Bivalvia | Ostreoida
Environment: milieu / climate zone / depth range / distribution range
Benthic; depth range 0 - 20 m (Ref. 83435), usually ? - 10 m (Ref. 113981). Tropical; 24°C - 26°C (Ref. 113981), preferred 20°C (Ref. 107945); 45°N - 8°N, 98°W - 66°W
Western Atlantic: Argopecten irradians irradians, Argopecten irradians concentricus, Argopecten irradians amplicostatus. Introduced in Canada and China.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm Max length : 7.5 cm male/unsexed; (Ref. 83435); common length : 7.5 cm TL male/unsexed; (Ref. 344); max. reported age: 2 years (Ref. 8702)
Shell valves convex, upper valve less convex than more inflated lower valve. Surface sculpture of 19 to 21 strong, squarish ribs. Hinge with wing-like projections of about same size. Colour: lower valve light, usually whitish, upper valve dark brown to dark grey with darker markings.
Average life span of 20 to 26 months. Form beds on sandy, eelgrass or other seagrass bottoms (Ref. 344). Spawns after 1 year of age, during mass-spawning events that take place almost always in July (Ref. 344).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Spawns after 1 year of age, during mass-spawning events that take place almost always in July (Ref. 344).
Leal, J.H. 2003. (Ref. 344)
IUCN Red List Status (Ref. 115185)
CITES status (Ref. 108899)
Threat to humans
Fisheries: commercial; aquaculture: commercial
FAO(fisheries: production) | FishSource | Sea Around Us
Estimates of some properties based on models
): 9.7 - 12.7, mean 11.7 (based on 22 cells).