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Acipenser baerii  Brandt, 1869

Siberian sturgeon
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Acipenser baerii
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China country information

Common names: ?????, ?????
Occurrence: native
Salinity: freshwater
Abundance: scarce (very unlikely) | Ref: Chen, X., 2007
Importance: | Ref:
Aquaculture: commercial | Ref: Chen, X., 2007
Regulations: | Ref:
Uses: no uses
Comments: Occurs in Erqishi river (Ref. 41093); Heilongjiang Prov. (Ref. 93286). Also Ref. 31517.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ch.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Walker, K.F. and H.Z. Yang, 1999
National Database:

Classification / Names

Actinopterygii (ray-finned fishes) > Acipenseriformes (Sturgeons and paddlefishes) > Acipenseridae (Sturgeons) > Acipenserinae
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL

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); 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).
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).

Biology     Glossary (e.g. epibenthic)

Found in deep and shallow parts of rivers, with moderate to swift current usually at depths of 1 to 8 m (Ref. 57765). Adults live essentially in freshwater although some fish frequently occur in estuaries. Males are sexually mature between 9 and 29 years; females between 9 and 34 years (Ref. 57765). Spawn in main river channel over stone-gravel or gravel-sand bottom and with strong current (Ref. 59043).

IUCN Red List Status (Ref. 115185)

  Endangered (EN) (A2bcd+4bcd)

Threat to humans

  Harmless



Human uses

Fisheries: highly commercial; aquaculture: commercial; aquarium: public aquariums

More information

Common names
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
References
Aquaculture
Aquaculture profile
Strains
Genetics
Allele frequencies
Heritability
Diseases
Processing
Mass conversion
Collaborators
Pictures
Stamps, Coins Misc.
Sounds
Ciguatera
Speed
Swim. type
Gill area
Otoliths
Brains
Vision

Tools

Special reports

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Internet sources

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805)
PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Trophic Level (Ref. 69278)
3.3   ±0.2 se; Based on diet studies.

Resilience (Ref. 69278)
Very Low, minimum population doubling time more than 14 years (tm=7-34; tmax=63; Fec=16,500-420,000; K=0.03)

Vulnerability (Ref. 59153)
Very high vulnerability (85 of 100)
Price category (Ref. 80766)
Unknown