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National Invasive Species Information Center
U.S. Department of Agriculture
Home / Aquatic Invasives / Aquatic Invertebrates / Asian Shore Crab

Asian Shore Crab

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Asian shore crab
Asian shore crab, adult - Photo by U.S. Geological Survey
Scientific Name: 
Hemigrapsus sanguineus (De Haan, 1853) (ITIS)
Common Name: 
Asian shore crab, Japanese shore crab, Pacific crab
Native To: 
East coast of Asia (Epifanio 2013)
Date of U.S. Introduction: 
First discovered in 1988 in the Delaware Bay (Epifanio 2013)
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

Distribution / Maps / Survey Status

Nonindigenous Aquatic Species Database: Point Map - Asian Shore Crab
DOI. USGS. Wetland and Aquatic Research Center.
Provides detailed collection information as well as animated map.

Images

Google Images - Asian Shore Crab
Google.
Invasive.org - Asian Shore Crab
University of Georgia. Center for Invasive Species and Ecosystem Health.
PaDIL - Japanese Shore Crab
Australian Plant Biosecurity Cooperative Research Centre. Pests and Diseases Image Library.

Videos

YouTube - The Asian Shore Crab: A Perilous Invasion

Google. YouTube; Tufts University.

Selected Resources

The section below contains highly relevant resources for this species, organized by source. Or, to display all related content view all resources for Asian Shore Crab.

Partnership
Global Invasive Species Database - Hemigrapsus sanguineus (crustacean)
IUCN. Species Survival Commission. Invasive Species Specialist Group.
Invasive Species Compendium - Hemigrapsus sanguineus
CAB International.
NEANS Panel Online Guide - Asian Shore Crab
Northeast Aquatic Nuisance Species Panel.
New York Invasive Species Information - Asian Shore Crab

New York Invasive Species Clearinghouse.

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

Federal Government
National Exotic Marine and Estuarine Species Information System (NEMESIS) - Hemigrapsus sanguineus

Smithsonian Institution. Smithsonian Environmental Research Center. Marine Invasions Research Lab.

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).
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 Pests: Asian shore crab
National System for the Prevention and Management of Marine Pest Incursions (Australia).
State and Local Government
Asian Shore Crab

Maine Department of Marine Resources.

Academic
Delaware's Invasive Crabs - Asian Shore Crabs

University of Delaware. Delaware Sea Grant College Program.

See also: Delaware's Invasive Crabs for more story maps

Citations