Propellor covered in Zebra Mussels

Introductions of Aquatic Invasive Species (AIS) have caused the decline and extinction of many plant and animal species, and are cited as a cause of endangerment for 48% of the species listed under the Endangered Species Act (ESA). In 2005, aquatic invasive species cost the U.S. economy over $120 billion. Their occurrence and distribution are increasing rapidly, and adverse impacts associated with AIS continue to rise. For all of these reasons, the development of local, regional, and national strategies for the prevention and management of AIS species is critically needed.