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Scylla - Species in
Portunidae - - Classification -
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- Decapoda
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Scylla serrata (Forsskål, 1775)
Indo-Pacific swamp crab| Native range | All suitable habitat | Point map | Year 2050 |
|
| This map was computer-generated and has not yet been reviewed. |
| Scylla serrata AquaMaps Data sources: GBIF OBIS |
Fiji country information
Common names:
[No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: C: Ref. 96667, 111153.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/fj.html
National Fisheries Authority: http://www.spc.org.nc/coastfish/Countries/fiji/fiji.htm
Occurrences: Occurrences Point map
Main Ref: CRUSTA, 2012
National Database:
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: C: Ref. 96667, 111153.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/fj.html
National Fisheries Authority: http://www.spc.org.nc/coastfish/Countries/fiji/fiji.htm
Occurrences: Occurrences Point map
Main Ref: CRUSTA, 2012
National Database:
Common names from other countries
Classification / Names Κοινά ονόματα | Συνώνυμα | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS
Environment: milieu / climate zone / depth range / distribution range Οικολογία
; Υφάλμυρο; εύρος βάθους 0 - 50 m (Αναφ. 343). Tropical; 26°C - 30°C (Αναφ. 111153), preferred 25°C (Αναφ. 107945); 34°N - 37°S, 22°E - 134°W
Distribution Χώρες | Περιοχές FAO | Οικοσυστήματα | Παρουσίες | Εισαγωγές
Indo-West Pacific. Introduced in Hawaii and USA.
Length at first maturity / Μέγεθος / Weight / Age
Maturity: Lm 6.9, range 8 - ? cm Max length : 28.0 cm CW αρσενικό/απροσδιόριστο; (Αναφ. 343); μεγ. δημοσιευμένο βάρος: 3.0 kg (Αναφ. 343)
Short description Μορφολογία
Carapace smooth, with strong transverse ridges; H-shaped gastric groove deep; relatively broad frontal lobes, all more or less in line with each other; broad anterolateral teeth, projecting obliquely outwards. Well-developed present on outer surface of chelipedal carpus and anterior and posterior dorsal parts of the palm. Color: carapace green to almost black; legs may be marbled.
Maximum carapace width: between 25 and 28 cm. Maximum weight between 2 and 3 kg. Also collected by baited wire mesh pots. Sold in Taiwan, Hong Kong and Singapore, where the large crabs (so called "meat crabs") and females with ripe ovaries ("roe crabs") command a price from US$5 to US$10 per kg. Largest exporters of this species are Indonesia, Sri Lanka, India, and Bangladesh. There have been attempts to culture the crabs in captivity, but none of the closed-cycle enterprise have gone commercial. Tide is relied upon by farms to bring megalopae or late zoeae into grow-out ponds. Prefers oceanic waters, usually found just offshore on soft muddy bottoms (Also Ref. 9773). Can be caught up to 50 m offshore as it migrates offshore to spawn (Ref. 343). Subtidal (Ref. 106854). Digs deep burrows in mangroves and soft substrates in shallow or intertidal waters (Refs. 343, 9773). Found in brackish to sea water (Ref. 77016). Forages at night. Major predator (Also Ref. 128960) of small invertebrates colonizing mangrove swamps (Ref. 8752). Feeds on shrimps, crabs, fishes, and bivalves (Refs. 99886, 102679). Benthic scavenger but prefers oysters (Ref. 9773).
Life cycle and mating behavior Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Eggs | Γονιμότητα | Larvae
Gonochoric; sexually dimorphic based on secondary characteristics. The male traps the female under its chest, holding the latter with its chelipers, forming a pair. When the female is about to molt, the male releases but remains nearby. After moulting, the female is again trapped by the male and the latter opens its genitals towards the female's abdomen. Coupling may last from seven to twelve hours (Ref. 99880) and occurs at the bottom of the burrows; spawning occurs five weeks after mating. Migration: young crabs (2 cm CL) attend to estuarine waters and leave to enter the mangroves at lengths 7-9 cm for males and 8 cm for females; after which they return to the sea (Ref. 99886).
Main reference
Αναφορές | Συντονιστής | Συνεργάτες
Ng, P.K.L. 1998. (Αναφ. 343)
IUCN Red List Status
(Αναφ. 130435: Version 2024-2)
CITES status (Αναφ. 108899)
Not Evaluated
CMS (Αναφ. 116361)
Not Evaluated
Human uses
αλιεία: Εμπορικό(ά)
FAO - Υδατοκαλλιέργειες: production, species profile; αλιεία: landings, species profile | FishSource | Η θάλασσα γύρω μας
Εργαλεία
Περισσότερες πληροφορίες
Διαδικτυακές πηγές
BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Υδατοκαλλιέργειες: species profile; αλιεία: species profile; publication : search) | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Δέντρο Ζωής | Wikipedia (Go, αναζήτηση) | Zoological Record
Estimates based on models
Preferred temperature
(Ref. 115969): 24.5 - 29.1, mean 28.1 (based on 1290 cells).
Ελαστικότητα
(Αναφ. 69278)
Υψηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού < 15 μήνες (K=0.43).
Prior r = 1.17, 95% CL = 0.77 - 1.75, Based on 3 data-limited stock assessments.