Bivalvia |
Arcida |
Arcidae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Benthic; depth range 0 - 140 m (Ref. 83435). Tropical; 70°N - 34°S, 98°W - 2°E
Atlantic Ocean.
Length at first maturity / Size / Weight / Age
Maturity: Lm ? range ? - 5 cm Max length : 10.0 cm SHL male/unsexed; (Ref. 344)
Diagnostic features: Shell rectangular, elongate (twice as long as wide), equivalve. Sculpture of about 20 to 30 irregular radial ribs, and fine concentric threads that cross-ribs and interspaces. Byssal gap present opposite to hinge, moderately narrow. Hinge long. Colour: creamy white, streaked with reddish to dark brown wavy bands. Periostracum brown and dense on fresh shells, covering colour pattern almost completely (Ref. 344).
Maximum size reported in Malacolog database was 9 cm in length (Ref. 83435). Epibiotic (Ref. 104365). It is found attached to the underside of rocks and coral heads by byssus (Ref. 344). Commonly forms dense beds on rocky bottoms at depths of 1 and 20 m (Ref. 121800)
Life cycle: Embryos develop into free-swimming trocophore larvae, succeeded by the bivalve veliger, resembling a miniature clam (Ref. 833).
Leal, J.H. 2003 Bivalves. p. 25-98. In Carpenter, K.E. (ed.). The living marine resources of the Western Central Atlantic. Volume 1: Introduction, molluscs, crustaceans, hagfishes, sharks, batoid fishes, and chimaeras. FAO Species Identification Guide for Fishery Purposes and American Society of Ichthyologists and Herpetologists Special Publication No. 5. 1600p. (Ref. 344)
IUCN Red List Status
(Ref. 130435: Version 2025-1)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
Fisheries: commercial
| FishSource |
Tools
More information
Trophic EcologyFood items (preys)Diet compositionFood consumptionPredators PhysiologyOxygen consumption
Human RelatedStamps, coins, misc.
Internet sources
Estimates based on models
Preferred temperature
(Ref.
115969): 16.1 - 27.8, mean 25 (based on 628 cells).
Resilience
High, minimum population doubling time less than 15 months (K=1.2).
Fishing Vulnerability
Low vulnerability (10 of 100).
