Isognomon perna, Rayed tree oyster
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Isognomon perna   (Linnaeus, 1767)

Rayed tree oyster

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

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

Bivalvia | Ostreida | Isognomonidae

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

Benthic; depth range 0 - 20 m (Ref. 348).  Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Indo-West Pacific: from eastern and southern Africa, to western Polynesia; north to Japan and Hawaii, and south to New Caledonia; Society Islands, eastern Polynesia.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm Max length : 7.5 cm ShL male/unsexed; (Ref. 348); common length : 4.0 cm SL male/unsexed; (Ref. 348)

Biology     Glossary (e.g. epibenthic)

Byssally attached to rocks, on reef flats or to the underside of boulders, on sand and gravel bottoms. May also occur at sub-littoral (Ref. 348) and intertidal depths on soft sediments (Ref. 87907).

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

Poutiers, J.M. 1998 Bivalves. Acephala, Lamellibranchia, Pelecypoda. p. 123-362. In Carpenter, K. E. and V. H. Niem. 1998. FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Volume 1. Seaweeds, corals, bivalves, and gastropods. Rome, FAO. (Ref. 348)

IUCN Red List Status (Ref. 130435: Version 2025-1)

  Not Evaluated 

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless

Human uses


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Trophic Ecology
Food items (preys)
Diet composition
Food consumption
Predators
Ecology
Ecology
Population dynamics
Growth
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Abundance
Life cycle
Reproduction
Maturity
Fecundity
Spawning
Eggs
Egg development
Larvae
Distribution
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FAO areas
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Occurrences
Introductions
Physiology
Oxygen consumption
Human Related
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Taxonomy
Common names
Synonyms
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References
References

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): 24.6 - 29.3, mean 28.4 (based on 3503 cells).
Fishing Vulnerability (Ref. 71543): Low vulnerability (10 of 100).
Price category (Ref. 80766): Unknown.

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