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Migration Depths Of Adult Steelhead In The Lower Columbia And Snake Rivers In Relation To Dissolved Gas Exposure, 2000 Item Info
- Title:
- Migration Depths Of Adult Steelhead In The Lower Columbia And Snake Rivers In Relation To Dissolved Gas Exposure, 2000
- Report Type:
- Technical Report
- Date:
- 2008
- Authors:
- Johnson, E.L.; Clabough, T.S.; Peery, C.A.; Bjornn, T.C.; Stuehrenberg, L.C.
- Affiliations:
- Fish and Wildlife Sciences, University of Idaho; National Marine Fisheries Service, National Oceanic and Atmospheric Administration
- Report Number:
- 2008-1
- Publisher:
- University of Idaho
- Funder:
- U.S. Army Corps of Engineers, Portland District; U.S. Army Corps of Engineers, Walla Walla District
- Abstract:
- High spill volume at dams can create supersaturated dissolved gas conditions that may have negative effects on fishes. Water spilling over Columbia and Snake River dams during the spring and summer freshet creates plumes of high dissolved gas that extend downstream of dam spillways and creates gas supersaturated conditions that do not equilibrate in reservoirs. During 2000, 201-adult steelhead Oncorhynchus mykiss were tagged at Bonneville Dam with archival radio data storage transmitters (RDSTs) that recorded depth and water temperature as they migrated through tailraces and reservoirs of lower Columbia and Snake River dams. Migration depth plays a central role in the development and expression of gas bubble disease because hydrostatic compensation reduces the effects of exposure at greater depths. Swimming depths from 115 of the 201 adult steelhead tagged with RDSTs were used to estimate the degree of exposure to various dissolved gas conditions in the lower Columbia and Snake rivers. Migration paths of 28 individual fish tagged with RDSTs were monitored in the tailraces of Bonneville and Ice Harbor dams and combined with output from a two-dimensional dissolved gas model to estimate the degree of uncompensated dissolved gas exposure.
- Species:
- Steelhead, Oncorhynchus mykiss
- Location:
- Bonneville Dam; Columbia River; Snake River; Lower Granite Dam; The Dalles Dam; John Day Dam; McNary Dam; Ice Harbor Dam; Lower Monumental Dam; Little Goose Dam
- Subjects:
- salmonids Federal Columbia River Power System FCPRS radiotelemetry dissolved gas concentrations migration depth fish physiology gas bubble disease
- Source:
- University of Idaho, Fish Ecology Research Lab
- Original Filename:
- 2008-01-SH-depths-in-relation-to-dissolved-gas-lower-Columbia-River-2000.pdf
- Format:
- application/pdf
Source
- Preferred Citation:
- "Migration Depths Of Adult Steelhead In The Lower Columbia And Snake Rivers In Relation To Dissolved Gas Exposure, 2000", Adult Salmon and Steelhead Migration Studies: 1996-2014, University of Idaho Library Digital Collections, https://www.lib.uidaho.edu/digital/ferl/items/ferl-tr-2008-1.html
Rights
- Rights:
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