Lake Independence Citizens Association

The Minnesota Aquatic Invasive Species Research Center (MAISRC) at the University of Minnesota has pioneered a revolutionary technique in monitoring and managing invasive species: Environmental DNA (eDNA) water testing. eDNA testing offers a highly efficient and non-invasive way to detect the presence of aquatic invasive species in lakes, rivers, and streams. By collecting and analyzing water samples, MAISRC scientists can identify the DNA left behind by species, including invasive plants, animals, and pathogens, that might not be visible otherwise.

This technology is a breakthrough for early detection, which is critical in managing invasive species and protecting native ecosystems. Traditional monitoring methods can be labor-intensive, requiring frequent sampling and detailed visual surveys, but eDNA allows scientists to detect a species before it becomes established, making preventive actions far more effective. MAISRC’s eDNA testing has been used to track harmful species such as zebra mussels, Eurasian watermilfoil, and spiny water fleas. 

The process begins with researchers collecting water samples from targeted locations. The DNA extracted from these samples is then amplified and compared to known invasive species DNA in the lab. If a match is found, it indicates that the species is or has recently been present in that body of water. By enabling rapid response to new invasions, eDNA testing helps lake associations, local governments, and environmental agencies respond swiftly and cost-effectively.

As MAISRC refines eDNA testing, it continues to bring invaluable insights to aquatic invasive species management, empowering local communities and conservation organizations in Minnesota and beyond. For more information check out the video webinar below.