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Zebra mussels confirmed in Pimushe Lake in Beltrami County

Zebra mussels confirmed in Pimushe Lake in Beltrami County Photo: USFWS

Updated: November 14, 2019 03:20 PM

Authorities have confirmed the presence of zebra mussels in a Beltrami County lake.

The Minnesota DNR said the invasive species was found in Pimushe Lake.

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The Beltrami County aquatic invasive species staff contacted the DNR after finding one adult zebra mussel on a settlement sampler (a solid surface placed in the water for people to check regularly for attached zebra mussels) hanging on a dock.

The DNR urges everyone to do their part to prevent the spread of aquatic invasive species. For instance, lake property owners and lake service provider businesses should carefully check boats and trailers, docks and lifts, and all other water-related equipment for invasive species when removing equipment for seasonal storage.

Pimushe Lake is just north of the Cass Lake chain of lakes, where zebra mussels were first confirmed in 2014.

DNR confirms zebra mussel larvae in Lake of the Woods

The DNR recommends these additional steps for lake property owners:

  • Look on the posts, wheels and underwater support bars of docks and lifts, as well as any parts of boats, pontoons and rafts that may have been submerged in water for an extended period.
  • Hire DNR-permitted lake service provider businesses to install or remove boats, docks, lifts, and other water-related equipment. These businesses have attended training on Minnesota's aquatic invasive species laws, and many have experience identifying and removing invasive species.

If you think you've found zebra mussels or any other invasive species, the DNR urges you to contact an area DNR aquatic invasive species specialist.

Zebra mussels can compete with native species for food and habitat, cut the feet of swimmers, reduce the performance of boat motors, and cause expensive damage to water intake pipes.

Therefore take one or more of the following for precaution before moving to another waterbody.

  • Spray with high-pressure water.
  • Rinse with very hot water (120 degrees for at least two minutes or 140 degrees for at least 10 seconds).
  • Dry for at least five days.

More information is available on Minnesota's DNR website.

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