Zebra Mussels are serious pests in Europe and have infested the Great Lakes. They reproduce quickly, clogging intake pipes that serve industries and water treatment plants. They may impact the ecology of lakes and rivers, and are moving to some inland waters.
Purple Loosestrife is a wetland plant from Europe and Asia. It was introduced to the east coast of North America in the 1800s. It first spread along roads, canals, and drainage ditches, then later was distributed as an ornamental. This exotic plant now thrives in 40 states.
Common Carp: In 1831 carp was one of the first exotic species intentionally introduced to the Great Lakes. They are now widely distributed in southern Canada and most of the U.S. They prey on the eggs of preferred species and on zebra mussels. Because they root in the mud and increase turbidity, the presence of carp can result in decreased populations of native fishes.
For more information about this display contact Mandy Beall at 608-267-3531 or e-mail her at mandy.beall@dnr.state.wi.us
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This page was last updated on January 13, 2003.