Dreissena polymorpha
•First live mussel collected from Missouri River near
Sioux City, Iowa in 1999
•Discovered in the Zumbro River in Minnesota in 2000; Ossawinnamakee Lake in 2003
•Discovered in 2003 at El Dorado Lake on the Walnut River
in southeast Kansas
•Nearly 600 localities documented in the Mississippi
Basin
•Four lakes in Pennsylvania, spanning the state from west
to east in 2000-2001; Found in a
quarry used for recreational
diving in Virginia in 2002, a first for the state
•Zebra mussels have been detected in over 351 small lakes independent of the large river impoundments
•The number of infested lakes Michigan, Wisconsin, Ohio, Indiana, and New York continue to increase
Missouri DOC