Genetic and Phenetic Variation in Asian Populations
of Pink Salmon Oncorhynchus gorbuscha (Walbaum)

G. A. Agapova and S. P. Pustovoit

Institute of Biological Problems of the North, Far East Division, Russian Academy of Sciences, pr. K. Marksa 24,
Magadan, 685000 Russia

Received December 20, 1996

Abstract—The levels of genetic and phenetic variation were analyzed in nine Asian populations of pink
salmon, Oncorhynchus gorbuscha (Walbaum). The average level of genetic diversity in pink salmon belonging
to generations of odd years was higher than in samples taken in even years. This distribution was shown to be
accounted for by genetic differences between the successive generations of pink salmon. The level of phenetic
diversity was higher in samples taken in even years. These data provide evidence that patterns of changes in the
levels of genetic and phenetic variation in pink salmon populations are independent of one another.

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