Advertisement

You can sponsor this page

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
Upload your photos 
 | All pictures | Google image |
Image of Tridacna maxima (Elongate giant clam)
Tridacna maxima

Seychelles country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: scarce (very unlikely) | 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: Known from Aride Island Beach, Mahe and Silhouette Island (Ref. 117184). C: Refs. 2922, 117184.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/se.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Oliver, P.G., A.M. Holmes, I.J. Killeen, J.M. Light and H. Wood, 2004
National Database:

Common names from other countries

Bénitier, ... more

Classification / Names / Names Nomi Comuni | Sinonimi | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS

> Cardiida () > Cardiidae (cockles)

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

Associati a barriera corallina; non migratori (Ref. 348); salmastro; distribuzione batimetrica 0 - 35 m (Ref. 348).   Tropical; 23°C - 30°C (Ref. 102835); 28°N - 37°S, 31°E - 128°W

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Introduzioni

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

Length at first maturity / Size / Peso / Age

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

Short description Morfologia

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

Biologia     Glossario (es. 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 Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve

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

Main reference Bibliografia | Coordinatore | Collaboratori

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

Pesca: commerciale
FAO - Acquacoltura: production; | FishSource | Sea Around Us

Strumenti

E-book | Giuda pratica

Fonti Internet

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

Estimates based on models

Preferred temperature (Ref. 115969): 24.8 - 29.3, mean 28.4 (based on 3421 cells).
Resilienza (Ref. 69278) Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (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.