Notes
Slide Show
Outline
1
Smolt Migration 2006
(preliminary results)

  • Fish Passage Center
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Review of 2006 Smolt Migration
  • Run Size
  • Timing
  • Spread-the-risk delayed transport
  • Subyearling survival & summer spill
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Yearling Chinook Population Index at Lower Granite and Hatchery Releases
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Combined H&W Steelhead Population at Lower Granite and Hatchery Releases
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Timing of Spring Migrants at Lower Granite
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Wild PIT-tagged Yearling Chinook Timing at LGR and wild run at large
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Wild PIT-tag Steelhead Timing at
Lower Granite and Combined run at large
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Run at Large ST & CH 10Yr Avg Timing at LGR
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Summary of 2006 Transport
  • P(T) = [CElgr + CElgs*(1-CElgr) + CElmn*(1-CElgs)(1-CElgr)]*Prop(Pop)
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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 + CElgs*(1-CElgr) + CElmn*(1-CElgs)(1-CElgr)  (*1- Prop(Pop))
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Hatchery/Supplementation Releases of Subyearling Chinook above LGR
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Subyearling Chinook Timing at LGR
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Survival for Production Subyearling Chinook
LGR to McN 1998 to 2006 with 95% CI’s
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Weighted Regression example
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AH Subyearling Chinook Survival vs Avg Spill Pct LGS, LMN, IHR, McN
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AH Subyearling Chinook Survival vs sum WTT  LGS, LMN, IHR, McN
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AH Subyearling Chinook Survival vs Avg Temp LGS, LMN, IHR, McN