Myocastor coypus
Myocastor coypus
(nutria)
Mammals
Exotic
Collection Info
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Impacts

14 results for Myocastor coypus (nutria)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
255090 WAGrays HarborChehalis River/Garrard Creek2007 17100103 Upper Chehalisestablished
255094 WALewisBunker Creek2007 17100103 Upper Chehalisestablished
255095 WALewisChehalis River/Jones Creek2007 17100103 Upper Chehalisestablished
1896050 WALewisFort Borst Lake, In lake and along bank2024 17100103 Upper Chehalis 
1710268 WALewisHarrison Ave, Centralia, WA.2023 17100103 Upper Chehalis 
255091 WALewisIndependence Creek2007 17100103 Upper Chehalisestablished
255092 WALewisLincoln Creek2007 17100103 Upper Chehalisestablished
255093 WALewisSkookumchuck River (lower)2007 17100103 Upper Chehalisestablished
255096 WALewisStillman Creek2007 17100103 Upper Chehalisestablished
1896055 WAThurston11005 Old Highway 99 SE Olympia WA 985012024 17100103 Upper Chehalis 
255073 WAThurstonBlack River2007 17100103 Upper Chehalisestablished
1735370 WAThurstonOmitted by NAS2007 17100103 Upper Chehalisunknown
1735371 WAThurstonOmitted by NAS2007 17100103 Upper Chehalisunknown
255076 WAThurstonWaddell Creek2007 17100103 Upper Chehalisestablished

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. [2026]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [2/5/2026].

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.