Abstract
Abstract We used a survey of hypervariable, variable number of tandem repeat (VNTR) loci to detect nuclear genetic differentiation within and among populations of striped bass Morone saxatilis in the lower Chesapeake Bay. This species has been refractory to population genetic analysis because it is depauperate in genetic variability. Previously described morphological differences and possible physiographic barriers to gene flow suggest the potential for differentiation among lower bay populations. In this study, we found considerable interindividual variation but relatively small levels of interpopulation variation among samples from the lower western shore of the Chesapeake Bay. The results suggest that stochastic genetic differentiation among these populations is unlikely and that relatively strong selection for locally adapted genotypes would be required for interpopulation differentiation to occur.
Published Version
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