Compensatory responses by managers , commercial and recreational 1 harvesters to variation in stock abundance of Lake Erie walleye ( Sander 2 vitreus vitreus ) 3 4
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Genetic connectivity and diversity of walleye (Sander vitreus) spawning groups in the Huron–Erie Corridor
Index words: Genetic connectivity Huron–Erie Corridor Microsatellites Mitochondrial DNA control region Sander vitreus Walleye The Huron–Erie Corridor (HEC) connects the upper and lower Great Lakes, providing key fish passage. A century of channelization, dredging, and pollution has led to habitat loss and declining fish numbers. Since 2004, the multi-agency HEC initiative augmented fish spawnin...
متن کاملInfluence of physiochemical and watershed characteristics on mercury concentration in Walleye, Sander vitreus, M.
Elevated mercury concentration has been documented in a variety of fish and is a growing concern for human consumption. Here, we explore the influence of physiochemical and watershed attributes on mercury concentration in walleye (Sander vitreus, M.) from natural, glacial lakes in South Dakota. Regression analysis showed that water quality attributes were poor predictors of walleye mercury conc...
متن کاملAlewife (Alosa pseudoharengus) density as a predictor of open water utilization by walleye (Sander vitreus) in Otsego Lake, NY
Walleye (Sander vitreus) are typically associated with shoals, drop offs, or in aquatic vegetation near shore (Foust and Haynes 2007), while in some lakes and reservoirs walleye make more use of pelagic waters (Ager 1976; Festa 1987; Palmer 2005, Byrne et al. 2009). Walleye have been stocked at a target rate of 80,000/year from 2000-2006 and 40,000/year since 2007. Here, walleye occupy rocky sh...
متن کاملAcoustic Telemetry Reveals Large-Scale Migration Patterns of Walleye in Lake Huron
Fish migration in large freshwater lacustrine systems such as the Laurentian Great Lakes is not well understood. The walleye (Sander vitreus) is an economically and ecologically important native fish species throughout the Great Lakes. In Lake Huron walleye has recently undergone a population expansion as a result of recovery of the primary stock, stemming from changing food web dynamics. Durin...
متن کاملTemporal and Spatial Genetic Consistency of Walleye Spawning Groups
Population genetic compositions of the three largest spawning groups of Lake Erie walleyes Sander vitreus (Maumee River, Sandusky River, and Van Buren Bay reefs) were tested for temporal and spatial consistency across 14 years using nine nuclear DNA microsatellite loci from 726 adult walleyes collected in 1995, 1998, 2003, 2007, and 2008. Previous genetic work focused on a one-time “snapshot”; ...
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