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Pinctada margaritifera   (Linnaeus, 1758)

Pacific pearl-oyster

Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Pinctada margaritifera   AquaMaps   Data sources: GBIF OBIS
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Image of Pinctada margaritifera (Pacific pearl-oyster)
Picture by Batoy, Corazon B.

Bivalvia | Pterioida | Pteriidae
Common names | Synonyms | CoL | ITIS | WoRMS

Main reference
Poutiers, J.M. 1998. (Ref. 348)
References | Biblio | Coordinator | Collaborators

Size / Weight / Age
Max length : 9.8 cm TL male/unsexed; (Ref. 2922)

Benthic; depth range 0 - 40 m (Ref. 80041), usually 0 - 20 m (Ref. 75831)

Climate / Range
Tropical; 38°N - 33°S, 180°W - 180°E

Indo-Pacific: from Mexico to Tanzania and Red Sea.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description
Shell rather thick and large (attaining 25 cm in length), subcircular in outline, with a short and ill-defined posterior ear which is not drawn out into a wing-like process. Anterior margin markedly protruding beyond the tip of anterior ear. Outer surface of valves, when not worn, with densely set, flattened, imbricating concentric scales and moderately long, parallel-sided and flattened spines with tapering or rounded ends; spines lying relatively flat on surface of valves, arranged in radial rows and often strongly projecting on shell margins. hinge completely devoid of teeth. Colour: outside of shell greyish brown or green to nearly black in ground colour, with radial stripes of white or yellowish markings corresponding to the basal portion of old flattened spines. Internal nacreous area silvery, with a darker smoky hue and a hint of red and green iridescence on border. Non-nacreous area very dark.

Biology     Glossary (e.g. epibenthic)

Byssally attached to rocks and coral debris (Ref. 8010). Inhabits reef areas of lagoons (Ref. 97298). Some found lying freely on sand, coarse gravel or dead coral substrates and often found in eel grass beds and other marine plants (Ref. 80041). Feeds on phytoplankton (Ref. 96904). A continuous spawner (peak: December to April, warm season) (Ref. 96997). A continuous spawner. Fecundity: value of a recomputed from mm (Ref. 96997).

IUCN Red List Status (Ref. 114614)


CITES status (Ref. 94142)

Not Evaluated

Threat to humans

Human uses
Fisheries: commercial
| FisheriesWiki | Sea Around Us |

Internet sources
BHL | BOLD Systems | Check for other websites | Check FishWatcher | CISTI | DiscoverLife | FAO(Publication : search) | GenBank (genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | ispecies | National databases | PubMed | Scirus | Sea Around Us | FishBase | Tree of Life | uBio | uBio RSS | Wikipedia (Go, Search) | Zoological Record

Estimation of some characteristics with mathematical models

Vulnerability (Ref. 71543)
Low to moderate vulnerability (33 of 100)
Price category (Ref. 80766)