Acipenser ruthenus Linnaeus, 1758

Sterlet

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Actinopterygii \| Acipenseriformes \| Acipenseridae \| Acipenserinae
Synonyms	Acipenser gmelini, Acipenser kamensis, Acipenser kankreni, ... more
Common names	Sterlet sturgeon, Esterlete, Esturgeon de Sibérie, ... more

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Main reference

Birstein, V.J. 1993. (Ref. 6866)
Other references | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 125 cm TL male/unsexed; (Ref. 6866); common length : 40.0 cm TL male/unsexed; (Ref. 556); max. published weight: 16.0 kg (Ref. 593); max. reported age: 20 years (Ref. 556)

Environment

Demersal; potamodromous (Ref. 51243); freshwater; brackish; depth range 1 - ? m

Climate / Range

Temperate; 72°N - 40°N, 12°E - 103°E

Eurasia: Basins of the Black and Caspian seas; Arctic drainages to White and Kara seas and the Sea of Azov. Endangered (Ref. 6866). Appendix III of the Bern Convention (protected fauna). International trade restricted (CITES II, since 1.4.98; CMS Appendix II for Danube population). Found in northern and western Dvina and their tributaries (Ref. 42845).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 13; Dorsal soft rays (total): 28; Anal spines: 9; Anal soft rays: 14 - 18. Back and flanks are beige. Five rows of scutes : 12-17D, 57-71L, 10-19V. Ventrals and laterals are very light-colored, nearly white. Narrow and pointed snout with four long and fringed barbels. Inferior lip clearly slit (Ref. 40476)

A fluvial fish which inhabits rivers and their tributaries (Ref. 9696). Chiefly potamodromous (Ref. 58897). Like other sturgeons, it aggregates in bottom holes in winter and exhibits little activity. In spring, when ice breaks, it rises from the bottom holes and moves upstream for spawning. For spawning, the fish choose the main channel of the river, where the current is fast and the bottom is covered with gravel (Ref. 593).


IUCN Red List Status (Ref. 57073)	Threat to humans
Vulnerable (VU) (A1c+2d)	Harmless

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


More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

Tools
Biogeographic modelling \| Bio-Quiz \| E-book \| Field guide \| Length-frequency wizard \| Life-history tool \| Point map

Special reports
Check for Aquarium maintenance \| Check for Species Fact Sheets \| Check for Aquaculture Fact Sheets

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Summary page \| Point data \| Common names \| Photos

Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

Low, minimum population doubling time 4.5 - 14 years (tm=5-9; tmax=25; K=0.12; Fec=11,000)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
High vulnerability (64 of 100)	Not marketed/unknown

Entered by Luna, Susan M.

Modified by Luna, Susan M.

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Page last modified by : elaxamana, 15 July 2009

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