Malacostraca | Decapoda
Environment: milieu / climate zone / depth range / distribution range
Benthic; brackish; depth range 0 - 80 m (Ref. 125642). Tropical; 36°N - 31°S, 30°E - 135°W
Indo-Pacific. From East Africa to French Polynesia, north to Japan and south to Australia. Tropical to temperate.
Length at first maturity / Size / Weight / Age
Maturity: Lm 1.0, range 1 - ? cm Max length : 20.0 cm CW male/unsexed; (Ref. 343)
Carapace finely granulose, regions just discernible; 9 teeth on each anterolateral margin, the last tooth 2 to 3 times larger than preceding teeth. Chelae elongated in males; larger chela with conical tooth at base of fingers; pollex ridged. Color: olive to dark green, with 3 prominent maroon to red spots on posterior 1/3 of carapace. Easily distinguished from other species by its very distinct color markings.
Occurs from the intertidal zone (especially juveniles) to depths of 30 m (Ref. 343). Subtidal (Ref. 106854). Inhabits sandy to sandy-muddy substrates (Refs. 343, 125338). Also in brackish water (Ref. 801). Subtropical and tropical climates (Ref. 343). Mainly a predator of sessile and slow-moving benthic macroinvertebrates (Ref. 102720); may be a scavenger (Ref. 100855). Omnivore (Ref. 116259). Spawns throughout the year, with peak from February to July (Ref. 116211).
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. (Ref. 343)
IUCN Red List Status (Ref. 124695)
CITES status (Ref. 108899)
Threat to humans
| FishSource | Sea Around Us
Estimates of some properties based on models
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)
): 18.3 - 29, mean 27.5 (based on 1552 cells).
Low vulnerability (10 of 100)