Fisheries, Subsistence, and Habitat
Publications Searchable Database
Search Again| Division: | Commercial Fish |
| Title: | Yukon River chum salmon: progress report for genetic stock identification studies July 1, 1992-June 30, 1994 |
| Author: | Crane, P. A., L. W. Seeb and R. B. Gates |
| Year: | 1994 |
| Report ID: | Alaska Department of Fish and Game, Commercial Fisheries Management and Development Division, Regional Information Report 5J94-19, Juneau |
| Abstract: | In 1987 a joint research effort between Alaska Department of Fish and Game, Canadian Department of Fisheries and Oceans, and U.S. Fish and Wildlife Service was initiated to determine the efficacy of the Genetic Stock Identification (GSI) method for Yukon River chum salmon Oncorhynchus keta to aid in U.S./Canada treaty negotiations. This progress report summarizes collection information and allele frequency estimates obtained by the Alaska Department of Fish and Game for Yukon River chum salmon populations sampled in 1991, 1992, and 1993. Emphasis was placed on improving summer run and Tanana River drainage chum salmon baseline data. The number of potentially discriminating genetic characters was increased from19 loci (Wilmot et al. 1992) to 31 loci after a screening of 66 loci on all new baseline collections. Allele frequency estimates show significant heterogeneity between summer and fall run chum salmon, between drainages within a run time, and within the Anvik and Tanana drainages. Temporal stability was observed between populations sampled over multiple years. Incorporation of these data into the existing Yukon River genetic baseline and subsequent mixed fishery analyses is underway. |
| Keywords: | chum salmon; genetic stock identification; Yukon River; Alaska |