Dynamic Maps

Directions -
Click the small map to the left to view the Dynamic Map illustrating the spread of the invasive zebra mussel over time. A new window will open containing a brief introduction to the Zebra Mussels Dynamic Map. If you used previous editions of this map, you'll note that its interface has changed. To explore the map, move your cursor over a year near the top of the window or use the VCR controls.  

Zebra mussel sighting locations are represented by orange and dark red markers on this map. States where zebra mussels have been found in inland and adjacent waters are identified by a dark olive color. Clicking a year near the top of the window displays a map of zebra mussel sightings in that year. You may also use the VCR controls to start or stop an animation of sightings by year and to move to the first or last map in the animation.

• Nonindigenous Aquatic Species, U.S. Geological Survey
• The Exotic Zebra Mussel, U.S. Fish and Wildlife Service
• National Aquatic Nuisance Species Clearinghouse, New York Sea Grant
• Great Lakes Science Center, Zebra mussel page, U.S. Geological Survey
• Zebra Mussel Page, J. L. Ram, Department of Physiology, Wayne State University, Detroit, Michigan