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Adult Chinook Salmon And Steelhead Dam Passage Behavior In Response To Manipulated Discharge Through Spillways At Bonneville Dam Item Info
- Title:
- Adult Chinook Salmon And Steelhead Dam Passage Behavior In Response To Manipulated Discharge Through Spillways At Bonneville Dam
- Report Type:
- Technical Report
- Date:
- 2006
- Authors:
- Caudill, C.C.; Peery, C.A.; Daigle, W.R.; Jepson, M.A.; Boggs, C.T.; Bjornn, T.C.; Joosten, D.; Burke, B.J.; Moser, M.L.
- Affiliations:
- Fish and Wildlife Sciences, University of Idaho; Northwest Fisheries Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration
- Report Number:
- 2006-5
- Publisher:
- University of Idaho
- Funder:
- U.S. Army Corps of Engineers, Portland District
- Abstract:
- The river conditions encountered at dams in the Columbia-Snake River Basin by returning adult salmonids are strongly affected by discharge over dam spillways (spill) during spring run-off. In recent years, dam operators have altered hydrosystem operations to continue spilling through the summer in an effort to improve survival of downstream migrating smolts. However, this action may slow the migration of adults through a number of mechanisms. During 2000, 2002, and 2003, spill levels at Bonneville Dam were alternated between low (~75 kcfs) and high (85-160 kcfs) spill volume conditions to determine the effects of spill on adult upstream migration behavior. We monitored daily dam counts and the migration of radio-tagged adult spring, summer, and fall Chinook salmon and steelhead as they passed the dam during these two treatments.
- Species:
- Steelhead, Oncorhynchus mykiss Chinook salmon, Oncorhynchus tshawytscha
- Location:
- Columbia River; Snake River; Bonneville Dam
- Subjects:
- salmonids Federal Columbia River Power System FCPRS radiotelemetry migration passage behavior spillways dam spill manipulation
- Source:
- University of Idaho, Fish Ecology Research Lab
- Original Filename:
- 2006-05-CK-SH-passage-behavior-in-response-to-manipulated-discharge-Bonneville-2000-2003.pdf
- Format:
- application/pdf
Source
- Preferred Citation:
- "Adult Chinook Salmon And Steelhead Dam Passage Behavior In Response To Manipulated Discharge Through Spillways At Bonneville Dam", Adult Salmon and Steelhead Migration Studies: 1996-2014, University of Idaho Library Digital Collections, https://www.lib.uidaho.edu/digital/ferl/items/ferl-tr-2006-5.html
Rights
- Rights:
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