Imported quaggas

Of all the things we have imported from Europe, the Quagga Mussel is an accidental stowaway that threatens all U.S. waters. They can clog city water-intake structures, agriculture pipes, and create havoc on docks, buoys, boat hulls, and beaches. An estimated $500 million a year is spent managing them in the Great Lakes alone. Bruce Johnson, Lieutenant AIS Field Operations Utah Department of Natural Resources Division of Wildlife, shares in behind-the-scenes work to control these aquatic pests.