Coded Wire Tag Studies on Prince William Sound Salmon, 1989-1991. Fish/ShellfishStudy Number 3. EXXON VALDEZ Oil Spill State/Federal Natural Resource Damage Assessment Final Report

摘要

Following the Exxon Valdez oil spill, wild and hatchery juvenile pink salmon werecoded wire tagged to evaluate damages and improve management strategies. Tagging rates were sufficiently high to allow adequate numbers of marks to be recovered in the fishery catches, brood stock, and streams. Results indicated that 5.3 million (24%) of the 22.5 million pink salmon caught in 1989 were of wild origin. There were no significant differences in survival rates for pink salmon originating from oiled and unoiled streams in 1990 or 1991. In additon to meeting damage assessment objectives, the coded wire tagging program has furnished information critical to management decisions associated with restoration of damaged wild salmon stocks.