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2010 work planned, new operations, and wrap up Presenter: Robin Ehlke CSS Annual Meeting Apr 2 nd 2010
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2010 – Work Planned Continue building long-term database Continue building long-term database Monitoring SAR ratesMonitoring SAR rates Passage characteristics and demographic dataPassage characteristics and demographic data Continue coordination/cost saving effortsContinue coordination/cost saving efforts New Snake River Sockeye analysis New Snake River Sockeye analysis New Snake River Chinook tag groups New Snake River Chinook tag groups Additional Snake River Steelhead tagging Additional Snake River Steelhead tagging New upper Columbia tag groups New upper Columbia tag groups Evaluate SARs for PIT tagged and unmarked fish Evaluate SARs for PIT tagged and unmarked fish
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Snake River Sockeye 2009 first year for large tag group 2009 first year for large tag group SBT requested that CSS report include analysis of PIT tag data SBT requested that CSS report include analysis of PIT tag data 2010 report 1 st year for juvenile metrics 2010 report 1 st year for juvenile metrics Future reports to include adult metrics Future reports to include adult metrics
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Snake R. Hatchery Chinook Spring/summer covered upstream of LGR Spring/summer covered upstream of LGR Five major hatcheriesFive major hatcheries Hatchery specific metrics possibleHatchery specific metrics possible 2009 three additional hatcheries 2009 three additional hatcheries Cooperative effortCooperative effort Clearwater, Pahsimeroi and SawtoothClearwater, Pahsimeroi and Sawtooth Now nearly all sp/su hatchery Chinook upstream of LGR are represented Now nearly all sp/su hatchery Chinook upstream of LGR are represented
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Snake R. Hatchery Steelhead 1997-2007 no funding for CSS tags 1997-2007 no funding for CSS tags Aggregate of existing tags groups (10-25K)Aggregate of existing tags groups (10-25K) Limited to metrics for this aggregateLimited to metrics for this aggregate 2008 secured funding, worked cooperatively 2008 secured funding, worked cooperatively All steelhead hatchery releases >LGRAll steelhead hatchery releases >LGR No new tag groups, but able to refine metrics (by hatchery, A run vs. B run)No new tag groups, but able to refine metrics (by hatchery, A run vs. B run) 2010 report first year for juvenile metrics2010 report first year for juvenile metrics
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Upper Columbia Stocks Wild Chinook and Steelhead Wild Chinook and Steelhead Wenatchee, Methow, Okanogan basins Wenatchee, Methow, Okanogan basins Juvenile data available in 2011 report Juvenile data available in 2011 report
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Comparing SARs for PIT tagged and unmarked fish Estimate variability for adult returns used in run-reconstruction SARs Design PIT tag bias studies for several hatcheries in the basin Implement pilot study of PIT tag bias at Carson Hatchery
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Summary – Snake River Travel time and survival rates are strongly influenced by managed river conditions including spill and flow Travel time and survival rates are strongly influenced by managed river conditions including spill and flow Chinook and steelhead exhibited relatively high survival under low flow and high spill conditions of 2007Chinook and steelhead exhibited relatively high survival under low flow and high spill conditions of 2007 Smolt to Adult (SAR) survival for Chinook and steelhead fell well short of the NPCC 2% minimum Smolt to Adult (SAR) survival for Chinook and steelhead fell well short of the NPCC 2% minimum
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Summary – Snake River TIRs and D through 2006-2007 TIRs and D through 2006-2007 Steelhead TIRs >1, Chinook D 1, Chinook D <1 TIRs of both wild Chinook and steelhead variable across years and associated with in-river survival TIRs of both wild Chinook and steelhead variable across years and associated with in-river survival Relative effectiveness of transportation declines as in-river survival increases Relative effectiveness of transportation declines as in-river survival increases
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Summary – Snake River Conditions in both freshwater & ocean environments determine life cycle survival (SARs) Conditions in both freshwater & ocean environments determine life cycle survival (SARs) River conditions during seaward migration have strong influence on first year ocean survival (evidence of delayed mortality) River conditions during seaward migration have strong influence on first year ocean survival (evidence of delayed mortality) Extremely difficult to achieve NPCC SAR goals without major changes to seaward migration conditions in the mainstem Columbia & Snake rivers Extremely difficult to achieve NPCC SAR goals without major changes to seaward migration conditions in the mainstem Columbia & Snake rivers
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Summary – Snake River Transportation negatively affects adult success rate for wild/hatchery steelhead and Chinook Transportation negatively affects adult success rate for wild/hatchery steelhead and Chinook Transported adults strayed at a significantly higher rate than their in-river counterparts Transported adults strayed at a significantly higher rate than their in-river counterparts Hatch. + wild steelhead, hatch. ChinookHatch. + wild steelhead, hatch. Chinook
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Summary Mid/Upper Columbia River stocks Extend time series of CSS metrics for Mid/Upper Columbia River stocks Extend time series of CSS metrics for Mid/Upper Columbia River stocks The mark groups for these populations provide the opportunity to assess hydrosystem management The mark groups for these populations provide the opportunity to assess hydrosystem management
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Questions? Courtesy of Clinton Winn
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