The Minnesota Department of Natural Resources says it has found zebra mussels in both McCarron Lake and Long Lake in Ramsey County.
The DNR says six zebra mussels were detected by an invasive species expert near the public access in McCarron Lake and a department survey found an additional half-dozen of the mollusks north and south of the access. Further investigation confirmed a lake-wide zebra mussel presence.
A contract diver found an adult zebra mussel attached to a native mussel near the public access on Long Lake. The DNR and Ramsey County staff did not find additional zebra mussels during a follow-up search.
Zebra mussels have been in Minnesota waters for about 10 years. State law requires boaters to clean watercraft and trailers of aquatic plants and prohibited invasive species, drain all water from boats and dispose of unwanted bait.