Zebra Mussels

Attention boaters, lake shore residents, and outdoor enthusiasts:


As you use your boats, lifts, and other water craft this spring/summer, please make sure to check them for invasive species before moving them to/from lakes.  Two lakes in Scott County currently have zebra mussels: Upper and Lower Prior Lakes.  We need everyone’s help to keep them from spreading to other lakes.  Once they are in a waterbody, they are both expensive and difficult to remove.  Please help us keep our waters safe and clean of aquatic invasive species.
Zebra Mussels: photo by Kevin Watson
Zebra Mussels Cover Shopping Cart: Photo by DNR

Zebra Mussels stick to everything from other mussels to shopping carts.  They're sharp and can cut the feet of dogs and swimmers.  They cause BILLIONS of dollars in damages every year.  Click on the above pictures for links to brochures.

Click on this picture for training and permit links

Zebra Mussels Picture by USFWS

Watch the short video below to learn:


  • what to look for when checking your watercraft 
  • what to do to prevent their spread

How do I know it is a Zebra Mussel?


Learn more about what Zebra Mussels look like in this DNR fact sheet.  

If you find zebra mussels or anything else that looks suspicious attached to your equipment, please contact the Department of Natural Resources at 1-651-259-5100.  Please ask to speak to an Aquatic Invasive Species (AIS) Specialist.  

More Resources:


Learn tips on how to prevent the spread of aquatic invasive species to Scott County in this brochure

You can also find more information on the DNR website here:
Volunteer opportunities exist with Scott County, Minnesota Extension, and Minnesota DNR to monitor for Zebra Mussels and other invasive Species.  Click on the agency names to find out more.
ProtectOurWaters