Bivalvia |
Cardiida |
Cardiidae
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
Revassocierade; djupintervall 0 - 30 m (Ref. 348). Tropical; 23°C - 30°C (Ref. 102835); 29°N - 28°S, 91°E - 170°W
Indo-West Pacific.
Length at first maturity / Size / Weight / Age
Könsmognad: Lm ?, range 13 - 15 cm Max length : 50.0 cm SHL hane/ej könsbestämd; (Ref. 117184); common length : 20.0 cm SHL hane/ej könsbestämd; (Ref. 348)
The valves are thick, heavy and triangular in shape, often covered with reddish spots and obscured by encrustations. The mantle is a deep yellowgreen, irregularly mottled at the periphery and in the center.
Collected for food and shell, the latter commonly used in the shellcraft industry (Ref. 348). Maximum depth from Ref. 75831. In relatively shallow water, in lagoon, barrier and fringing reefs (Ref. 106851). Found in intertidal areas on corals (Ref. 75831). 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
Könsmognad | Reproduktion | Lek | Eggs | Fecundity | Larvae
Broadcast spawners. Life cycle: Embryos develop into free-swimming trocophore larvae, succeeded by the bivalve veliger, resembling a miniature clam (Ref. 833).
Poutiers, J.M. 1998. (Ref. 348)
IUCN Red List Status
(Ref. 130435: Version 2024-2)
CITES status (Ref. 108899)
Not Evaluated
Threat to humans
Harmless
Human uses
Fiskeri: kommersiell; Vattenbruk: kommersiell
| FishSource | Sea Around Us
Verktyg
Ytterligare information
Trophic EcologyFödoslagFödosammansättningFödointagFood rationsPredatorer Population dynamicsTillväxtMax. ages / sizesLength-weight rel.Length-length rel.Length-frequenciesMass conversionRekryteringAbundans Human RelatedAquaculture profiles
Stamps, coins, misc.
Internet-källor
Estimates based on models
Preferred temperature
(Ref.
115969): 25.6 - 29.3, mean 28.7 (based on 2485 cells).
Resiliens
Låg, lägsta populationsfördubblingstid 4,5-14 år (K=0.12-0.2; tm=4).
Vulnerability
Moderate to high vulnerability (53 of 100).
Price category
Unknown.
Nutrients : Calcium = 149 [71, 228] mg/100g; Iron = 8.53 [1.95, 15.11] mg/100g; Protein = 9.88 [8.64, 11.12] %; Omega3 = 0.313 [0.202, 0.423] g/100g; Selenium = 61 [50, 72] μg/100g; VitaminA = 0 μg/100g; Zinc = 2.04 [0.56, 3.51] mg/100g (wet weight); based on
nutrient studies.