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Acipenser baerii baerii in France
Siberian sturgeon

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Acipenser baerii baerii   Brandt, 1869
Family:	Acipenseridae (Sturgeons) , subfamily: Acipenserinae			picture (Acbae_u1.jpg) by Hippocampus-Bildarchiv
Order:	Acipenseriformes  (sturgeons and paddlefishes)
Class:	Actinopterygii (ray-finned fishes)
FishBase name:	Siberian sturgeon
Max. size:	200 cm TL (male/unsexed; Ref. 40476); max. published weight: 100.0 kg (Ref. 40476); max. reported age: 60 years
Environment:	demersal; anadromous; pH range: 7 - 7.5; dH range: 20 ; depth range - 1 m
Climate:	temperate; 10 - 20°C; 74°N - 46°N
Global Importance:	fisheries: highly commercial; aquaculture: commercial; aquarium: public aquariums
Resilience:	Very low, minimum population doubling time more than 14 years (tm=11-17; tmax=60)
Distribution:	Former USSR and Asia: Siberia, rivers Ob, Irtysh, Yenisei, Lena, Kolyma. Some non-migratory populations exist in the Irtysh River system. Insufficiently known and artificially propagated. Endangered in the Indigirka river. International trade restricted (CITES Appendix II, since 1.4.1998).
Diagnosis:	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:	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). Reported to reach a length of 153 TL (approximately 30,000 g) in the freshwater Shakujii Hatchery (Ref. 9978)
Threatened:	Endangered, see IUCN Red List  (A2d) , (Ref. 36508)
Dangerous:	harmless
Coordinator:
Main Ref:	Baillie, J. and B. Groombridge (eds.). 1996. (Ref. 12255)
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France country information
Common names:	Esturgeon sibérien, Esturgeon de Sibérie		Ref:  FAO-FIES, 2009
Status:	introduced		Ref:
Salinity:	freshwater
Aquaculture:	commercial		Ref:  Sciolino, E., 2003
Regulations:	no regulations		Ref:
Uses:	live export:
Comments:	Introduced and cultured in Bordeaux for caviar (Ref. 46958). Accidentally escaped in the Gironde basin during a storm on 27 and 28 December 1999 (Ref. 51439).
Country Information:	www.cia.gov/cia/publications/factbook/geos/fr.html
Occurrences:	Occurrences    Point map
Main Ref:	Keith, P. and J. Allardi (coords.), 2001
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More information:	Countries FAO areas Occurrences Introductions Ecosystem Ecology Diet Food items Food consumption Ration Predators Ciguatera Fish loss Common names Synonyms Pictures Sounds Reproduction Maturity Spawning Eggs Egg dev. Larvae Larval dynamics References Growth L-W relationship L-L relationship Length frequencies Recruitment Max. age & size Metabolism Morphology Morphometrics Gill area Brains Vision Collaborators Genetics Allele frequencies Heritability Strains Aquaculture Aquaculture profile Diseases Ecotoxicology Processing Speed Swim. type Stamps
	Note: No data are available if label is black .
Tools:	Biogeographic modelling | Bio-Quiz | E-book | Field guide | Length-frequency Wizard | Life-history tool | Point map |
Internet sources:	Alien/Invasive species database | BiOSC Point Data | CISTI | FAO aquaculture | Google | GOBASE | FIGIS | GenBank ( genome, nucleotide ) | National databases | PubMed | Scirus | Public aquariums | Tree of Life | Zoological Record Other web sites |
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	Checked:  Busson, Frédéric	Modified:  Boden, Gert	Entered:  Casal, Christine Marie V.

	Ref.:				Glossary
		(e.g. 9948)				(e.g. cephalopods)
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Page created by: Eli, 20.10.03, last modified by Eli, 26.06.07