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USGS Nonindigenous Aquatic Species Database Coloring Sheets

The NAS database tracks the distribution of introduced aquatic organisms across the United States. The publicly accessible information repository monitors, records, and analyzes reported sightings for >1,300 species like lionfish, zebra mussels, and hydrilla. The database contains observations from as early as 1800, derived from many sources, including scientific literature; federal, state, and local natural resource monitoring programs; museum collections; news agencies; and direct submission through on-line reporting forms from citizen scientists.


Below, find coloring sheets featuring some of the well-known non-native and invasive aquatic species. 

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