Invasion

Invasion Description

1st Record: Manitoba/Lake Winnipeg, South Basin (by 1950, Badiou and Goldsborough 2006, from Red River, MN, reached Manitoba by 1938)

Geographic Extent

Manitoba/Lake Winnipeg, South Basin (by 1950, Badiou and Goldsborough 2006, from Red River, MN); Manitoba/Lake Winnipeg, North Basin (by 1970, Badiou and Goldsborough 2006)