Gambusia affinis
Gambusia affinis
(Western Mosquitofish)
Fishes
Native Transplant
Collection Info
Point Map
Species Profile
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12 results for Gambusia affinis (Western Mosquitofish)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
302593 AZCochiseMiddle San Pedro River, Soza Ranch1995 15050203 Lower San Pedroestablished
1806724 AZPinal[No locality description provided]2020 15050203 Lower San Pedro 
324355 AZPinalLower San Pedro River, Aravaipa Creek1991 15050203 Lower San Pedroestablished
324356 AZPinalLower San Pedro River, Aravaipa Creek1992 15050203 Lower San Pedroestablished
324357 AZPinalLower San Pedro River, Aravaipa Creek1994 15050203 Lower San Pedroestablished
302594 AZPinalLower San Pedro River, Aravaipa Creek1995 15050203 Lower San Pedroestablished
324186 AZPinalLower San Pedro River, Aravaipa Creek1996 15050203 Lower San Pedroestablished
302595 AZPinalLower San Pedro River, Swingle Wash1995 15050203 Lower San Pedroestablished
324187 AZPinalLower San Pedro River, Swingle Wash1996 15050203 Lower San Pedroestablished
324361 AZPinalSan Pedro River, San Manuel Crossing1991 15050203 Lower San Pedroestablished
324362 AZPinalSan Pedro River, San Manuel Crossing1992 15050203 Lower San Pedroestablished
324363 AZPinalSan Pedro River, San Manuel Crossing1994 15050203 Lower San Pedroestablished

Data Disclaimer: Number of records does not imply species abundance. This summary represent collection records only and may not reflect the actual distribution of established populations. These data are preliminary or provisional and are subject to revision. They are being provided to meet the need for timely best science. The data have not received final approval by the U.S. Geological Survey (USGS) and are provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the data.

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 [12/5/2025].

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