Great Lakes Aquatic Nonindigenous Species Information System (GLANSIS)

The National Oceanic and Atmospheric Association (NOAA) has a National Center for Research on Aquatic Invasive Species (NCRAIS). This Center has provided a database to search over 180 nonindigenous species reported to have reproducing populations in the Great Lakes basin, with individual fact sheets for about 70% of them. Fact sheets include photos, identification, native range, means of introduction of the species and current status. For more information on the database structure, criteria for listing a species, and to search the actual database, go to NCRAIS.