Survival estimates of migrant juvenile salmonids through Bonneville Dam using radio telemetry, 2005

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Abstract

During 2005, we evaluated the survival of radio-tagged yearling and subyearling Chinook salmon and steelhead trout through the Bonneville Dam spillway, powerhouses 1 and 2, the corner collector and juvenile bypass system (JBS) at powerhouse 2, and through all routes collectively using the route-specific survival model. Radio-tagged fish were released at The Dalles Dam and in the tailrace of Bonneville Dam and were interrogated at Bonneville Dam and three radio-telemetry arrays below Bonneville Dam. We also evaluated the survival of radio-tagged yearling and subyearling Chinook salmon and steelhead trout using paired releases through the ice and trash sluiceway at Bonneville Dam’s powerhouse 1. Site-specific releases were made directly into the ice and trash sluiceway and in the tailrace of Bonneville Dam below the outfall of powerhouse 2 juvenile bypass system.

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Publication type Report
Publication Subtype Other Government Series
Title Survival estimates of migrant juvenile salmonids through Bonneville Dam using radio telemetry, 2005
Year Published 2006
Language English
Publisher U.S. Army Corps of Engineers
Contributing office(s) Western Fisheries Research Center
Description xvii., 92 p.
Country United States
State Oregon, Washington
Other Geospatial Bonneville Dam, Columbia River, The Dalles Dam
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