Tridacna derasa, Smooth giant clam : fisheries

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  Cardiidae
- - Classification -
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Tridacna derasa (Röding, 1798)

Smooth giant clam

Native range | All suitable habitat | Point map | Year 2050

This map was computer-generated and has not yet been reviewed.

Tridacna derasa AquaMaps Data sources: GBIF OBIS

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Tridacna derasa

Classification / Names Populärnamn | synonymer | CoL | ITIS | WoRMS

Bivalvia | Cardiida | Cardiidae

Environment: milieu / climate zone / djupintervall / distribution range Ekologi

; djupintervall 0 - 20 m (Ref. 348), usually 0 - 15 m (Ref. 75831). Tropical; 23°C - 30°C (Ref. 102835); 19°N - 34°S, 100°E - 174°W (Ref. 106696)

Distribution Länder | FAO områden | Ekosystem | Förekomster | Utplanteringar

Indo-West Pacific.

Length at first maturity / Size / Weight / Age

Könsmognad: L_m ? range ? - ? cm Max length : 60.0 cm SHL hane/ej könsbestämd; (Ref. 348); common length : 50.0 cm SHL hane/ej könsbestämd; (Ref. 348)

Short description Morfologi

It is characterized by a low primary and radial sculpture, variable shape, massive umbonal area and smooth white shell.

Locally exploited for meat and shell. This species was previously quite abundant, but has been over collected in many areas. Aquaculture attempts being made (Ref. 348). Found in intertidal areas on corals (Ref. 75831), mainly on reef flats, barrier reefs, fore reefs and atoll lagoons (Ref. 117184). Common in shallow waters wherein juveniles are byssally attached to the tops and sides of coral outcrops. Adults are thought to detach their byssus and settle in clear ocean conditions at 20 m depth (Ref. 101207).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Eggs | Fecundity | Larvae

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

Main reference referenser | Koordinator | Medarbetare

SAUP Database. 2006. (Ref. 356)

IUCN Red List Status (Ref. 130435: Version 2024-2)

Endangered (EN) (A2acd); Date assessed: 23 May 2024

CITES status (Ref. 108899)

Appendix II: International trade monitored

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses

Fiskeri: kommersiell
FAO - Vattenbruk: production; | FishSource | Sea Around Us

Verktyg

E-book | Fälthandbok

Ytterligare information

Trophic Ecology

Födoslag
Födosammansättning
Födointag
Food rations
Predatorer

Ekologi

Population dynamics

Tillväxt
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Rekrytering
Abundans

Life cycle

Reproduktion
Könsmognad
Fecundity
Lek
Eggs
Egg development
Larvae
Larvdynamik

Distribution

Länder
FAO områden
Ekosystem
Förekomster
Utplanteringar

Human Related

Aquaculture profiles
Stamps, coins, misc.

Outreach

Medarbetare

Taxonomy

Populärnamn
synonymer
Morfologi
Bilder

referenser

Internet-källor

Estimates based on models

Preferred temperature (Ref. 115969): 24.7 - 29.3, mean 28.6 (based on 2248 cells).

Resiliens (Ref. 69278): Låg, lägsta populationsfördubblingstid 4,5-14 år (K=0.11-0.11; tm=4).

Vulnerability (Ref. 71543): High vulnerability (57 of 100).

Price category (Ref. 80766): Unknown.

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