Gambusia affinis
Gambusia affinis
(Western Mosquitofish)
Native Transplant

86 results for Gambusia affinis (Western Mosquitofish)
Download Data

Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1322757 ARCleburneLittle Red1997 11010014 Little Redestablished
27703 AZ upper Colorado drainage (level 2); widely stocked1980 14070006 Lower Lake Powellestablished
30464 CO Colorado drainage1993 14010001 Colorado Headwatersestablished
30614 CO White River1982 14050002 Lower Yampaestablished
30616 CO San Juan drainage, upper1982 14080102 Piedraestablished
30192 COLa PlataLa Plata County1985 14080101 Upper San Juancollected
30615 COMesaColorado River just above Gunnison1982 14010005 Colorado Headwaters-Plateauestablished
30191 COMesaMesa County1985 14000000 Upper Coloradocollected
33487 IDAdaBoise River at Boise1980 17050114 Lower Boiseestablished
748095 INPerryBig Poison Creek, Ohio River,R.M. 696.6, Backwater1990 05140104 Blue-Sinkingestablished
748096 INPerryRome In. City Ramp, Ohio River,R.M. 700.8, Main Channel1990 05140104 Blue-Sinkingestablished
747786 KSOsborne1.5 km S of Alton1996 10260014 Lower South Fork Solomonestablished
747800 KSOsborne1.5 km South of Alton below old dam1996 10260014 Lower South Fork Solomonestablished
747802 KSOsborneSouth of Alton at dam1996 10260014 Lower South Fork Solomonestablished
1322717 KSRenoNorth Fork Ninnescah1967 11030014 North Fork Ninnescahestablished
747799 KSRooksdownstream from Woodston Diversion Dam1996 10260014 Lower South Fork Solomonestablished
747801 KSRooksunspecified1996 10260014 Lower South Fork Solomonestablished
34581 KY Salt River1986 05140102 Saltestablished
1322748 MOCrawfordMeramec1997 07140102 Meramecestablished
1322753 MOGasconadeBourbeuse1997 07140103 Bourbeuseestablished
1322750 MOMariesLower Gasconade1997 07140103 Bourbeuseestablished
748199 NEGardenClear Creek WMA1987 10180014 Lower North Platteestablished
748197 NEGardenmarsh near N Platte River1987 10180014 Lower North Platteestablished
546825 NEGardenNorth Platte River, 1.5se Lewellen, Hwy261995 10180014 Lower North Platteestablished
546824 NEGardenNorth Platte River, 1ssw Lewellen, old bridge1995 10180014 Lower North Platteestablished

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 [4/20/2024].

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