Research Plan to Determine Timing, Location, Magnitude and Cause of Mortality for Wild and Hatchery Spring/Summer Chinook Salmon Smolts Above Lower Granite Dam. Final Report. [electronic resource]
Chinook Salmon - Washington (state) - Mortality.
Saved in:
| Online Access: |
Online Access |
|---|---|
| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Portland, Ore. : Oak Ridge, Tenn. :
United States. Bonneville Power Administration ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy,
1993.
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| Subjects: |
MARC
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| 245 | 0 | 0 | |a Research Plan to Determine Timing, Location, Magnitude and Cause of Mortality for Wild and Hatchery Spring/Summer Chinook Salmon Smolts Above Lower Granite Dam. Final Report. |h [electronic resource] |
| 260 | |a Portland, Ore. : |b United States. Bonneville Power Administration ; |a Oak Ridge, Tenn. : |b distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, |c 1993. | ||
| 300 | |a 81 pages : |b digital, PDF file. | ||
| 336 | |a text |b txt |2 rdacontent. | ||
| 337 | |a computer |b c |2 rdamedia. | ||
| 338 | |a online resource |b cr |2 rdacarrier. | ||
| 500 | |a Published through the Information Bridge: DOE Scientific and Technical Information. | ||
| 500 | |a 10/01/1993. | ||
| 500 | |a "doe/bp-61176-1" | ||
| 500 | |a "DE94007088" | ||
| 500 | |a Lower Granite Migration Study Steering C. | ||
| 500 | |a Lower Granite Migration Study Steering Committee (United States) | ||
| 513 | |a Final; |b 12/31/1993. | ||
| 520 | 3 | |a From 1966 to 1968, Raymond estimated an average survival rate of 89% for yearling chinook salmon (Oncorhynchus tshawytscha) migrating from trap sites on the Salmon River to Ice Harbor Dam, which was then the uppermost dam on the Snake River. During the 1970s, the estimated survival rate declined as the proportion of hatchery fish increased and additional dams were constructed. Recent survival indices for yearling chinook salmon smolts in the Snake River Basin indicate that substantial mortalities are occurring en route to Lower Granite Dam, now the uppermost dam on the Snake River. Detection rates for wild and hatchery PIT-tagged smolts at Lower Granite Dam have been much lower than expected. However, for wild fish, there is considerable uncertainty whether overwinter mortality or smolt loss during migration is the primary cause for low survival. Efforts to rebuild these populations will have a better chance of success after the causes of mortality are identified and addressed. Information on the migrational characteristics and survival of wild fish are especially needed. The goal of this initial planning phase is to develop a research plan to outline potential investigations that will determine the timing, location, magnitude, and cause of smolt mortality above Lower Granite Dam. | |
| 520 | 0 | |a Chinook Salmon - Washington (state) - Mortality. | |
| 536 | |b DE-A179-92BP61176. | ||
| 650 | 7 | |a Progress Report. |2 local. | |
| 650 | 7 | |a Salmon. |2 local. | |
| 650 | 7 | |a Fisheries. |2 local. | |
| 650 | 7 | |a Mortality. |2 local. | |
| 650 | 7 | |a Migration. |2 local. | |
| 650 | 7 | |a Predator-prey Interactions. |2 local. | |
| 650 | 7 | |a Hydro Energy. |2 edbsc. | |
| 710 | 1 | |a United States. |b Bonneville Power Administration. |4 spn. | |
| 710 | 1 | |a United States. |b Department of Energy. |b Office of Scientific and Technical Information. |4 dst. | |
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| 952 | f | f | |p Can circulate |a University of Colorado Boulder |b Online |c Online |d Online |e E 1.99:doe/bp-61176-1 |h Superintendent of Documents classification |i web |n 1 |