salmonid population dynamics in the Entiat with lifecycle models James Murphy Keith Van Den Broek Tom Degroseillier Terraqua Inc ISEMP CHaMP USFWS ISEMP lifecycle models for chinook and steelhead ID: 650744
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Slide1
Assessing impact of restoration on salmonid population dynamics in the Entiat with life-cycle models
James Murphy, Keith Van Den
Broek
, Tom
Degroseillier
Terraqua
Inc
/ ISEMP /
CHaMP
/ USFWSSlide2
ISEMP life-cycle models for chinook and steelhead Life-cycle models that utilize ISEMP and CHaMP data. Focus on tributary spawning/rearing dynamics.
In development for John Day, Lemhi, Salmon,
Entiat.
ISEMP life-cycle models: Integrating restoration and population dynamics
f
reshwater
survival
freshwater
carrying capacity
restoration
population
dynamicsSlide3
Ongoing work for ISEMP and Entiat models
Developing fish – habitat relationships
Regression models with CHaMP data (field sampling, DEMs) NREI modeling
Incremental flow methodology analyses Habitat-survival functional relationships
Survival estimationMovement analysesConsideration of summer chinook dynamics / multi-species models Slide4
v
alley
s
egment 3
v
alley
s
egment 1
v
alley
s
egment 2
Mad
River
Pool volume per
CHaMP
site: 2013
1
2
3
v
alley segments
Entiat
Spring Chinook Life Cycle Model
- Spatial structure -
upstreamSlide5
PIT tag marking6 interrogators + RSTSurvival estimationMovement and emigration
Parr overwinter survival by area
Entiat
Spring Chinook Life Cycle Model
- Overwinter survival - Slide6
Time spent in valley segment 1
f
or fish tagged in upper
Entiat
: 2011-2013counts
Number of days
median = 2 days
Entiat Spring Chinook Life Cycle Model
- Parr movement - Slide7
Entiat Spring Chinook Life Cycle Model
- Emigration -
counts
Julian day
Emigration timing by summer
parr
location:
detections at screw trap and ENL array at mouth
yearling
subyearling
valley segment 3
valley segment 2
v
alley segment 1