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Tegillarca - Species in
Arcidae - - Classification -
- Arcidae
- Arcida
- Bivalvia
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Tegillarca granosa (Linnaeus, 1758)
Granular ark| Native range | All suitable habitat | Point map | Year 2050 |
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| This map was computer-generated and has not yet been reviewed. |
| Tegillarca granosa AquaMaps Data sources: GBIF OBIS |
Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS
Bivalvia | Arcida | Arcidae
Environment: milieu / climate zone / depth range / distribution range Ecology
Benthic; brackish; depth range 0 - 20 m (Ref. 101198). Tropical, preferred 27°C (Ref. 107945); 46°N - 39°S, 26°E - 134°W (Ref. 106948)
Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions
Indo-Pacific.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 2 - 2.1 cm Max length : 9.0 cm SHL male/unsexed; (Ref. 348); common length : 6.0 cm SHL male/unsexed; (Ref. 348); max. reported age: 12 years (Ref. 126573)
Short description Morphology
Shell equivalve, thick and solid, ovate, strongly inflated, slightly longer than high and feebly inequilateral. Umbones strongly protruding, cardinal area rather large. About 18 radial ribs (15 to 20) with wide interstices at each valve; ribs stout and distinctly rugose, bearing regular, often rectangular nodules. Periostracum rather thin and smooth. Internal margins with strong crenulations corresponding with the external radial ribs. No byssal gape. Colour: outside of shell white under the yellowish brown periostracum. Inner side white, often tinged yellow towards the umbonal cavity.
This represents the most important commercial ark (Ref. 348). Lives in intertidal and shallow subtidal waters. On muddy bottoms, mainly in protected bays and estuaries, or in mangroves. Often occurring in dense populations (Ref. 348). Typically found in the intertidal with silty bottoms with low salinity. A filter-feeder and a shallow burrower. Primarily feeds on organic detritus, phytoplankton and detritus (Ref. 101198).
Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Members of the class Bivalvia are mostly gonochoric, some are protandric hermaphrodites. Life cycle: Embryos develop into free-swimming trocophore larvae, succeeded by the bivalve veliger, resembling a miniature clam.
Main reference
References | Coordinator | Collaborators
Poutiers, J.M. 1998. (Ref. 348)
IUCN Red List Status
(Ref. 130435: Version 2024-2)
CITES status (Ref. 108899)
Not Evaluated
CMS (Ref. 116361)
Not Evaluated
Threat to humans
Harmless
Human uses
Fisheries: commercial
FAO - Aquaculture: production; Fisheries: landings, species profile | 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(Fisheries: species profile; 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): 21.8 - 29.3, mean 28.4 (based on 3701 cells).
Resilience
(Ref. 69278):
High, minimum population doubling time less than 15 months (K=0.54-4.34; tm=0.6; tmax=12).
Prior r = 0.85, 95% CL = 0.56 - 1.28, Based on 2 data-limited stock assessments.
Climate Vulnerability
(Ref. 125649):
High vulnerability (61 of 100).
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.