In the 2012 President's Budget Request, the National Biological Information Infrastructure (NBII) is terminated. As a result, all resources, databases, tools, and applications within this web site will be removed on January 15, 2012. For more information, please refer to the NBII Program Termination page.
The U.S. Geological Survey's Nonindigenous Aquatic Species (USGS/NAS) Program provides real-time distribution maps for more than 1600 species. Perform a query of interest and the resulting species list will have links to fact sheets, collection data, and distribution maps within the United States. The distribution maps are interactive. The user can zoom in/out and turn on various data layers. They can also identify data points in the map.
Maps of Fish and Other Aquatic Species
Distribution of the zebra mussel (Dreissenia polymorpha) in 2004. Map: National Atlas; Data: USGS/NAS
Follow the links below to find information for your species or area of interest or search by a key word.