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> Acipenseriformes (Sturgeons and paddlefishes) > Acipenseridae (Sturgeons)
Etymology: Acipenser:Latin, acipenser = sturgeon, 1853 (Ref. 45335). Eponymy: ‘Mikado’ is a (now obsolete) term for the Emperor of Japan. [...] (Ref. 128868), visit book page. More on author: Hilgendorf.
محیط زیست: محیط زیست / منطقه آب و هوایی / تغييرات عمق / محدوده توزیع بوم شناسي
Northwest Pacific: Bering Sea, Tumnin (Datta) river, to northern Japan and Korea. This species was formerly regarded to be a population of Acipenser medirostris (Ref. 6866).
اندازه / وزن / سن
بلوغ: Lm? range ? - ? cm Max length : 150 cm TL جنس نر / بدون خواص جنسي; (Ref. 12218)
خارهاي باله پشتي (کل) : 0; شعاع نرم باله پشتي (کل) : 33 - 40; خارهاي باله مخرجي: 0; شعاع نرم باله مخرجي: 22 - 30. Body shields in 5 rows; dorsal shields 7 to 11, lateral 22 to 36 and ventral 10. Body shape (shape guide): elongated; Cross section: angular.
Commercially cultured in Japan (Ref. 6866). From April to May adults feed in fresh water and return to the ocean during the fall (Ref. 12218). Generation time: 15 years (Ref. 116373).
چرخه زندگی و رفتار جفتگیری بلوغ | تولید مثل | تخم ریزی | تخم ها | باروری | توزاد ( لارو)
Eggs are laid from April to August under the substrate in sandy areas (Ref. 12218).
