Ecology Summary - Tridacna squamosa

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Ecology of Tridacna squamosa

Main Ref.	Bernard, F.R., Y.Y. Cai and B. Morton, 1993
Remarks	In eastern Polynesia, it is known to be restricted to deep water (Ref. 87928). Found in intertidal areas on corals (Ref. 75831). Abundant on outer reef slope (Ref. 2923). Also found in a lagoon (Ref. 87813), on sandy bottoms (Ref. 106695), rubble or in reef pockets (Ref. 2923). Unattached or weakly attached by byssus as an adult (Ref. 2923). Tridacnids derive their nutrition from uptake of dissolved matter through their epidermis and from their symbiotic zooanthella Symbiodinium microadriaticum (Ref. 107098).

Main Ref.

Bernard, F.R., Y.Y. Cai and B. Morton, 1993

Remarks

In eastern Polynesia, it is known to be restricted to deep water (Ref. 87928). Found in intertidal areas on corals (Ref. 75831). Abundant on outer reef slope (Ref. 2923). Also found in a lagoon (Ref. 87813), on sandy bottoms (Ref. 106695), rubble or in reef pockets (Ref. 2923). Unattached or weakly attached by byssus as an adult (Ref. 2923). Tridacnids derive their nutrition from uptake of dissolved matter through their epidermis and from their symbiotic zooanthella Symbiodinium microadriaticum (Ref. 107098).

Aquatic zones / Water bodies

	Marine - Neritic	Marine - Oceanic	Brackishwater	Freshwater
Marine zones / Brackish and freshwater bodies	supra-littoral zone littoral zone sublittoral zone	epipelagic mesopelagic epipelagic abyssopelagic hadopelagic	estuaries/lagoons/brackish seas mangroves marshes/swamps	rivers/streams lakes/ponds caves exclusively in caves

Highighted items on the list are where Tridacna squamosa may be found.

Habitat

Substrate	Benthic: sessile; Soft Bottom: sand; Hard Bottom: rubble;
Substrate Ref.	Licuanan, S., 2050
Special habitats	Coral Reefs: reef slope/drop-offs; Corals: hard corals;
Special habitats Ref.	Bernard, F.R., Y.Y. Cai and B. Morton, 1993

Associations

Ref.	Poutiers, J.M., 1998
Associations
Associated with
Association remarks
Parasitism

feeding

Feeding type	mainly plants/detritus (troph. 2-2.19)
Feeding type Ref.	Ruppert, E.E., R.S. Fox and R.D. Barnes, 2004
Feeding habit	feeding on the prey of a host (commensal)
Feeding habit Ref.	Morton, B., 1990

Trophic Level(s)

Estimation method	original sample		unfished population		Remark
Estimation method	Troph	s.e.	Troph	s.e.	Remark
From diet composition
From individual food items	2.00	0.00			Tentative trophic level derived from 1 + troph of a single food item
Ref.

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