650 1 21 8350

TABLE 8A AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER TEST NET SAMPLE 1983

-----~-------------------------------------------------------------------------------------------------------

gt

COMBINED 4-2 5-2 5-3 6-2 7-2 NO LENGIH NO LENGIH NO LENGIH NO LENGTH NO LENGTH NO LENGTr

8 14 n

Male 3 333 8107 0 1 111 5800 o 0 2 222 9260 0 0 Female 6 667 8295 0 0 1 111 7600 o o 4 444 8310 1 111 8930 Total 9 10 e 0 8232 0 o 2 222 6700 o o 6 667 8627 1 111 8930

If) If)

5 14 Male 19 1000 6298 12 632 5392 4 211 6990 0 o 3 158 8997 0 0 Female o 0 o o o o o o 0 0 0 0 Total 19 1000 6298 12 632 5392 4 211 6990 o o 3 158 8997 0 0

4 n or Smaller Male 6 667 5930 1 111 4660 2 222 6325 3 333 6090 0 o 0 o Female 3 333 8970 o o o o o o 3 333 8970 0 o Total 9 1000 6943 1 111 466 2 222 6325 3 33 3 6090 3 33 3 8970 0 0

TOTAL Hale 28 757 6413 13 351 5336 7 189 6630 3 8 1 6090 5 13 5 9102 o 0 Female 9 243 852 o o 1 27 7600 o o 7 189 8593 1 2 7 8930 Total 37 1000 6925 13 351 5336 8 216 6751 3 8 1 6090 12 324 88 e 5 1 2 7 8930

---------------------------------------------------------------------------------------------------------

---------------------------------------------------------------------------------------------------------

TABLE 8B AGE SEX AND SIZE COMPOSITION OF NORTON SOUND COHO SALMON UNALAKLEET RIVER TEST NET SAMPLE 5 14 AND 5 78 GEAR 1983

COMBINED 3-2 4-3 4-4 5-4 NO LENGIH NO LENGIH NO LENGTH NO LENGIH NO LENGTH

Male 9 900 5489 0 0 9 900 5489 0 0 Female 1 10 bull 0 552 QJ QJ 0 1 10QJ 5520 0 0 Total 10 1000 5492 0 0 10 1000 5492 0 0 725-731

bull LI)Male 15 938 5645 15 938 5645 Female 1 62 575 QJ 1 62 575 QJ Total 16 lQJ0QJ 5651 16 100QJ 5651 81-87

Male 24 545 5668 23 523 5768 1 23 3350 Female 20 455 5631 20 455 5631 0 0 Total 441QJ0QJ 5651 43 977 57 QJ 4 1 23 335 QJ 88-814

Male 7 500 5797 7 500 5797 QJ 0 Female 7 500 5596 6 429 5587 1 71 5650 Total 14 1000 5696 13 929 1 71 5650570 815-821

Male 5 455 5492 5 455 5492 Female 6 545 5552 6 545 5552 Total 11 lQJ00 5525 11 100QJ 5525 822-828

Figure 7 Hourly distribution of counts Unalakleet sonar 1983

(south bank)

14

12

10

c 8 GI U ~

6

July 3-5

~GI

I =~ Q

4

2 0

2 4 6 8 10 12 14 1 6 18 20 22 24

TIme

9

8

7

6

5 c GI U ~ 4 GI

Q

3

2

August 21-23

1

0

2 4 6 8 10 12 14

TIme

16

23

18 20 22 24

Figure 8 Unalakleet River Test Fishing Daily King CPUE in 8 14 mesh 1983

10

9 N

8 shy

7 I 0 c 6E

n

l J I I

0 0 5 c (J 4 co 0

3

2

1

I I

27 1 5 10 15 20 25 1 5 10 15 20 25 31

~ June July

Figure 9 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1983bull

~

middot10

09 U N

I 08 0 c 07E I ()

- 06 E-0 0 05 shy~ () 04 ca - ()

03E I 0 02

01

27 1 5 10 15 2Q 25 1 5 10 15 20 25 31

June July

Figure 10 Unalakleet River Test Fishing Daily Coho CPUE in 5 78 mesh 1983

1

6

5

I 0

NI II I 0 t

E 4

0 0 c 3() cu 0

2

1

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sept U

Figure 11 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1983

200

175

150

I 0 c 125E I ()

E

r-shy-0 I I N 0 100 c ()-as ()

75E I 0

50

25

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sel ber

20

Figure 12 Unalakleet River Test Fishing Daily Pink CPUE in 4 mesh 1983

18

I

0) N

II

16

I ishy

14 J 0 t 12shyE 0 10 0 shys 8 () as

0 6 1 I V 4

2

~ I

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

--

Figure 13 Unalakleet River Test Fishing Cumulat ive Pink CPUE in 4 mesh 1983

10

9 01 N 8

J 0 J 7 E J 0 6 E- 50 ~

amp 4() ca

0 3 E J

0 2

1

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

Figure 14 Unalakleet River Test Fishing Daily CPUE in 5 14 amp 5 78 mesh 1983

14

13shy

12

11

10

9 J 0 8

I z shy-E 7 0 0 shys ~u aI 0

4 I

31

2

1

II

0 C1)I 11

I I I II

bull y AA(net changed to 5 78

AA A 11 I

~ I~ V ~

- I

VI

1 5 10 15 20- 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

cJune July August

Figure 15 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 14 amp 5 78 mesh 1983

It

5

--l C)

net changed to 5 78

~ 4 o

c E (J ~

3E o o c 2 u ~ -(J

E ~ (J 1

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 16 Unalakleet River Test Fishing Catch Proportions 1983

60

55

---- King50

__ Coho 45

P--Q Pink

40 __ Chum

I LU 35J D I 0

30 ICQ 0 25 I

N Cl0 20

c G)

15u G)

D

10

5 A 1 I

I 4 I

I I

3 lt

~

2

I I1 - I bull I

I ~ ~ ~ t -J ~~ - _

r

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 17 Unalakleet Area Temperatures 1983

18

16

14

12

til 10I

u-G) 80 CI) G) G) 6 C) G)

Q 4

2

C) C)

__ Air

0--0 River 2

0

-2

-4

---------~ ~

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August 5e

4

Figure 18 Unalakleet River Turbidity and Depth 1983

__ Secchi Reading

-t ()

II) G)-G)

3

iE 2

1

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August

~ 1 _ ~ r--- I shy I __ I 01 --shy

Figure 19 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1981-83

27 31 5

May

_1981

____ 1982

o 0 1983 11) C)

Changed to 5 78 mesh

I

t

~-~o-~ Q-O--Oolt)-(IQ-----l

--1

_10 15 20 25 30 5 10 15 20 25 31

June July

I I I

~

0 ~

r E ~

CJ shyE 0 0 I

shyr u-cu CJ

E ~

CJ

4

35

30

25

20

15

10

05

Figure 20 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 78 mesh 1981-83

5

4 lI 0

z

E lI 0 3 E-0 0 2 r CJ-cu 0

E lI 1 0

__1981 ~~

~ ___1982

a 01983 5 148 mesh from 65-810

_----shy-- 0 - -- C1) A - _ - ~

~ I

I

II I I I I I

I I

1

~ -

-

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 21 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 mesh- 1981-83

8

70

60

50

40 0

r 30E

0 20E-0 0 10 s= u 8 tV 0 6E 0 4

2

__1981 ____ 1982

_1983

shy--- -- shy--- shy J - -

I

I

C1- J

I

-----l---l ~--~r---------------r--

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 22 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1981-83

_1981

~ __ 1982

~1983

25

00I _ __ _ _ C)~ I __ _ I

I V o 20 rt I I

E I AshyI o E 15-o o z u 10 tU o E I o 5

I

1 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

July August 5

----------------------------------------------------------------

Table 1 Unalakleet River Subsistence King Salmon Index 1983

Number of Number of Date Fishermen Chinook Average

08 02 18 05 05 00 02 58 92 62 72 72 42 28 52 60 62 20 47 50 35 25 15

June 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Totals

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 4 4 4

4

3 1 7 2 2 o 1

23 37 25 29 29 17 11 21 24 25

6 14 15 14 H~

6

322

~

39

---------------------- ---------- --------------------------------------

----------------------------------------------------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983

Daily Proportion Cumu1 Prop Date South North Total of Total Cumulative of Total

64 7 23 30 1313131 313 013131 65 44 187 231 00137 261 01308 66 12 162 174 01305 435 01313 67 8 283 291 1313139 726 01322 68 0000 726 13022 69 3 221 224 013137 950 13029 610 26 245 271 131308 1221 13037 611 56 254 310 131310 1531 131347 612 44 736 780 013 24 2311 13071 613 64 1188 1252 01339 3563 01113 614 59 1752 1811 0056 5374 0166 615 97 844 941 01329 6315 0195 616 165 729 894 0028 7209 0223 617 151 i 604 1755 0054 8964 middot 0277 618 i ll 1524 1635 0051 10599 13328 619 175 2000 2175 0067 12774 13395 620 171 21320 2191 0068 14965 0463 621 220 1613 1833 0057 16798 0520 622 199 2065 2264 0070 19062 0590 623 362 21334 2396 0074 21458 13664 624 876 3403 4279 13133 25737 0797 625 1244 2023 3267- 0101 29004 0898 626 738 1601 2339 0073 31343 0971 627 573 3265 3838 0119 35181 1090 628 547 1868 2415 0075 37596 1165 629 528 4028 4556 0141 42152 1306 630 430 430 0013 42582 1319 71 240 240 01307 42822 1326 72 201 975 1176 0036 43998 1362 73 309 8842 9151 0284 53149 1646 74 475 6385 6860 0213 60009 1859 75 565 3342 3907 0121 63916 1980 76 1377 2094 3471 0108 67387 2088 77 1416 3173 4589 0142 71976 2230 78 1472 1420 2892 0090 74868 2320 79 2071 1452 3523 01113 78391 2430 710 3318 2434 5752 0178 84143 2608 711 2673 2866 5539 13172 89682 2780 712 1665 1747 3412 13106 93094 2886 713 21317 1951 3968 13123 97062 3009 714 2991 2664 5655 0175 102717 3184 715 2646 2548 5194 13161 107911 3345 716 2488 2886 5374 0167 113285 3512 717 1585 4063 5648 0175 118933 3687 718 3559 9326 12885 0400 131818 4087 719 2948 2398 5346 13166 137164 4253 720 1640 3330 4970 0154 142134 4407 721 2416 6420 8836 0274 150970 4681 722 3298 3298 0102 154268 4783 723 5007 5007 0155 159275 4938

40

--------------------------------------------------------------------

--------------------------------------------------------------------

-----------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983 (Continued)

Daily Proportion Cum Prop Date South North Total of Total Cumu1at i ve of Total

724 4005 7804 11809 0366 171084 5304 725 2453 3392 5845 0181 176929 5485 726 2166 12094 14260 0442 191189 5927 727 1914 4472 6386 0198 197575 6125 728 1603 3463 5066 0157 202641 6282 729 1251 1914 3165 0098 205806 6380 730 1710 2495 4205 en30 210011 6510 731 2542 1887 4429 0137 214440 6647 81 4479 2271 6750 0209 221190 6856 82 1103 1806 2909 0091 224099 6947 83 1719 942 2661 0083 226760 bull 7030 84 1519 2557 4076 0126 230836 7156 85 1259 1113 2372 0074 233208 7230 86 940 2189 3129 0097 236337 7327 87 1467 4354 5821 0180 242158 7507 88 2318 1584 3902 0121 246060 7628 89 2098 1505 3603 0112 249663 7740 810 2629 1517 4146 bull 0129 253809 7869 811 3753 1091 4844 0150 258653 8019 812 1489 523 2012 0062 260665 8081 813 744 353 1097 0034 261762 8386 814 981 981 bull 0030 262743 8145 815 2324 2324 0072 265067 8217 816 2638 2638 0082 267705 8299 817 2073 731 2804 0087 270509 8115 818 2244 675 2919 0091 273428 8477 819 3240 696 3936 0122 277364 8599 820 2363 503 2866 0089 280230 8688 821 6789 1111 7900 0245 288130 8933 822 6489 563 7052 0219 295182 9152 823 5077 298 5375 0167 300557 9319 824 2616 298 2914 0090 303471 9409 825 3933 412 4345 0135 307816 9544 826 1393 554 1947 0060 309763 9604 827 1203 463 1666 0052 311429 9656 828 1197 542 1739 0054 313168 9710 829 1244 221 1465 0045 314633 9755 830 1011 199 1210 0038 315843 9793 831 718 214 932 0029 316775 9822 91 1324 318 1642 0052 318417 9874 92 1362 307 1669 0052 320086 9926 93 1146 314 1460 0045 321546 9971 94 652 296 948 bull 0029 322494 10000

148465 174029 322494 10000

41

----------------------------------------------------------------------

-------------------------------------------------------------------- --

------

TABLE 3A Unalakleet River Species Apportionment by Test Period King Salmon 1983

3-Day App Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 76 0272 76 0272

69-612N 28 0100 104 0372

612N-615 461 1652 565 2024

616-619N 419 1502 984 3526

619N-622 170 0609 1154 4135

623-626N 722 2588 1876 6723

626N-629 264 0946 2140 7669

630-73N 103 0639 2243 8038

73N-76 188 0674 2431 8712

77-710N 0 0000 2431 8712

710N-713 0 0000 2431 8712

714-717N 267 0957 2698 9969

717N-720 0 0000 2698 9669

721-724N 92 0331 2790 1 0000

724N-727 0 0000 2790 10000

728-731N 0 0000 2790 1 0000

731N-83 0 0000 2790 1 0000

2790 10000

42

Dates

714-717N

717N-720

721-724N

724N-727

728-731N

731N-83

84-87N

87N-810

811-814N

814N-817

818-821N

821N-824

825-828N

828N-831

91-94

TABLE 3B Unalakleet River Species Apportionment by Test Period Coho Salmon

3-Day Count

583

338

436

550

2650

1174

793

1435

5074

1280

435

2265

171H3

1983

Proportion of Season Total

0000

0000

0000

0343

0199

0256

0323

1558

0690

0466

0843

2983

0752

0256

1331

Cumulative Count

583

921

1357

1907

4557

5731

6524

7959

13033

14313

14748

17013

Cumulative Proportion

0000

0000

0000

0343

0542

0798

1121

2679

3369

3835

4678

7661

8413

8669

10000

43

------------------------------------------------------------------

------------------------------------------------------------------

----- ------

TABLE 3C Unalakleet River Species Apportionment by Test Period Pink Salmon 1983

3-Day P roport ion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 0 0000

6l2N-615 0 0000

616-6l9N 97 0012

6l9N-622 332 0036

623-626N 1245 0136

626N-629 6624 0721

630-73N 3699 0403

73N-76 10762 1171

77-7l0N 7704 0838

710N-7l3 8529 0928

714-717N 9771 1063

717N-720 13845 1507

721-724N 11361 1236

724N-727 6544 0712

728-731N 3545 0386

731N-83 1628 0177

84-87N 1224 0133

87N-810 1777 0193

811-814N 802 0087

814N-817 561 0061

818-821N 533 0058

821N-824 8313 13091

825-828N 468 0051

828N-831 0 0000

91-94 0 0000

91881 10000

0 0000

0 0000

0 0000

97 0012

429 0048

1674 0184

8298 0905

11997 1308

22759 2479

30463 3317

38992 4245

48763 5308

62608 6815

73969 8051

80513 8763

84058 9149

85686 9326

86910 9459

88687 9652

89489 9739

90050 9800

90583 9858

91413 9949

91881 10000

91881 10000

91881 1 0000 44

------------------------------------------------------------------

------------ ------------------------------------------------------

----- ------

TABLE 3D Unalakleet River Species Apportionment by Test Period Chum Salmon 1983

3-Day Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 100 0017

612N-615 268 0046

616-619N 838 0144

619N-622 1180 0202

623-626N 2744 0471

626N-629 1569 0270

630-73N 796 0137

73N-76 2972 0510

77-710N 2068 0355

710N-713 2622 0450

714-717N 4133 0710

717N-720 5596 0960

721-724N 4978 0854

724N-727 8974 1540

728-731N 2241 0385

731N-83 2079 ~0357

84-87N 3009 0516

87N-810 2432 0417

811-814N 937 0161

814N-817 454 0078

818-821N 2584 0443

821N-824 2739 0470

825-828N 1783 0306

828N-831 765 0131

91-94 412 0070

58273 10000 45

0 0000

100 0017

368 0063

1206 0207

2386 0409

5130 0880

6699 1150

7495 1287 f

10467 1797

12535 2152

15157 2602

19290 3312

24886 4272

29864 5216

38838 6666

41079 7051

43158 7408

46167 7924

48559 8341

49536 8502

49990 8580

52574 9023

55313 9493

57096 9799

57861 9930

58273 1 0000

-------------------------------------------------------------

------------------------- ------------------------------------

TABLE 4 Unalakleet River Test Net Proportions by Sample Perio-d 1983 ( Selective CPUE)

Dates Chinook Coho Pink Chum Misc

64-68 105 00 00 895

69-612N 24 00 83 893

612N-615 1C~ 5 00 61 834

616-619N 78 18 156 748

619N-622 23 45 160 772

623-626N 65 112 247 576

626N-629 22 553 131 294

630-73N 16 576 124 284

73N-76 10 572 158 260

77-710N 00 555 149 296

710N-713 00 540 166 294

714-717N 14 00 513 217 256

717N-720 00 00 532 215 253

721-724N 04 00 493 216 287

724N-727 00 18 202 277 503

728-731N 00 23 242 153 582

731N-83 00 30 112 143 715

84-87N 44 98 241 617

87N-810 182 122 167 529

811-814N 139 95 111 655

814N-B17 96 68 55 7B1

B18-B21N 105 39 1B9 667

821N-824 263 43 142 552

825-B28N 145 53 202 600

828N-831 97 00 171 732

91-94 396 00 72 532

46

--------

--------

TABLE 4 Una1ak1et River Test Net Proportions 1983 ( Selective CPUE) (Continued)

Comparative Apportionment

Species Apportionment

Chinook 2790 Coho 17013 Pink 91881 Churn 58273

------shySubtotal 169957

Misc Species 152537 ------shy

Total 322494

Substrate Comparison -------------------shy

Bank Counts -----shy

South 148465 North 174029

------shy

Total 322494

Percent of Total Counts

09 53

285 181

5408

472

1000

Percent

460 540

1000

47

-------------------------------------------------------------------

TABLE 5A Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

May 27 28

21 5 482

13 13

1313

1313 21 5 697

13 13

1313

1313 30 240 0 013 937 0 00 31 246 2 41 1183 2 08

June 1 237 0 00 1420 2 07 2 3

256 585

13 13

013 bull 13 13

1676 2 261

2 2

6bull 13 4

5 6 8

160 120 middot 125

13 1

13 42 130

2 421 2541 2666

~ 2 3 3

bull 13 4 136 136

9 122 0 130 2788 3 05 11 117 00 2905 3 05 12 126 13 00 3031 3 05 13 117 1 43 3148 4 06 15 118 0 013 3266 4 136 16 116 1 43 3382 5 138 18 240 13 130 3622 5 07 19 121 0 00 3743 5 07 20 116 0 00 3859 5 136 22 118 1 42 3977 6 138 23 119 1 42 4196 7 08 25 240 0 013 4336 7 138 26 119 13 1313 4455 7 138 27 119 13 1313 4574 7 138 29 1213 13 130 4694 7 137 313 1213 13 00 4814 7 07

July 2 238 0 1313 51352 7 07 3 118 13 013 51713 7 07 4 118 1 42 5288 8 138 6 122 0 00 5410 8 07 7 116 13 00 5526 8 07

10 126 0 1313 5652 8 07 11 119 0 013 5771 8 07 13 116 13 130 5887 8 07 14 119 2 84 6006 10 07 17 122 0 00 6128 10 07 18 112 0 1313 6240 10 136 20 119 13 00 6359 10 06 21 112 0 013 6471 10 06

6471 10

48

------------------------------------------------------------------

------------------------------------------------------------------

TABLE 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983

Cum Cum Date Hours Catch CPUE Hours Catch CPUE

July 24 26

115 120 0 00

115 235

0 0

00

00 27 117 4 00 352 0 00 29 117 0 137 469 4 34 31 116 3 103 585 7 48

August 2 122 0 00 706 7 40 3 122 2 66 828 9 43 5 118 1 34 946 10 42 7 128 14 437 1074 24 89 9 257 14 218 1331 38 114

10 125 21 672 1456 59 162 12 13 middot- 0 00 1469 x 59 161 14 10 7 12 449 1576 71 180 16 122 2 66 1698 73 172 17 123 6 196 1821 79 174 19 118 1 34 1939 80 165 21 112 6 214 2051 86 168 23 120 3 100 217 1 89 164 24 115 2 70 2286 91 159 26 115 5 174 2401 96 160 28 119 0 00 2520 96 152 30 119 4 1 34 2639 100 152 31 117 1 34 2756 101 147

Sept 2 123 5 33 2879 106 147 4 479 15 125 3358 121 144 6 238 11 185 3596 132 147 7 237 5 84 3833 137 143 8 238 6 1 01 4071 143 141 9 242 10 1 65 4313 153 142

10 242 3 50 4555 156 137 11 242 2 33 4797 158 132 12 241 8 133 5038 166 132 14 227 14 247 5265 180 137 15 242 9 149 5507 189 137 16 210 3 57 5717 192 134 17 239 2 33 5956 194 130 18 230 2 35 6186 196 127 20 489 4 33 6675 200 120 21 24 3 50 6915 203 117 22 242 0 00 7157 203 113 23 234 1 17 7391 204 110

----shy

7391 204

Mesh size = 5 14 from 724 to 810

49

------------------------------------------------------------------

TABLE 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE ------~-----------------------------------------------------------June 16 122 1 33 122 1 33

17 118 0 bull 0 0 240 1 17 20 120 2 67 360 3 33 21 118 0 00 478 3 25 23 119 2 67 597 5 34 24 119 3 102 716 8 45 27 116 19 655 832 27 130 28 120 22 733 952 49 206 30 120 40 1333 1072 89 332

July 1 115 36 1252 1187 125 421 4 122 30 983 1309 155 474 5 114 47 1649 1423 202 568 7 118 30 1016 1541 232 602 8 120 shy 24 800 1661 -$ 256 616

11 122 42 1377 1783 298 669 12 120 29 967 1903 327 687 14 116 37 1276 2019 364 721 15 118 40 1356 2137 404 756 18 121 60 1976 2258 464 822 19 119 30 740 2377 494 831 21 125 61 1952 2502 555 887 22 118 25 847 2627 580 883 25 122 16 525 2749 596 867 26 116 15 517 2865 611 853 28 122 28 918 2987 639 856 29 117 11 376 3104 650 838

August 1 120 7 233 3224 657 815 2 119 9 303 3345 666 796 4 120 3 100 3465 669 772 5 118 5 170 3583 674 752 8 114 7 245 3697 681 734

11 123 7 337 3 82 0 688 720 15 118 2 68 3938 690 701 16 113 5 177 4051 695 686 18 98 3 122 4149 698 673 19 119 1 34 4268 699 655 22 112 0 00 4380 699 638 23 115 0 00 4495 699 622 25 120 2 66 4615 701 606 26 112 1 36 4727 702 594 29 116 0 00 4843 702 580 30 11 5 0 00 4958 702 566

Sept 1 115 0 00 5079 702 553 2 112 0 00 5191 702 541

----shy5079 702

50

-----------------------------------------------------------------

------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

June 5 73 0 00 73 0 00 7 126 0 00 199 0 00 8 127 0 00 326 0 bull 0 0

10 11 4 3 105 440 3 27 12 113 2 71 553 5 36 14 119 1 34 672 6 36 15 116 4 138 788 10 51 17 116 3 103 904 13 56 19 118 6 203 1022 19 74 21 118 0 00 1140 19 67 22 117 10 342 1257 29 92 24 116 3 103 1373 32 93 26 119 11 370 1492 43 115 28 11 8 6 203 1610 $ 49 122 29 115 13 452 1725 62 144

July 1 119 8 269 1844 70 152 3 119 17 571 1963 87 177 5 119 13 437 2082 100 192 6 12 0 17 567 2202 117 213 8 121 7 231 2323 124 214

10 11 4 18 632 2437 142 233 12 115 12 417 2552 154 241 13 116 37 1276 2668 191 286 15 117 16 547 2785 207 297 17 11 8 31 1051 290 3 238 328 19 118 18 610 3021 256 339 20 115 29 1009 3136 285 364 22 122 17 557 3258 302 371 24 115 24 835 3373 326 387 26 120 19 633 3493 345 395 27 117 11 376 3610 356 394 29 117 14 479 3727 370 397 31 116 18 621 3843 388 404

August 2 121 9 298 3964 397 401 3 122 17 557 4086 414 405 5 11 8 8 271 4204 422 402 7 128 19 594 4332 441 407 9 257 10 156 4589 451 393

10 125 14 448 4714 464 394 12 13 1 308 4727 465 393 14 107 5 187 4834 470 389 16 122 4 131 4956 474 383 17 123 15 488 5079 489 385 19 118 8 271 5197 497 383 21 112 3 107 5309 500 378 23 120 6 200 5429 506 373 24 115 7 243 5544 513 370

51

-----------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 (Continued)

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

August 26 115 5 174 5657 518 366 28 119 1 34 577 6 519 359 30 119 4 134 5895 523 355 31 117 0 00 6012 523 3 48

Sept 2 123 3 98 613 5 526 343 4 479 2 17 6614 528 319 6 238 1 17 6852 529 309 7 237 0 00 7089 529 298 8 9

238 242

1 2

17

33 7327 7569

clt

530 532

289 281

10 242 3 50 7811 535 274 11 242 0 00 8053 535 266 12 241 2 33 8294 537 259 14 227 3 53 8521 540 253 15 242 0 00 8763 540 246 16 210 1 19 8973 541 241 17 239 2 33 9212 543 236 18 230 0 00 9442 543 230 20 489 0 00 9931 543 219 21 240 2 33 10171 545 214 22 242 0 0 10413 545 209 23 234 0 00 10647 545 205

----shy

10647 545

52

------------------------------------------------------------------------

------

TABLE 6A Unalakleet River Sonar Site Drift Sets5 1 4n Me sh 19 83 bull

Date Time Result

July 19 1405-1413 1 burbot July 23 1040-1055 1 pink caracass July 27 1520-1530 1 coho August 3 1444-1501 4 coho August 22 1930-1937 0 August 23 937-943 1 coho 1 pink carcass August 26 1117-1127 1 coho 3 churn August 31 1018-1034 3 churn

TABLE 6B Unalakleet River Sonar Site Beach Seines 1983

Date Time Distance Result

July 20 1445 120 meters 4 pink 1 churn 13 Dolly Varden 1 whitefish

July 25 1500 120 meters 6 pink 1 churn 1 Dolly Varden 4 whitefish 1 grayling

July 28 1700 120 meters 4 coho 2 pink 2 churn 1 Dolly Varden

August 1 2010 300 meters 4 pink 3 churn 8 Dolly Varden

August 4 1015 130 meters 5 coho 3 pink 3 churn 65 Dolly Varden 3 whitefish 3 grayling

August 24 1110 130 meters 18 coho 2 Dolly Varden 2 grayling

August 29 1715 120 meters 11 coho 1 pink 69 churn 1 Dolly Varden 2 grayling

Seine done at mile 12 Unalakleet River

53

--------------------------------------------------------------------------------------------------

--------------------------------------------------------------------------------------------------

TABLE 7 AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER CATCH SAMPLE SPORT CATCH AND SPAWNING SURVEYS 1983

II

COMBINED 3-2 4-2 4-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 31 646 6702 5 104 5010 8 167 5688 1 21 5900

Female 17 354 8540 o o 1 21 5450 o o

Total 48 1000 7353 5 104 5010 9 188 5661 1 21 5900

~ 11)

5-2 6-2 7-2 7-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 11 229 7382 6 125 8350 0 0 0 0

Female 2 42 7925 12 250 8742 1 21 10650 1 21 8350

Total 13 271 7465 18 375 8611 1 21 10650 1 21 8350

TABLE 8A AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER TEST NET SAMPLE 1983

-----~-------------------------------------------------------------------------------------------------------

gt

COMBINED 4-2 5-2 5-3 6-2 7-2 NO LENGIH NO LENGIH NO LENGIH NO LENGTH NO LENGTH NO LENGTr

8 14 n

Male 3 333 8107 0 1 111 5800 o 0 2 222 9260 0 0 Female 6 667 8295 0 0 1 111 7600 o o 4 444 8310 1 111 8930 Total 9 10 e 0 8232 0 o 2 222 6700 o o 6 667 8627 1 111 8930

If) If)

5 14 Male 19 1000 6298 12 632 5392 4 211 6990 0 o 3 158 8997 0 0 Female o 0 o o o o o o 0 0 0 0 Total 19 1000 6298 12 632 5392 4 211 6990 o o 3 158 8997 0 0

4 n or Smaller Male 6 667 5930 1 111 4660 2 222 6325 3 333 6090 0 o 0 o Female 3 333 8970 o o o o o o 3 333 8970 0 o Total 9 1000 6943 1 111 466 2 222 6325 3 33 3 6090 3 33 3 8970 0 0

TOTAL Hale 28 757 6413 13 351 5336 7 189 6630 3 8 1 6090 5 13 5 9102 o 0 Female 9 243 852 o o 1 27 7600 o o 7 189 8593 1 2 7 8930 Total 37 1000 6925 13 351 5336 8 216 6751 3 8 1 6090 12 324 88 e 5 1 2 7 8930

---------------------------------------------------------------------------------------------------------

---------------------------------------------------------------------------------------------------------

TABLE 8B AGE SEX AND SIZE COMPOSITION OF NORTON SOUND COHO SALMON UNALAKLEET RIVER TEST NET SAMPLE 5 14 AND 5 78 GEAR 1983

COMBINED 3-2 4-3 4-4 5-4 NO LENGIH NO LENGIH NO LENGTH NO LENGIH NO LENGTH

Male 9 900 5489 0 0 9 900 5489 0 0 Female 1 10 bull 0 552 QJ QJ 0 1 10QJ 5520 0 0 Total 10 1000 5492 0 0 10 1000 5492 0 0 725-731

bull LI)Male 15 938 5645 15 938 5645 Female 1 62 575 QJ 1 62 575 QJ Total 16 lQJ0QJ 5651 16 100QJ 5651 81-87

Male 24 545 5668 23 523 5768 1 23 3350 Female 20 455 5631 20 455 5631 0 0 Total 441QJ0QJ 5651 43 977 57 QJ 4 1 23 335 QJ 88-814

Male 7 500 5797 7 500 5797 QJ 0 Female 7 500 5596 6 429 5587 1 71 5650 Total 14 1000 5696 13 929 1 71 5650570 815-821

Male 5 455 5492 5 455 5492 Female 6 545 5552 6 545 5552 Total 11 lQJ00 5525 11 100QJ 5525 822-828

Figure 8 Unalakleet River Test Fishing Daily King CPUE in 8 14 mesh 1983

10

9 N

8 shy

7 I 0 c 6E

n

l J I I

0 0 5 c (J 4 co 0

3

2

1

I I

27 1 5 10 15 20 25 1 5 10 15 20 25 31

~ June July

Figure 9 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1983bull

~

middot10

09 U N

I 08 0 c 07E I ()

- 06 E-0 0 05 shy~ () 04 ca - ()

03E I 0 02

01

27 1 5 10 15 2Q 25 1 5 10 15 20 25 31

June July

Figure 10 Unalakleet River Test Fishing Daily Coho CPUE in 5 78 mesh 1983

1

6

5

I 0

NI II I 0 t

E 4

0 0 c 3() cu 0

2

1

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sept U

Figure 11 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1983

200

175

150

I 0 c 125E I ()

E

r-shy-0 I I N 0 100 c ()-as ()

75E I 0

50

25

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sel ber

20

Figure 12 Unalakleet River Test Fishing Daily Pink CPUE in 4 mesh 1983

18

I

0) N

II

16

I ishy

14 J 0 t 12shyE 0 10 0 shys 8 () as

0 6 1 I V 4

2

~ I

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

--

Figure 13 Unalakleet River Test Fishing Cumulat ive Pink CPUE in 4 mesh 1983

10

9 01 N 8

J 0 J 7 E J 0 6 E- 50 ~

amp 4() ca

0 3 E J

0 2

1

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

Figure 14 Unalakleet River Test Fishing Daily CPUE in 5 14 amp 5 78 mesh 1983

14

13shy

12

11

10

9 J 0 8

I z shy-E 7 0 0 shys ~u aI 0

4 I

31

2

1

II

0 C1)I 11

I I I II

bull y AA(net changed to 5 78

AA A 11 I

~ I~ V ~

- I

VI

1 5 10 15 20- 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

cJune July August

Figure 15 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 14 amp 5 78 mesh 1983

It

5

--l C)

net changed to 5 78

~ 4 o

c E (J ~

3E o o c 2 u ~ -(J

E ~ (J 1

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 16 Unalakleet River Test Fishing Catch Proportions 1983

60

55

---- King50

__ Coho 45

P--Q Pink

40 __ Chum

I LU 35J D I 0

30 ICQ 0 25 I

N Cl0 20

c G)

15u G)

D

10

5 A 1 I

I 4 I

I I

3 lt

~

2

I I1 - I bull I

I ~ ~ ~ t -J ~~ - _

r

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 17 Unalakleet Area Temperatures 1983

18

16

14

12

til 10I

u-G) 80 CI) G) G) 6 C) G)

Q 4

2

C) C)

__ Air

0--0 River 2

0

-2

-4

---------~ ~

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August 5e

4

Figure 18 Unalakleet River Turbidity and Depth 1983

__ Secchi Reading

-t ()

II) G)-G)

3

iE 2

1

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August

~ 1 _ ~ r--- I shy I __ I 01 --shy

Figure 19 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1981-83

27 31 5

May

_1981

____ 1982

o 0 1983 11) C)

Changed to 5 78 mesh

I

t

~-~o-~ Q-O--Oolt)-(IQ-----l

--1

_10 15 20 25 30 5 10 15 20 25 31

June July

I I I

~

0 ~

r E ~

CJ shyE 0 0 I

shyr u-cu CJ

E ~

CJ

4

35

30

25

20

15

10

05

Figure 20 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 78 mesh 1981-83

5

4 lI 0

z

E lI 0 3 E-0 0 2 r CJ-cu 0

E lI 1 0

__1981 ~~

~ ___1982

a 01983 5 148 mesh from 65-810

_----shy-- 0 - -- C1) A - _ - ~

~ I

I

II I I I I I

I I

1

~ -

-

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 21 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 mesh- 1981-83

8

70

60

50

40 0

r 30E

0 20E-0 0 10 s= u 8 tV 0 6E 0 4

2

__1981 ____ 1982

_1983

shy--- -- shy--- shy J - -

I

I

C1- J

I

-----l---l ~--~r---------------r--

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 22 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1981-83

_1981

~ __ 1982

~1983

25

00I _ __ _ _ C)~ I __ _ I

I V o 20 rt I I

E I AshyI o E 15-o o z u 10 tU o E I o 5

I

1 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

July August 5

----------------------------------------------------------------

Table 1 Unalakleet River Subsistence King Salmon Index 1983

Number of Number of Date Fishermen Chinook Average

08 02 18 05 05 00 02 58 92 62 72 72 42 28 52 60 62 20 47 50 35 25 15

June 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Totals

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 4 4 4

4

3 1 7 2 2 o 1

23 37 25 29 29 17 11 21 24 25

6 14 15 14 H~

6

322

~

39

---------------------- ---------- --------------------------------------

----------------------------------------------------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983

Daily Proportion Cumu1 Prop Date South North Total of Total Cumulative of Total

64 7 23 30 1313131 313 013131 65 44 187 231 00137 261 01308 66 12 162 174 01305 435 01313 67 8 283 291 1313139 726 01322 68 0000 726 13022 69 3 221 224 013137 950 13029 610 26 245 271 131308 1221 13037 611 56 254 310 131310 1531 131347 612 44 736 780 013 24 2311 13071 613 64 1188 1252 01339 3563 01113 614 59 1752 1811 0056 5374 0166 615 97 844 941 01329 6315 0195 616 165 729 894 0028 7209 0223 617 151 i 604 1755 0054 8964 middot 0277 618 i ll 1524 1635 0051 10599 13328 619 175 2000 2175 0067 12774 13395 620 171 21320 2191 0068 14965 0463 621 220 1613 1833 0057 16798 0520 622 199 2065 2264 0070 19062 0590 623 362 21334 2396 0074 21458 13664 624 876 3403 4279 13133 25737 0797 625 1244 2023 3267- 0101 29004 0898 626 738 1601 2339 0073 31343 0971 627 573 3265 3838 0119 35181 1090 628 547 1868 2415 0075 37596 1165 629 528 4028 4556 0141 42152 1306 630 430 430 0013 42582 1319 71 240 240 01307 42822 1326 72 201 975 1176 0036 43998 1362 73 309 8842 9151 0284 53149 1646 74 475 6385 6860 0213 60009 1859 75 565 3342 3907 0121 63916 1980 76 1377 2094 3471 0108 67387 2088 77 1416 3173 4589 0142 71976 2230 78 1472 1420 2892 0090 74868 2320 79 2071 1452 3523 01113 78391 2430 710 3318 2434 5752 0178 84143 2608 711 2673 2866 5539 13172 89682 2780 712 1665 1747 3412 13106 93094 2886 713 21317 1951 3968 13123 97062 3009 714 2991 2664 5655 0175 102717 3184 715 2646 2548 5194 13161 107911 3345 716 2488 2886 5374 0167 113285 3512 717 1585 4063 5648 0175 118933 3687 718 3559 9326 12885 0400 131818 4087 719 2948 2398 5346 13166 137164 4253 720 1640 3330 4970 0154 142134 4407 721 2416 6420 8836 0274 150970 4681 722 3298 3298 0102 154268 4783 723 5007 5007 0155 159275 4938

40

--------------------------------------------------------------------

--------------------------------------------------------------------

-----------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983 (Continued)

Daily Proportion Cum Prop Date South North Total of Total Cumu1at i ve of Total

724 4005 7804 11809 0366 171084 5304 725 2453 3392 5845 0181 176929 5485 726 2166 12094 14260 0442 191189 5927 727 1914 4472 6386 0198 197575 6125 728 1603 3463 5066 0157 202641 6282 729 1251 1914 3165 0098 205806 6380 730 1710 2495 4205 en30 210011 6510 731 2542 1887 4429 0137 214440 6647 81 4479 2271 6750 0209 221190 6856 82 1103 1806 2909 0091 224099 6947 83 1719 942 2661 0083 226760 bull 7030 84 1519 2557 4076 0126 230836 7156 85 1259 1113 2372 0074 233208 7230 86 940 2189 3129 0097 236337 7327 87 1467 4354 5821 0180 242158 7507 88 2318 1584 3902 0121 246060 7628 89 2098 1505 3603 0112 249663 7740 810 2629 1517 4146 bull 0129 253809 7869 811 3753 1091 4844 0150 258653 8019 812 1489 523 2012 0062 260665 8081 813 744 353 1097 0034 261762 8386 814 981 981 bull 0030 262743 8145 815 2324 2324 0072 265067 8217 816 2638 2638 0082 267705 8299 817 2073 731 2804 0087 270509 8115 818 2244 675 2919 0091 273428 8477 819 3240 696 3936 0122 277364 8599 820 2363 503 2866 0089 280230 8688 821 6789 1111 7900 0245 288130 8933 822 6489 563 7052 0219 295182 9152 823 5077 298 5375 0167 300557 9319 824 2616 298 2914 0090 303471 9409 825 3933 412 4345 0135 307816 9544 826 1393 554 1947 0060 309763 9604 827 1203 463 1666 0052 311429 9656 828 1197 542 1739 0054 313168 9710 829 1244 221 1465 0045 314633 9755 830 1011 199 1210 0038 315843 9793 831 718 214 932 0029 316775 9822 91 1324 318 1642 0052 318417 9874 92 1362 307 1669 0052 320086 9926 93 1146 314 1460 0045 321546 9971 94 652 296 948 bull 0029 322494 10000

148465 174029 322494 10000

41

----------------------------------------------------------------------

-------------------------------------------------------------------- --

------

TABLE 3A Unalakleet River Species Apportionment by Test Period King Salmon 1983

3-Day App Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 76 0272 76 0272

69-612N 28 0100 104 0372

612N-615 461 1652 565 2024

616-619N 419 1502 984 3526

619N-622 170 0609 1154 4135

623-626N 722 2588 1876 6723

626N-629 264 0946 2140 7669

630-73N 103 0639 2243 8038

73N-76 188 0674 2431 8712

77-710N 0 0000 2431 8712

710N-713 0 0000 2431 8712

714-717N 267 0957 2698 9969

717N-720 0 0000 2698 9669

721-724N 92 0331 2790 1 0000

724N-727 0 0000 2790 10000

728-731N 0 0000 2790 1 0000

731N-83 0 0000 2790 1 0000

2790 10000

42

Dates

714-717N

717N-720

721-724N

724N-727

728-731N

731N-83

84-87N

87N-810

811-814N

814N-817

818-821N

821N-824

825-828N

828N-831

91-94

TABLE 3B Unalakleet River Species Apportionment by Test Period Coho Salmon

3-Day Count

583

338

436

550

2650

1174

793

1435

5074

1280

435

2265

171H3

1983

Proportion of Season Total

0000

0000

0000

0343

0199

0256

0323

1558

0690

0466

0843

2983

0752

0256

1331

Cumulative Count

583

921

1357

1907

4557

5731

6524

7959

13033

14313

14748

17013

Cumulative Proportion

0000

0000

0000

0343

0542

0798

1121

2679

3369

3835

4678

7661

8413

8669

10000

43

------------------------------------------------------------------

------------------------------------------------------------------

----- ------

TABLE 3C Unalakleet River Species Apportionment by Test Period Pink Salmon 1983

3-Day P roport ion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 0 0000

6l2N-615 0 0000

616-6l9N 97 0012

6l9N-622 332 0036

623-626N 1245 0136

626N-629 6624 0721

630-73N 3699 0403

73N-76 10762 1171

77-7l0N 7704 0838

710N-7l3 8529 0928

714-717N 9771 1063

717N-720 13845 1507

721-724N 11361 1236

724N-727 6544 0712

728-731N 3545 0386

731N-83 1628 0177

84-87N 1224 0133

87N-810 1777 0193

811-814N 802 0087

814N-817 561 0061

818-821N 533 0058

821N-824 8313 13091

825-828N 468 0051

828N-831 0 0000

91-94 0 0000

91881 10000

0 0000

0 0000

0 0000

97 0012

429 0048

1674 0184

8298 0905

11997 1308

22759 2479

30463 3317

38992 4245

48763 5308

62608 6815

73969 8051

80513 8763

84058 9149

85686 9326

86910 9459

88687 9652

89489 9739

90050 9800

90583 9858

91413 9949

91881 10000

91881 10000

91881 1 0000 44

------------------------------------------------------------------

------------ ------------------------------------------------------

----- ------

TABLE 3D Unalakleet River Species Apportionment by Test Period Chum Salmon 1983

3-Day Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 100 0017

612N-615 268 0046

616-619N 838 0144

619N-622 1180 0202

623-626N 2744 0471

626N-629 1569 0270

630-73N 796 0137

73N-76 2972 0510

77-710N 2068 0355

710N-713 2622 0450

714-717N 4133 0710

717N-720 5596 0960

721-724N 4978 0854

724N-727 8974 1540

728-731N 2241 0385

731N-83 2079 ~0357

84-87N 3009 0516

87N-810 2432 0417

811-814N 937 0161

814N-817 454 0078

818-821N 2584 0443

821N-824 2739 0470

825-828N 1783 0306

828N-831 765 0131

91-94 412 0070

58273 10000 45

0 0000

100 0017

368 0063

1206 0207

2386 0409

5130 0880

6699 1150

7495 1287 f

10467 1797

12535 2152

15157 2602

19290 3312

24886 4272

29864 5216

38838 6666

41079 7051

43158 7408

46167 7924

48559 8341

49536 8502

49990 8580

52574 9023

55313 9493

57096 9799

57861 9930

58273 1 0000

-------------------------------------------------------------

------------------------- ------------------------------------

TABLE 4 Unalakleet River Test Net Proportions by Sample Perio-d 1983 ( Selective CPUE)

Dates Chinook Coho Pink Chum Misc

64-68 105 00 00 895

69-612N 24 00 83 893

612N-615 1C~ 5 00 61 834

616-619N 78 18 156 748

619N-622 23 45 160 772

623-626N 65 112 247 576

626N-629 22 553 131 294

630-73N 16 576 124 284

73N-76 10 572 158 260

77-710N 00 555 149 296

710N-713 00 540 166 294

714-717N 14 00 513 217 256

717N-720 00 00 532 215 253

721-724N 04 00 493 216 287

724N-727 00 18 202 277 503

728-731N 00 23 242 153 582

731N-83 00 30 112 143 715

84-87N 44 98 241 617

87N-810 182 122 167 529

811-814N 139 95 111 655

814N-B17 96 68 55 7B1

B18-B21N 105 39 1B9 667

821N-824 263 43 142 552

825-B28N 145 53 202 600

828N-831 97 00 171 732

91-94 396 00 72 532

46

--------

--------

TABLE 4 Una1ak1et River Test Net Proportions 1983 ( Selective CPUE) (Continued)

Comparative Apportionment

Species Apportionment

Chinook 2790 Coho 17013 Pink 91881 Churn 58273

------shySubtotal 169957

Misc Species 152537 ------shy

Total 322494

Substrate Comparison -------------------shy

Bank Counts -----shy

South 148465 North 174029

------shy

Total 322494

Percent of Total Counts

09 53

285 181

5408

472

1000

Percent

460 540

1000

47

-------------------------------------------------------------------

TABLE 5A Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

May 27 28

21 5 482

13 13

1313

1313 21 5 697

13 13

1313

1313 30 240 0 013 937 0 00 31 246 2 41 1183 2 08

June 1 237 0 00 1420 2 07 2 3

256 585

13 13

013 bull 13 13

1676 2 261

2 2

6bull 13 4

5 6 8

160 120 middot 125

13 1

13 42 130

2 421 2541 2666

~ 2 3 3

bull 13 4 136 136

9 122 0 130 2788 3 05 11 117 00 2905 3 05 12 126 13 00 3031 3 05 13 117 1 43 3148 4 06 15 118 0 013 3266 4 136 16 116 1 43 3382 5 138 18 240 13 130 3622 5 07 19 121 0 00 3743 5 07 20 116 0 00 3859 5 136 22 118 1 42 3977 6 138 23 119 1 42 4196 7 08 25 240 0 013 4336 7 138 26 119 13 1313 4455 7 138 27 119 13 1313 4574 7 138 29 1213 13 130 4694 7 137 313 1213 13 00 4814 7 07

July 2 238 0 1313 51352 7 07 3 118 13 013 51713 7 07 4 118 1 42 5288 8 138 6 122 0 00 5410 8 07 7 116 13 00 5526 8 07

10 126 0 1313 5652 8 07 11 119 0 013 5771 8 07 13 116 13 130 5887 8 07 14 119 2 84 6006 10 07 17 122 0 00 6128 10 07 18 112 0 1313 6240 10 136 20 119 13 00 6359 10 06 21 112 0 013 6471 10 06

6471 10

48

------------------------------------------------------------------

------------------------------------------------------------------

TABLE 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983

Cum Cum Date Hours Catch CPUE Hours Catch CPUE

July 24 26

115 120 0 00

115 235

0 0

00

00 27 117 4 00 352 0 00 29 117 0 137 469 4 34 31 116 3 103 585 7 48

August 2 122 0 00 706 7 40 3 122 2 66 828 9 43 5 118 1 34 946 10 42 7 128 14 437 1074 24 89 9 257 14 218 1331 38 114

10 125 21 672 1456 59 162 12 13 middot- 0 00 1469 x 59 161 14 10 7 12 449 1576 71 180 16 122 2 66 1698 73 172 17 123 6 196 1821 79 174 19 118 1 34 1939 80 165 21 112 6 214 2051 86 168 23 120 3 100 217 1 89 164 24 115 2 70 2286 91 159 26 115 5 174 2401 96 160 28 119 0 00 2520 96 152 30 119 4 1 34 2639 100 152 31 117 1 34 2756 101 147

Sept 2 123 5 33 2879 106 147 4 479 15 125 3358 121 144 6 238 11 185 3596 132 147 7 237 5 84 3833 137 143 8 238 6 1 01 4071 143 141 9 242 10 1 65 4313 153 142

10 242 3 50 4555 156 137 11 242 2 33 4797 158 132 12 241 8 133 5038 166 132 14 227 14 247 5265 180 137 15 242 9 149 5507 189 137 16 210 3 57 5717 192 134 17 239 2 33 5956 194 130 18 230 2 35 6186 196 127 20 489 4 33 6675 200 120 21 24 3 50 6915 203 117 22 242 0 00 7157 203 113 23 234 1 17 7391 204 110

----shy

7391 204

Mesh size = 5 14 from 724 to 810

49

------------------------------------------------------------------

TABLE 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE ------~-----------------------------------------------------------June 16 122 1 33 122 1 33

17 118 0 bull 0 0 240 1 17 20 120 2 67 360 3 33 21 118 0 00 478 3 25 23 119 2 67 597 5 34 24 119 3 102 716 8 45 27 116 19 655 832 27 130 28 120 22 733 952 49 206 30 120 40 1333 1072 89 332

July 1 115 36 1252 1187 125 421 4 122 30 983 1309 155 474 5 114 47 1649 1423 202 568 7 118 30 1016 1541 232 602 8 120 shy 24 800 1661 -$ 256 616

11 122 42 1377 1783 298 669 12 120 29 967 1903 327 687 14 116 37 1276 2019 364 721 15 118 40 1356 2137 404 756 18 121 60 1976 2258 464 822 19 119 30 740 2377 494 831 21 125 61 1952 2502 555 887 22 118 25 847 2627 580 883 25 122 16 525 2749 596 867 26 116 15 517 2865 611 853 28 122 28 918 2987 639 856 29 117 11 376 3104 650 838

August 1 120 7 233 3224 657 815 2 119 9 303 3345 666 796 4 120 3 100 3465 669 772 5 118 5 170 3583 674 752 8 114 7 245 3697 681 734

11 123 7 337 3 82 0 688 720 15 118 2 68 3938 690 701 16 113 5 177 4051 695 686 18 98 3 122 4149 698 673 19 119 1 34 4268 699 655 22 112 0 00 4380 699 638 23 115 0 00 4495 699 622 25 120 2 66 4615 701 606 26 112 1 36 4727 702 594 29 116 0 00 4843 702 580 30 11 5 0 00 4958 702 566

Sept 1 115 0 00 5079 702 553 2 112 0 00 5191 702 541

----shy5079 702

50

-----------------------------------------------------------------

------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

June 5 73 0 00 73 0 00 7 126 0 00 199 0 00 8 127 0 00 326 0 bull 0 0

10 11 4 3 105 440 3 27 12 113 2 71 553 5 36 14 119 1 34 672 6 36 15 116 4 138 788 10 51 17 116 3 103 904 13 56 19 118 6 203 1022 19 74 21 118 0 00 1140 19 67 22 117 10 342 1257 29 92 24 116 3 103 1373 32 93 26 119 11 370 1492 43 115 28 11 8 6 203 1610 $ 49 122 29 115 13 452 1725 62 144

July 1 119 8 269 1844 70 152 3 119 17 571 1963 87 177 5 119 13 437 2082 100 192 6 12 0 17 567 2202 117 213 8 121 7 231 2323 124 214

10 11 4 18 632 2437 142 233 12 115 12 417 2552 154 241 13 116 37 1276 2668 191 286 15 117 16 547 2785 207 297 17 11 8 31 1051 290 3 238 328 19 118 18 610 3021 256 339 20 115 29 1009 3136 285 364 22 122 17 557 3258 302 371 24 115 24 835 3373 326 387 26 120 19 633 3493 345 395 27 117 11 376 3610 356 394 29 117 14 479 3727 370 397 31 116 18 621 3843 388 404

August 2 121 9 298 3964 397 401 3 122 17 557 4086 414 405 5 11 8 8 271 4204 422 402 7 128 19 594 4332 441 407 9 257 10 156 4589 451 393

10 125 14 448 4714 464 394 12 13 1 308 4727 465 393 14 107 5 187 4834 470 389 16 122 4 131 4956 474 383 17 123 15 488 5079 489 385 19 118 8 271 5197 497 383 21 112 3 107 5309 500 378 23 120 6 200 5429 506 373 24 115 7 243 5544 513 370

51

-----------------------------------------------------------------------

TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 (Continued)

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

August 26 115 5 174 5657 518 366 28 119 1 34 577 6 519 359 30 119 4 134 5895 523 355 31 117 0 00 6012 523 3 48

Sept 2 123 3 98 613 5 526 343 4 479 2 17 6614 528 319 6 238 1 17 6852 529 309 7 237 0 00 7089 529 298 8 9

238 242

1 2

17

33 7327 7569

clt

530 532

289 281

10 242 3 50 7811 535 274 11 242 0 00 8053 535 266 12 241 2 33 8294 537 259 14 227 3 53 8521 540 253 15 242 0 00 8763 540 246 16 210 1 19 8973 541 241 17 239 2 33 9212 543 236 18 230 0 00 9442 543 230 20 489 0 00 9931 543 219 21 240 2 33 10171 545 214 22 242 0 0 10413 545 209 23 234 0 00 10647 545 205

----shy

10647 545

52

------------------------------------------------------------------------

------

TABLE 6A Unalakleet River Sonar Site Drift Sets5 1 4n Me sh 19 83 bull

Date Time Result

July 19 1405-1413 1 burbot July 23 1040-1055 1 pink caracass July 27 1520-1530 1 coho August 3 1444-1501 4 coho August 22 1930-1937 0 August 23 937-943 1 coho 1 pink carcass August 26 1117-1127 1 coho 3 churn August 31 1018-1034 3 churn

TABLE 6B Unalakleet River Sonar Site Beach Seines 1983

Date Time Distance Result

July 20 1445 120 meters 4 pink 1 churn 13 Dolly Varden 1 whitefish

July 25 1500 120 meters 6 pink 1 churn 1 Dolly Varden 4 whitefish 1 grayling

July 28 1700 120 meters 4 coho 2 pink 2 churn 1 Dolly Varden

August 1 2010 300 meters 4 pink 3 churn 8 Dolly Varden

August 4 1015 130 meters 5 coho 3 pink 3 churn 65 Dolly Varden 3 whitefish 3 grayling

August 24 1110 130 meters 18 coho 2 Dolly Varden 2 grayling

August 29 1715 120 meters 11 coho 1 pink 69 churn 1 Dolly Varden 2 grayling

Seine done at mile 12 Unalakleet River

53

--------------------------------------------------------------------------------------------------

--------------------------------------------------------------------------------------------------

TABLE 7 AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER CATCH SAMPLE SPORT CATCH AND SPAWNING SURVEYS 1983

II

COMBINED 3-2 4-2 4-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 31 646 6702 5 104 5010 8 167 5688 1 21 5900

Female 17 354 8540 o o 1 21 5450 o o

Total 48 1000 7353 5 104 5010 9 188 5661 1 21 5900

~ 11)

5-2 6-2 7-2 7-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 11 229 7382 6 125 8350 0 0 0 0

Female 2 42 7925 12 250 8742 1 21 10650 1 21 8350

Total 13 271 7465 18 375 8611 1 21 10650 1 21 8350

TABLE 8A AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER TEST NET SAMPLE 1983

-----~-------------------------------------------------------------------------------------------------------

gt

COMBINED 4-2 5-2 5-3 6-2 7-2 NO LENGIH NO LENGIH NO LENGIH NO LENGTH NO LENGTH NO LENGTr

8 14 n

Male 3 333 8107 0 1 111 5800 o 0 2 222 9260 0 0 Female 6 667 8295 0 0 1 111 7600 o o 4 444 8310 1 111 8930 Total 9 10 e 0 8232 0 o 2 222 6700 o o 6 667 8627 1 111 8930

If) If)

5 14 Male 19 1000 6298 12 632 5392 4 211 6990 0 o 3 158 8997 0 0 Female o 0 o o o o o o 0 0 0 0 Total 19 1000 6298 12 632 5392 4 211 6990 o o 3 158 8997 0 0

4 n or Smaller Male 6 667 5930 1 111 4660 2 222 6325 3 333 6090 0 o 0 o Female 3 333 8970 o o o o o o 3 333 8970 0 o Total 9 1000 6943 1 111 466 2 222 6325 3 33 3 6090 3 33 3 8970 0 0

TOTAL Hale 28 757 6413 13 351 5336 7 189 6630 3 8 1 6090 5 13 5 9102 o 0 Female 9 243 852 o o 1 27 7600 o o 7 189 8593 1 2 7 8930 Total 37 1000 6925 13 351 5336 8 216 6751 3 8 1 6090 12 324 88 e 5 1 2 7 8930

---------------------------------------------------------------------------------------------------------

---------------------------------------------------------------------------------------------------------

TABLE 8B AGE SEX AND SIZE COMPOSITION OF NORTON SOUND COHO SALMON UNALAKLEET RIVER TEST NET SAMPLE 5 14 AND 5 78 GEAR 1983

COMBINED 3-2 4-3 4-4 5-4 NO LENGIH NO LENGIH NO LENGTH NO LENGIH NO LENGTH

Male 9 900 5489 0 0 9 900 5489 0 0 Female 1 10 bull 0 552 QJ QJ 0 1 10QJ 5520 0 0 Total 10 1000 5492 0 0 10 1000 5492 0 0 725-731

bull LI)Male 15 938 5645 15 938 5645 Female 1 62 575 QJ 1 62 575 QJ Total 16 lQJ0QJ 5651 16 100QJ 5651 81-87

Male 24 545 5668 23 523 5768 1 23 3350 Female 20 455 5631 20 455 5631 0 0 Total 441QJ0QJ 5651 43 977 57 QJ 4 1 23 335 QJ 88-814

Male 7 500 5797 7 500 5797 QJ 0 Female 7 500 5596 6 429 5587 1 71 5650 Total 14 1000 5696 13 929 1 71 5650570 815-821

Male 5 455 5492 5 455 5492 Female 6 545 5552 6 545 5552 Total 11 lQJ00 5525 11 100QJ 5525 822-828

Figure 9 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1983bull

~

middot10

09 U N

I 08 0 c 07E I ()

- 06 E-0 0 05 shy~ () 04 ca - ()

03E I 0 02

01

27 1 5 10 15 2Q 25 1 5 10 15 20 25 31

June July

Figure 10 Unalakleet River Test Fishing Daily Coho CPUE in 5 78 mesh 1983

1

6

5

I 0

NI II I 0 t

E 4

0 0 c 3() cu 0

2

1

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sept U

Figure 11 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1983

200

175

150

I 0 c 125E I ()

E

r-shy-0 I I N 0 100 c ()-as ()

75E I 0

50

25

1 5 10 15 20 25 1 5 10 15 20 25 1 5 10 15 20

July August Sel ber

20

Figure 12 Unalakleet River Test Fishing Daily Pink CPUE in 4 mesh 1983

18

I

0) N

II

16

I ishy

14 J 0 t 12shyE 0 10 0 shys 8 () as

0 6 1 I V 4

2

~ I

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

--

Figure 13 Unalakleet River Test Fishing Cumulat ive Pink CPUE in 4 mesh 1983

10

9 01 N 8

J 0 J 7 E J 0 6 E- 50 ~

amp 4() ca

0 3 E J

0 2

1

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5

June July August Sept

Figure 14 Unalakleet River Test Fishing Daily CPUE in 5 14 amp 5 78 mesh 1983

14

13shy

12

11

10

9 J 0 8

I z shy-E 7 0 0 shys ~u aI 0

4 I

31

2

1

II

0 C1)I 11

I I I II

bull y AA(net changed to 5 78

AA A 11 I

~ I~ V ~

- I

VI

1 5 10 15 20- 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

cJune July August

Figure 15 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 14 amp 5 78 mesh 1983

It

5

--l C)

net changed to 5 78

~ 4 o

c E (J ~

3E o o c 2 u ~ -(J

E ~ (J 1

1 5 10 15 2Q 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 16 Unalakleet River Test Fishing Catch Proportions 1983

60

55

---- King50

__ Coho 45

P--Q Pink

40 __ Chum

I LU 35J D I 0

30 ICQ 0 25 I

N Cl0 20

c G)

15u G)

D

10

5 A 1 I

I 4 I

I I

3 lt

~

2

I I1 - I bull I

I ~ ~ ~ t -J ~~ - _

r

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 17 Unalakleet Area Temperatures 1983

18

16

14

12

til 10I

u-G) 80 CI) G) G) 6 C) G)

Q 4

2

C) C)

__ Air

0--0 River 2

0

-2

-4

---------~ ~

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August 5e

4

Figure 18 Unalakleet River Turbidity and Depth 1983

__ Secchi Reading

-t ()

II) G)-G)

3

iE 2

1

27 31 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August

~ 1 _ ~ r--- I shy I __ I 01 --shy

Figure 19 Unalakleet River Test Fishing Cumulative King CPUE in 8 14 mesh 1981-83

27 31 5

May

_1981

____ 1982

o 0 1983 11) C)

Changed to 5 78 mesh

I

t

~-~o-~ Q-O--Oolt)-(IQ-----l

--1

_10 15 20 25 30 5 10 15 20 25 31

June July

I I I

~

0 ~

r E ~

CJ shyE 0 0 I

shyr u-cu CJ

E ~

CJ

4

35

30

25

20

15

10

05

Figure 20 Unalakleet River Test Fishing Cumulative Chum CPUE in 5 78 mesh 1981-83

5

4 lI 0

z

E lI 0 3 E-0 0 2 r CJ-cu 0

E lI 1 0

__1981 ~~

~ ___1982

a 01983 5 148 mesh from 65-810

_----shy-- 0 - -- C1) A - _ - ~

~ I

I

II I I I I I

I I

1

~ -

-

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

June July August s

Figure 21 Unalakleet River Test Fishing Cumulative Pink CPUE in 4 mesh- 1981-83

8

70

60

50

40 0

r 30E

0 20E-0 0 10 s= u 8 tV 0 6E 0 4

2

__1981 ____ 1982

_1983

shy--- -- shy--- shy J - -

I

I

C1- J

I

-----l---l ~--~r---------------r--

1 5 10 15 20 25 30 5 10 15 20 25 31 5 10 15 20 25 31 5 10

June July August Sept

Figure 22 Unalakleet River Test Fishing Cumulative Coho CPUE in 5 78 mesh 1981-83

_1981

~ __ 1982

~1983

25

00I _ __ _ _ C)~ I __ _ I

I V o 20 rt I I

E I AshyI o E 15-o o z u 10 tU o E I o 5

I

1 5 10 15 20 25 31 5 10 15 20 25 31 5 10 15 20

July August 5

----------------------------------------------------------------

Table 1 Unalakleet River Subsistence King Salmon Index 1983

Number of Number of Date Fishermen Chinook Average

08 02 18 05 05 00 02 58 92 62 72 72 42 28 52 60 62 20 47 50 35 25 15

June 8 9

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Totals

4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 3 3 3 4 4 4

4

3 1 7 2 2 o 1

23 37 25 29 29 17 11 21 24 25

6 14 15 14 H~

6

322

~

39

---------------------- ---------- --------------------------------------

----------------------------------------------------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983

Daily Proportion Cumu1 Prop Date South North Total of Total Cumulative of Total

64 7 23 30 1313131 313 013131 65 44 187 231 00137 261 01308 66 12 162 174 01305 435 01313 67 8 283 291 1313139 726 01322 68 0000 726 13022 69 3 221 224 013137 950 13029 610 26 245 271 131308 1221 13037 611 56 254 310 131310 1531 131347 612 44 736 780 013 24 2311 13071 613 64 1188 1252 01339 3563 01113 614 59 1752 1811 0056 5374 0166 615 97 844 941 01329 6315 0195 616 165 729 894 0028 7209 0223 617 151 i 604 1755 0054 8964 middot 0277 618 i ll 1524 1635 0051 10599 13328 619 175 2000 2175 0067 12774 13395 620 171 21320 2191 0068 14965 0463 621 220 1613 1833 0057 16798 0520 622 199 2065 2264 0070 19062 0590 623 362 21334 2396 0074 21458 13664 624 876 3403 4279 13133 25737 0797 625 1244 2023 3267- 0101 29004 0898 626 738 1601 2339 0073 31343 0971 627 573 3265 3838 0119 35181 1090 628 547 1868 2415 0075 37596 1165 629 528 4028 4556 0141 42152 1306 630 430 430 0013 42582 1319 71 240 240 01307 42822 1326 72 201 975 1176 0036 43998 1362 73 309 8842 9151 0284 53149 1646 74 475 6385 6860 0213 60009 1859 75 565 3342 3907 0121 63916 1980 76 1377 2094 3471 0108 67387 2088 77 1416 3173 4589 0142 71976 2230 78 1472 1420 2892 0090 74868 2320 79 2071 1452 3523 01113 78391 2430 710 3318 2434 5752 0178 84143 2608 711 2673 2866 5539 13172 89682 2780 712 1665 1747 3412 13106 93094 2886 713 21317 1951 3968 13123 97062 3009 714 2991 2664 5655 0175 102717 3184 715 2646 2548 5194 13161 107911 3345 716 2488 2886 5374 0167 113285 3512 717 1585 4063 5648 0175 118933 3687 718 3559 9326 12885 0400 131818 4087 719 2948 2398 5346 13166 137164 4253 720 1640 3330 4970 0154 142134 4407 721 2416 6420 8836 0274 150970 4681 722 3298 3298 0102 154268 4783 723 5007 5007 0155 159275 4938

40

--------------------------------------------------------------------

--------------------------------------------------------------------

-----------------------------

TABLE 2 Unalakleet River Final Sonar Counts 1983 (Continued)

Daily Proportion Cum Prop Date South North Total of Total Cumu1at i ve of Total

724 4005 7804 11809 0366 171084 5304 725 2453 3392 5845 0181 176929 5485 726 2166 12094 14260 0442 191189 5927 727 1914 4472 6386 0198 197575 6125 728 1603 3463 5066 0157 202641 6282 729 1251 1914 3165 0098 205806 6380 730 1710 2495 4205 en30 210011 6510 731 2542 1887 4429 0137 214440 6647 81 4479 2271 6750 0209 221190 6856 82 1103 1806 2909 0091 224099 6947 83 1719 942 2661 0083 226760 bull 7030 84 1519 2557 4076 0126 230836 7156 85 1259 1113 2372 0074 233208 7230 86 940 2189 3129 0097 236337 7327 87 1467 4354 5821 0180 242158 7507 88 2318 1584 3902 0121 246060 7628 89 2098 1505 3603 0112 249663 7740 810 2629 1517 4146 bull 0129 253809 7869 811 3753 1091 4844 0150 258653 8019 812 1489 523 2012 0062 260665 8081 813 744 353 1097 0034 261762 8386 814 981 981 bull 0030 262743 8145 815 2324 2324 0072 265067 8217 816 2638 2638 0082 267705 8299 817 2073 731 2804 0087 270509 8115 818 2244 675 2919 0091 273428 8477 819 3240 696 3936 0122 277364 8599 820 2363 503 2866 0089 280230 8688 821 6789 1111 7900 0245 288130 8933 822 6489 563 7052 0219 295182 9152 823 5077 298 5375 0167 300557 9319 824 2616 298 2914 0090 303471 9409 825 3933 412 4345 0135 307816 9544 826 1393 554 1947 0060 309763 9604 827 1203 463 1666 0052 311429 9656 828 1197 542 1739 0054 313168 9710 829 1244 221 1465 0045 314633 9755 830 1011 199 1210 0038 315843 9793 831 718 214 932 0029 316775 9822 91 1324 318 1642 0052 318417 9874 92 1362 307 1669 0052 320086 9926 93 1146 314 1460 0045 321546 9971 94 652 296 948 bull 0029 322494 10000

148465 174029 322494 10000

41

----------------------------------------------------------------------

-------------------------------------------------------------------- --

------

TABLE 3A Unalakleet River Species Apportionment by Test Period King Salmon 1983

3-Day App Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 76 0272 76 0272

69-612N 28 0100 104 0372

612N-615 461 1652 565 2024

616-619N 419 1502 984 3526

619N-622 170 0609 1154 4135

623-626N 722 2588 1876 6723

626N-629 264 0946 2140 7669

630-73N 103 0639 2243 8038

73N-76 188 0674 2431 8712

77-710N 0 0000 2431 8712

710N-713 0 0000 2431 8712

714-717N 267 0957 2698 9969

717N-720 0 0000 2698 9669

721-724N 92 0331 2790 1 0000

724N-727 0 0000 2790 10000

728-731N 0 0000 2790 1 0000

731N-83 0 0000 2790 1 0000

2790 10000

42

Dates

714-717N

717N-720

721-724N

724N-727

728-731N

731N-83

84-87N

87N-810

811-814N

814N-817

818-821N

821N-824

825-828N

828N-831

91-94

TABLE 3B Unalakleet River Species Apportionment by Test Period Coho Salmon

3-Day Count

583

338

436

550

2650

1174

793

1435

5074

1280

435

2265

171H3

1983

Proportion of Season Total

0000

0000

0000

0343

0199

0256

0323

1558

0690

0466

0843

2983

0752

0256

1331

Cumulative Count

583

921

1357

1907

4557

5731

6524

7959

13033

14313

14748

17013

Cumulative Proportion

0000

0000

0000

0343

0542

0798

1121

2679

3369

3835

4678

7661

8413

8669

10000

43

------------------------------------------------------------------

------------------------------------------------------------------

----- ------

TABLE 3C Unalakleet River Species Apportionment by Test Period Pink Salmon 1983

3-Day P roport ion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 0 0000

6l2N-615 0 0000

616-6l9N 97 0012

6l9N-622 332 0036

623-626N 1245 0136

626N-629 6624 0721

630-73N 3699 0403

73N-76 10762 1171

77-7l0N 7704 0838

710N-7l3 8529 0928

714-717N 9771 1063

717N-720 13845 1507

721-724N 11361 1236

724N-727 6544 0712

728-731N 3545 0386

731N-83 1628 0177

84-87N 1224 0133

87N-810 1777 0193

811-814N 802 0087

814N-817 561 0061

818-821N 533 0058

821N-824 8313 13091

825-828N 468 0051

828N-831 0 0000

91-94 0 0000

91881 10000

0 0000

0 0000

0 0000

97 0012

429 0048

1674 0184

8298 0905

11997 1308

22759 2479

30463 3317

38992 4245

48763 5308

62608 6815

73969 8051

80513 8763

84058 9149

85686 9326

86910 9459

88687 9652

89489 9739

90050 9800

90583 9858

91413 9949

91881 10000

91881 10000

91881 1 0000 44

------------------------------------------------------------------

------------ ------------------------------------------------------

----- ------

TABLE 3D Unalakleet River Species Apportionment by Test Period Chum Salmon 1983

3-Day Proportion of Cumulative Cumulative Dates Count Season Total Count Proportion

64-68 0 0000

69-612N 100 0017

612N-615 268 0046

616-619N 838 0144

619N-622 1180 0202

623-626N 2744 0471

626N-629 1569 0270

630-73N 796 0137

73N-76 2972 0510

77-710N 2068 0355

710N-713 2622 0450

714-717N 4133 0710

717N-720 5596 0960

721-724N 4978 0854

724N-727 8974 1540

728-731N 2241 0385

731N-83 2079 ~0357

84-87N 3009 0516

87N-810 2432 0417

811-814N 937 0161

814N-817 454 0078

818-821N 2584 0443

821N-824 2739 0470

825-828N 1783 0306

828N-831 765 0131

91-94 412 0070

58273 10000 45

0 0000

100 0017

368 0063

1206 0207

2386 0409

5130 0880

6699 1150

7495 1287 f

10467 1797

12535 2152

15157 2602

19290 3312

24886 4272

29864 5216

38838 6666

41079 7051

43158 7408

46167 7924

48559 8341

49536 8502

49990 8580

52574 9023

55313 9493

57096 9799

57861 9930

58273 1 0000

-------------------------------------------------------------

------------------------- ------------------------------------

TABLE 4 Unalakleet River Test Net Proportions by Sample Perio-d 1983 ( Selective CPUE)

Dates Chinook Coho Pink Chum Misc

64-68 105 00 00 895

69-612N 24 00 83 893

612N-615 1C~ 5 00 61 834

616-619N 78 18 156 748

619N-622 23 45 160 772

623-626N 65 112 247 576

626N-629 22 553 131 294

630-73N 16 576 124 284

73N-76 10 572 158 260

77-710N 00 555 149 296

710N-713 00 540 166 294

714-717N 14 00 513 217 256

717N-720 00 00 532 215 253

721-724N 04 00 493 216 287

724N-727 00 18 202 277 503

728-731N 00 23 242 153 582

731N-83 00 30 112 143 715

84-87N 44 98 241 617

87N-810 182 122 167 529

811-814N 139 95 111 655

814N-B17 96 68 55 7B1

B18-B21N 105 39 1B9 667

821N-824 263 43 142 552

825-B28N 145 53 202 600

828N-831 97 00 171 732

91-94 396 00 72 532

46

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TABLE 4 Una1ak1et River Test Net Proportions 1983 ( Selective CPUE) (Continued)

Comparative Apportionment

Species Apportionment

Chinook 2790 Coho 17013 Pink 91881 Churn 58273

------shySubtotal 169957

Misc Species 152537 ------shy

Total 322494

Substrate Comparison -------------------shy

Bank Counts -----shy

South 148465 North 174029

------shy

Total 322494

Percent of Total Counts

09 53

285 181

5408

472

1000

Percent

460 540

1000

47

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TABLE 5A Unalakleet River Test Net Data King Salmon in 8 14 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

May 27 28

21 5 482

13 13

1313

1313 21 5 697

13 13

1313

1313 30 240 0 013 937 0 00 31 246 2 41 1183 2 08

June 1 237 0 00 1420 2 07 2 3

256 585

13 13

013 bull 13 13

1676 2 261

2 2

6bull 13 4

5 6 8

160 120 middot 125

13 1

13 42 130

2 421 2541 2666

~ 2 3 3

bull 13 4 136 136

9 122 0 130 2788 3 05 11 117 00 2905 3 05 12 126 13 00 3031 3 05 13 117 1 43 3148 4 06 15 118 0 013 3266 4 136 16 116 1 43 3382 5 138 18 240 13 130 3622 5 07 19 121 0 00 3743 5 07 20 116 0 00 3859 5 136 22 118 1 42 3977 6 138 23 119 1 42 4196 7 08 25 240 0 013 4336 7 138 26 119 13 1313 4455 7 138 27 119 13 1313 4574 7 138 29 1213 13 130 4694 7 137 313 1213 13 00 4814 7 07

July 2 238 0 1313 51352 7 07 3 118 13 013 51713 7 07 4 118 1 42 5288 8 138 6 122 0 00 5410 8 07 7 116 13 00 5526 8 07

10 126 0 1313 5652 8 07 11 119 0 013 5771 8 07 13 116 13 130 5887 8 07 14 119 2 84 6006 10 07 17 122 0 00 6128 10 07 18 112 0 1313 6240 10 136 20 119 13 00 6359 10 06 21 112 0 013 6471 10 06

6471 10

48

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TABLE 5B Unalakleet River Test Net Data Coho Salmon in 5 78 Mesh 1983

Cum Cum Date Hours Catch CPUE Hours Catch CPUE

July 24 26

115 120 0 00

115 235

0 0

00

00 27 117 4 00 352 0 00 29 117 0 137 469 4 34 31 116 3 103 585 7 48

August 2 122 0 00 706 7 40 3 122 2 66 828 9 43 5 118 1 34 946 10 42 7 128 14 437 1074 24 89 9 257 14 218 1331 38 114

10 125 21 672 1456 59 162 12 13 middot- 0 00 1469 x 59 161 14 10 7 12 449 1576 71 180 16 122 2 66 1698 73 172 17 123 6 196 1821 79 174 19 118 1 34 1939 80 165 21 112 6 214 2051 86 168 23 120 3 100 217 1 89 164 24 115 2 70 2286 91 159 26 115 5 174 2401 96 160 28 119 0 00 2520 96 152 30 119 4 1 34 2639 100 152 31 117 1 34 2756 101 147

Sept 2 123 5 33 2879 106 147 4 479 15 125 3358 121 144 6 238 11 185 3596 132 147 7 237 5 84 3833 137 143 8 238 6 1 01 4071 143 141 9 242 10 1 65 4313 153 142

10 242 3 50 4555 156 137 11 242 2 33 4797 158 132 12 241 8 133 5038 166 132 14 227 14 247 5265 180 137 15 242 9 149 5507 189 137 16 210 3 57 5717 192 134 17 239 2 33 5956 194 130 18 230 2 35 6186 196 127 20 489 4 33 6675 200 120 21 24 3 50 6915 203 117 22 242 0 00 7157 203 113 23 234 1 17 7391 204 110

----shy

7391 204

Mesh size = 5 14 from 724 to 810

49

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TABLE 5C Unalakleet River Test Net Data Pink Salmon in 4 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE ------~-----------------------------------------------------------June 16 122 1 33 122 1 33

17 118 0 bull 0 0 240 1 17 20 120 2 67 360 3 33 21 118 0 00 478 3 25 23 119 2 67 597 5 34 24 119 3 102 716 8 45 27 116 19 655 832 27 130 28 120 22 733 952 49 206 30 120 40 1333 1072 89 332

July 1 115 36 1252 1187 125 421 4 122 30 983 1309 155 474 5 114 47 1649 1423 202 568 7 118 30 1016 1541 232 602 8 120 shy 24 800 1661 -$ 256 616

11 122 42 1377 1783 298 669 12 120 29 967 1903 327 687 14 116 37 1276 2019 364 721 15 118 40 1356 2137 404 756 18 121 60 1976 2258 464 822 19 119 30 740 2377 494 831 21 125 61 1952 2502 555 887 22 118 25 847 2627 580 883 25 122 16 525 2749 596 867 26 116 15 517 2865 611 853 28 122 28 918 2987 639 856 29 117 11 376 3104 650 838

August 1 120 7 233 3224 657 815 2 119 9 303 3345 666 796 4 120 3 100 3465 669 772 5 118 5 170 3583 674 752 8 114 7 245 3697 681 734

11 123 7 337 3 82 0 688 720 15 118 2 68 3938 690 701 16 113 5 177 4051 695 686 18 98 3 122 4149 698 673 19 119 1 34 4268 699 655 22 112 0 00 4380 699 638 23 115 0 00 4495 699 622 25 120 2 66 4615 701 606 26 112 1 36 4727 702 594 29 116 0 00 4843 702 580 30 11 5 0 00 4958 702 566

Sept 1 115 0 00 5079 702 553 2 112 0 00 5191 702 541

----shy5079 702

50

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TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

June 5 73 0 00 73 0 00 7 126 0 00 199 0 00 8 127 0 00 326 0 bull 0 0

10 11 4 3 105 440 3 27 12 113 2 71 553 5 36 14 119 1 34 672 6 36 15 116 4 138 788 10 51 17 116 3 103 904 13 56 19 118 6 203 1022 19 74 21 118 0 00 1140 19 67 22 117 10 342 1257 29 92 24 116 3 103 1373 32 93 26 119 11 370 1492 43 115 28 11 8 6 203 1610 $ 49 122 29 115 13 452 1725 62 144

July 1 119 8 269 1844 70 152 3 119 17 571 1963 87 177 5 119 13 437 2082 100 192 6 12 0 17 567 2202 117 213 8 121 7 231 2323 124 214

10 11 4 18 632 2437 142 233 12 115 12 417 2552 154 241 13 116 37 1276 2668 191 286 15 117 16 547 2785 207 297 17 11 8 31 1051 290 3 238 328 19 118 18 610 3021 256 339 20 115 29 1009 3136 285 364 22 122 17 557 3258 302 371 24 115 24 835 3373 326 387 26 120 19 633 3493 345 395 27 117 11 376 3610 356 394 29 117 14 479 3727 370 397 31 116 18 621 3843 388 404

August 2 121 9 298 3964 397 401 3 122 17 557 4086 414 405 5 11 8 8 271 4204 422 402 7 128 19 594 4332 441 407 9 257 10 156 4589 451 393

10 125 14 448 4714 464 394 12 13 1 308 4727 465 393 14 107 5 187 4834 470 389 16 122 4 131 4956 474 383 17 123 15 488 5079 489 385 19 118 8 271 5197 497 383 21 112 3 107 5309 500 378 23 120 6 200 5429 506 373 24 115 7 243 5544 513 370

51

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TABLE 5D Unalakleet River Test Net Data Chum Salmon in 5 78 Mesh 1983 (Continued)

Cum Cum Cum Date Hours Catch CPUE Hours Catch CPUE

August 26 115 5 174 5657 518 366 28 119 1 34 577 6 519 359 30 119 4 134 5895 523 355 31 117 0 00 6012 523 3 48

Sept 2 123 3 98 613 5 526 343 4 479 2 17 6614 528 319 6 238 1 17 6852 529 309 7 237 0 00 7089 529 298 8 9

238 242

1 2

17

33 7327 7569

clt

530 532

289 281

10 242 3 50 7811 535 274 11 242 0 00 8053 535 266 12 241 2 33 8294 537 259 14 227 3 53 8521 540 253 15 242 0 00 8763 540 246 16 210 1 19 8973 541 241 17 239 2 33 9212 543 236 18 230 0 00 9442 543 230 20 489 0 00 9931 543 219 21 240 2 33 10171 545 214 22 242 0 0 10413 545 209 23 234 0 00 10647 545 205

----shy

10647 545

52

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------

TABLE 6A Unalakleet River Sonar Site Drift Sets5 1 4n Me sh 19 83 bull

Date Time Result

July 19 1405-1413 1 burbot July 23 1040-1055 1 pink caracass July 27 1520-1530 1 coho August 3 1444-1501 4 coho August 22 1930-1937 0 August 23 937-943 1 coho 1 pink carcass August 26 1117-1127 1 coho 3 churn August 31 1018-1034 3 churn

TABLE 6B Unalakleet River Sonar Site Beach Seines 1983

Date Time Distance Result

July 20 1445 120 meters 4 pink 1 churn 13 Dolly Varden 1 whitefish

July 25 1500 120 meters 6 pink 1 churn 1 Dolly Varden 4 whitefish 1 grayling

July 28 1700 120 meters 4 coho 2 pink 2 churn 1 Dolly Varden

August 1 2010 300 meters 4 pink 3 churn 8 Dolly Varden

August 4 1015 130 meters 5 coho 3 pink 3 churn 65 Dolly Varden 3 whitefish 3 grayling

August 24 1110 130 meters 18 coho 2 Dolly Varden 2 grayling

August 29 1715 120 meters 11 coho 1 pink 69 churn 1 Dolly Varden 2 grayling

Seine done at mile 12 Unalakleet River

53

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TABLE 7 AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER CATCH SAMPLE SPORT CATCH AND SPAWNING SURVEYS 1983

II

COMBINED 3-2 4-2 4-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 31 646 6702 5 104 5010 8 167 5688 1 21 5900

Female 17 354 8540 o o 1 21 5450 o o

Total 48 1000 7353 5 104 5010 9 188 5661 1 21 5900

~ 11)

5-2 6-2 7-2 7-3 NO LENGlH NO LENGlH NO LENGlH NO LENGlH

Male 11 229 7382 6 125 8350 0 0 0 0

Female 2 42 7925 12 250 8742 1 21 10650 1 21 8350

Total 13 271 7465 18 375 8611 1 21 10650 1 21 8350

TABLE 8A AGE SEX AND SIZE COMPOSITION OF NORTON SOUND KING SALMON UNALAKLEET RIVER TEST NET SAMPLE 1983

-----~-------------------------------------------------------------------------------------------------------

gt

COMBINED 4-2 5-2 5-3 6-2 7-2 NO LENGIH NO LENGIH NO LENGIH NO LENGTH NO LENGTH NO LENGTr

8 14 n

Male 3 333 8107 0 1 111 5800 o 0 2 222 9260 0 0 Female 6 667 8295 0 0 1 111 7600 o o 4 444 8310 1 111 8930 Total 9 10 e 0 8232 0 o 2 222 6700 o o 6 667 8627 1 111 8930

If) If)

5 14 Male 19 1000 6298 12 632 5392 4 211 6990 0 o 3 158 8997 0 0 Female o 0 o o o o o o 0 0 0 0 Total 19 1000 6298 12 632 5392 4 211 6990 o o 3 158 8997 0 0

4 n or Smaller Male 6 667 5930 1 111 4660 2 222 6325 3 333 6090 0 o 0 o Female 3 333 8970 o o o o o o 3 333 8970 0 o Total 9 1000 6943 1 111 466 2 222 6325 3 33 3 6090 3 33 3 8970 0 0

TOTAL Hale 28 757 6413 13 351 5336 7 189 6630 3 8 1 6090 5 13 5 9102 o 0 Female 9 243 852 o o 1 27 7600 o o 7 189 8593 1 2 7 8930 Total 37 1000 6925 13 351 5336 8 216 6751 3 8 1 6090 12 324 88 e 5 1 2 7 8930

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TABLE 8B AGE SEX AND SIZE COMPOSITION OF NORTON SOUND COHO SALMON UNALAKLEET RIVER TEST NET SAMPLE 5 14 AND 5 78 GEAR 1983

COMBINED 3-2 4-3 4-4 5-4 NO LENGIH NO LENGIH NO LENGTH NO LENGIH NO LENGTH

Male 9 900 5489 0 0 9 900 5489 0 0 Female 1 10 bull 0 552 QJ QJ 0 1 10QJ 5520 0 0 Total 10 1000 5492 0 0 10 1000 5492 0 0 725-731

bull LI)Male 15 938 5645 15 938 5645 Female 1 62 575 QJ 1 62 575 QJ Total 16 lQJ0QJ 5651 16 100QJ 5651 81-87

Male 24 545 5668 23 523 5768 1 23 3350 Female 20 455 5631 20 455 5631 0 0 Total 441QJ0QJ 5651 43 977 57 QJ 4 1 23 335 QJ 88-814

Male 7 500 5797 7 500 5797 QJ 0 Female 7 500 5596 6 429 5587 1 71 5650 Total 14 1000 5696 13 929 1 71 5650570 815-821

Male 5 455 5492 5 455 5492 Female 6 545 5552 6 545 5552 Total 11 lQJ00 5525 11 100QJ 5525 822-828