Zebra mussels (Dreissena polymorpha) are small freshwater bivalve mollusks with recognizable D-shaped shells. Below are some of the lakes most affected by zebra mussels, including Lake Champlain and Lake Winnipeg, where they have damaged local ecosystems. Lakes With Vast Animal LifeThese are the most biodiverse lakes in North America, from Lake Okeechobee to Lake of the Woods. Lake Winnipeg, in Manitoba, is considered one of the most stressed zebra mussel hotspots in North America. Whereas the Great Lakes are now struggling mainly with quagga mussels, Lake Winnipeg is seeing an ongoing increase in the zebra variety.

Source: The North Africa Journal March 31, 2026 08:00 UTC