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Passage and Survival of Spring Migrants at Ice Harbor Dam - 2006 Study

Analyzing fish migration at Ice Harbor Dam in 2006 using different spill percentages and turbine operations to study passage and survival rates of Chinook and Steelhead. The data includes flow rates and specific turbine and spill bay configurations.

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Passage and Survival of Spring Migrants at Ice Harbor Dam - 2006 Study

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  1. Project operations at Ice Harbor Dam for radio-tagged spring migrants, 2006

  2. 23.8% 22.1% 18.3% 11.1% First approach and passage distribution: 30-40% Spill Percent of fish RSW Bypass Turbine 2 Turbine 3 Spill bay 1 Spill bay 6 Turbine 1 Turbine 4 Turbine 5 Turbine 6 Spill bay 3 Spill bay 5 Spill bay 7 Spill bay 9 Spill bay 4 Spill bay 8 Spill bay 10 Flow

  3. 46.2% 49.2% 29.8% 19.5% First approach and passage distribution: BiOp Spill Percent of fish RSW Bypass Turbine 2 Turbine 3 Spill bay 1 Turbine 1 Turbine 4 Turbine 5 Turbine 6 Spill bay 3 Spill bay 5 Spill bay 7 Spill bay 9 Spill bay 4 Spill bay 6 Spill bay 8 Spill bay 10 Flow

  4. Chinook: Passage metrics by spill treatment

  5. Steelhead: Passage metrics by spill treatment

  6. Chinook: Survival by spill treatment

  7. Steelhead: Survival by spill treatment

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