Gambusia affinis
Gambusia affinis
(Western Mosquitofish)
Fishes
Native Transplant
Collection Info
Point Map
Species Profile
Animated Map

11 results for Gambusia affinis (Western Mosquitofish)
Download Data
Click here for listing in all states

Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
747739 CASan Luis ObispoAvila Creek at San Luis Bay Drive Bridge.1974 18060006 Central Coastalestablished
748028 CASan Luis ObispoEast fork of Pismo creek under highway 2271975 18060006 Central Coastalestablished
747806 CASan Luis Obispomouth of Arroyo Grande creek, 4 km south of Pismo beach1981 18060006 Central Coastalestablished
747740 CASan Luis ObispoOso Flaco Creek, 0.30 km from mouth of Oso Flaco Creek.1974 18060006 Central Coastalestablished
748202 CASan Luis Obispooutlet of Oso Flaco Lake, 11-12 km SSW of Arroyo Grande1977 18060006 Central Coastalestablished
748025 CASan Luis ObispoSan Luis Obispo Cr., 10.05 km from mouth.1975 18060006 Central Coastalestablished
748029 CASan Luis ObispoSan Luis Obispo Cr., against upstream side of wier, 2.1 km from mouth.1975 18060006 Central Coastalestablished
748027 CASan Luis ObispoSan Luis Obispo Creek o.3 to 2.0 km from mouth1975 18060006 Central Coastalestablished
747807 CASan Luis ObispoSan Luis Obispo creek, 1.5 km up from mouth at sheet metal dam1981 18060006 Central Coastalestablished
748201 CASan Luis ObispoSan Luis Obispo Creek, 3.5 km upstream of mouth1977 18060006 Central Coastalestablished
748026 CASan Luis ObispoTributary to San Luis Obispo Cr., within 100 m of contrehu. Tributary called Pretumo Cr., 12 km from mouth of San Luis Obispo Cr.1975 18060006 Central Coastalestablished

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 [1/20/2025].

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.