Gambusia affinis
Gambusia affinis
(Western Mosquitofish)
Fishes
Native Transplant
Collection Info
Point Map
Species Profile
Animated Map

21 results for Gambusia affinis (Western Mosquitofish)
Download Data
Click here for listing in all states

Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1792493 AZMohaveColorado River2012 15010005 Lake Mead 
1792494 AZMohaveColorado River2012 15010005 Lake Mead 
1792495 AZMohaveColorado River2012 15010005 Lake Mead 
1792496 AZMohaveColorado River2012 15010005 Lake Mead 
1792497 AZMohaveColorado River2012 15010005 Lake Mead 
1792498 AZMohaveColorado River2012 15010005 Lake Mead 
1792499 AZMohaveColorado River2012 15010005 Lake Mead 
1792500 AZMohaveColorado River2012 15010005 Lake Mead 
1792501 AZMohaveColorado River2012 15010005 Lake Mead 
1792502 AZMohaveColorado River2014 15010005 Lake Mead 
1792503 AZMohaveColorado River2014 15010005 Lake Mead 
1792504 AZMohaveColorado River2014 15010005 Lake Mead 
28016 AZMohaveLake Mead1938 15010005 Lake Meadestablished
1792506 AZMohaveLake Mead2014 15010005 Lake Mead 
1801271 AZMohaveLake Mead2015 15010005 Lake Mead 
1801272 AZMohaveLake Mead2015 15010005 Lake Mead 
1801273 AZMohaveLake Mead2016 15010005 Lake Mead 
158242 AZMohaveLake Mead National Recreation Area1999 15010005 Lake Meadestablished
747822 AZMohaveMead Reservoir at Emory Falls, River Mile 274, along left bank.1975 15010005 Lake Meadestablished
747943 AZMohaveMead Reservoir at Pierce Ferry Landing on S shore; River Mile 280.1975 15010005 Lake Meadestablished
1792505 AZMohaveWaterfall Rapids2014 15010005 Lake Mead 

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.

Disclaimer:

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 [12/5/2025].

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.