Carcinus maenas
Carcinus maenas
(green crab)
Crustaceans-Crabs
Exotic
Collection Info
Point Map
Species Profile
Animated Map

52 results for Carcinus maenas (green crab)
Download Data

Page:123
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
1872913 CAAlamedaAngel Island-Frontal San Francisco Bay Estuaries2025 18050002 San Pablo Bay 
1873890 CAAlamedaMcLaughlin Eastshore SP University2025 18050002 San Pablo Bay 
1872910 CAAlamedaSan Francisco Bay2025 18050002 San Pablo Bay 
1737165 CAAlamedaSan Francisco Bay at Emeryville fishing pier2024 18050002 San Pablo Bayestablished
1736601 CAAlamedaSan Francisco Bay at Encinal Boat Ramp2024 18050004 San Francisco Bayestablished
1872912 CAContra CostaMiller-Knox Regional Shoreline2025 18050002 San Pablo Bay 
619819 CAContra CostaPoint San Pablo Yacht Harbor, San Pablo Bay2004 18050002 San Pablo Bayestablished
619826 CAContra CostaRichmond Marina2005 18050002 San Pablo Bayestablished
4888 CAMarinBolinas Lagoon (Kent Island) (Bolinas, CA)1993 18050005 Tomales-Drake Baysestablished
4361 CAMarinBolinas Lagoon (near Bolinas)1995 18050005 Tomales-Drake Baysestablished
619828 CAMarinChina Camp2005 18050002 San Pablo Bayestablished
619829 CAMarinChina Camp2010 18050002 San Pablo Bayestablished
1872915 CAMarinDrakes Estero2025 18050005 Tomales-Drake Bays 
4739 CAMarinDrakes Estero [Drakes Bay, W of Point Reyes Sta]1993 18050005 Tomales-Drake Baysestablished
4889 CAMarinDrakes Estero [Drakes Bay, W of Point Reyes Sta]1993 18050005 Tomales-Drake Baysestablished
4363 CAMarinDrakes Estero [Drakes Bay, W of Point Reyes Sta]1995 18050005 Tomales-Drake Baysestablished
4735 CAMarinEstero Americano [Sonoma/Marin County line, Bodega Bay]1995 18050005 Tomales-Drake Baysestablished
1872914 CAMarinPickleweed Inlet2025 18050002 San Pablo Bay 
619814 CAMarinPoint Reyes National Seashore - Drakes Estero1993 18050005 Tomales-Drake Baysestablished
1758476 CAMarinRichardson Bay near Dunphy Park2025 18050002 San Pablo Bay 
1872911 CAMarinRichardson Bay near Dunphy Park2025 18050002 San Pablo Bay 
1395920 CAMarinSan Francisco Bay2000 18050002 San Pablo Bay 
1395877 CAMarinSan Francisco Bay2000 18050002 San Pablo Bay 
Page:123

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 [2/22/2026].

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.