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You are here: Home / Aquatic Species / Species Profiles / Asian Shore Crab
Aquatic Species
Species Profiles

Asian Shore Crab

Asian shore crabScientific name: Hemigrapsus sanguineus (De Haan, 1853) (ITIS)

Common names: Asian shore crab, Japanese shore crab, Pacific crab

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Selected Resources

Native To: Western Pacific Ocean (McDermott 1991)

Date of U.S. Introduction: First discovered in 1988 in New Jersey (McDermott 1991)

Means of Introduction: Possibly through ballast water (NAS Database)

Impact: Competes with native crustaceans and preys on other native species (NAS Database)

Current U.S. Distribution: Eastern U.S. coastal region



Selected Resources:


Invasive Species Compendium - Hemigrapsus sanguineus
CAB International.

New York Invasive Species Information - Asian Shore Crab
New York Invasive Species Clearinghouse.

NEANS Panel Online Guide - Asian Shore Crab
Northeast Aquatic Nuisance Species Panel.

Rhode Island Marine & Estuarine Invasive Species Site - Asian Shore Crab
Narragansett Bay Research Reserve. Coastal Training Program.

The Quiet Invasion: A Guide to Invasive Species of the Galveston Bay Area - Asian Shore Crab
Texas Commission on Environmental Quality, Galveston Bay Estuary Program; Houston Advanced Research Center (HARC).

Non-native Species Information: Asian Shore Crab
Great Britain Non-Native Species Secretariat.

Global Invasive Species Database - Hemigrapsus sanguineus (crustacean)
IUCN. Species Survival Commission. Invasive Species Specialist Group.

Federal Government

Nonindigenous Aquatic Species Database: Fact Sheet - Asian Shore Crab
DOI. USGS. Wetland and Aquatic Research Center.
Provides distribution maps and collection information (State and County).

National Exotic Marine and Estuarine Species Information System (NEMESIS) - Hemigrapsus sanguineus
Smithsonian Institution. Smithsonian Environmental Research Center. Marine Invasions Research Lab.

International Government

Biological Synopsis of the Asian Shore Crab, Hemigrapsus sanguineus (2012; PDF | 871 KB)
Fisheries and Oceans Canada. Centre of Expertise for Aquatic Risk Assessment.

Marine Pest: Asian shore crab (Aug 2008; PDF | 372 KB)
National System for the Prevention and Management of Marine Pest Incursions (Australia).

State Government

Asian Shore Crab
Maine Department of Marine Resources.


Hemigrapsus sanguineus
Massachusetts Institute of Technology Sea Grant. Center for Coastal Resources.


Hemigrapsus sanguineus: Invasive to Maine (PDF | 315 KB)
Gulf of Maine Research Institute. Vital Signs.


Integrated Taxonomic Information System. Hemigrapsus sanguineus. [Accessed Sep 10, 2014].

McDermott, J.J. 1991. A breeding population of the western Pacific crab Hemigrapsus sanguineus (Crustacea: Decapoda: Grapsidae) established on the Atlantic coast of North America. Biological Bulletin 181:195-198.

Nonindigenous Aquatic Species Database. Fact Sheet - Asian Shore Crab. USGS, Gainesville, FL. [Accessed Sep 16, 2014].

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Last Modified: Jul 21, 2018
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