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Tridacna maxima   (Röding, 1798)

Elongate giant clam

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

Mayotte country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: C: Refs. 105502, 117184.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/mf.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: CITES, 2006
National Database:

Common names from other countries

Bénitier, ... more

Classification / Names / Names Noms communs | Synonymes | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS

> Cardiida () > Cardiidae (cockles)

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

Récifal; non migrateur (Ref. 348); saumâtre; profondeur 0 - 35 m (Ref. 348).   Tropical; 23°C - 30°C (Ref. 102835); 28°N - 37°S, 31°E - 128°W

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Introductions

Indo-Pacific: Egypt to Pitcairn Islands and Ogasawara, Japan to Lord Howe Island.

Length at first maturity / Taille / Poids / Âge

Maturity: Lm ?, range 6 - 13 cm Max length : 41.7 cm SHL mâle / non sexé; (Ref. 117184); common length : 25.0 cm SHL mâle / non sexé; (Ref. 348)

Description synthétique Morphologie

The mantle color is highly variable, ranging from bright blue to brown.

Biologie     Glossaire (ex. epibenthic)

Collected for food and for the shell trade. Aquaculture trials have been done in 1998 (Ref. 348). Maximum depth from Ref. 75831. Found in coral reef flats in shallow areas (Ref. 799), reef areas of lagoons (Ref. 97298) and in intertidal areas (Ref. 75831). Mixotrophic - filter feeds and photosynthesizes via its zooxanthellae (Ref. 105208). Tridacnids derive their nutrition from uptake of dissolved matter through their epidermis and from their symbiotic zooanthella Symbiodinium microadriaticum (Ref. 107098).

Life cycle and mating behavior Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

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

Référence principale Références | Coordinateur | Collaborateurs

SAUP Database. 2006. (Ref. 356)

Statut dans la liste rouge de l'IUCN (Ref. 130435)

  Risque faible : dépendant de la protection (LR/cd) ; Date assessed: 01 August 1996

statut CITES (Ref. 108899)

Appendix II: International trade monitored

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

  Reports of ciguatera poisoning (Ref. 130160)

Utilisations par l'homme

Pêcheries: commercial
FAO - Aquaculture: production; | FishSource | Sea Around Us

Outils

E-book | Guide de terrain

Sources Internet

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(; publication : search) | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Arbre de Vie | Wikipedia (Go, chercher) | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 24.8 - 29.3, mean 28.4 (based on 3421 cells).
Résilience (Ref. 69278) Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (K=0.18-0.28; tm=3.8).
Prior r = 0.49, 95% CL = 0.32 - 0.73, Based on 1 data-limited stock assessment.
Vulnérabilité (Ref. 71543): Low vulnerability (25 of 100).
Catégorie de prix (Ref. 80766): Unknown.