EarthWorks Geospatial Catalog

Zebra and Quagga Mussel Distribution North America 1986 - 2011

This point dataset represents a compilation of reports of confirmed zebra mussel as well as quagga mussel sightings in the United States and Canada from 1986 to June 2011. It provides geographical and historical information to show distribution over time. The reports came from a variety of Federal, State, and municipal agencies, public utilities, universities, engineering and private consultant firms. The impact of this biofouling pest on the economy and ecological processes in the U.S. and Canada has required prompt action on a large scale to prevent further infestations and minimize ecological degradation. The locations of confirmed sightings were registered at 1:100,000-scale on EPA Reach File Version 3.0 and are maintained as an ArcInfo export file. This is a revised version of the June 2008 map layer.
Geological Survey (U.S.)
United States, Alabama, Florida, Mississippi, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Missouri, Minnesota, Louisiana, Maine, Massachusetts, Michigan, Maryland, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode Island, South Dakota, South Carolina, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming, Great Lakes, Northern Hemisphere, Western Hemisphere, North America, Canada, Ontario, Quebec, and United States
point, biota, Biogeography, Aquatic animals, Introduced organisms, Nonindigenous aquatic pests , Introduced aquatic organisms , Zebra mussel, Quagga mussel, Fresh water , Rivers, Lakes, Aquatic organisms, Ecological disturbances, and Environmental degradation
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