This website uses cookies to enhance your browsing experience and ensure the functionality of our site. For more detailed information about the types of cookies we use and how we protect your privacy, please visit our Privacy Information page.
This website uses different types of cookies to enhance your experience. Please select your preferences below:
These cookies help us understand how visitors interact with our website by collecting and reporting information anonymously. For example, we use Google Analytics to generate web statistics, which helps us improve our website's performance and user experience. These cookies may track information such as the pages visited, time spent on the site, and any errors encountered.
Portunus pelagicus (Linnaeus, 1758) Blue swimming crab |
![]() |
photo by
Poppe, Guido and Philippe |
Family: | Portunidae (swimming crabs) | |||
Max. size: | 20 cm CW (male/unsexed) | |||
Environment: | reef-associated; brackish; marine; depth range 0 - 65 m | |||
Distribution: | Indo-West Pacific: from China, Japan and Korea to Philippines and westwards to the straits of Malaccca, also present in the Northern Territory, Australia. Tropical to subtropical. | |||
Diagnosis: | Carapace rough to granulose, regions discernible; front with 4 acutely triangular teeth; 9 teeth on each anterolateral margin, the last tooth 2 to 4 times larger than preceding teeth. Chelae elongate in males; larger chela with conical tooth at base of fingers; pollex ridged. Color: males with blue markings, females dull green. | |||
Biology: | Matures at about 1 year. Collected mainly by artisanal traps, trawls, beach seines, cylindrical wire traps, folding traps, pots, hop nets, drop nets, and sunken crab gill nets. In shallow waters, it is caught using beach seines, rakes, and dab nets. Sold in local markets (fresh or frozen) and for the crab-flesh canning industry. Most widely sold in markets of Southeast Asia, including the Philippines (Ref. 343). Maximum depth from Ref. 801. Immediate subtidal to a depth of 40 m (Ref. 801), on sandy to sandy-muddy substrates in areas near reefs, mangroves, and sea grass and algal beds (Ref. 343). Juveniles tend to occur in shallow intertidal areas (Ref. 343). Burrows in sand when disturbed; carnivorous and voracious predator (Ref. 801). Host to protozoans, helminths and crustaceans (Ref. 104981). | |||
IUCN Red List Status: | Not Evaluated (N.E.) Ref. 123251) | |||
Threat to humans: | poisonous to eat | |||
Country info: |
|