Zygochlamys patagonica   (King & Broderip, 1832)

Patagonean scallop

Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Zygochlamys patagonica  AquaMaps  Data sources: GBIF OBIS
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drawing shows typical species in Pectinidae.

Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

Bivalvia | Pectinida | Pectinidae

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

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

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

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)

Biology     Glossary (e.g. epibenthic)

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.

Main reference References | Coordinator | Collaborators

Rosenberg, G. 2009. (Ref. 83435)

IUCN Red List Status (Ref. 126983)

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans


Human uses

Fisheries: commercial
FAO - Fisheries: landings | FishSource | Sea Around Us


More information

Common names
Egg development

Internet sources

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Fisheries: ; publication : search) | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Tree of Life | Wikipedia (Go, Search) | Zoological Record

Estimates of some properties based on models

Resilience (Ref. 69278): 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.
Price category (Ref. 80766): Medium.