Stock identification of chum, sockeye, chinook, and coho salmon in Prince William Sound. Restoration projects 93068 and 94137. Exxon Valdez oil spill restoration project final report
Coded wire tags were applied to sockeye, chum, coho, and chinook salmon at three hatcheries in Prince William Sound, and also to three populations of wild sockeye salmon. Two of these populations were situated in contaminated areas of the Sound, while the other was located in an area distant from the trajectory of the oil plume. Contributions of different hatchery and wild release groups to specific harvest-district-week strata were estimated from recoveries of tags in the commercial fishery, and in the escapements of the wild sockeye populations. Tag-specific survival rates were also estimated where possible. As expected, the proportion of fish from wild populations in the commercial catches decreased with increasing releases of hatchery fish. Significant relationships between release size and survival rates were detected for sockeye salmon.
- Research Organization:
- Alaska Dept. of Fish and Game, Anchorage, AK (United States). Commercial Fisheries Management and Development Div.
- OSTI ID:
- 572352
- Report Number(s):
- PB-98-115447/XAB; TRN: 80331631
- Resource Relation:
- Other Information: DN: See also PB--96-196878 and PB--96-196936; PBD: Aug 1996
- Country of Publication:
- United States
- Language:
- English
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