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. Registered in the 1984 USSR Red Book; 1985 Turkmen SSR Red Data Book; 1996 IUCN Red List (Ref. 35930).
Diagnosis:   
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: 14 September 2019 (A2c) Ref. (130435)
Threat to humans:  harmless


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