Pseudoscaphirhynchus hermanni (Kessler, 1877)
Dwarf sturgeon
photo by Salnikov, V.B.

Family:  Acipenseridae (Sturgeons), subfamily: Acipenserinae
Max. size:  27.5 cm TL (male/unsexed); max.weight: 50.5 g; max. reported age: 6 years
Environment:  demersal; freshwater; brackish, potamodromous
Distribution:  Former USSR and Asia: Endemic to the basin of Amu Dariya and Sir Dariya rivers (Ref. 35930). Considered endangered or extinct by authors (Ref. 6866). Registered in the International trade restricted (CITES II, since 1.4.98; CMS Appendix II); 1984 USSR Red Book; 1985 Turkmen SSR Red Data Book; 1996 IUCN Red List; and, 1997 CITES Lists (Ref. 35930).
Biology:  A rare and endangered species; smallest sturgeon; sensitive to chemicals in the water Ref. 35930).
IUCN Red List Status: Critically Endangered (CR); Date assessed: 24 October 2009 (A2c) Ref. (123251)
Threat to humans:  harmless
Country info:   

Entered by: Froese, Rainer - 03.02.94
Modified by: Capuli, Estelita Emily - 06.03.06
Checked by: Froese, Rainer - 28.04.94

Source and more info: For personal, classroom, and other internal use only. Not for publication.

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