Gambusia affinis
Gambusia affinis
(Western Mosquitofish)
Native Transplant

39 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
40738 OR upper Klamath Lake basin in Oregon1997 17100307 Upper Rogueestablished
40633 OR state non-specific1994 17000000 Pacific Northwest Regionestablished
40681 ORBentonBenton County1994 17000000 Pacific Northwestestablished
748074 ORBentonDunawi Creek near Corvallis Safeway on Philomath Blvd.2010 17090003 Upper Willametteestablished
748075 ORBentonDunawi Creek near Corvallis Safeway on Philomath Blvd.2011 17090003 Upper Willametteestablished
747982 ORBentonDunawi Creek near Corvallis Safeway on Philomath Blvd.2011 17090003 Upper Willametteestablished
748184 ORBentonDunawi Creek near Corvallis Safeway on Philomath Blvd.2012 17090003 Upper Willametteestablished
747899 ORBentonFLAT CR.1996 17090003 Upper Willametteestablished
748018 ORBentonLONG TOM R. AT BUNDY BRIDGE1994 17090003 Upper Willametteestablished
747886 ORBentonMUDDY CR., FINLEY NWR1996 17090003 Upper Willametteestablished
747983 ORBentonNewton Creek at Philomath City Park2011 17090003 Upper Willametteestablished
748298 ORBentonOSU Pond 3 at Soap Creek, 7 mi. N Corvallis1962 17090003 Upper Willametteestablished
748297 ORBentonOSU Pond 4 at Soap Creek, 7 mi. N. Corvallis1963 17090003 Upper Willametteestablished
747952 ORBentonSquaw Creek.2002 17090003 Upper Willametteestablished
747900 ORClackamasCREAMERY CR.1996 17090009 Molalla-Puddingestablished
747979 ORClackamasDOVE CREEK1997 17090009 Molalla-Puddingestablished
165296 ORColumbiaBig McNary Lake on Sauvie Island in the Columbia River1995 17090012 Lower Willametteestablished
747762 ORDouglasSUTHERLIN CREEK1997 17100301 North Umpquaestablished
748231 ORDouglasUMPQUA R. ELK CR. UNDER HAYHURST BR.1998 17100303 Umpquaestablished
748094 ORJosephineIrrigation ditch 5 miles west of Grants Pass at Schutzwohl Farm1958 17100310 Lower Rogueestablished
748007 ORLaneAMAZON CREEK, BEHIND LANE CO. FAIRGROUNDS1996 17090003 Upper Willametteestablished
747980 ORLaneQ STREET CHANNEL1997 17090003 Upper Willametteestablished
241425 ORLinnCalapooia River at its confluence with Willamette River1996 17090003 Upper Willametteestablished
748008 ORLinnCAMOUS CR. AT NIXON RD. BRIDGE1996 17090003 Upper Willametteestablished
748004 ORLinnSPOON CREEK1997 17090003 Upper Willametteestablished

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 [6/16/2024].

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