Astarte borealis (Schumacher, 1817)

Boreal Astarte

Native range | All suitable habitat | Point map | Year 2050

This map was computer-generated and has not yet been reviewed.

Astarte borealis AquaMaps Data sources: GBIF OBIS

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drawing shows typical species in Astartidae.

Classification / Names ชื่อสามัญ | ชื่อพ้อง | CoL | ITIS | WoRMS

Bivalvia | Carditida | Astartidae

Environment: milieu / climate zone / ระดับความลึก / distribution range นิเวศวิทยา

; ระดับความลึก 6 - 270 m (อ้างอิง 83435). Polar; 85°N - 34°N, 180°W - 180°E

Distribution ประเทศต่างๆ | พื้นที่จำแนกตาม FAO | ระบบนิเวศหลายระบบ | การปรากฏขึ้น,การเกิดขึ้น,พบ | การแนะนำ

Northern Pacific, Northern Atlantic and the Arctic.

Length at first maturity / ขนาด / Weight / Age

วัยเจริญพันธุ์: L_m ? range ? - ? cm Max length : 5.1 cm SHL เพศผู้/กระเทย; (อ้างอิง 360); common length : 2.5 cm เพศผู้/กระเทย; (อ้างอิง 360)

Short description สัณฐานวิทยา

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 วัยเจริญพันธุ์ | การสืบพันธุ์ | การวางไข่ | Eggs | ความดกของไข่ | 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.