Common names from other countries
分類 / Names
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Acipenseriformes (Sturgeons and paddlefishes) >
Acipenseridae (Sturgeons) > Acipenserinae
Etymology: Acipenser: Latin, acipenser = sturgeon, 1853 (Ref. 45335); gueldenstaedtii: Named for Johann Anton Güldenstädt (1745-1781)..
Environment: milieu / climate zone / depth range / distribution range
生態学
海; 新鮮な水; 汽水性の 底生の; 昇流魚 (Ref. 51243); 深さの範囲 2 - 100 m, usually 10 - 25 m. Temperate; 10°C - 20°C (Ref. 2059); 61°N - 35°N, 26°E - 54°E
Eurasia: Black Sea, Sea of Azov and Caspian Sea basins. Introduced throughout Europe.
Length at first maturity / サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 236 cm TL オス/雌雄の選別がない; (Ref. 59043); common length : 145 cm TL オス/雌雄の選別がない; (Ref. 3561); 最大公表体重: 115.0 kg (Ref. 6866); 最大記録サイズ: 46 年 (Ref. 3561)
簡単な記述
検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 0; 背鰭 (合計) : 27 - 48; 臀鰭: 16 - 35. Under the name A. g. colchicus. Lower lip not continuous, interrupted at center. Five rows of scutes: dorsal 7-19, lateral 24-44 on each side, ventral 6-13 on each side, with lines of smaller stellate bony plates between the dorsal and ventral rows. Color of back olivaceous grey, flanks lighter, and belly white.
Anadromous and freshwater populations exist. At the sea, it occurs in shallow coastal and estuarine zones. In freshwaters, it inhabits deep parts of large rivers with moderate to swift current (Ref. 59043). Found mainly near the shore over sand and mud. Usually solitary, but swarms when hibernating or during spawning migrations. Occasionally forms schools (Ref. 3241). Feeds on benthic molluscs, crustaceans and small fishes. Spawns on stone or gravel bottom in large and deep rivers with strong current, 1-1.5 m/s (Ref. 59043). Mainly propagated through artificial reproduction.
Under the name A. g. colchicus. Spawns in rivers. Natural spawning not extensive, maintained chiefly by artificial propagation. Enters rivers from April to June (a few in autumn).
Sokolov, L.I. and L.S. Berdicheskii, 1989. Acipenseridae. p. 150-153. In J. Holcík (ed.) The freshwater fishes of Europe. Vol. 1, Part II. General introduction to fishes Acipenseriformes. AULA-Verlag Wiesbaden. 469 p. (Ref. 9953)
Human uses
水産業: 商業; 水産養殖: 商業; 水族館・水槽: 公共の水族館
用具
特記事項
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インターネットの情報源
Estimates based on models
Preferred temperature (Ref.
115969): 10.7 - 15.9, mean 13.8 (based on 32 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00437 (0.00268 - 0.00711), b=3.12 (2.99 - 3.25), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
栄養段階 (Ref.
69278): 3.3 ±0.1 se; based on diet studies.
回復力 (Ref.
120179): 非常に低い, １４年以上の倍増期間の最小個体群 (tm=11; Fec = 26,000).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (87 of 100).
Climate Vulnerability (Ref.
125649): High vulnerability (62 of 100).
