Classification / Names
Common names from other countries
Main reference
Size / Weight / Age
Max length : 200 cm TL male/unsexed; (Ref. 40476); max. published weight: 210.0 kg (Ref. 59043); max. reported age: 63 years (Ref. 57765)
Length at first maturity
Lm 86.9, range 65 - 167 cm
Environment
Freshwater; brackish; demersal; pH range: 7.0 - 7.5; dH range: ? - 20; potamodromous (Ref. 57765); depth range 0 - 200 m (Ref. 57765), usually 1 - 8 m (Ref. 57765)
Climate / Range
Temperate; 1°C - 19°C (Ref. 57765), preferred ?; 74°N - 46°N, 64°E - 162°E
Distribution
Asia: Siberia, rivers Ob, Irtysh, Yenisei, Lena, Kolyma, Khatanga, Pyasina, Anabar, Olenyok, Yana and Lake Baikal (Ref. 57765). Non-migratory populations exist in all river systems (Ref. 57765). International trade restricted (CITES Appendix II, since 1.4.1998).
Countries | FAO areas | Ecosystems | Occurrences | Introductions
Short description
Extended snouts; four barbels in front of the mouth (Ref. 4639). The back is light grey to dark brown colored. The belly color varies from white to clear yellow. Five row s of scutes: 10-19D, 32-59L, 7-16V. Small star-like scutes between the main ones. Clearly slit inferior lip (Ref. 40476).
IUCN Red List Status (Ref. 115185)
Threat to humans
Harmless
Human uses
Fisheries: highly commercial; aquaculture: commercial; aquarium: public aquariums
Tools
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Internet sources
Estimates of some properties based on models
Phylogenetic diversity index
PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)
Trophic Level
3.3 ±0.2 se; Based on diet studies.
Resilience
Very Low, minimum population doubling time more than 14 years (tm=7-34; tmax=63; Fec=16,500-420,000; K=0.03)
Vulnerability
Very high vulnerability (85 of 100)
Price category