Evaluation of Low-Cost Salmon Production Facility, 1987 Annual Report [electronic resource].
- Portland, Ore : United States. Bonneville Power Administration, 1988.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- 46 pages : digital, PDF file
- Additional Creators:
- United States. Bonneville Power Administration
United States. Department of Energy. Office of Scientific and Technical Information
- Activities of the study include investigating the potential for community involvement; evaluating natural outmigration of smolts; providing cumulative production of quality salmon; aiding in development of optimum density levels in earthen rearing ponds; and augmenting a unique ''known stock'' fishery. The coded-wire tagging program was continued to aid in the accomplishment of the objectives. Monitoring of downstream smolt migration from CEDC release sites continued. Data collected is beginning to show that smolt size and stream flow have an effect on smolt migration. Release of comparatively larger smolts and release during elevated stream flows, demonstrates a more rapid migration. Release of larger smolts also enhances adult survival. Smolts released at 9.5 fish/pound suvived by nearly ten times that of smolts released at 16.3 fish/pond and by nearly 5 1/2 times when released at about 13.5 fish/pound. In 1987 the CEDC Fisheries Project reared and released a total of approximately 1.7 million salmon smolts. Coho production was about 300,000, fall chinook at about 1.4 million, and Rogue stock fall chinook a a minimal 20,000. Preliminary overall adult survival figures for 1987 show a 0.69% for tule chinook, 2.89% for Rogue stock fall chinook, and 0.82% for coho. Chinook survival was up from previous years, whereas coho survival appears to be down. 1 ref., 8 figs., 19 tabs.
- Published through SciTech Connect.
Hill, James M.; Olson, Ted.
Clatsop Economic Development Committee
- Funding Information:
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