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The Scoop

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U. S. Fish and Wildlife Service

Sheepnose mussel on endangered list

Statement as issued Monday:

The U.S. Fish and Wildlife Service has listed the sheepnose and the spectaclecase, two freshwater mussels found in river systems in the eastern half of the United States, as endangered under the Endangered Species Act.

Sheepnose are currently found in Alabama, Illinois, Indiana, Iowa, Kentucky, Minnesota, Mississippi, Missouri, Ohio, Pennsylvania, Tennessee, Virginia, West Virginia, and Wisconsin. The sheepnose occurs in 25 streams, down from 76, a 67 percent decline. Very few of these populations are known to be reproducing.

The spectaclecase once occurred in at least 44 streams but now occurs in 20 streams, a 55 percent reduction in the number of occupied streams. Of the 20 remaining populations, six are represented by only one or two known specimens each. Spectaclecase mussels are currently found in Alabama, Arkansas, Illinois, Iowa, Kentucky, Minnesota, Missouri, Tennessee, Virginia, West Virginia, and Wisconsin.

In listing the two mussels, the Service evaluated factors related to the species that could lead to extinction. Threats to both the sheepnose and the spectaclecase include loss and degradation of stream and river habitat due to impoundments, channelization, chemical contaminants, mining and sedimentation. Freshwater mussels require clean water; their decline often signals a decline in the water quality of the streams and rivers they inhabit.

The Service’s final rule appears in the March 13, 2013, Federal Register. The Service will now develop a recovery plan for the two species and work cooperatively with partners to conserve their habitats.

It is illegal under the ESA to kill, harm or otherwise “take” a listed species, or to posses, import, export or conduct interstate or international commerce without authorization from the Service. The ESA also requires all federal agencies to ensure actions they authorize, fund, or undertake do not jeopardize the existence of listed species.

More information on mussels and endangered wildlife can be found at www.fws.gov/midwest/endangered

The mission of the U.S. Fish and Wildlife Service is working with others to conserve, protect and enhance fish, wildlife, plants and their habitats for the continuing benefit of the American people. We are both a leader and trusted partner in fish and wildlife conservation, known for our scientific excellence, stewardship of lands and natural resources, dedicated professionals and commitment to public service. For more information on our work and the people who make it happen, visit www.fws.gov.

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