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    Author(s): Joseph C. DystheKellie J. Carim; Michael Ruggles; Kevin S. McKelveyMichael K. YoungMichael K. Schwartz
    Date: 2017
    Source: PLoS ONE 12: e0176459.
    Publication Series: Scientific Journal (JRNL)
    Station: Rocky Mountain Research Station
    PDF: Download Publication  (519.0 KB)


    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-native species, such as walleye. To effectively manage sauger populations, it is necessary to identify areas where sauger occur, and particularly where they co-occur with walleye. We developed quantitative PCR assays that can detect sauger and walleye DNA in filtered water samples. Each assay efficiently detected low quantities of target DNA and failed to detect DNA of non-target species with which they commonly co-occur.

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    Dysthe, Joseph C.; Carim, Kellie J.; Ruggles, Michael; McKelvey, Kevin S.; Young, Michael K.; Schwartz, Michael K. 2017. Environmental DNA assays for the sister taxa aauger (Sander canadensis) and walleye (Sander vitreus). PLoS ONE 12: e0176459.


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    environmental DNA, sauger, Sander canadensis, walleye, Sander vitreus, percid fishes, non-native species

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