Macrocheira kaempferi, Japanese giant spider crab
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Macrocheira kaempferi   Temminck, 1836

Japanese giant spider crab

Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Macrocheira kaempferi  AquaMaps  Data sources: GBIF OBIS
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Image of Macrocheira kaempferi (Japanese giant spider crab)
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drawing shows typical species in Majidae.

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

Malacostraca | Decapoda | Majidae

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

Benthic; depth range 50 - 400 m (Ref. 99853), usually 50 - 200 m (Ref. 99852).  Subtropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Northwest Pacific: Japan and Taiwan.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm Max length : 30.0 cm CW male/unsexed; (Ref. 343); max. published weight: 13.6 kg (Ref. 99323)

Biology     Glossary (e.g. epibenthic)

Largest crab in the world. Leg span may measure up to 3.7 m and weight may exceed more than 13.6 kg (Ref. 99323).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Copulation is evident. Life cycle: first stage zoeal larvae moults in 9-12 days after hatching; second stage zoeae moults in 12-14 days after the first moulting, entering the megalopa stage.

Main reference References | Coordinator | Collaborators

Tanase, H. 1967 Preliminary notes on the zoea and megalopa of the giant spider crab, Macrocheira kaempferi de Haan. Publ. Seto Mar. Biol. Lab. XV(4):303-309. (Ref. 99852)

IUCN Red List Status (Ref. 130435: Version 2025-1)

  Not Evaluated 

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless

Human uses


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Trophic Ecology
Food items (preys)
Diet composition
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Predators
Ecology
Ecology
Population dynamics
Growth
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Abundance
Life cycle
Reproduction
Maturity
Fecundity
Spawning
Eggs
Egg development
Larvae
Distribution
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FAO areas
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Introductions
Physiology
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Human Related
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Taxonomy
Common names
Synonyms
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References
References

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

Preferred temperature (Ref. 115969): 9.8 - 23.2, mean 18.8 (based on 142 cells).
Fishing Vulnerability (Ref. 71543): Low vulnerability (20 of 100).

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