Zebra mussels confirmed in Comfort Lake in Chisago County

The Minnesota Department of Natural Resources has confirmed a report of zebra mussels in Comfort Lake, near Wyoming in Chisago County. 

The DNR confirmed reports from a lake resident who found individual zebra mussels in two different areas of Comfort Lake. The resident had previously attended a volunteer aquatic invasive species identification training conducted by the Comfort Lake-Forest Lake Watershed District.

A follow-up survey by local partners and the DNR confirmed dispersed zebra mussels, indicating a possible reproducing population. Signs at lake accesses have been updated to alert boaters to the presence of zebra mussels.

The DNR encourages all lake users to watch for zebra mussels and other invasive species and to contact the DNR if they find a suspected species that would be new to the lake. This confirmation is an important reminder to follow the state’s invasive species laws:

  • Clean watercraft of aquatic plants and prohibited invasive species.
  • Drain all water by removing drain plugs and keeping them out during transport.
  • Dispose of unwanted bait in the trash.

Zebra mussels are an invasive (non-native) species that 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. Less than two percent of Minnesota’s 11,842 lakes are listed as infested with zebra mussels.

More information is available at www.mndnr.gov/AIS.