Upper Midwest Environmental Sciences Center
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Note:This presentation was created from maps from the National Zebra Mussel Information Clearinghouse. It is meant to be a graphical display of the spread of zebra mussels and not to be interpreted as exact science.Allow all images to load and then move your cursor over the dates on the right.                              |
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U.S. Department of the Interior |
U.S. Geological Survey
URL: http://www.umesc.usgs.gov/invasive_species/zebra_mussels/spread.html
Page Contact Information: Contacting the Upper Midwest Environmental Sciences Center
Page Last Modified:
October 2, 2007
