Carcinus maenas
Carcinus maenas
(green crab)

9 results for Carcinus maenas (green crab)
Download Data
Click here for listing in all states

Specimen IDStateCountyLocalityYear HUC Number What's this? Drainage nameStatus
4362 CA San Francisco Bay1990 18050004 San Francisco Bayestablished
4242 CA San Francisco Bay1994 18050004 San Francisco Bayestablished
619825 CASan MateoBrisbane Lagoon, San Francisco Bay2004 18050004 San Francisco Bayestablished
887092 CASan Mateofrom rip rap next to R/V "Lucile" dock.2002 18050004 San Francisco Bayestablished
887093 CASan Mateointertidal near inner floating docks2002 18050004 San Francisco Bayestablished
4736 CASan MateoRedwood Shores Lagoon [Redwood City, CA]1989 18050004 San Francisco Bayestablished
619817 CASan MateoSan Francisco Bay - Redwood Shores Lagoon1989 18050004 San Francisco Bayestablished
4890 CASan MateoSan Francisco Bay (Redwood Shores) [between Foster City and San Carlos, CA]1993 18050004 San Francisco Bayestablished
4737 CASan MateoSan Francisco Bay south of Dumbarton Bridge [Menlo Park, CA]1995 18050004 San Francisco Bayestablished

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. [2024]. Nonindigenous Aquatic Species Database. Gainesville, Florida. Accessed [3/2/2024].

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.