Bivalvia | Pectinida
Environment: milieu / climate zone / depth range / distribution range
Sessile; depth range 1 - 270 m (Ref. 87801), usually 70 - 120 m (Ref. 114844). Subtropical, preferred 8°C (Ref. 107945); 26°S - 65°S, 110°W - 53°W
Southeast Pacific, Southwest Atlantic and Antarctic: Magellanic biogeographic province. In the Pacific from Puerto Montt to Strait of Magellan and Cape Horn (56°S) to the Atlantic northwards to Rio de la Plata estuary (35°S). Also from Palmer Archipelago, Antarctica and Easter Island. Introduced in the Mediterranean. Subtropical to polar.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm Max length : 7.8 cm SHL male/unsexed; (Ref. 83435)
The Patagonian scallop fishery of this species has been certified by the Marine Stewardship Council (http://www.msc.org/) as well-managed and sustainable (http://www.msc.org/html/content_1294.htm). This is an epifaunal species found at depths of 1 to 270 meters. Adults live on the bottom supported by their right valve while juveniles appear as epibionts of algae and other invertebrates. Single species found in shallow waters and forms large banks in deeper waters. Larvae are free-living (Ref. 87801). It is found in forests of Macrocystis pyrifera (Ref. 92889).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
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.
Rosenberg, G. 2009. (Ref. 83435)
IUCN Red List Status (Ref. 126983)
CITES status (Ref. 108899)
Threat to humans
FAO - Fisheries: landings | FishSource | Sea Around Us
Estimates of some properties based on models
High, minimum population doubling time less than 15 months (K=0.19-0.62).
Prior r = 0.57, 95% CL = 0.37 - 0.85, Based on 1 stock assessment.