Zebra Mussel (Dreissena polymorpha) Control Handbook for Facility Operators; First Edition.
ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS ENVIRONMENTAL LAB
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In 1988, a ship discharged its ballast water into Lake St. Clair, Michigan, releasing billions of organisms that it had taken on at a freshwater port in Europe. In the ballast were the larvae of a freshwater mollusc, the zebra mussel Dreissena polymorpha. This small mussel is usually no more than 5 cm long with characteristic zebra-like stripes Figure 1. The zebra mussel is native to the Caspian Sea and Ural River in Asia. In the nineteenth century, it spread west, and is now found in most of Europe, the western portion of Russia, neighboring former Soviet Union republics, and Turkey.
- Anatomy and Physiology