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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

Madagascar country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: fairly common (chances are about 50%) | Ref: Neo, M.L., C.C.C. Wabnitz, R.D. Braley, G.A. Heslinga, C. Fauvelot, S. Van Wynsberge, S. Andrefouet, C. Waters, A.S.-H. Tan, E.D. Gomez, M.J. Costello and P.A. Todd, 2017
Importance: | Ref:
Aquaculture: never/rarely | Ref:
Regulations: no regulations | Ref:
Uses: no uses
Comments: C: Refs. 348, 117184.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ma.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Poutiers, J.M., 1998
National Database:

Common names from other countries

Bénitier, ... more

Classification / Names / Names Nombres comunes | Sinónimos | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS

> Cardiida () > Cardiidae (cockles)

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

Asociado a arrecife; no migratorio (Ref. 348); salobre; rango de profundidad 0 - 35 m (Ref. 348).   Tropical; 23°C - 30°C (Ref. 102835); 28°N - 37°S, 31°E - 128°W

Distribución Países | Áreas FAO | Ecosistemas | Ocurrencias, apariciones | Introducciones

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

Length at first maturity / Tamaño / Peso / Age

Maturity: Lm ?, range 6 - 13 cm Max length : 41.7 cm SHL macho / no sexado; (Ref. 117184); common length : 25.0 cm SHL macho / no sexado; (Ref. 348)

Short description Morfología

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

Biología     Glosario (por ej. 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 Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva

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

Main reference Referencias | Coordinador | Colaboradores

SAUP Database. 2006. (Ref. 356)

IUCN Red List Status (Ref. 130435)

  Lower Risk: conservation dependent (LR/cd) ; Date assessed: 01 August 1996

CITES status (Ref. 108899)

Appendix II: International trade monitored

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Reports of ciguatera poisoning (Ref. 130160)

Human uses

Pesquerías: comercial
FAO - Acuicultura: producción; | FishSource | Sea Around Us

Herramientas

E-book | Guía de campo

Fuentes de Internet

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(; publication : search) | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Árbol de la vida | Wikipedia (Go, búsqueda) | Expediente Zoológico

Estimates based on models

Preferred temperature (Ref. 115969): 24.8 - 29.3, mean 28.4 (based on 3421 cells).
Resiliencia (Ref. 69278) Medio, población duplicada en un tiempo mínimo de 1.4-4.4 años (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.
Vulnerability (Ref. 71543): Low vulnerability (25 of 100).
Price category (Ref. 80766): Unknown.