Bivalvia |
Carditida |
Astartidae
Environment: milieu / climate zone / пределы глубины / distribution range
экология
; пределы глубины 6 - 270 m (ссылка 83435). Polar; 85°N - 34°N, 180°W - 180°E
Northern Pacific, Northern Atlantic and the Arctic.
Length at first maturity / Size / Weight / Возраст
половая зрелость: Lm ? range ? - ? cm Max length : 5.1 cm SHL самец/пол неопределен; (ссылка 360); common length : 2.5 cm самец/пол неопределен; (ссылка 360)
Shell: solid, moderately convex valves equivalved and almost equilateral, circular or oval in shape, umbones frequently eroded; thick yellowish periostracum in young individuals, darkish brown to blackish in adults; cream-colored shell; sculpture consists of incised concentric lines sometimes toward the umbo, slightly raised ribs; external ligament takes over half the area posterior to the umbones; heterodont hinge, two cardinal teeth on the right valve and three on the left; smooth outer valve margin; two equal muscle scars (dimyarian, isomyarian) joined by a continuous pallial line (integropaliiate) without a sinus; crossed-lamellae structure. Body: pair of gills each has two series of lamellae extensively fused by interlamellar junctions (eulamellibranch); moderately developed foot.
Maximum depth from Ref. 117961. It prefers sandy substrates and mixed sediments (Ref. 96078), but in the Baltic Sea it is found in muddy areas, with low temperatures and medium high salinity at depths deeper than 35 meters, compared to shallower areas (Ref. 95730). This bivalve is a suspension feeder (Ref. 3477). Surface deposit feeder (Ref. 66387).
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
MarineSpecies.org 2050 MarineSpecies.org. http://www.marinespecies.org/index.php (ссылка 3477)
Статус Красного Списка МСОП
(ссылка 130435: Version 2025-1)
Статус СИТЕС (ссылка 108899)
Not Evaluated
CMS (ссылка 116361)
Not Evaluated
Угроза для людей
Использование человеком
| FishSource |
инструменты
дополнительная информация
Trophic EcologyFood items (preys)
состав пищи
потребление пищи
хищники
Life cycleразмножениеполовая зрелостьFecundityнерестEggsРазвитие икрыLarvae PhysiologyOxygen consumption
Human RelatedStamps, coins, misc.
ресурсы в Интернет
Estimates based on models
Preferred temperature
(Ref.
115969): 0.1 - 12, mean 2.5 (based on 1889 cells).
Fishing Vulnerability
Moderate vulnerability (39 of 100).
Категория цены
Unknown.
