Non-Indigenous Aquatic Species (NAS) Database
Welcome to the Nonindigenous Aquatic Species (NAS) information resource for the United States Geological Survey. Located at Gainesville, Florida, this site has been established as a central repository for spatially referenced biogeographic accounts of introduced aquatic species. The program provides scientific reports, online/realtime queries, spatial data sets, regional contact lists, and general information. The data is made available for use by biologists, interagency groups, and the general public. The geographical coverage is the United States.
Publisher - U.S. Geological Survey (USGS)
Subjects - Non-indigenous Aquatic Species (NAS)http://nas.er.usgs.gov
Citation: USGS. 2012. Non-Indigenous Aquatic Species (NAS) Database. City: U.S. Geological Survey (USGS). http://nas.er.usgs.gov