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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Image of Astarte borealis (Boreal Astarte)

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drawing shows typical species in Astartidae.

Classification / Names প্রচলিত নাম সমূহ | প্রতিনাম সমূহ | CoL | ITIS | WoRMS

Bivalvia | Carditida | Astartidae

Environment: milieu / climate zone / গভীরতার পরিসীমা / distribution range বাস্তুসংস্থান

; গভীরতার পরিসীমা 6 - 270 m (সূত্র 83435). Polar; 85°N - 34°N, 180°W - 180°E

Distribution দেশ সমূহ | এফ এ ও এলাকাসমূহ | বাস্তুতন্ত্র | দৃষ্টিগোচর | প্রচলন

Northern Pacific, Northern Atlantic and the Arctic.

Length at first maturity / আকৃতি / Weight / Age

পরিপক্কতা : L_m ? range ? - ? cm Max length : 5.1 cm SHL পুরুষ/ লিঙ্গ অনিধর্ারিত ; (সূত্র 360); common length : 2.5 cm পুরুষ/ লিঙ্গ অনিধর্ারিত ; (সূত্র 360)

Short description বহিঃ অঙ্গ সংস্থান

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 পরিপক্কতা | প্রজনন | ডিম ছাড়া | Eggs | ডিম্বধারন ক্ষমতা | 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.