ResearchNov 14, 2026 · 2 min read

Zebra Mussels Confirmed in Blackduck Lake and Third Crow Wing Lake

Minnesota DNR confirms zebra mussels in Blackduck Lake in Beltrami County and Third Crow Wing Lake in Hubbard County, prompting new precautions.

WA
Wild Animals Central Editorial Team
Source: Minnesota DNR news releases
Photo: Loz (L. B. Tettenborn), Wikimedia Commons, CC BY-SA 3.0

Zebra mussels have been confirmed in Blackduck Lake near Blackduck in Beltrami County and in Third Crow Wing Lake near Badoura in Hubbard County, the Minnesota Department of Natural Resources announced this week. I read the DNR’s news release, which stated that the agency made the identifications after routine sampling and reports from the public.

The invasive mussels were found in multiple locations within each lake. Boaters and property owners on both lakes are now required to follow Minnesota’s laws aimed at stopping the spread of aquatic invasive species, including cleaning all watercraft and draining water from boats and equipment before leaving any water access.

What This Means for Homeowners Near These Lakes

Anyone living on or near Blackduck Lake or Third Crow Wing Lake needs to be vigilant about preventing the spread of zebra mussels. These tiny shellfish attach to hard surfaces, including docks, boat lifts, and water intake pipes, and can cause damage over time.

The DNR recommends inspecting docks and lifts for any rough or sharp patches that could indicate mussels. If you have a boat or personal watercraft, be sure to remove all visible plants, animals, and mud from equipment when you take it out of the water. Drain all water from your boat’s livewell, bilge, and motor, and dispose of unused bait in the trash.

The DNR also reminds anyone who finds a suspected zebra mussel on their property to report it by calling the local DNR invasive species specialist or using the agency’s online reporting tool. Early detection is key to limiting the harm these mussels can cause, as they can alter water quality and affect native fish populations.

The Minnesota DNR news release provides additional information and contact details for the regional invasive species specialists who can help with identification and questions.

The notice is published by Minnesota DNR news releases at www.dnr.state.mn.us.