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Run-Timing, Escapement, And Harvest Of Upriver Bright Fall Chinook Salmon In The Columbia River, 1998 And 2000-2005 Item Info
- Title:
- Run-Timing, Escapement, And Harvest Of Upriver Bright Fall Chinook Salmon In The Columbia River, 1998 And 2000-2005
- Report Type:
- Technical Report
- Date:
- 2006
- Authors:
- Jepson, M.A.; Keefer, M.L.; Naughton, G.P.; Peery, C.A.; Burke, B.J.
- Affiliations:
- Fish and Wildlife Sciences, University of Idaho; Northwest Fisheries Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration
- Report Number:
- 2006-8
- Publisher:
- University of Idaho
- Abstract:
- During 1998 and 2000-2005, we radiotagged a total of 6,079 adult fall Chinook salmon Oncorhynchus tshawytscha at Bonneville Dam and monitored them as they migrated to upstream spawning sites in the Columbia and Snake River basins. We divided the ‘upriver bright’ (URB) stock of fall Chinook salmon into five subgroups: the Deschutes, Yakima, and Snake rivers, the Hanford Reach, and sites upstream from Priest Rapids Dam. We calculated run-timing statistics past Bonneville Dam during 15-day intervals and estimated annual escapement and harvest values for each subgroup. The relative abundance of adult fish returning to sites upstream from Priest Rapids Dam was as much as half of the run during early August but decreased steadily during the remainder of each migration season. Deschutes, Yakima, and Snake river subgroups typically comprised small (≤13%), but relatively constant proportions of fall Chinook salmon throughout each migration season. During all years, Hanford Reach fish made up increasingly large proportions of the run at Bonneville Dam as each migration season progressed, averaging over three-quarters of the run in early October.
- Species:
- Chinook salmon, Oncorhynchus tshawytscha
- Location:
- Columbia River; Snake River; Deschutes River; Yakima River; Hanford Reach; Bonneville Dam
- Subjects:
- salmonids Federal Columbia River Power System FCPRS radiotelemetry migration passage behavior fishways escapement estimates
- Source:
- University of Idaho, Fish Ecology Research Lab
- Original Filename:
- 2006-08-FC-run-timing-escapement-harvest-1998&2000-2005.pdf
- Format:
- application/pdf
Source
- Preferred Citation:
- "Run-Timing, Escapement, And Harvest Of Upriver Bright Fall Chinook Salmon In The Columbia River, 1998 And 2000-2005", Adult Salmon and Steelhead Migration Studies: 1996-2014, University of Idaho Library Digital Collections, https://www.lib.uidaho.edu/digital/ferl/items/ferl-tr-2006-8.html
Rights
- Rights:
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