Upload your photos and videos
Pictures | Stamps, Coins | Google image
Acipenser baerii
Picture by Hippocampus-Bildarchiv
Pictures | Stamps, Coins | Google image
Picture by Hippocampus-Bildarchiv
Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Acipenseriformes (Sturgeons and paddlefishes) > Acipenseridae (Sturgeons) > Acipenserinae
Etymology: Acipenser: Latin, acipenser = sturgeon, 1853 (Ref. 45335).
Etymology: Acipenser: Latin, acipenser = sturgeon, 1853 (Ref. 45335).
Environment / Climate / Range Ecology
Marine; freshwater; brackish; demersal; pH range: 7.0 - 7.5; dH range: ? - 20; anadromous (Ref. 51243); depth range 1 - ? m. Temperate; 10°C - 20°C (Ref. 2059); 74°N - 46°N, 64°E - 162°E
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 85 - 90 cm
Max length : 200 cm TL male/unsexed; (Ref. 40476); max. published weight: 210.0 kg (Ref. 59043); max. reported age: 60 years (Ref. 52333)
Max length : 200 cm TL male/unsexed; (Ref. 40476); max. published weight: 210.0 kg (Ref. 59043); max. reported age: 60 years (Ref. 52333)
Short description Morphology | Morphometrics
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).
Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions | Faunafri
Asia: Siberia, rivers Ob, Irtysh, Yenisei, Lena, Kolyma. Some non-migratory populations exist in the Irtysh River system. International trade restricted (CITES Appendix II, since 1.4.1998).
Inhabits deep parts of large rivers, with moderate to swift current (Ref. 59043). Adults live essentially in freshwater although some fish frequently occur in estuaries. Males are sexually mature between 9-15 years; females between 16-20 years (Ref. 11941). Spawns in main river channel over stone-gravel or gravel-sand bottom and with strong current (Ref. 59043).
Main reference
Upload your references | References | Coordinator | Collaborators
Baillie, J. and B. Groombridge (eds.), 1996. 1996 IUCN red list of threatened animals. IUCN, Gland, Switzerland. 378 p.
IUCN Red List Status (Ref. 90363)
Endangered (EN) (A2bcd+4bcd)
Threat to humans
Harmless
Human uses
Fisheries: highly commercial; aquaculture: commercial; aquarium: public aquariums
FAO(Aquaculture: production, species profile; fisheries: species profile; publication : search) | FisheriesWiki | Sea Around Us
More information
Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Food consumption
Ration
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Food consumption
Ration
Common names
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
Morphology
Larvae
Larval dynamics
Recruitment
Abundance
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
Morphology
Larvae
Larval dynamics
Recruitment
Abundance
References
Aquaculture
Aquaculture profile
Strains
Genetics
Allele frequencies
Heritability
Diseases
Processing
Mass conversion
Aquaculture
Aquaculture profile
Strains
Genetics
Allele frequencies
Heritability
Diseases
Processing
Mass conversion
Tools
Bio-Quiz | E-book | Field guide | Length-frequency wizard | Life-history tool | Point map | Classification Tree
| Catch-MSY |
Special reports
Download XML
Internet sources
Alien/Invasive Species database | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | National databases | Public aquariums | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record
Estimates of some properties based on empirical models
Phylogenetic diversity index (Ref. 82805): PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00243 (-0.11722 - 0.12209), b=3.30 (3.23 - 3.38), based on LWR estimates for species & genus-BS (Ref. 93245).
Trophic Level (Ref. 69278): 3.2 ±0.38 se; Based on food items.
Resilience (Ref. 69278): Very Low, minimum population doubling time more than 14 years (tm=11-17; tmax=60).
Vulnerability (Ref. 59153): Very high vulnerability (84 of 100) .