分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Chondrostei >
Acipenseriformes (Sturgeons and paddlefishes)
鱘形目 (Sturgeons and paddlefishes) >
Acipenseridae (Sturgeons)
鱘科 (Sturgeons) > Acipenserinae
Etymology: Acipenser: Latin, acipenser = sturgeon, 1853 (Ref. 45335).
More on author: Duméril.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的; 溯河洄游 (Ref. 51243), usually 8 - 10 m (Ref. 93286). 溫帶
Asia: China in Yangtze River system (Ref. 4537) and Korea (Ref. 12218). Endangered, close to extinction (Ref. 6866).
亞洲: 中國的長江流域 (參考文獻 4537) 與韓國.(參考文獻 12218) 瀕臨絕種的動物, 接近滅絕。 (參考文獻 6866) 國際間的買賣限制。 ( 引用2, 自從 1.4.98 以後)
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm 106.0 range ? - ? cm
Max length : 250 cm TL 雄魚/尚未辨別雌雄; (Ref. 38401); common length : 31.8 cm SL 雄魚/尚未辨別雌雄; (Ref. 35840)
背棘 (總數): 0; 背的軟條 (總數): 40-49; 臀棘 0; 臀鰭軟條: 27 - 30. Snout short and pointed; lips with small papilla; barbels 2 pairs and situated in belly of snout; body covered with 5 rows of ganoid scales and skin between scales rough (Ref. 45563).
吻短與尖的; 唇有小的乳突; 觸鬚 2 對而且位於吻的腹面之中; 身體覆蓋著在鱗片粗糙之間的 5個列的硬鱗與皮膚了。 (參考文獻 45563)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
亞洲: 中國的長江流域 (參考文獻 4537) 與韓國.(參考文獻 12218) 瀕臨絕種的動物, 接近滅絕。 (參考文獻 6866) 國際間的買賣限制。 ( 引用2, 自從 1.4.98 以後)
Birstein, V.J., 1993. Sturgeons and paddlefishes: threatened fishes in need of conservation. Conserv. Biol. 7:773-787. (Ref. 6866)
人類使用
漁業: 商業性
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00324 (0.00142 - 0.00736), b=3.17 (2.99 - 3.35), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
營養階層 (Ref.
69278): 2.0 ±0.00 se; based on food items.
Generation time: 19.2 ( na - na) years. Estimated as median ln(3)/K based on 1
growth studies.
回復力 (Ref.
120179): 非常低的, 最小族群倍增時間超過14 年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (86 of 100).
