Fish introductions in the former Soviet Union: The Sevan trout (Salmo ischchan) - 80 years later.

On the other hand, the test based on the total number of alleles and the range of allele sizes provided M -ratios consistently below critical thresholds of a sample drawn from a small ( θ = 0.2) to moderate ( θ = 1.0) population and at the margin of significance in a large population ( θ = 2.0), indicating a bottleneck and suggesting reduction in population size.

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