Actinopterygii (ray-finned fishes) > Acipenseriformes
(Sturgeons and paddlefishes) > Acipenseridae
(Sturgeons) > Acipenserinae
Etymology: Acipenser: Latin, acipenser = sturgeon, 1853 (Ref. 45335). More on author: Borodin.
Similar to A. gueldenstaedti.
Environment / Climate / Range
Marine; freshwater; brackish; demersal; anadromous (Ref. 58888). Temperate; 52°N - 36°N, 38°E - 54°E
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 242 cm TL male/unsexed; (Ref. 47532); 176.1 cm (female); max. published weight: 70.0 kg (Ref. 58888)
Eurasia: Caspian basin, most abundant in the southern part (Ref. 59043). Also distributed along the eastern Black Sea (Ref. 58888). International trade restricted (CITES II, since 1.4.98; CMS Appendix II).
Anadromous. Inhabits coastal and estuarine zones at the sea. Breeds in strong-current habitats in main course of large and deep rivers on stone or gavel bottom. Juvenile stay in riverine habitats during their first summer (Ref. 59043). Adults migrating to breed take the path of short, fast flowing mountain rivers (Ref. 33773). Maximum reported length for female is 176.1 cm TL(Ref. 58888).
Kottelat, M. and J. Freyhof, 2007. Handbook of European freshwater fishes. Publications Kottelat, Cornol and Freyhof, Berlin. 646 pp. (Ref. 59043)
IUCN Red List Status (Ref. 96402)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00372 (0.00195 - 0.00708), b=3.14 (2.98 - 3.30), based on LWR estimates for this species & Genus-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.7 ±0.59 se; Based on food items.
Resilience (Ref. 69278
): Very Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Very high vulnerability (87 of 100) .