Which Genetic Markers and GSI Methods are More Appropriate for Defining Marine Distribution and Migration of Salmon?

摘要

Potential for increased statistical power in stock discrimination gained through employing more polymorphic marker types such as microsatellites is attractive for applications in determining the distribution and migration of salmon in the high seas. Increased sampling requirements owing to the many character types (alleles) that typify microsatellites, however, raise question about accuracy. While increasing the number of individuals characterized for baseline data addresses this issue, it is seldom feasible to characterize all likely contributing stocks. Furthermore, increasing population sample size (minimum n) requirements per stock inevitably will result in a reduction in the total number of potential contributing stocks that can be characterized in baselines, as funding for research is always finite.