Gambusia affinis
Gambusia affinis
(Western Mosquitofish)
Native Transplant

4 results for Gambusia affinis (Western Mosquitofish)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
747992 CASan DiegoSan Diego R. just above and below upper limit of tidewater and Interstate 405.1973 18070304 San Diegoestablished
748043 CASan DiegoSan Diego River between Old Mission SD and Interstate 151975 18070304 San Diegoestablished
748042 CASan DiegoSan Dieguito at Vida de Santa Fe Road1975 18070304 San Diegoestablished
747987 CASan DiegoSoledad Canyon at NE crossing of Interstate, San Diego Fwy. ca. 2.5 mi. NW of La Jolla.1973 18070304 San Diegoestablished

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.


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. [2024]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [3/2/2024].

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