Alligator mississippiensis
Alligator mississippiensis
(American alligator)
Native Transplant

8 results for Alligator mississippiensis (American alligator)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
156000 CA Colorado River in unspecified county1954 15030104 Imperial Reservoirfailed
262246 CAButteButte Creek, near Chico2009 18020158 Butte Creekfailed
1633409 CACalaverasOff of Calaveritas Road near San Andreas, CA.2019 18040011 Upper Calaveras Californiafailed
271795 CAContra CostaOakley [non-specific location]2007 18040003 San Joaquin Deltafailed
258490 CALakeClear Lake2008 18020116 Upper Cachefailed
164664 CALos AngelesLake Machado, Ken Malloy Harbor Regional Park2005 18070106 San Gabrielfailed
164505 CANapaNapa, CA2005 18050002 San Pablo Bayfailed
271794 CASolanoSacramento River Delta, Sherman Island area (five miles north of hwy 160 bridge)2007 18020163 Lower Sacramentofailed

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. [2021]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [12/1/2021].

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