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Tridacna - Species in
Cardiidae - - Classification -
- Cardiidae
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Tridacna squamosa Lamarck, 1819
Fluted giant clam| Native range | All suitable habitat | Point map | Year 2050 |
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| This map was computer-generated and has not yet been reviewed. |
| Tridacna squamosa AquaMaps Data sources: GBIF OBIS |
Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS
Bivalvia | Cardiida | Cardiidae
Environment: milieu / climate zone / depth range / distribution range Ecology
Benthic; depth range 0 - 42 m (Ref. 117184). Tropical; 31°N - 32°S, 30°E - 124°W
Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions
Indo-Pacific: from East Africa to the Red Sea, (but not the Persian Gulf) to as far east as Pitcairn Islands, north to southern Japan, and south to Queensland, Australia and New Caledonia. Introduced in Hawaii and Guam.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 16 - 20 cm Max length : 45.0 cm SHL male/unsexed; (Ref. 95990); common length : 30.0 cm SHL male/unsexed; (Ref. 348)
Short description Morphology
The species has an elongate shell with conspicuous fluted scales on its radial ridges. The valves are white and occasionally tinged with orange, and the mantle yellowish green.
Maximum depth from Ref. 87928. 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).
Life cycle and mating behavior Maturity | Reproduction | Spawning | 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
References | Coordinator | Collaborators
SAUP Database. 2006. (Ref. 356)
IUCN Red List Status
(Ref. 130435: Version 2024-2)
Least Concern (LC) ; Date assessed: 28 May 2024
CITES status (Ref. 108899)
Appendix II: International trade monitored
CMS (Ref. 116361)
Not Evaluated
Threat to humans
Human uses
Fisheries: commercial
FAO - Aquaculture: production; | FishSource | Sea Around Us
Tools
More information
Trophic Ecology
Ecology
Population dynamics
Growth
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Abundance
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Abundance
Life cycle
Physiology
Oxygen consumption
Human Related
Stamps, coins, misc.
Outreach
References
Internet sources
BHL | BOLD Systems | CISTI | DiscoverLife | FAO(; publication : search) | Fishipedia | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Tree of Life | Wikipedia (Go, Search) | Zoological Record
Estimates based on models
Preferred temperature
(Ref. 115969): 25 - 29.3, mean 28.4 (based on 3457 cells).
Resilience
(Ref. 69278):
Medium, minimum population doubling time 1.4 - 4.4 years (K=0.08-0.23; tm=4).
Price category
(Ref. 80766):
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.