Malacostraca | Decapoda
Environment: milieu / climate zone / depth range / distribution range
Benthic; brackish; depth range 0 - 200 m (Ref. 2779), usually 0 - 6 m (Ref. 114208). Subtropical; -1°C - 22°C (Ref. 114208), preferred 12°C (Ref. 107945); 70°N - 22°N, 20°W - 19°E (Ref. 114232)
Eastern Atlantic: From Great Britain north to Iceland, the North Sea and Norway, south to Portugal and Spain to Mauritania. Introduced and established in North America, South Africa (Cape Town), and Australia. Introduced but not established in Panama, Brazil, Pakistan, Sri Lanka, Madagascar, Myanmar, Japan and Hawaii. Subtropical to polar.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 1 - 4.5 cm Max length : 6.0 cm CL male/unsexed; (Ref. 435); common length : 4.0 cm CL male/unsexed; (Ref. 435); max. reported age: 7 years (Ref. 128193)
Maximum carapace width: 7.7 cm; commonly 5 cm wide. Inhabits shallow water from the intertidal area down to 200 m. Lives under stones, on muddy or muddy sand bottoms, or hard bottom, etc. Also inhabits brackish lagoons (Ref. 2779).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Members of the order Decapoda are mostly gonochoric. Mating behavior: Precopulatory courtship ritual is common (through olfactory and tactile cues); usually indirect sperm transfer (Ref. 833). Berried females migrate from littoral areas to more saline and deeper water (8-10 m) until hatching of eggs; afterwhich, they go back to moult and copulate (Ref. 128197). Larger females can breed twice or thrice annually (Ref. 128203).
Fischer, W., G. Bianchi and W.B. Scott (eds.). 1981. (Ref. 435)
IUCN Red List Status (Ref. 126983)
CITES status (Ref. 108899)
Threat to humans
FAO - Fisheries: landings | FishSource | Sea Around Us
Estimates of some properties based on models
): 7 - 12.7, mean 9.6 (based on 453 cells).
Low vulnerability (10 of 100).