Bivalvia |
Arcida |
Arcidae
Environment: milieu / climate zone / пределы глубины / distribution range
экология
; пределы глубины 0 - 20 m (ссылка 348). Tropical
Indo-Pacific: East Africa to Red Sea and Polynesia.
Length at first maturity / Size / Weight / Возраст
половая зрелость: Lm ?  range ? - ? cm Max length : 9.0 cm TL самец/пол неопределен; (ссылка 348); common length : 7.0 cm TL самец/пол неопределен; (ссылка 348)
Shell equivalve, thick and inflated, very inequilateral, posteriorly expanded. Shape somewhat irregular, elongate rectangular in outline, with strongly protruding umbones anteriorly and a broad rounded keel from umbones to posteroventral margin. Posterior margin obliquely truncate, ventral margin slightly sinuous with a well-developed byssal gape. Cardinal area wide and riblets crossed by irregular growth marks, and a few larger radial ribs on posterodorsal slope. Periostracum coarsely pilose, mainly persisting towards shell margins. Hinge straight very long and narrow. Internal margins smooth. Colour: Outside of shell often encrusted with marine growths; posterior half dark brown, anterior half creamy white with zebra-like brown stripes. Inner side more or less strongly tinged with dark brown.
Found in reef areas of lagoons (Ref. 97298). Fixed on rocks, corals, or under stones. Littoral to sublittoral waters to a depth of 20 m (Ref. 348).
Life cycle and mating behavior
половая зрелость | размножение | нерест | 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.
Основная ссылка
ссылки | координатор | соавторы
Poutiers, J.M. 1998. (ссылка 348)
Статус Красного Списка МСОП
(ссылка 130435: Version 2024-2)
Статус СИТЕС (ссылка 108899)
Not Evaluated
CMS (ссылка 116361)
Not Evaluated
Угроза для людей
Harmless
Использование человеком
рыболовство: коммерческий
| FishSource |
инструменты
дополнительная информация
Life cycleразмножениеполовая зрелостьFecundityнерестEggsРазвитие икрыLarvae PhysiologyOxygen consumption
Human RelatedStamps, coins, misc.
ресурсы в Интернет
Estimates based on models
Preferred temperature
(Ref.
115969): 24.2 - 29.2, mean 28 (based on 4316 cells).
устойчивость к внешним воздействиям
низкий, минимальное время удвоения популяции 4.5-14 лет (K=0.06).
Fishing Vulnerability
Moderate to high vulnerability (46 of 100).