You are here

Environmental DNA assays for the sister taxa aauger (Sander canadensis) and walleye (Sander vitreus)

Posted date: June 23, 2017
Publication Year: 
2017
Publication Series: 
Scientific Journal (JRNL)
Source: PLoS ONE 12: e0176459.

Abstract

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.

Citation

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.