Common names from other countries
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; estuarina; intervalo de profundidade 0 - 50 m (Ref. 343). Tropical; 26°C - 30°C (Ref. 111153), preferred 25°C (Ref. 107945); 34°N - 37°S, 22°E - 134°W
Indo-West Pacific. Introduced in Hawaii and USA.
Length at first maturity / Tamanho / Peso / Idade
Maturity: Lm 6.9, range 8 - ? cm Max length : 28.0 cm CW macho/indeterminado; (Ref. 343); Peso máx. publicado: 3.0 kg (Ref. 343)
Carapace smooth, with strong transverse ridges; H-shaped gastric groove deep; relatively broad frontal lobes, all more or less in line with each other; broad anterolateral teeth, projecting obliquely outwards. Well-developed present on outer surface of chelipedal carpus and anterior and posterior dorsal parts of the palm. Color: carapace green to almost black; legs may be marbled.
Maximum carapace width: between 25 and 28 cm. Maximum weight between 2 and 3 kg. Also collected by baited wire mesh pots. Sold in Taiwan, Hong Kong and Singapore, where the large crabs (so called "meat crabs") and females with ripe ovaries ("roe crabs") command a price from US$5 to US$10 per kg. Largest exporters of this species are Indonesia, Sri Lanka, India, and Bangladesh. There have been attempts to culture the crabs in captivity, but none of the closed-cycle enterprise have gone commercial. Tide is relied upon by farms to bring megalopae or late zoeae into grow-out ponds.
Life cycle and mating behavior
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
Gonochoric; sexually dimorphic based on secondary characteristics. The male traps the female under its chest, holding the latter with its chelipers, forming a pair. When the female is about to molt, the male releases but remains nearby. After moulting, the female is again trapped by the male and the latter opens its genitals towards the female's abdomen. Coupling may last from seven to twelve hours (Ref. 99880) and occurs at the bottom of the burrows; spawning occurs five weeks after mating. Migration: young crabs (2 cm CL) attend to estuarine waters and leave to enter the mangroves at lengths 7-9 cm for males and 8 cm for females; after which they return to the sea (Ref. 99886).
Ng, P.K.L. 1998. (Ref. 343)
Categoria na Lista Vermelha da IUCN (Ref. 130435: Version 2024-1)
Categoria CITES (Ref. 108899)
Not Evaluated
Not Evaluated
Utilização humana
Pescarias: espécies comerciais
FAO - Aquacultura: produção, perfil da espécie; pescarias: landings, perfil da espécie | FishSource | Sea Around Us
Ferramentas
Fontes da internet
Estimates based on models
Preferred temperature
(Ref.
115969): 24.5 - 29.1, mean 28.1 (based on 1290 cells).
Resiliência
Elevada, tempo mínimo de duplicação da população menor que 15 meses (K=0.43).
Prior r = 1.17, 95% CL = 0.77 - 1.75, Based on 3 data-limited stock assessments.
Vulnerabilidade
Low vulnerability (21 of 100).
