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Pseudoscaphirhynchus fedtschenkoi (Kessler, 1872)

Syr Darya sturgeon
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Pseudoscaphirhynchus fedtschenkoi
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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: Pseudoscaphirhynchus: Greek, pseudes = false + Greek, skaphe = boat + Greek, rhyngchos = snout (Ref. 45335).

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 生態學

; 淡水; 半鹹淡水 居於水底的; 河川洄游 (Ref. 51243). 溫帶

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri

Asia: Endemic to Syr Darya basin of the Aral Sea (Ref. 35924). Considered endangered or extinct by authors (Ref. 6866).
前蘇聯: 鹹海錫爾河流域的特有種.(參考文獻 35924) 被認為是瀕臨絕種或滅絕的由命名者.(參考文獻 6866) 國際間的買賣限制 ( 引用2, 自從 1.4.98 以後; 公分 附錄 2).

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 65.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 52333)

生物學特性     字彙 (例如 epibenthic)


Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚

前蘇聯: 鹹海錫爾河流域的特有種.(參考文獻 35924) 被認為是瀕臨絕種或滅絕的由命名者.(參考文獻 6866) 國際間的買賣限制 ( 引用2, 自從 1.4.98 以後; 公分 附錄 2).

主要參考資料 Upload your references | 參考文獻 | 合作者 | 合作者

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)

IUCN 瀕危狀態 (Ref. 130435)

  極危 (CR) (A2bc); Date assessed: 14 September 2019

CITES

Appendix II: International trade monitored

CMS (Ref. 116361)

Appendix II: Migratory species conserved through agreements

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.6250   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00331 (0.00148 - 0.00739), b=3.16 (2.98 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
營養階層 (Ref. 69278):  3.3   ±0.5 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Moderate to high vulnerability (46 of 100).