Siberian sturgeon (Acipenser baerii baerii) fish species and information / pictures of Siberian sturgeon - Acipenser baerii baerii

Siberian sturgeon (Acipenser baerii baerii) fish species information

Scientific Name
Acipenser baerii baerii

Common Name
Siberian sturgeon

Biology
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).

Classification

Classified By

Brandt, 1869

Class

Ray-finned fishes (Actinopterygii)

Order

Sturgeons and Paddlefishes (Acipenseriformes)

Family

Sturgeons (Acipenseridae)

Distribution

Region

Asia

Distribution

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).

Range

74°N - 46°N, 64°E - 162°E

Environment

Climate

Temperate

Water Temperature From

10 °C

Water Temperature To

20 °C

Depth From - meters

1 m

Depth To - meters

Unknown m

Zone

demersal

Environment

Marine; freshwater; brackish; ; pH range: 7.0 - 7.5; dH range: ? - 20 demersal; anadromous (Ref. 51243); depth range 1 - ? m

Trophic Level

3.22000002861023 s.e. 0.38 Based on food items.

Occurs in Marine / Salt water

True

Occurs in Brackish water

True

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

True

Physical Size and Genetics

Maximum Length

200 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

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

Vulnerability

Very high vulnerability (84 of 100)

Resilience

Very Low, minimum population doubling time more than 14 years (tm=11-17; tmax=60)

Threat To Humans

Harmless

IUCN Red List Status