Amusium pleuronectes   (Linnaeus, 1758)

Asian moon scallop

Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Amusium pleuronectes  AquaMaps  Data sources: GBIF OBIS
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Amusium pleuronectes

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

Bivalvia | Pectinida | Pectinidae

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

Benthic; depth range 10 - 160 m (Ref. 348).  Tropical; 31°N - 21°S, 92°E - 156°E

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Indo-West Pacific: from Myanmar to Dampier Archipelago, north to southern Japan and east to Papua New Guinea.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?, range 5 - ? cm Max length : 10.0 cm ShL male/unsexed; (Ref. 348); common length : 8.0 cm SL male/unsexed; (Ref. 348); max. reported age: 2.00 years (Ref. 84612)

Short description Morphology

Shell thin, medium sized (commonly attaining 8 cm in length), laterally compressed, almost circular in outline, gaping anteriorly and posteriorly. Both valves somewhat convex, the right (lower) valve only a little more inflated and large than the left (upper) valve. Ears moderately small, subequal in size and shape, with the right anterior ear slightly sinuated anteroventrally and devoid of ctenolium. Surface of left valve with 2 broad and very shallow depressed areas radiating from the umbo to anteroventral and posteroventral margins. Outside of shell polished and nearly smooth, with only many faint concentric and radial lines. Interior of both valves with distinct radial ribs, usually in pairs, much narrower than the flat interstices and becoming obsolete on umbonal area. Right valve with 22 to 34 internal radial ribs (usually 26 to 34 in the typical subspecies Amusium pleuronectes pleuronectes, and 22 to 24 in the southern subspecies A. pleuronectes australiae). Colour: outside of left valve with light to deep pinky brown of varying shades along concentric growth marks, and with darker radial lines and tiny white dots on umbonal area. Interior of left valve whitish, often with a pinkish hue on margins and central area, and with a brown blotch under the hinge. Right valve white externally and internally.

Biology     Glossary (e.g. epibenthic)

Maximum depth from Ref. 101147. It is part of trawl bycatch (Ref. 128042). Widely distributed in Indo-Pacific coasts (Ref. 122164). Occurs in large schools in shallow waters with sand and muddy bottoms (Ref. 80041). Also found on clean sand with silt and shell rubble, where the lower right valve is buried in soft sediment (Ref. 101147) as well as on river mouth and estuary (Ref. 122165).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Spawning occurs throughout the year (Ref. 84612). Life cycle: Embryos develop into free-swimming trocophore larvae, succeeded by the bivalve veliger, resembling a miniature clam (Ref. 833).

Main reference References | Coordinator | Collaborators

Poutiers, J.M. 1998. (Ref. 348)

IUCN Red List Status (Ref. 130435)

  Not Evaluated 

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless

Human uses

Fisheries: commercial
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Tools

E-book | Field guide

Internet sources

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

Estimates based on models

Preferred temperature (Ref. 115969): 22 - 28.6, mean 27.3 (based on 975 cells).
Resilience (Ref. 69278): High, minimum population doubling time less than 15 months (K=0.92-1.3; tm=1; tmax=2).
Vulnerability (Ref. 71543): Low vulnerability (11 of 100).
Price category (Ref. 80766): Medium.