Gambusia affinis
Gambusia affinis
(Western Mosquitofish)
Fishes
Native Transplant
Collection Info
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23 results for Gambusia affinis (Western Mosquitofish)
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Click here for listing in all states

Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
35804 MN state non-specific1958  collected
35851 MN state non-specific1961  collected
35706 MN state non-specific1982  established
35805 MNAnoka 1958 07000000 Upper Mississippi Regionfailed
35852 MNAnoka 1959 07000000 Upper Mississippi Regionestablished
35853 MNAnoka 1960 07000000 Upper Mississippi Regionestablished
35855 MNAnoka 1961 07000000 Upper Mississippi Regionestablished
35806 MNHennepinHennepin County, ponds1958 07010200 Upper Mississippi-Crow-Rumfailed
35856 MNHennepinHennepin County, ponds1959 07010200 Upper Mississippi-Crow-Rumestablished
35857 MNHennepinHennepin County, ponds1960 07010200 Upper Mississippi-Crow-Rumestablished
35858 MNHennepinHennepin County, ponds1961 07010200 Upper Mississippi-Crow-Rumestablished
35807 MNRamseyRamsey County, ponds1958 07010206 Twin Citiesfailed
35860 MNRamseyRamsey County, ponds1959 07010206 Twin Citiesestablished
35861 MNRamseyRamsey County, ponds1960 07010206 Twin Citiesestablished
35862 MNRamseyRamsey County, ponds1961 07010206 Twin Citiesestablished
35809 MNScottScott County, ponds1958 07020012 Lower Minnesotafailed
35863 MNScottScott County, ponds1959 07020012 Lower Minnesotaestablished
35864 MNScottScott County, ponds1960 07020012 Lower Minnesotaestablished
35961 MNScottScott County, ponds1961 07020012 Lower Minnesotaestablished
35810 MNWashingtonWashington County, ponds1958 07000000 Upper Mississippi Regionfailed
35865 MNWashingtonWashington County, ponds1959 07000000 Upper Mississippi Regionestablished
35866 MNWashingtonWashington County, ponds1960 07000000 Upper Mississippi Regionestablished
35867 MNWashingtonWashington County, ponds1961 07000000 Upper Mississippi Regionestablished

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.

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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 [12/11/2025].

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.