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Monitoring and Evaluation of Chinook Salmon Life Stages in Watershed

Explore "Fish In/Fish Out" monitoring results and habitat prioritization in Lake Washington/Cedar/Sammamish Watershed. Learn how Viable Salmonid Population parameters help assess viability and the importance of long-term monitoring for Chinook salmon recovery.

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Monitoring and Evaluation of Chinook Salmon Life Stages in Watershed

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  1. Biological Monitoring in the Lake Washington/Cedar/Sammamish Watershed (WRIA 8):Results of “fish in/fish out” monitoring Sarah McCarthy, WRIA 8 Hans Berge, King County Frank Leonetti, Snohomish County

  2. Lake Washington/ Cedar/Sammamish Watershed • Tiered approach to prioritization of habitat actions. • Subbasins were placed into 3 tiers based on watershed condition and level of use by Chinook salmon: • Core/migratory • Satellite • Episodic/None

  3. “Fish In/Fish Out” Monitoring Objectives: • Document the Status and Trends in VSP parameters • Compare to Plan “targets” and Adaptive Management goals for populations • Improve understanding of those habitat factors affecting Chinook • Estimate Chinook response to restoration actions • Are multiple actions cumulatively affecting habitat conditions and fish populations? Monitoring of multiple Chinook life stages is essential! Primary life stages to monitor: • Adult spawners • Juvenile migrants from streams • Juvenile migrants through the lakes & migratory corridors • Smolt use of nearshore marine areas

  4. Viable Salmonid Population(VSP) Interdependent parameters for evaluating viability: Abundance • How many fish are there at various life stages? Productivity • Is the population growing? Distribution • Don't put all your fish in one stream Diversity • How many life history strategies are present?

  5. Abundance Chinook Sockeye Live Counts Redds

  6. Adipose Fin Presence of Hatchery Fish on Spawning Grounds Photos from NMT website: http://www.nmt-inc.com

  7. Length, Age, and Pre-Spawn Mortality

  8. Juvenile Trapping Photo: WDFW

  9. Map from WDFW

  10. Photo: WDFW

  11. PIT-tag Detectors at Locks Photo: WDFW

  12. Adult Abundance: Escapement Estimate Cedar Escapement Goal Bear/Cottage Goal 2007

  13. Adult Abundance & Distribution: Redds & Landsburg Passage Escapement graphs

  14. Proportion of Hatchery Fish on Spawning Grounds

  15. Age of Hatchery vs. Natural Origin Spawners (Females only)

  16. Pre-Spawn Mortality

  17. Program 2 – Fry/Smolt Trapping Abundance - • Total “fish out” Productivity - • What do we mean? • Survival from life stage to life stage • Full life cycle survival • Population replacement Diversity – • Life history strategies Distribution – …..not so much

  18. Cedar River Abundance – • Wide range in Fry production & variable by year • Smolt production is less variable and has increased since 1998, except recently Jan-April small fry (45mm) migration with later (May-June) larger smolt (60-100mm) migration

  19. Cedar River Figure matches #redds with #smolts produced Big differences in 2000 and 2006 “Resilience” effects (2000) and “Resistance to Catastrophe” (2006)

  20. One Productivity Estimate Lifecycle estimate - redds to redds

  21. Monitoring data analysis & AM framework • Evaluation of vsp parameters compared to targets

  22. Summary – Cedar River • Chinook escapement in 2007 was relatively high. • 2008 should be relatively high barring strong ocean effects • 2009 should be weak – uncertainty is on Ocean effects; • 2010 improved; • 2011 high returns • Spring 2008 outmigration should be highest on record since 1991. • Future expectations based on improved understanding of flow effects on survival, productivity of recolonization group, smolt versus fry abundance, effects from hatchery and harvest, and strong Ocean influence.

  23. Importance • Chinook life history requires consistent long-term annual monitoring to understand status and trends in population dynamics in order to compare to goals for recovery. • Predictive relationships between fish in and fish out data will help devise possible future management actions based on expected fish performance years ahead of time.

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