Russian Federation country information

Common names: Chernamorsko-azovskyi osetr, Chernomorsko-azovskyi osetr, Djirim
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Distributed in the Sea of Azov, the Black Sea and Caspian basins (Ref. 26334). This has been translocated to areas within the country for aquaculture and stocking in open waters however, it failed to establish populations in areas where it has been transplanted to (Ref. 45022). Also Ref. 9953. EurRus
National Checklist:
Country Information: httpss://www.cia.gov/library/publications/resources/the-world-factbook/geos/rs.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Reshetnikov, Y.S., N.G. Bogutskaya, E.D. Vasil'eva, E.A. Dorofeeva, A.M. Naseka, O.A. Popova, K.A. Savvaitova, V.G. Sideleva and L.I. Sokolov, 1997
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

Common names from other countries

حفش الدانوب, 俄罗斯鲟, Осетр русский, ... more

Main reference

Sokolov, L.I. and L.S. Berdicheskii. 1989. (Ref. 9953)
References | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 236 cm TL male/unsexed; (Ref. 59043); common length : 145 cm TL male/unsexed; (Ref. 3561); max. published weight: 115.0 kg (Ref. 6866); max. reported age: 46 years (Ref. 3561)

Length at first maturity
L_m ? range ? - ? cm

Environment

Marine; freshwater; brackish; demersal; anadromous (Ref. 51243); depth range 2 - 100 m, usually 10 - 25 m

Climate / Range

Temperate; 10°C - 20°C (Ref. 2059), preferred 11°C (Ref. 107945); 61°N - 35°N, 26°E - 54°E

Distribution

Eurasia: Black Sea, Sea of Azov and Caspian Sea, entering all main rivers that empty into them (Don, Kuban, Danube, Dnieper (rare), Dniester) (Ref. 9953). Introduced throughout Europe. Considered critically endangered (Ref. 59043). International trade restricted (CITES II, since 1.4.98; CMS Appendix II).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 0; Dorsal soft rays (total): 27-48; Anal soft rays: 16 - 35. Under the name A. g. colchicus. Lower lip not continuous, interrupted at center. Five rows of scutes: dorsal 7-19, lateral 24-44 on each side, ventral 6-13 on each side, with lines of smaller stellate bony plates between the dorsal and ventral rows. Color of back olivaceous grey, flanks lighter, and belly white.

Anadromous and freshwater populations exist. At the sea, it occurs in shallow coastal and estuarine zones. In freshwaters, it inhabits deep parts of large rivers with moderate to swift current (Ref. 59043). Found mainly near the shore over sand and mud. Usually solitary, but swarms when hibernating or during spawning migrations. Occasionally forms schools (Ref. 3241). Feeds on benthic molluscs, crustaceans and small fishes. Spawns on stone or gravel bottom in large and deep rivers with strong current, 1-1.5 m/s (Ref. 59043). Mainly propagated through artificial reproduction.

IUCN Red List Status (Ref. 115185)

Critically Endangered (CR) (A2bcde)

Threat to humans

Harmless

Human uses

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

More information

Countries
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

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
Sounds
Ciguatera
Speed
Swim. type
Gill area
Otoliths
Brains
Vision

Tools

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

Download XML

Summary page | Point data | Common names | Photos

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 ±0.1 se; Based on diet studies.

Resilience (Ref. 69278)
Very Low, minimum population doubling time more than 14 years (tm=11; Fec = 26,000)

Vulnerability (Ref. 59153)
Very high vulnerability (87 of 100)

Price category (Ref. 80766)
Unknown

Acipenser gueldenstaedtii Brandt & Ratzeburg, 1833