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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

Northern Marianas Islands 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: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: C: Refs. 114509, 114510, 117184.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/cq.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Baillie, J. and B. Groombridge, 1996
National Database:

Common names from other countries

Bénitier, ... more

Classification / Names / Names Populaire namen | Synoniemen | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS

> Cardiida () > Cardiidae (cockles)

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

Rifbewoner; standvastig (Ref. 348); brakwater; diepteverspreiding 0 - 35 m (Ref. 348).   Tropical; 23°C - 30°C (Ref. 102835); 28°N - 37°S, 31°E - 128°W

Verspreiding Landen | FAO regio's | Ecosystems | Voorkomen | Introducties

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

Length at first maturity / Size / Gewicht / Leeftijd

Maturity: Lm ?, range 6 - 13 cm Max length : 41.7 cm SHL mannelijk/geslacht niet bekend; (Ref. 117184); common length : 25.0 cm SHL mannelijk/geslacht niet bekend; (Ref. 348)

Korte beschrijving Morfologie

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

Biologie     Verklarende woordenlijst (b.v. 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 Geslachtsrijpheid | Voortplanting | Kuitschieten | Eieren | Fecundity | Larven

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

Voornaamste referentie Referenties | Coördinator | Medewerkers

SAUP Database. 2006. (Ref. 356)

Status op de Rode Lijst van het IUCN (Ref. 130435)

  Kleiner risico: van bescherming afhankelijk (LR/cd) ; Date assessed: 01 August 1996

Status bij CITES (Ref. 108899)

Appendix II: International trade monitored

CMS (Ref. 116361)

Not Evaluated

Gevaarlijk voor mensen

  Reports of ciguatera poisoning (Ref. 130160)

Gebruik door de mens

Visserij: commercieel
FAO - Aquacultuur: production; | FishSource | Sea Around Us

Tools

E-book | Veldgids

Internet-bronnen

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

Estimates based on models

Preferred temperature (Ref. 115969): 24.8 - 29.3, mean 28.4 (based on 3421 cells).
Weerstandsvermogen (Ref. 69278) Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (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.
Kwetsbaarheid (Ref. 71543): Low vulnerability (25 of 100).
Prijsklasse (Ref. 80766): Unknown.