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Tuesday, January 30 • 6:00pm - 9:00pm
Poster Display. Spatial Genetic Structure of Smallmouth Bass Across Wisconsin

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AUTHORS: Jenna Ruzich, Wisconsin Cooperative Fishery Research Unit-University of Wisconsin Stevens Point; Scott Hansen, Wisconsin Department of Natural Resources; David Rowe, Wisconsin Department of Natural Resources; Wes Larson, U.S. Geological Survey-Wisconsin Cooperative Fishery Research Unit

ABSTRACT: Smallmouth Bass are an important sport fish throughout Wisconsin and can be found in many aquatic ecosystems. Past studies have found that Smallmouth Bass may be an indicator species: sensitive to environmental changes. Therefore, Smallmouth Bass could possess the evolutionary potential necessary for adapting to regional differences in climate, productivity, physical habitat, and ecosystem size. This could influence the genetic diversity between various Smallmouth Bass populations. Additionally, Smallmouth Bass have not been extensively stocked throughout the state of Wisconsin. This presents an important opportunity to investigate a species that has likely not been impacted by indiscriminate stocking. There is currently little information on the genetic integrity of Smallmouth Bass populations found spatially separated within and between lakes, rivers, and flowage systems in Wisconsin. The objective of this study is to determine if genetic structure exists between Smallmouth Bass populations sampled at various locations across the state of Wisconsin. Sixteen different bass populations will be sampled via electrofishing and fyke netting to collect fin clips for DNA analysis. Genetic diversity and population structure will be analyzed using 15 microsatellites developed for Smallmouth and Largemouth Bass. We anticipate that Smallmouth Bass populations will be highly structured throughout the state. The results of our research will be used to define stock boundaries and inform managers of this important species.

Tuesday January 30, 2018 6:00pm - 9:00pm CST
Ballroom C & Foyer

Attendees (3)