NAS - Nonindigenous Aquatic Species
Click on images to enlarge:
Top: Zebra mussel, Bottom: Quagga mussel
Left: zebra mussel, Right: quagga mussel
Left: Zebra mussel, Right: Quagga
The data represented on this site vary in accuracy, scale, completeness, extent of coverage and origin. It is the user's responsibility to use these data consistent with their intended purpose and within stated limitations. We highly recommend reviewing metadata files prior to interpreting these data.
Citation information: U.S. Geological Survey. . Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [4/21/2019].
Contact us if you are using data from this site for a publication to make sure the data are being used appropriately and for potential co-authorship if warranted. For queries involving fish, please contact Matthew Neilson. For queries involving invertebrates, contact Amy Benson.