Malacostraca |
Decapoda |
Portunidae
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
Revassocierade; brackvatten; djupintervall 0 - 65 m (Ref. 111223). Tropical, preferred 26°C (Ref. 107945); 35°N - 15°S, 99°E - 137°E
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.
Length at first maturity / Size / Weight / Age
Könsmognad: Lm 6.5, range 6 - ? cm Max length : 20.0 cm CW hane/ej könsbestämd; (Ref. 343)
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.
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).
Members of the order Decapoda are mostly gonochoric. Mating behavior: Precopulatory courtship ritual is common (through olfactory and tactile cues); usually indirect sperm transfer.
Ng, P.K.L. 1998 Crabs. p. 1045-1155. In K.E. Carpenter and V.H. Niem (eds) FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Volume 2. Cephalopods, crustaceans, holothurians and sharks. Rome, FAO. 1998. pp. 687-1396. (Ref. 343)
IUCN Red List Status
(Ref. 130435: Version 2025-1)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Poisonous to eat (Ref. 130554)
Human uses
Fiskeri: kommersiellt viktig
FAO - Vattenbruk: production; fiskeri: landings, species profile | FishSource | Sea Around Us
Verktyg
Ytterligare information
PhysiologySyreförbrukning
Human RelatedStamps, coins, misc.
Internet-källor
Estimates based on models
Preferred temperature
(Ref.
115969): 18.1 - 29, mean 27.6 (based on 1324 cells).
Resiliens
Hög, lägsta populationsfördubblingstid mindre än 15 månader (K=0.1-3.11).
Prior r = 1.19, 95% CL = 0.78 - 1.78, Based on 22 data-limited stock assessments.
Fishing Vulnerability
Low vulnerability (10 of 100).
Climate Vulnerability
Low to moderate vulnerability (34 of 100).
Nutrients : Calcium = 109 [35, 184] mg/100g; Iron = 1.59 [1.21, 1.97] mg/100g; Protein = 20.2 [19.2, 21.3] %; Omega3 = 0.285 [0.185, 0.386] g/100g; Selenium = 48.3 [-31.7, 128.3] μg/100g; VitaminA = 0 μg/100g; Zinc = 1.79 [1.17, 2.40] mg/100g (wet weight); based on
nutrient studies.
