Mailing Address

U.S. Geological Survey
Attn: Staff Name
7920 NW 71st Street
Gainesville, FL 32653
352-378-4956 (Fax)

NAS Staff

Please feel free to contact any of our staff with questions, comments or contributions.

Wesley Daniel, PhD
Fishery Biologist and Coordinator
Direct Line: 352-264-3523
Email address: wdaniel@usgs.gov
Contact for: Invertebrates

Matthew Neilson, PhD
Fishery Biologist
Direct Line: 352-264-3519
Email address: mneilson@usgs.gov
Contact for: Freshwater fishes, eDNA

Ian Pfingsten, MS
Botanist
Direct Line: 352-264-3517
Email address: ipfingsten@usgs.gov
Contact for: Plants

Jonathan Freedman, PhD
Biologist
Direct Line: 352-264-3522
Email address: jfreedman@contractor.usgs.gov
Contact for: Amphibians and Reptiles

Mary Brown, MS
Fishery Biologist
Direct Line: 352-264-3534
Email address: mbrown@usgs.gov
Contact for: Marine fishes

Arden Williams, BS
Researcher
Email address: elisewilliams@contractor.usgs.gov

Logan Stratton, BS
Researcher
Email address: ldstratton@contractor.usgs.gov

Retired Staff

Pam Fuller, MS
Biologist (Retired)

Amy Benson, MS
Biologist (Retired)

Disclaimer:

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. [2025]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [6/14/2025].

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 general information and questions about the database, contact Wesley Daniel. For problems and technical issues, contact Matthew Neilson.