Bivalvia |
Arcida |
Arcidae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Benthic; brackish; depth range 0 - 20 m (Ref. 109200), usually 0 - 15 m (Ref. 80605). Subtropical; 26°C - 38°C (Ref. 68684); 27°N - 4°S, 114°W - 77°W (Ref. 109211)
Eastern Pacific: From Laguna Ballena, Baja California Sur, Mexico to Bahía de Tumbes, Peru.
Length at first maturity / Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Found in salinities from 30-40 ppt in Baja California Sur, Mexico (Ref. 68684). Occurs in mangrove estuaries (Ref. 80605). Lives mainly in or near the red mangrove Rhizophora mangle (Ref. 109200) as well among the roots of Avicennia germinans and Laguncularia racemosa (Ref. 121717). Individuals are found at about 15 cm deep in level muddy bottom among the prop roots of Rhizophora spp. (Ref. 80605), in intertidal mud flats between mangrove trees and the low tide line (Ref. 109200).
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.
Turgeon, D.D., J.F. Quinn Jr., A.E. Bogan, E.V. Coan, F.G. Hochberg, W.G. Lyons, P.M. Mikkelsen, R.J. Neves, C.F.E. Roper, G. Rosenberg, B. Roth, A. Scheltema, F.G. Thompson, M. Vecchione and J.D. Willams 1998 Common and scientific names of aquatic invertebrates from the United States and Canada: Mollusks, 2nd ed. American Fisheries Society (Special publication 26), Bethesda, Maryland. 526 p. (Ref. 1667)
IUCN Red List Status
(Ref. 130435: Version 2025-1)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
Fisheries: commercial
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Tools
More information
Population dynamicsGrowthMax. ages / sizesLength-weight rel.Length-length rel.Length-frequenciesMass conversionAbundance Life cycleReproductionMaturityFecunditySpawningEggsEgg developmentLarvae PhysiologyOxygen consumption
Human RelatedStamps, coins, misc.
Internet sources
Estimates based on models
Preferred temperature
(Ref.
115969): 24.3 - 29.1, mean 27.5 (based on 139 cells).
Resilience
High, minimum population doubling time less than 15 months (K=0.09-1.85).
