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Portunus sanguinolentus   (Herbst, 1783)

Threespot swimming crab

Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Portunus sanguinolentus  AquaMaps  Data sources: GBIF OBIS
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Image of Portunus sanguinolentus (Threespot swimming crab)
Portunus sanguinolentus
Picture by Poppe, Guido and Philippe

Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

Malacostraca | Decapoda | Portunidae

Environment: milieu / climate zone / depth range / distribution range Ecology

Benthic; brackish; depth range 0 - 80 m (Ref. 125642).  Tropical; 36°N - 31°S, 30°E - 135°W

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

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 5.4, range 8 - ? cm Max length : 20.0 cm CW male/unsexed; (Ref. 343); 21.5 cm CW (female)

Short description Morphology

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.

Biology     Glossary (e.g. epibenthic)

Maximum length (female) from Ref. 119750. 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). Berried females found throughout the year; abundant from October to November and February to May with peak in February (Ref. 99882).

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.

Main reference References | Coordinator | Collaborators

Ng, P.K.L. 1998. (Ref. 343)

IUCN Red List Status (Ref. 127697)

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses

Fisheries: commercial
| FishSource | Sea Around Us


Internet sources

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Publication : search) | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Tree of Life | Wikipedia (Go, Search) | Zoological Record

Estimates of some properties based on models

Preferred temperature (Ref. 115969): 18.3 - 29, mean 27.5 (based on 1552 cells).
Resilience (Ref. 69278): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 71543): Low vulnerability (10 of 100).
Price category (Ref. 80766): High.