The Minnesota Department of Natural Resources has confirmed a zebra mussel in East Battle Lake in Otter Tail County.
A lake property owner removing equipment from the lake for the season contacted the DNR after finding an adult zebra mussel attached to a dock post. DNR divers did not find any additional zebra mussels after searching 20 other pieces of equipment that had been removed from the lake and 350 objects in four areas of the lake.
As with any such confirmation of a specimen, East Battle Lake is listed for zebra mussels, and invasive species signage has been posted at accesses. The DNR will continue to monitor East Battle Lake for zebra mussels and other aquatic invasive species.
East Battle Lake is connected to, but upstream from West Battle Lake, where zebra mussels were confirmed in August 2016. Several other lakes connected to West Battle Lake were added to the list of Minnesota waterbodies with zebra mussels in September 2018. They include Molly Stark, Annie Battle, Blanche, an unnamed lake and other connected portions from West Battle Lake to Otter Tail Lake.
Lake property owners should carefully check boats and trailers, docks and lifts, and all other water-related equipment for invasive species when removing equipment for seasonal storage.
Anyone transporting a dock or lift from a shoreline property to another location for storage or repair may need a permit. This permit requirement helps ensure appropriate steps are taken to prevent the spread of aquatic invasive species.