Pseudoscaphirhynchus kaufmanni (Kessler, 1877)

Amu Darya sturgeon

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Actinopterygii \| Acipenseriformes \| Acipenseridae \| Acipenserinae
Synonyms	Scaphirhynchus kaufmanni, ... more
Common names	False Shovelnose Sturgeon, Lopatonos kaufmannův, 丝尾拟铲鲟, ... more

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Image of Pseudoscaphirhynchus kaufmanni (Amu Darya sturgeon)

Picture by Salnikov, V.B.

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Main reference

Berg, L.S. 1962. (Ref. 593)
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Size / Weight / Age

Max length : 75.0 cm TL male/unsexed; (Ref. 593); max. published weight: 2,000 g (Ref. 593)

Environment

Demersal; potamodromous (Ref. 51243); freshwater; brackish

Climate / Range

Temperate; 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). International trade restricted (CITES II, since 1.4.98; CMS Appendix II). Registered in the 1984 USSR Red Book; 1985 Turkmen SSR Red Data Book; 1996 IUCN Red List; an d1997 CITES Lists (Ref. 35930).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

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).


IUCN Red List Status (Ref. 57073)	Threat to humans
Endangered (EN) (A1acd)	Harmless

Human uses
Fisheries: commercial


More information
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Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

Low, minimum population doubling time 4.5 - 14 years (K=0.16; tm=6-7)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
High vulnerability (55 of 100)	Not marketed/unknown

Entered by Luna, Susan M.

Modified by Capuli, Estelita Emily

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Page last modified by : elaxamana, 15 July 2009

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