There are several different invasive species in Minnesota. WildlifeForever has a video with footage of many of them. Watch the video.
Eurasian Water Milfoil and Curly Leaf Pondweed
Eurasian Water Milfoil and Curly Leaf Pondweed have been found in Lake John and four surveys have confirmed this in 2012, 2013 and 2015. A majority of the Lake Association budget goes to combat these invasive species.
Need help identifying Eurasion Water Milfoil and Curly Leaf Pondweed? We have a chart that can help.
Zebra Mussels were found in Lake John in the fall of 2015 and have also been found in nearby lakes such as Clearwater Lake. Zebra mussels attached themselves to hard surfaces. During early infestations, zebra mussels are approximately 1/4-1/2 inch long. You can visually inspect surfaces such as docks, dock floats and supports, swimming platforms, boats, motors, anchors and any objects that has been in the lake for the summer such as trim tabs, rubber gaskets or grooves along the keel of a pontoon boat for zebra mussels. They can also be found on rocks and other hard surfaces along the shoreline and in shallow water, especially near water accesses.