Run reconstruction and life-history model. Fish/shellfish study number 28. Exxon Valdez oil spill state/federal natural resource damage assessment final report
The Exxon Valdez oil spill resulted in contaminants of juvenile pink salmon (Oncorhynchus gorbuscha) habitat, including freshwater spawning areas in southwestern Prince William Sound (PWS). The authors estimated the loss of returning wild adult pink salmon in 1990-1992, and speculated about this loss in 1993-1994. The primary cause of death was direct poisoning in the embryo stage of development. These studies have low statistical power to detect oil spill effects in the pre- and post- emergent fry and ocean life stages, therefore the true extent of the injury may be understated. The egg-mortality levels increased in the oiled areas in the 1991 and 1992 brood years. The authors also report on a run-reconstruction model, a deterministic model that assumed Markovian transition probabilities for the migration of each individual stock. The authors` most important finding is that of excessive harvest rates on pink salmon stocks in the northern and northwestern part of PWS.
- Research Organization:
- Alaska Dept. of Fish and Game, Juneau, AK (United States). Commercial Fisheries Management and Development Div.
- OSTI ID:
- 385319
- Report Number(s):
- PB-96-208418/XAB; TRN: 62752448
- Resource Relation:
- Other Information: PBD: Aug 1995
- Country of Publication:
- United States
- Language:
- English
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