Charybdis japonica   (Milne-Edwards, 1861)

Japanese swimming crab
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Charybdis japonica

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

Malacostraca | Decapoda | Portunidae

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

Benthopelagic; depth range 0 - 50 m (Ref. 125642).  Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Western Pacific: from Japan to Malaysia. Subtropical and tropical climates.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm Max length : 7.0 cm CW male/unsexed; (Ref. 343)

Short description Morphology

Carapace without transverse ridges behind last anterolateral tooth; frontal teeth acutely triangular; anterolateral all acutely triangular. Posterior border of propodus of legs serrated. Palm with 5sharp spines, longitudinal ridges on palm granulated. Color: carapace white with large greyish patches, tips at anterolateral teeth reddish brown; fingers red and white.

Biology     Glossary (e.g. epibenthic)

Subtropical and tropical climates (Ref. 343). Found intertidal to subtidal, on substrates ranging from seagrass, mud, sand, to rocks. Occur to depths of 50 meters (Ref. 125642). Also found in tidepools on rocky shores (Ref. 118296). Common in estuaries, in firm or muddy fine sands (Ref. 118295). Generalist scavenger and predator (Ref. 118296). Benthopelagic predator, feeding mainly on benthic bivalves (Lamellibranchia), benthic crustaceans, fishes, and cephalopods (Ref. 117071). Host to the sacculinid barnacle Heterosaccus papillosus (Ref. 118296).

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. 130435)

  Not Evaluated 

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses


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More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Common names
Synonyms
Predators
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Morphology
Larvae
Abundance
References
Mass conversion
Collaborators
Pictures

Internet sources

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

Estimates based on models

Vulnerability (Ref. 71543): Low vulnerability (10 of 100).
Price category (Ref. 80766): Unknown.