Gambusia affinis
Gambusia affinis
(Western Mosquitofish)
Native Transplant

34 results for Gambusia affinis (Western Mosquitofish)
Download Data

Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
324370 AZCochiseMiddle San Pedro River, Hughes Ranch1994 15050202 Upper San Pedroestablished
324255 AZGilaGila River, Christmas1994 15050100 Middle Gilaestablished
324340 AZPimaSan Pedro River, Dudleyville Crossing1994 15050305 Aguirre Valleyestablished
324273 AZPinalGila River and San Pedro River intersect1994 15050100 Middle Gilaestablished
324333 AZPinalLower Gila River, Box O Wash1994 15050100 Middle Gilaestablished
324315 AZPinalLower Gila River, Cochran1994 15050100 Middle Gilaestablished
324300 AZPinalLower Gila River, Diamond A Ranch1994 15050100 Middle Gilaestablished
324357 AZPinalLower San Pedro River, Aravaipa Creek1994 15050203 Lower San Pedroestablished
324363 AZPinalSan Pedro River, San Manuel Crossing1994 15050203 Lower San Pedroestablished
747811 KSDouglasHaskell Wetlands, off 31st Street near Baker Wetlands Gate1994 10270104 Lower Kansasestablished
286299 MTPhillipsPlunge, The1994 10040104 Fort Peck Reservoirstocked
747779 NECherryBig Creek, NRE 26; T27N,R30W,Sec.17,NW1/4; Upper Loup River1994 10210006 Upper North Loupestablished
546687 NEDawsonLoup River1994 10200101 Middle Platte-Buffaloestablished
747753 NEDawsonPlatte River, NRE 22; T10N,R24W,Sec.11; Middle Platte River1994 10200101 Middle Platte-Buffaloestablished
546684 NEDawsonRepublican River1994 10200101 Middle Platte-Buffaloestablished
747970 NEDawsonSpring Creek, NRE 23; T11N,R23E,Sec.23,SE1/4; Middle Platte River1994 10200101 Middle Platte-Buffaloestablished
546766 NEHallPlatte River1994 10200101 Middle Platte-Buffaloestablished
546683 NEHitchcockRepublican River, .5s Stratton1994 10250004 Upper Republicanestablished
747780 NELincolnNorth Platte River, NRE 28; T14N,R33W,Sec.2,SE1/4; North Platte River1994 10180014 Lower North Platteestablished
546686 NELincolnPlatte River1994 10180014 Lower North Platteestablished
546685 NEPlatteNorth Platte River1994 10200103 Middle Platte-Prairieestablished
748294 NEPlattePlatte River, NRE 30; T16N,R1E,Sec.1,W1/2; Middle Platte River1994 10200103 Middle Platte-Prairieestablished
747781 NEPlattePlatte River, NRE 30; T16N,R1E,Sec.1,W1/2; Middle Platte River1994 10200103 Middle Platte-Prairieestablished
40633 OR state non-specific1994 17000000 Pacific Northwest Regionestablished
40681 ORBentonBenton County1994 17000000 Pacific Northwestestablished

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.

Data are not available for download from the web site. Please contact NAS staff for a custom query.


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. [2020]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [2/20/2020].

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 queries involving fish, please contact Matthew Neilson. For queries involving invertebrates, contact Amy Benson.