Gambusia affinis
Gambusia affinis
(Western Mosquitofish)
Fishes
Native Transplant
Collection Info
Point Map
Species Profile
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13 results for Gambusia affinis (Western Mosquitofish)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1779132 NYNassau[No locality description provided]1996 02030201 Northern Long Island 
1784027 NYNassau[No locality description provided]2003 02030201 Northern Long Island 
1784028 NYNassau[No locality description provided]2003 02030201 Northern Long Island 
1788185 NYNassau[No locality description provided]2006 02030201 Northern Long Island 
1795120 NYNassau[No locality description provided]2012 02030202 Southern Long Island 
1795121 NYNassau[No locality description provided]2012 02030202 Southern Long Island 
1795119 NYNassau[No locality description provided]2013 02030202 Southern Long Island 
1804488 NYNassau[No locality description provided]2016 02030202 Southern Long Island 
1804485 NYQueens[No locality description provided]2019 02030201 Northern Long Island 
1784029 NYSuffolk[No locality description provided]2002 02030202 Southern Long Island 
1788177 NYSuffolk[No locality description provided]2009 02030202 Southern Long Island 
1804486 NYSuffolk[No locality description provided]2015 02030202 Southern Long Island 
39652 NYSuffolkLong Island (HUC6) non-specific1980 02030200 Long Islandestablished

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. [2026]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [2/22/2026].

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