Actually the zebra mussel is all over the great lakes, it is native to the Caspian Sea region of Asia. They think a Russian ship brought it in the ballast tanks. I live 1 mile from Lake Erie. However one good thing about the pest is it filters many gallons of water a day. I have noticed since they are here, the water does look cleaner. The big problem with them is they gum up the water intake systems for many communities living around the great lakes.