Josh Dumke M.S.

Josh Dumke headshot
Professional Title
Senior Research Scientist, Fisheries Ecologist

Josh works on fisheries and aquatic ecology research within lakes and streams all around the Great Lakes basin, and inland Minnesota. Josh’s recent interests include learning how native species interact with invasive species, and identifying mechanisms of over-land transport supporting the spread of aquatic invasive species into new waterbodies. Collectively, this work will help researchers, anglers, and recreational boaters limit their risk of transporting invasive species as undetected “hitchhikers.”


  • M.S., Integrated Biosciences, University of Minnesota Duluth, 2009
  • B.S., Biology, University of Wisconsin Eau Claire, 2006

Recent Publications

Featured Research Projects

A comprehensive aquatic invasive species (AIS) presence database for St. Louis County lakes to help identify which may be at risk for new AIS introduction.

NRRI News Articles

Collecting the eDNA of invasive species informs prevalence and spread in Northern Minnesota lakes

While anglers may curse the busy beavers that dam up a popular trout stream, there can be positive benefits from the ponds created by dams.

Leading by example, researchers work with local business to power up boat decontamination of aquatic invasive species.

Media Coverage