Alligator mississippiensis
Alligator mississippiensis
(American alligator)
Native Transplant

16 results for Alligator mississippiensis (American alligator)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
253762 AZMohaveLake Mead2005 15010005 Lake Meadfailed
164664 CALos AngelesLake Machado, Ken Malloy Harbor Regional Park2005 18070106 San Gabrielfailed
164505 CANapaNapa, CA2005 18050002 San Pablo Bayfailed
271796 COBouldera pond near downtown Longmont2005 10190005 St. Vrainfailed
164822 IAPottawattamieCarter Lake2005 10230006 Big Papillion-Mosquitofailed
271799 ILLakeEast Loon Lake [just S of Antioch, IL]2005 07120006 Upper Foxfailed
271801 INJohnsonJohnson County2005 05120200 Patoka-Whitefailed
271850 MABristolRehoboth, near Pleasant Street2005 01090004 Narragansettfailed
271807 MAPlymouthWaldo Pond, D.W. Field Park, Brockton2005 01090004 Narragansettfailed
271808 MIKentGrandville2005 04050006 Lower Grandfailed
272008 MOCassVillage of Loch Lloyd Lake2005 10300101 Lower Missouri-Crookedfailed
271841 NJMiddlesexPiscataway, a front yard near west 7th Street2005 02030105 Raritanfailed
164821 NYSteubencreek bed in the Steuben county town of Wayland2005 04130002 Upper Geneseefailed
271844 NYSteubenWayland [non-specific location]2005 04130002 Upper Geneseefailed
271848 PABucksa pond in Kauffman2005 02070004 Conococheague-Opequonfailed
271854 WVBerkeleyupper Potomac River at Williamsport,MD2005 02070004 Conococheague-Opequonfailed

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. [2022]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [12/2/2022].

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