分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Chondrostei >
Acipenseriformes (Sturgeons and paddlefishes) >
Acipenseridae (Sturgeons) > Acipenserinae
Etymology: Pseudoscaphirhynchus: Greek, pseudes = false + Greek, skaphe = boat + Greek, rhyngchos = snout (Ref. 45335).
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); 深度上下限 1 - 2 m (Ref. 109751). 温带; 10°C - 20°C (Ref. 2059)
Asia: Former USSR: Amu Darya River from the Pyandzh to the mouths and lower tributaries. Sometimes in the brackish water of Taldyk Bay, the delta of the Amu Darya in the Aral Sea. Considered close to extinction (Ref. 6866). Registered in the 1984 USSR Red Book; 1985 Turkmen SSR Red Data Book; 1996 IUCN Red List (Ref. 35930).
亚洲与前苏联: 到河口及下游支流的阿姆河从皮延兹河。 有时在 Taldyk 海湾的半淡咸水, 在咸海中的阿姆三角洲。 被认为接近灭绝.(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). 在 1984 苏联红皮书中登记了; 1985 土库曼 SSR 保育红皮书; 1996 IUCN 警戒名单; d 1997< b>CITES 列出.(参考文献 35930)
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm 45.0 range ? - ? cm
Max length : 75.0 cm TL 雄鱼/尚未辨别雌雄; (Ref. 593); 最大体重: 2.0 kg (Ref. 593)
Its natural habitat and population have declined due to the breakage of the hydrological regime of the Amu Dariya River. Usual weight not more than 600-700 grams. Females with mature hard roe, very rare. Apparently sensitive to oxygen content in the water, changes in its chemical content, and to pollution. Fishing is prohibited (Ref. 35930). Spawns at 16° C (Ref. 719).
它的自然栖息地与族群已经消退由于 Amu Dariya 河的水文制度的破坏。 平常的重量不超过 600-700 克。 雌鱼有成熟的坚硬鱼白, 非常稀有的。 显然地在水 , 它的化学内容的改变对含氧量敏感, 与对污染。 钓鱼被禁止。 (参考文献 35930) 产卵在 16个 ° C 。 (参考文献 719)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
亚洲与前苏联: 到河口及下游支流的阿姆河从皮延兹河。 有时在 Taldyk 海湾的半淡咸水, 在咸海中的阿姆三角洲。 被认为接近灭绝.(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). 在 1984 苏联红皮书中登记了; 1985 土库曼 SSR 保育红皮书; 1996 IUCN 警戒名单; d 1997< b>CITES 列出.(参考文献 35930)
Berg, L.S., 1962. Freshwater fishes of the U.S.S.R. and adjacent countries. volume 1, 4th edition. Israel Program for Scientific Translations Ltd, Jerusalem. (Russian version published 1948). (Ref. 593)
世界自然保护联盟红皮书 (Ref. 130435)
极度濒危 (CR) (A2c); Date assessed: 14 September 2019
人类利用
渔业: 商业性
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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=0.00331 (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).
营养阶层 (Ref.
69278): 3.4 ±0.3 se; based on diet studies.
Generation time: 8.5 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
回复力 (Ref.
120179): 低的, 最小族群倍增时间4.5 - 14 年 (K=0.16; tm=6-7).
Fishing Vulnerability (Ref.
59153): High vulnerability (59 of 100).
