Carcinus maenas
Carcinus maenas
(green crab)
Crustaceans-Crabs
Exotic
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13 results for Carcinus maenas (green crab)
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Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
1886074 NJOceanKey Harbor Marina, Barnegat Bay2023 02040301 Mullica-Tomsestablished
1764717 NYSuffolk[No locality description provided]2023 02030202 Southern Long Island 
1764722 NYSuffolk[No locality description provided]2023 02030202 Southern Long Island 
1764720 NYSuffolkGreat South Bay2023 02030202 Southern Long Island 
1764723 NYSuffolkGreat South Bay2023 02030202 Southern Long Island 
1764721 NYSuffolkLong Island Sound2023 02030201 Northern Long Island 
1764718 NYSuffolkLong Island Sound2023 02030201 Northern Long Island 
1764719 NYSuffolkLong Island Sound2023 02030201 Northern Long Island 
1764724 NYSuffolkPort Jefferson Harbor2023 02030201 Northern Long Island 
1872920 ORTillamookNetarts Bay, Oregon2023 17100203 Wilson-Trusk-Nestuccuestablished
1872922 ORTillamookSalmon River Estuary, Oregon, USA2023 17100204 Siletz-Yaquinaestablished
1886075 VAAccomackCurtis Merritt Harbor, Chincoteague Inlet2023 02040303 Chincoteagueestablished
1711909 WAPacificNahcotta small boat basin off Sandridge Rd.2023 17100106 Willapa Bay 

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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