Abstract
We used allozyme data gathered from 13 polymorphic gene loci to examine the genetic impact of a hatchery strain of chum salmon Oncorhynchus keta on nearby wild populations. Genetic distances between the hatchery population and multiple-year samples from each of 10 wild populations were computed. There did not appear to be any trend over time toward decreased genetic distance, and G-test comparisons of allele frequencies indicated significant heterogeneity between the hatchery and nearby wild populations. Allozyme data are useful for examining historical relationships among populations and can provide a rational basis for evaluating the influence of hatchery-produced fish on nearby wild stocks.
Published Version
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