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Smolt Migration 2006 (preliminary results)

Smolt Migration 2006 (preliminary results). Fish Passage Center. Review of 2006 Smolt Migration. Run Size Timing Spread-the-risk delayed transport Subyearling survival & summer spill. Yearling Chinook Population Index at Lower Granite and Hatchery Releases.

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Smolt Migration 2006 (preliminary results)

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  1. Smolt Migration 2006(preliminary results) Fish Passage Center

  2. Review of 2006 Smolt Migration • Run Size • Timing • Spread-the-risk delayed transport • Subyearling survival & summer spill

  3. Yearling Chinook Population Index at Lower Granite and Hatchery Releases

  4. Combined H&W Steelhead Population at Lower Granite and Hatchery Releases

  5. Timing of Spring Migrants at Lower Granite

  6. Wild PIT-tagged Yearling Chinook Timing at LGR and wild run at large

  7. Wild PIT-tag Steelhead Timing at Lower Granite and Combined run at large

  8. Run at Large ST & CH 10Yr Avg Timing at LGR

  9. Summary of 2006 Transport • P(T) = [CElgr + CElgs*(1-CElgr) + CElmn*(1-CElgs)(1-CElgr)]*Prop(Pop)

  10. Other ways to measure transport proportion • P(T) = P(t)* Prop(Pop) • P(t) = CElgr + CElgs*(1-CElgr) + CElmn*(1-CElgs)(1-CElgr) • P(Unc) = (1-CElgr)(1-CElgs)(1-CElmn) • P(InRiv) = Prop(Pop)*[P(Unc)*Slgs*Slmn] + (1-Prop(pop))*Slgs*Slmn • P(Tran) = Prop(Pop)*[CElgr + CElgs*(1-CElgr)* Slgs + CElmn*(1-CElgs)(1-CElgr)*Slgs*Slmn] • P(Byp) = [CElgr + Slgs*CElgs*(1-CElgr) + Slmn*CElmn*(1-CElgs)(1-CElgr)]*(1- Prop(Pop))

  11. Hatchery/Supplementation Releases of Subyearling Chinook above LGR

  12. Subyearling Chinook Timing at LGR

  13. Survival for Production Subyearling Chinook LGR to McN 1998 to 2006 with 95% CI’s

  14. Weighted Regression example

  15. AH Subyearling Chinook Survival vs Avg Spill Pct LGS, LMN, IHR, McN

  16. AH Subyearling Chinook Survival vs sum WTT LGS, LMN, IHR, McN

  17. AH Subyearling Chinook Survival vs Avg Temp LGS, LMN, IHR, McN

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