While Lake Byllesby may have a sheet of ice on top of its water, invasive species are still a concern. Luckily because of the dam, Lake Byllesby has few non-native invasive species and the concerted effort to keep zebra mussels out of the lake. 

The Minnesota Department of Natural Resources has updated their infested waters list on July 9. 

12 bodies of water have been updated this year, including parts of the Mississippi River in multiple counties. 

The following bodies of water have been added to the infested waters list in 2021:

  • Mississippi River-U.S. Lock & Dam #3 Pool (Wisconsin)
    • Multiple counties
    • Flowering Rush
  • Blacks
    • Sherburne County
    • Zebra Mussel
  • Beaudry
    • Sherburn County
    • Zebra Mussel
  • South Long
    • Crow Wing County
    • Zebra Mussel
  • Big
    • Beltrami County
    • Zebra Mussel
  • Blackwell
    • Douglas County
    • Zebra Mussel
  • Pimushe
    • Beltrami County
    • Starry stonewort
  • Pine Mountain
    • Cass County
    • Zebra Mussel
  • Mississippi River-U.S. Lock & Dam #9 Pool
    • Houston County
    • Flowering Rush
  • Rabour
    • Chisago County
    • Eurasian water-milfoil
  • Mandall
    • Chisago County
    • Eurasian water-milfoil
  • Roe Mine
    • Crow Wing County
    • Zebra Mussel

How many lakes and rivers are listed as infested?

About 8% of Minnesota's more than 11,000 lakes are on the infested waters list. Less than 3% of Minnesota lakes are listed as infested with zebra mussels. As of October 2019, we have confirmed zebra mussels in 214 lakes and wetlands. We have listed 194 bodies of water as infested with zebra mussels because they are closely connected to a waterway where zebra mussels have been found.

What can I do?

You can help stop the spread of aquatic invasive species. Take three steps every time you leave a lake or river - whether or not it's infested:

  • Clean all aquatic plants, zebra mussels, and other invasive species from boats, trailers, and water-related equipment.
  • Drain water from your boat, ballast tanks, motor, live well and bait container. Remove drain plugs and keep drain plugs out while transporting equipment.
  • Dispose of unwanted bait in the trash. To keep live bait, drain the water and refill the bait container with bottled or tap water.

For a complete list of infested waters, visit the following link. 

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