Historical and Anthropogenic Factors Affecting the Population Genetic Structure of Ontario’s Inland Lake Populations of Walleye (Sander vitreus)
نویسندگان
چکیده
منابع مشابه
Historical and anthropogenic factors affecting the population genetic structure of Ontario's inland lake populations of Walleye (Sander vitreus).
Populations existing in formerly glaciated areas often display composite historical and contemporary patterns of genetic structure. For Canadian freshwater fishes, population genetic structure is largely reflective of dispersal from glacial refugia and isolation within drainage basins across a range of scales. Enhancement of sport fisheries via hatchery stocking programs and other means has the...
متن کاملInterplay between ecological, behavioural and historical factors in shaping the genetic structure of sympatric walleye populations (Sander vitreus).
Disentangling ecological, behavioural and evolutionary factors responsible for the presence of stable population structure within wild populations has long been challenging to population geneticists. This study primarily aimed at decoding population structure of wild walleye (Sander vitreus) populations of Mistassini Lake (Québec, Canada) in order to define source populations to be used for the...
متن کاملMorphological and trophic differentiation of growth morphotypes of walleye (Sander vitreus) from Lake Winnipeg, Canada
Ecologically related polymorphisms occur in many northern freshwater fish populations and are distinguished by alternate phenotypes consistently associated with differential use of habitats or resources. We tested for polymorphism in walleye (Sander vitreus (Mitchill, 1818)) in the south basin of Lake Winnipeg, where evidence suggests that ‘‘dwarf’’ and ‘‘normal’’ growth forms may coexist. Morp...
متن کاملEnvironmental DNA assays for the sister taxa sauger (Sander canadensis) and walleye (Sander vitreus)
Sauger (Sander canadensis) and walleye (S. vitreus) are percid fishes that naturally co-occur throughout much of the eastern United States. The native range of sauger extends into the upper Missouri River drainage where walleye did not historically occur, but have been stocked as a sport fish. Sauger populations have been declining due to habitat loss, fragmentation, and competition with non-na...
متن کاملGenetic 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...
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ژورنال
عنوان ژورنال: Journal of Heredity
سال: 2012
ISSN: 1465-7333,0022-1503
DOI: 10.1093/jhered/ess066