Pacific Lamprey Monitoring and Data Management

Yakama Nation FRMPPacific Lamprey Recovery Project

3/9/2012

Project GoalsThe goal of the Yakama Nation is to restore natural production of Pacific lamprey to a level that will provide robust species abundance, significant ecological contributions and meaningful harvest throughout the Yakama Nations Ceded Lands and in the Usual and Accustomed areas.

Pacific Lamprey Adult Counts

Desperate Times, Desperate Measures

1.6%

Premises• Yakima population is functionally

extirpated

• Our goal is to have hundreds and thousands of juveniles Supplementation a much

needed tool

• Genetics (risk management approach)

Monitoring Projects• Adult passage (radio telemetry)

• Juvenile passage (Prosser Dam) -> index?

• Juvenile present/absence (including canals)• Juvenile index sites (“relative abundance”)

• Water quality impacts on lamprey (adult/juv.)

• Artificial propagation and rearing (methods, feed)

• Supplementation effectiveness (survival and growth)

Juvenile Surveys• Exploratory Survey (Min. Data)

Presence / Absence Quick survey

• Index Survey (Core Data) Relative abundance Annual variation

• Extensive Surveys (Optional Data)

Release from art. prop. Seasonal variation Growth, distribution, habitat

use

Focus• Need a method to measure

“relative abundance” of larvae

Time & Space Consistent

& Coordinated

Precision not important Density can be

misleading

15

15 or 20?

More Important Question:15~100?

100~500?500~1000?

15/m2

= Type 1

50/m2

Is 50/m2 better than 15/m2?

15/m2

15/m2

0 10 20 30 40 50 60 70 80 90 1000

0.20.40.60.8

11.2

Mean Annual Stream Flow (cms)

0 1 2 3 4 5 6 7 8 9 100

0.20.40.60.8

11.2

Calibrated Valley Constraint

0 1 2 3 4 5 6 70

0.20.40.60.8

11.2

Channel Gradient (%)

Intrinsic Potential (IP)Model for Pacific Lamprey

• What is the potential for lamprey habitat?

• Flow • Gradient• Valley Width• (Temperature)

• Flow • >14 cfs

• Gradient• < 2 %

• Valley Width• > 100 ft

Use Existing Data

ODFW Steelhead Survey

Benefits of IP Model for Pacific Lamprey

• Higher efficiency in predicting lower and upper distribution

• Make comparison of density and relative abundancemore meaningful

Spatial Scales• 3 spatial scales

• 10 M: density, habitat features

• 100 M: relative abundance, status and trend

• 1000 M: abundance estimates, status and trend, limiting factors

Analysis Unit 2Analysis Unit 1

Analysis Unit 3

LegendIndex SitesExtensive SitesExploratory Sites

Reach A Reach B

Reach D

Reach CReach E

Reach F

Index Sitesdensity measurements in representative habitat types -> “relative abundance”• ~100 meters• 3-5 plots, fixed and mapped• Each Plot = X amount of area surveyed

over Y amount of time (~10 m)• Long-term

Extensive Sitesgrowth, survival and habitat preference of released propagated larvae.

• ~100 metes • Extensive area surveyed• Location may vary over time

Area Supplemente

d

How to Calculate Abundance??

• Estimate area for Type 1 & 2 Habitat (using habitat surveys)

• Not always available(Larger streams/rivers)

= 250 m2

Core Data

Reach Scale (~1000 m) • Watershed (HUC 5 or 6)• Stream Name• GPS• (River Mile -> identifier)• (Elevation)• (Gradient)• (Sinuosity)

Core DataHabitat Scale (~10 m) • Channel type (riffle, glide, pool)• Habitat Type (% Type 1 & 2)• Plot size• Method (E-fishing, hand net, etc)• Survey time (cpue)• Time of day• Visibility (high, medium, low)• (Conductivity)• (Temperature/DO/pH)• (Riparian / % cover)

Biological Core Data

• Species (at least %)• Life stage• Counts• (Length)• (Weight)

Questions??