Daniel Dutton

Genetic Marker-assisted Restoration of the Presumptive Native Walleye Fishery in the New River, Virginia and West Virginia

Fisheries Outstanding Technical Paper

The increasing importance of the walleye (Sander vitreus) fishery in the New River, Virginia, and recent research findings showing persistence of a presumptive native stock motivated a seven-year program of hatchery-based restoration of the native fishery. Candidate spawners were collected from spawning areas, and DNA from fin clips was genotyped at two microsatellite loci. Candidates exhibiting alleles at the Svi17 and Svi33 loci that characterize the presumptive native stock were spawned. Their young were reared at one of four fish hatcheries in Virginia and West Virginia. Approximately...

Genetic Distinct Walleye Stocks in Claytor Lake and the Upper New River, Virginia

The increasing importance of the walleye (Sander vitreus) fishery in the New River, Virginia, and recent research findings motivated characterization of its genetic composition. Movements of radio-tagged fish suggested that walleyes living in Claytor Lake and the upper New River tend to spawn in different areas. In this study, allozyme, microsatellite DNA, and mitochondrial DNA genetic marker data were analyzed to assess population genetic differentiation among collections of New River walleye. The walleyes within Claytor Lake are a panmictic population, presumably resulting from years of...

Virginia Largemouth Bass Populations Lack Geographic Pattern of Genetic Variation

The species largemouth bass Micropterus salmoides is comprised of two subspecies: northern largemouth bass M.s. salmoides and Florida largemouth bass M.s. floridanus. It is uncertain whether largemouth bass is native to the Atlantic slope and New drainages of Virginia. There exists a widely-held perception that Florida largemouth bass or F1 northern x Florida hybrids provide more trophy catches than northern largemouth bass, which has led to widespread stocking of Florida largemouth bass into native northern and intergrade largemouth bass populations. Twenty-four Virginia populations of...