Portunus armatus   (Milne-Edwards, 1861)

Blue swimmer crab

Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Portunus armatus  AquaMaps  Data sources: GBIF OBIS
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Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

Malacostraca | Decapoda | Portunidae

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

Benthic; depth range 0 - 50 m (Ref. 122760).  Tropical; 9°S - 38°S, 112°E - 169°E

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Indo-West Pacific: Australia and New Caledonia.

Length at first maturity / Size / Weight / Age

Maturity: Lm 9.6, range 9 - ? cm Max length : 22.0 cm CW male/unsexed; (Ref. 128184); max. reported age: 3.00 years (Ref. 128184)

Biology     Glossary (e.g. epibenthic)

Most abundant in sheltered marine embayments and estuaries (Ref. 122767). Estuarine, inshore, intertidal to subtidal (Ref. 106854). Occurs in coastal waters (Ref. 122766). Lives in a variety of inshore and continental shelf waters. Prefers flatter sandy to muddy bottoms with algal and seagrass communities (Ref. 111207).

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

Fertilized eggs appear 6 months after mating, females carry the eggs onto the pleopods until they hatch. Planktonic eggs hatch after ~15 days (24°C) and the larval stage consists of 4 zoeal and 1 megalopae stages. Growth is rapid, juveniles of 6 months age caught in fishery. Females undergo pubertal moulting at 6-10 months of age, males a few weeks before. Sexual dimorphism observed, males are blue in color while females are olive green or brown (Ref. 128184).

Main reference References | Coordinator | Collaborators

Legall, N. and J. Poupin. 2015. (Ref. 100230)

IUCN Red List Status (Ref. 130435)

  Not Evaluated 

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses

Fisheries: commercial
| FishSource |

Tools

E-book | Field guide

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

Resilience (Ref. 69278): High, minimum population doubling time less than 15 months (K=1.6-3.12; tm=1; tmax=3).