Genetic Variation of Striped Bass in Lake Texoma

To determine if inbreeding was a cause of an apparent decline of large striped bass (Morone saxatilis) in Lake Texoma, striped bass sampled from four sites on the reservoir (n = 206), in the Red River below Denison Dam in 2001 (n = 58), and archived scale samples from Lake Texoma collections in 1978 (n = 44) were genotyped and evaluated at six microsatellite loci. There was evidence of weak population genetic structure among the collection sites. However, analyses of Hardy-Weinberg and linkage equilibrium within sites did not provide evidence of recent inbreeding within Lake Texoma. Consequently, recent declines in the number of large adult striped bass in Lake Texoma cannot be explained by inbreeding depression.

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