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Chondrostei >
Acipenseriformes (Sturgeons and paddlefishes) >
Acipenseridae (Sturgeons) > Acipenserinae
Etymology: Pseudoscaphirhynchus: Greek, pseudes = false + Greek, skaphe = boat + Greek, rhyngchos = snout (Ref. 45335).
Eponymy: Alexei Pavlovich Fedtschenko (or Fedchenko) (1844–1873), a graduate in zoology and geology from Moscow University, was a naturalist and explorer of Central Asia. [...] (Ref. 128868), visit book page.
Issue
Species of the genus Pseudoscaphirhynchus belong to the subfamily Acipenserinae, and not Scaphirhynchinae as it was previously considered (V. Birstein, pers. comm. 03/05 ).
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水; 半咸淡水 居于水底的; 河川洄游 (Ref. 51243). 温带
Asia: Endemic to Syr Darya basin of the Aral Sea (Ref. 35924). Considered endangered or extinct by authors (Ref. 6866).
前苏联: 咸海锡尔河流域的特有种.(参考文献 35924) 被认为是濒临绝种或灭绝的由命名者.(参考文献 6866) 国际间的买卖限制 ( CITES2, 自从 1.4.98 以后; CMS 附录 2).
大小 / 重量 / 年龄
Maturity: Lm ?  range ? - ? cm
Max length : 65.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 52333)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
前苏联: 咸海锡尔河流域的特有种.(参考文献 35924) 被认为是濒临绝种或灭绝的由命名者.(参考文献 6866) 国际间的买卖限制 ( CITES2, 自从 1.4.98 以后; CMS 附录 2).
Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea and W.B. Scott, 1991. World fishes important to North Americans. Exclusive of species from the continental waters of the United States and Canada. Am. Fish. Soc. Spec. Publ. (21):243 p. (Ref. 4537)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-1)
极度濒危 (CR) (A2bc); Date assessed: 14 September 2019
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00309 (0.00138 - 0.00693), b=3.17 (2.98 - 3.36), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.3 ±0.5 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 中等的, 族群倍增时间最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (46 of 100).