trout lake · the 2016-17 fishing season ran from may 7, 2016 through march 5, 2017. the open water...

WISCONSIN DEPARTMENT OF NATURAL RESOURCES CREEL SURVEY REPORT

TROUT LAKE VILAS COUNTY

2016-17

Treaty Fisheries Publication

Compiled by Jeff Blonski & Jason Halverson

Treaty Fisheries Technicians

CONTENTS INTRODUCTION.................................................................................................................. 1 GENERAL LAKE INFORMATION ..................................................................................... 2 Location ........................................................................................................................... 2 Physical Characteristics ................................................................................................... 2 Seasons Surveyed ............................................................................................................. 2 Weather ............................................................................................................................ 2 Fishing Regulations ......................................................................................................... 2 SPECIES CATCH AND HARVEST INFORMATION ........................................................ 2 CREEL SURVEY RESULTS AND DISCUSSION .............................................................. 3 Survey Logistics ............................................................................................................... 3 General Angler Information ............................................................................................. 3 RESULTS BY SPECIES ....................................................................................................... 3 ACKNOWLEDGMENTS ..................................................................................................... 4 SUMMARY TABLES Table 1. Sportfishing effort summary .................................................................................... 5 Table 2. Creel survey synopses .............................................................................................. 6 SPECIES CATCH AND HARVEST INFORMATION Gamefish Figure 1. Walleye ............................................................................................................. 7 Figure 2. Northern Pike .................................................................................................... 8 Figure 3. Muskellunge ..................................................................................................... 9 Figure 4. Smallmouth Bass .............................................................................................. 10 Figure 5. Largemouth Bass .............................................................................................. 11 Figure 6. Lake Trout ........................................................................................................ 12 Figure 7. Cisco ................................................................................................................ 13 Figure 8. Whitefish ......................................................................................................... 14 Panfish Figure 9. Yellow Perch .................................................................................................... 15 Figure 10. Bluegill ........................................................................................................... 16 Cover Art: Steve Hilt, Portland, OR Fish Graphics: Virgil Beck, Stevens Point, WI

1

INTRODUCTION Fish populations can fluctuate due to natural forces (weather, predation, competition), management actions (stocking, regulations, habitat improvement), inappropriate development (habitat degradation), and harvest impacts. Wisconsin Department of Natural Resources fisheries crews regularly conduct fishery surveys on area lakes and reservoirs to gather the information needed to monitor changes, identify concerns, evaluate past management actions, and to prescribe fishery management strategies. Netting and electrofishing surveys are used to gather data on the status of fish populations and communities (species composition, population size, reproductive success, size/age distribution, and growth rates). The other key component of the fishery that we often need to measure is the harvest. On many lakes in the Ceded Territory of northern Wisconsin, harvest of fish is divided between sport anglers and the six Chippewa tribes who harvest fish under rights granted by federal treaties. The tribes harvest fish mostly using a highly efficient method, spearing, during a relatively short time period in the spring. Every fish in the spear harvest is counted – a complete “census” of the harvest. We also measure the sport angler harvest to assess its impact on the fishery. However, it would be highly impractical and very costly to conduct a complete census of every angler who fishes on a lake. Therefore, we conduct creel surveys. A creel survey is an assessment tool used to sample the fishing activities of anglers on a body of water and make projections, or estimates, of harvest and other fishery parameters. Creel survey clerks work on randomly-selected days and shifts, forty

hours per week, during the open season for gamefish from the first Saturday in May through the first Sunday in March. Creel surveys are not conducted in November when fishing effort is low and ice conditions are often unsafe. The survey is run during daylight hours, and shift times change from month to month as day length changes. Creel survey clerks travel their lakes using a boat or snowmobile to count the number of anglers at predetermined times, and to interview anglers who have completed their fishing trip. Data is collected on what species they fished for, catch, harvest, lengths of fish harvested, marks (fin clips or tags), and hours of fishing effort. Collecting completed-trip data provides the most accurate assessment of angling activities, and it avoids the need to disturb anglers while they are fishing. A computer program is used to make estimates of total catch and harvest of each species, catch and harvest rates, and total fishing effort by month, as well as for the year in total. Keep in mind that these are only estimates based on the best information available, and not a complete accounting of effort, catch, and harvest. Accurate estimates require that we sample a sufficient and representative portion of the angling activity on a lake. The accuracy of creel survey results, therefore, depends on good cooperation and truthful responses by anglers when a creel clerk interviews them. You may have encountered a DNR creel survey clerk on a recent fishing trip. We appreciate your cooperation during an interview. The survey only takes a moment of your time, and it gives the Department valuable information needed for management of the fishery.

2

This report provides estimates of: 1. Overall fishing effort (pressure) 2. Fishing effort directed at each species 3. Catch and harvest rates 4. Numbers of fish caught and harvested Also included are a physical description of Trout Lake; discussion of results of the survey; and detailed summaries, by species, of fishing effort, catch and harvest. GENERAL LAKE INFORMATION

Location Trout Lake is located in Vilas County near the town of Boulder Junction. Physical Characteristics Trout Lake is a 3,816-acre drainage lake with a maximum depth of 117. Littoral substrate consists mainly of gravel and sand, with rock and some muck. Trout Lake contains slightly alkaline, clear water of high transparency. Seasons Surveyed The period referred to in this report as the 2016-17 fishing season ran from May 7, 2016 through March 5, 2017. The open water creel survey ran from May 7 through October 31, 2016, and the ice fishing creel survey ran from December 1, 2016 through March 5, 2017. Weather Ice-out on Trout Lake was around April 21, 2016. Fishable ice formed on Trout

Lake in mid December. Fishing Regulations The following seasons, daily bag limits, and length limits were in place on Trout Lake during the 2016-17 fishing season:

Species SeasonBag

LimitMin. Size

Largemouth Bass 5/7-3/5 1 18"Smallmouth Bass 5/7-6/17 Catch&Release

6/18-3/5 1 18"Musky 5/7-11/30 1 40"Northern Pike 5/7-3/5 5 noneWalleye 5/7-3/5 3 15"

Lake Trout 5/4-9/30 1 30"Whitefish/Ciscos year round 10 nonePanfish year round 25 noneRock Bass year round none none

20"-24" Protected Slot, 1>24"

SPECIES CATCH AND HARVEST INFORMATION Angling effort, catch, and harvest information is summarized for each species in Table 2 and Figures 1-10. Table 2 also includes a comparison of these statistics with the previous creel survey. Information presented about species whose fishing season extends beyond March 5 should be considered minimum estimates. Each species page has up to five graphs depicting the following: 1. ESTIMATED FISHING EFFORT Total calculated number of hours

during each month that anglers spent fishing for a species.

2. ESTIMATED SPECIFIC CATCH

AND HARVEST RATES Calculated number of hours it takes

an angler to catch or harvest a fish of the indicated species. Only information from anglers who were specifically targeting that species is reported.

3. ESTIMATED CATCH AND

HARVEST Calculated number of fish of the

Trout Lake

3

indicated species caught or harvested by all anglers, regardless of targeted species.

4. LENGTH DISTRIBUTION OF

HARVESTED FISH All fish of a species that were

measured by the clerk during the entire creel survey season.

5. LARGEST AND AVERAGE

LENGTH OF HARVESTED FISH Monthly largest and average length

of harvested fish of a species. Only those fish measured by the creel survey clerk are reported.

CREEL SURVEY RESULTS AND DISCUSSION Survey Logistics The creel survey went well. We encountered no unusual problems conducting the survey or calculating the projections contained in the report. This was the eighth time the Department conducted a creel survey on Trout Lake. The last creel survey took place in 2013-14. General Angler Information Anglers spent 19,258 hours, or 5.0 hours per acre, fishing Trout Lake during the 2016-17 season (Table 1). That was less than the Vilas County average of 35.2 hours per acre, and slightly less than the fishing effort documented suring the 2013-14 creel survey (5.7 hours per acre). May was the most heavily fished month (5,317 hours). Fishing effort was lightest in December (152 hours). The creel clerks were able to conduct 543 interviews throughout the survey. RESULTS BY SPECIES Walleye (Table 2, Figure 1) Walleyes received the most fishing effort

of any gamefish species during the 2016-17 season. Anglers spent 10,543 hours targeting walleye. The greatest fishing effort for walleyes was in May (4,618 hours). December had the least amount of walleye fishing effort (35 hours). Total catch of walleyes was 2,083 fish with a harvest of 902 fish. Highest catch (954 fish) and highest harvest (544 fish) occurred in May. Anglers fished an average of 5.1 hours to catch, and 11.8 hours to harvest, a walleye during the survey. The mean length of harvested walleyes was 17.9 inches, and the largest walleye measured was a 29.6-inch fish. Northern Pike (Table 2, Figure 2) Fishing effort directed at northern pike was 183 hours during the 2016-17 season. Northern pike fishing effort was greatest in July (98 hours). Total catch of northern pike was 83 fish with a harvest of 19 fish. The mean length of harvested northern pike was 25.8 inches, and the largest northern pike measured was a 27.5-inch fish. Muskellunge (Table 2, Figure 3) Anglers spent 1,274 hours targeting muskellunge during the 2016-17 season. Muskellunge fishing effort was greatest in October (383 hours). There was no documented catch or harvest of muskellunge during the survey. Smallmouth Bass (Table 2, Figure 4) Fishing effort targeted at smallmouth bass was 1,866 hours during the 2016-17 season. Smallmouth bass fishing effort was greatest in June (470 hours). Total catch of smallmouth bass was 874 fish, with 8 harvested. Highest catch (414 fish) occurred in May. Anglers fished an average of 2.6 hours to catch a smallmouth bass during the survey.

4

Largemouth Bass (Table 2, Figure 5) Fishing effort directed at largemouth bass was 164 hours during the 2016-17 season. Largemouth bass fishing effort was greatest in October (104 hours). Total catch of largemouth bass was 64 fish, with no documented harvest. Highest catch (21 fish) occurred in May. Anglers fished an average of 101.0 hours to catch a largemouth bass during the survey. Lake Trout (Table 2, Figure 6) There were 3,014 hours of lake trout fishing effort during 2016-17 fishing season. The greatest effort occurred during the month of July (1,172 hours). Total catch was 683 fish, with 24 harvested. Anglers fished 5.6 hours to catch, and 124.8 hours to harvest, a lake trout during the survey. Cisco (Lake Herring) (Table 2, Figure 7) Fishing effort targeted at ciscoes was 181 hours during the 2016-17 season. Cisco fishing effort was greatest in January (104 hours). Total catch of ciscoes was 112 fish, with 20 harvested. Highest catch (58 fish) occurred in January. Anglers fished an average of 3.4 hours to catch a cisco during the survey. Lake Whitefish (Table 2, Figure 8) Fishing effort targeted at lake whitefish was 2,405 hours during the 2016-17 season. Lake whitefish fishing effort was greatest in February (971 hours). Total catch of lake whitefish was 920 fish, with 557 harvested. Highest catch (315 fish) occurred in February. Anglers fished an average of 2.8 hours to catch a lake whitefish during the survey. The mean length of harvested lake whitefish was 15.2 inches. Panfish (Table 2, Figures 9-10) Yellow Perch were the most sought after panfish species during the survey. Fishing effort directed at yellow perch was

1,053 hours. Total catch of yellow perch was 3,479 fish, with 610 being harvested. The mean length of yellow perch harvested was 9.4 inches. Bluegills received 143 hours of directed fishing effort, with 24 bluegills caught, and 11 harvested. Black Crappies received 27 hours of directed fishing effort, with no documented catch or harvest. Pumpkinseeds and Rock Bass were also caught in low numbers during the 2016-17 season. ACKNOWLEDGMENTS Completion of this survey was possible because of the efforts of the following fisheries management and treaty fisheries staff: Lawrence Eslinger, Jeff Blonski, Joelle Underwood, Jason Halverson, Steve Gilbert, and Tim Tobias. Matt Meulemans, John Davis, Mike Rynski, Eric Brown, and Doug Day were the creel clerks on Trout Lake during the survey period. We thank all the anglers who took the time to offer information about their fishing trip to the survey clerk. Without their cooperation the survey would not have been possible. The Department thanks our cooperators, Jim Wallner and Trout Lake Forestry Headquarters, who generously allowed the department to keep a boat and/or snowmobile on their property during this survey. This creel report was reviewed by John Kubisiak, Lawrence Eslinger, and Hadley Boehm of the Wisconsin Department of Natural Resources, Woodruff, Wisconsin. Additional copies of this report, and those covering other local lakes, can be obtained from the Woodruff DNR or online at: http://dnr.wi.gov/topic/Fishing/north/trtycrlsrvys.html

5

Table 1. Sportfishing effort summary, Trout Lake, 2016-17 season.

Month

Number of Angler Party

InterviewsTotal Angler

HoursTotal Angler Hours/Acre

2013-14 Total Angler

Hours/Acre

Vilas County Average

Hours/Acre

Ceded Territory Average

Hours/AcreMay 123 5317 1.4 1.3 5.3 4.9June 72 2525 0.7 1.4 6.9 6.3July 87 3580 0.9 0.9 7.3 6.7August 68 2497 0.7 0.6 6.4 5.4September 46 1909 0.5 0.5 4.2 3.3October 69 1267 0.3 0.2 2.0 1.5December 7 152 0.0 0.2 0.7 1.1January 40 836 0.2 0.3 1.1 1.7February 26 1061 0.3 0.1 1.2 1.6March 5 115 0.0 0.0 0.1 0.2*Summer Total 465 17094 4.5 5.0 32.1 28.1*Winter Total 78 2164 0.6 0.7 3.1 4.6Grand Total 543 19258 5.0 5.7 35.2 32.7

*"Summer" is May-October; "Winter" is December-March

County Average Hours/Acre is the average angler effort in hours per acre for county lakes that have been surveyed since 1990. This value is useful for fishing pressure comparisons with other waters.

Ceded Territory Average Hours/Acre is the average angler effort in hours per acre for inland lakes in the Ceded Territory that have been surveyed since 1990. This value can be used to compare Trout Lake to other lakes in northern Wisconsin.

Number of Angler Party Interviews is the number of groups of anglers interviewed by the creel clerk. A party is considered the members of a group who fish together in the same boat, ice shanty, or from shore. The clerk fills out one interview form for each group of anglers. The number of individual anglers actually contacted by the clerk is usually much greater than the number of groups listed in this table since most groups consist of more than one angler.

Total Angler Hours is the estimated total number of hours that anglers spent fishing on Trout Lake during each month surveyed.

Total Angler Hours/Acre is the total angler hours divided by the area of the lake in acres. This is useful in order to compare effort on Trout Lake to other lakes.

2013-14 Total Angler Hours/Acre is the total angler hours divided by the area of the lake in acres. This is from the previous creel survey that took place on Trout Lake.

Table 2. Comparison of creel survey synopses, Trout Lake, 2016-17 and 2013-14 fishing seasons.

CREEL YEAR: 2016-17

SPECIES

DIRECTEDEFFORT(Hours)

PERCENTOF TOTAL

TOTALCATCH

SPECIFICCATCHRATE

(Hrs/Fish) *TOTAL

HARVEST

SPECIFICHARVEST

RATE(Hrs/Fish) **

MEANLENGTH OFHARVESTED

FISHWalleye 10543 57.1% 2083 5.1 902 11.8 17.9Northern Pike 183 1.0% 83 8.3 19 12.3 25.8Muskellunge 1274 6.9% 0 0Smallmouth Bass 1866 10.1% 874 2.6 8 243.9 18.5Largemouth Bass 164 0.9% 64 101.0 0Lake Trout 3014 29.2% 683 5.6 24 125.0 32.1Yellow Perch 1053 5.7% 3479 0.4 610 1.9 9.4Bluegill 143 0.8% 24 9.0 11 12.9 7.8Black Crappie 27 0.1% 0 0Pumpkinseed 0 0.0% 8 0Rock Bass 5 0.0% 70 0Cisco 181 1.0% 112 3.4 20 14.7 9.3Whitefish 2405 23.3% 920 2.8 557 4.7 15.26

* A blank cell in this column indicates that no fish of a given species were caught by anglers who specifically targeted that species.** A blank cell in this column indicates that no fish of a given species were harvested by anglers who specifically targeted that species.

CREEL YEAR: 2013-14

SPECIES

DIRECTEDEFFORT(Hours)

PERCENTOF TOTAL

TOTALCATCH

SPECIFICCATCHRATE

(Hrs/Fish) *TOTAL

HARVEST

SPECIFICHARVEST

RATE(Hrs/Fish) **

MEANLENGTH OFHARVESTED

FISHWalleye 14080 55.9% 4289 3.3 2084 6.8 18.4Northern Pike 445 1.8% 59 69.9 6 69.9 20.3Muskellunge 1714 6.8% 6 285.7 0Smallmouth Bass 2566 10.2% 1183 3.2 4 714.3 19.3Largemouth Bass 571 2.3% 41 28.7 0Lake Trout 1422 13.3% 514 4.4 6 250.0 31.5Yellow Perch 632 5.7% 826 2.0 235 5.6 8.9Bluegill 307 1.2% 130 2.5 34 9.0 7.4Black Crappie 128 1.2% 17 7.6 17 7.6 10.5Pumpkinseed 194 1.8% 3 3 6.8Rock Bass 0 0.0% 3 3 7.0Cisco 145 0.6% 170 4.3 24 6.1 8.9Whitefish 2986 11.9% 1060 2.9 1001 3.0 16.7

Figure 1. Walleye sportfishing effort, catch, harvest, and length distribution, Trout Lake, during 2016-17 season.

7

4.9 3.0 4.2 9.521.1

13.40.0

12.20.0 0.0

8.5 15.1 12.3 16.3

147.1

20.9

0.0

24.4

0.0 0.00.0

40.0

80.0

120.0

160.0

MAY JUN. JUL. AUG. SEP. OCT. DEC. JAN. FEB. MAR.

HO

UR

S PE

R F

ISH

MONTH

PROJECTED SPECIFIC CATCH AND HARVEST RATES

CATCH HARVEST

954

480 450

100 38 47 0 15 0 0

544

95160

58 5 31 0 9 0 00

300

600

900

1200


NU

MB

ER O

F FI

SH

MONTH

PROJECTED CATCH AND HARVEST

CATCH HARVEST

28

34

39

32

24

1 2 2 2 1 2

0

10

20

30

40

50

7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

NU

MB

ER O

F FI

SH

INCHES

LENGTH DISTRIBUTION OF FISH MEASURED BY THE CREEL CLERK

17.8 18.5 17.1 17.7

26.0

18.119.7

29.6 29.0

19.3 19.0

26.0

19.522.5

0

5

10

15

20

25

30

35


INC

HES

MONTH

AVERAGE AND LARGEST LENGTH OFFISH HARVESTED

AVERAGE LARGEST

4618

14351874

952 796 609

35 150 58 160

1000

2000

3000

4000

5000


ANG

LIN

G H

OU

RS

MONTH

PROJECTED FISHING EFFORT

WALLEYE

Figure 2. Northern pike sportfishing effort, catch, harvest, and length distribution, Trout Lake, during 2016-17 season.

8

0.0 0.0 0.0

5.1

0.0 0.0 0.0 0.0

2.2

0.00.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

2.2

0.00.0

2.0

4.0

6.0


HO

UR

S PE

R F

ISH

MONTH


CATCH HARVEST

37

6 8

14

03

0 0

15

04

0 0 0 0 0 0 0

15

00

10

20

30

40


NU

MB

ER O

F FI

SH

MONTH


CATCH HARVEST

1 1

2

0

1

2

3

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35

NU

MB

ER O

F FI

SH

INCHES


27.225.4

27.2 27.5

0

10

20

30

40


INC

HES

MONTH


AVERAGE LARGEST

0

16

98

37

0

32

0

30

60

90

120


ANG

LIN

G H

OU

RS

MONTH

PROJECTED FISHING EFFORT NORTHERN PIKE

Figure 3. Muskellunge sportfishing effort, catch, harvest, and length distribution, Trout Lake, during 2016-17 season.

9

353

133

218187

383

0

100

200

300

400

500


ANG

LIN

G H

OU

RS

MONTH


MUSKELLUNGE

Figure 4. Smallmouth bass sportfishing effort, catch, harvest, and length distribution, Trout Lake, during 2016-17 season.

10

1.2 1.8

13.6 13.3 15.56.8

0.0 0.0 0.0 0.00.0 0.0

54.3

0.0 0.0

74.1

0.0 0.0 0.0 0.00.0

20.0

40.0

60.0

80.0


HO

UR

S PE

R F

ISH

MONTH


CATCH HARVEST

414

262

30 3586

470 0 0 00 0 4 0 0 3 0 0 0 0

0

100

200

300

400

500


NU

MB

ER O

F FI

SH

MONTH


CATCH HARVEST

2

0

1

2

3

5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

NU

MB

ER O

F FI

SH

INCHES

LENGTH DISTRIBUTION OF FISH MEASURED BY THE CREEL CLERK 18.5 18.7

0

4

8

12

16

20


INC

HES

MONTH


AVERAGE LARGEST

449470

234 224248 241

0

100

200

300

400

500


ANG

LIN

G H

OU

RS

MONTH

PROJECTED FISHING EFFORTSMALLMOUTH BASS

Figure 5. Largemouth bass sportfishing effort, catch, harvest, and length distribution, Trout Lake, during 2016-17 season.

11

0.0 0.0 0.0 0.0 0.0

64.1

0.0 0.0 0.0 0.00.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.00.0

20.0

40.0

60.0

80.0


HO

UR

S PE

R F

ISH

MONTH


CATCH HARVEST

21

68

1311

5

0 0 0 00 0 0 0 0 0 0 0 0 00

5

10

15

20

25

MAY JUN. JUL. AUG. SEP. OCT. DEC. JAN. FEB. MAR.N

UM

BER

OF

FISH

MONTH


CATCH HARVEST

0 0

60

0 0

104

0

30

60

90

120


ANG

LIN

G H

OU

RS

MONTH


LARGEMOUTH BASS

Figure 6. Lake Trout sportfishing effort, catch, harvest, and length distribution, Trout Lake, during 2016-17 season.

12

7.2 4.2 4.0 9.7 6.6 0.0 0.0 0.0 0.0 0.00.0

39.5

151.5

92.6

0.0 0.0 0.0 0.0 0.0 0.00.0

40.0

80.0

120.0

160.0


HO

UR

S PE

R F

ISH

MONTH


CATCH HARVEST

74 61

294

9869

11 534 17 19

0 6 8 10 0 0 0 0 0 00

100

200

300

400


NU

MB

ER O

F FI

SH

MONTH


CATCH HARVEST

31.2 29.7

35.1

29.731.2 29.7

35.6

29.7

0

10

20

30

40


INC

HES

MONTH


AVERAGE LARGEST

237 243

1172

950

386

26 0 0 0 00

300

600

900

1200

1500


ANG

LIN

G H

OU

RS

MONTH


2

1 1 1

0

2

4

3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55

NU

MB

ER O

F FI

SH

INCHES


LAKE TROUT

Figure 7. Ciscos sportfishing effort, catch, harvest, and length distribution, Trout Lake, during 2016-17 season.

NO PICTURE AVAILABLE

13

0.0 0.0 0.0 0.0 0.0 0.0 0.0

2.6

5.5

0.00.0 0.0 0.0 0.0 0.0 0.0 0.0

8.5

0.0 0.00.0

2.0

4.0

6.0

8.0

10.0


HO

UR

S PE

R F

ISH

MONTH


CATCH HARVEST

0 0 07

0 05

58

29

13

0 0 0 0 0 0 0

15

50

0

20

40

60

80


NU

MB

ER O

F FI

SH

MONTH


CATCH HARVEST

1 1

0

1

2

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

NU

MB

ER O

F FI

SH

INCHES


9.5

8.0

11.6

8.0

0

3

6

9

12

15


INC

HES

MONTH


AVERAGE LARGEST

0 0

104

77

00

40

80

120


ANG

LIN

G H

OU

RS

MONTH

PROJECTED FISHING EFFORT CISCO OR LAKE HERRING

Figure 8. Lake Whitefish sportfishing effort, catch, harvest, and length distribution, Trout Lake, during 2016-17 season.

NO PICTURE AVAILABLE

14

LAKE WHITEFISH

0.0 0.0 0.0

9.55.0

1.16.6

2.3 3.1 3.90.0 0.0 0.0

9.55.9 3.5

52.1

3.7 4.7 5.2

0.0

15.0

30.0

45.0

60.0


HO

UR

S PE

R F

ISH

MONTH


CATCH HARVEST

536 0

21 36

128

22

314 315

25370 0

21 31 443

199 205

19

0

100

200

300

400


NU

MB

ER O

F FI

SH

MONTH


CATCH HARVEST

8

15

10 10

6

18

25

30

14

10

10

20

30

40

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

NU

MB

ER O

F FI

SH

INCHES


17.515.9

16.9 16.6

12.614.4 15.3

16.918.8 18.9 18.7 18.1

12.6

19.518.2 18.0

0

5

10

15

20

25


INC

HES

MONTH


AVERAGE LARGEST

0 0

135 184 140 144

732

971

99

0

300

600

900

1200


ANG

LIN

G H

OU

RS

MONTH


Figure 9. Yellow perch sportfishing effort, catch, harvest, and length distribution, Trout Lake, during 2016-17 season.

15

0.60.2 0.3

1.1

0.3 0.2 0.0 0.0 0.0 0.00.0

1.3

4.5

3.1

1.5

0.40.0 0.0 0.0 0.0

0.0

1.0

2.0

3.0

4.0

5.0


HO

UR

S PE

R F

ISH

MONTH


CATCH HARVEST

33226

1524

252

1122

314

0 3 5 012 40 102 80197 178

0 0 0 00

400

800

1200

1600

2000


NU

MB

ER O

F FI

SH

MONTH


CATCH HARVEST

2

6

19

14

12 12

2

0

5

10

15

20

3 4 5 6 7 8 9 10 11 12 13 14

NU

MB

ER O

F FI

SH

INCHES


11.3

7.98.5

9.6 9.6 9.9

11.8

9.7

11.2 11.1 11.1

12.8

0

2

4

6

8

10

12

14


INC

HES

MONTH


AVERAGE LARGEST

1347

427

226 243

66

8 023

0

100

200

300

400

500


ANG

LIN

G H

OU

RS

MONTH


YELLOW PERCH

Figure 10. Bluegill sportfishing effort, catch, harvest, and length distribution, Trout Lake, during 2016-17 season.

16

0.0 0.0

13.1

0.0 0.01.0

0.0 0.0 0.0 0.00.0 0.0

13.1

0.0 0.0

2.6

0.0 0.0 0.0 0.00.0

4.0

8.0

12.0

16.0


HO

UR

S PE

R F

ISH

MONTH


CATCH HARVEST

0 0

16

0 0

8

0 0 0 00 0

8

0 0

3

0 0 0 00

5

10

15

20


NU

MB

ER O

F FI

SH

MONTH


CATCH HARVEST

2

0

1

2

3

3 4 5 6 7 8 9 10

NU

MB

ER O

F FI

SH

INCHES


7.8 7.9

0

2

4

6

8

10


INC

HES

MONTH


AVERAGE LARGEST

5

102

27

9

0

40

80

120


ANG

LIN

G H

OU

RS

MONTH


BLUEGILL

trout lake · the 2016-17 fishing season ran from may 7, 2016 through march 5, 2017. the open water...

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