Bivalvia |
Arcida |
Arcidae
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
Benthic; profondeur 0 - 20 m. Tropical, preferred 18°C (Réf. 107945)
Western Pacific. Introduced in the Black Sea.
Longueur à la première maturité / Taille / Poids / Âge
Maturité: Lm ? range ? - ? cm Max length : 6.0 cm TL mâle / non sexé; (Réf. 348); common length : 4.0 cm TL mâle / non sexé; (Réf. 348)
Description synthétique
Morphologie
Shell thick and solid, inflated, inequilateral, somewhat transversally elongate in shape and with height greater than inflation, roughly quadrate to trapezoidal in outline; slightly inequivalve, left valve slightly overlapping right valve along posteroventral margin. Anterior margin rounded, ventral margin widely convex and meeting the oblique posterior margin at a blunt angle. Umbones moderately prominent, situated well anterior to midline valves. Posterodorsal slope flattened to slightly concave toward posterior end of dorsal margin, set off by a broad rounded ridge radiating from the umbones to posteroventral end of shell. Cardinal area rather narrow and elongated. About 28 radial ribs (26 to 30) at each valve, as wide as the interstices, mainly granulated on left valve. Periostracum well developed, concentrically striated, scaly to spiky in the interstices of ribs. Internal margins with strong crenulations corresponding with the external radial ribbing. No byssal gape. Colour: outside of shell white, frequently tinged deep bluish green posteriorly; periostracum dark greyish brown. Interior whitish.
Filter feeder (Ref. 128255). On sand and mud bottoms. Littoral and sublittoral to depth of about 20 m.
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Members of the class Bivalvia are mostly gonochoric, some are protandric hermaphrodites. Life cycle: Embryos develop into free-swimming trocophore larvae, succeeded by the bivalve veliger, resembling a miniature clam.
Poutiers, J.M. 1998 Bivalves. Acephala, Lamellibranchia, Pelecypoda. p. 123-362. In Carpenter, K. E. and V. H. Niem. 1998. FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Volume 1. Seaweeds, corals, bivalves, and gastropods. Rome, FAO. (Réf. 348)
Statut dans la liste rouge de l'IUCN
(Réf. 130435: Version 2025-2 (Global))
statut CITES (Réf. 108899)
Not Evaluated
Not Evaluated
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: commercial
FAO - pêcheries: landings search; Publication: search | FishSource | Sea Around Us
Outils
Plus d'informations
Écologie trophiqueAliments (proies)
Composition du régime alimentaire
Consommation alimentaire
Prédateurs
Dynamique des populations Cycle de vieReproductionMaturitéFéconditéFraiŒufsDéveloppement de l'œufLarves PhysiologieConsommation d'oxygène
Liées à l'hommeTimbres, pièces de monnaie, divers
Sources Internet
Estimations basées sur des modèles
Résilience
(Ref. 69278): |
Haut, temps minimum de doublement de population inférieur à 15 mois (K=0.37) |
Vulnérabilité de la pêche
(Réf. 71543) |
Low to moderate vulnerability (29 of 100). |
Vulnérabilité climatique
(Réf. 125649) |
Very high vulnerability (78 of 100) |
Catégorie de prix
(Réf. 80766): |
Unknown. |
Nutrients
|
Calcium = 149 [71, 228] mg/100g; Iron = 8.53 [1.95, 15.11] mg/100g; Protein = 9.88 [8.64, 11.12] %; Omega3 = 0.313 [0.202, 0.423] g/100g; Selenium = 61 [50, 72] μg/100g; VitaminA = 0 μg/100g; Zinc = 2.04 [0.56, 3.51] mg/100g (wet weight); based on nutrient studies. |
