Acipenser ruthenus, Sterlet sturgeon : fisheries, aquaculture, aquarium

Acipenser ruthenus Linnaeus, 1758

Sterlet sturgeon
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Acipenser ruthenus
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Classification / Names Populärnamn | synonymer | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (strålfeniga fiskar) > Acipenseriformes (Sturgeons and paddlefishes) > Acipenseridae (Sturgeons) > Acipenserinae
Etymology: Acipenser: Latin, acipenser = sturgeon, 1853 (Ref. 45335).  More on author: Linnaeus.

Environment: milieu / climate zone / depth range / distribution range Ekologi

; sötvatten; brackvatten bottenlevande; flodvandrande (Ref. 51243); djupintervall 1 - ? m.   Temperate; 72°N - 40°N, 12°E - 103°E

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

Eurasia: rivers draining to Black, Azov and Caspian Seas; Siberia from Ob eastward to Yenisei drainages. Introduced throughout Europe, without formation of self-sustaining populations. Appendix III of the Bern Convention (protected fauna). International trade restricted (CITES II, since 1.4.98; CMS Appendix II for Danube population).

Length at first maturity / Size / Vikt / Age

Maturity: Lm 43.0, range 40 - 45 cm
Max length : 125 cm TL hane/ej könsbestämd; (Ref. 6866); common length : 40.0 cm TL hane/ej könsbestämd; (Ref. 556); publicerad maxvikt: 16.0 kg (Ref. 593); rapporterad maxålder: 20 år (Ref. 556)

Short description Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt): 13; Mjukstrålar i ryggfenan (totalt): 28; Taggstrålar i analfenan 9; Mjukstrålar i analfenan: 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). Can be diagnosed from congeners in Europe by having 56-71 lateral scutes, first dorsal scute not fused with head, barbels fimbriate, lower lip interrupted in middle and 11-27 gill rakers (Ref. 59043).

Biologi     Ordlista (t.ex. epibenthic)

A fluvial fish which inhabits rivers and their tributaries (Ref. 9696). Occurs in large rivers, usually in the current and in deep water. Moves to flooded areas to feed (Ref. 59043). 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 (Ref. 593). Spawns in habitats with strong-current on gravel, rarely on gravel-sand bottom or in flooded sites. Juveniles stay in riverine habitats during their first summer. Classified as endangered species. Anadromous populations are now extirpated; local populations are still surviving in most parts of range (Ref. 59043).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Scatters eggs on gravel.

Main reference Upload your references | referenser | Koordinator | Medarbetare

Birstein, V.J., 1993. Sturgeons and paddlefishes: threatened fishes in need of conservation. Conserv. Biol. 7:773-787. (Ref. 6866)

IUCN Red List Status (Ref. 123251)

  Sårbar, se IUCNs rödlista (VU) (A2cde); Date assessed: 24 October 2009

CITES (Ref. 118484)


Threat to humans

  Harmless





Human uses

Fiskeri: kommersiell; Vattenbruk: kommersiell; Akvarium: Offentliga akvarier
FAO(Vattenbruk: produktion; fiskeri: produktion, species profile; publication : search) | FishSource | Sea Around Us

Ytterligare information

Populärnamn
synonymer
Metabolik
Predatorer
Ekotoxikologi
Reproduktion
Könsmognad
Lek
Spawning aggregation
Fecundity
Ägg
Egg development
Age/Size
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Length-weight
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Length-frequencies
Morfometri
Morfologi
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Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00141 (0.00082 - 0.00244), b=3.27 (3.12 - 3.42), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trofisk nivå (Ref. 69278):  3.6   ±0.4 se; based on diet studies.
Generation time: 9.2 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Resiliens (Ref. 120179):  Låg, lägsta populationsfördubblingstid 4,5-14 år (tm=5-9; tmax=36; K=0.12; Fec=11,000).
Vulnerability (Ref. 59153):  High vulnerability (64 of 100) .
Price category (Ref. 80766):   Unknown.