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Acipenser ruthenus  Linnaeus, 1758

Sterlet sturgeon
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Image of Acipenser ruthenus (Sterlet sturgeon)
Acipenser ruthenus
Picture by Meyer, T.

Classification / Names Noms communs | Synonymes | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinoptérygiens (poissons à nageoires rayonnées) > Acipenseriformes (Sturgeons and paddlefishes) > Acipenseridae (Sturgeons) > Acipenserinae
Etymology: Acipenser: Latin, acipenser = sturgeon, 1853 (Ref. 45335).   More on author: Linnaeus.

Environnement / Climat / Gamme Écologie

; eau douce; saumâtre démersal; potamodrome (Ref. 51243); profondeur 1 - ? m.   Temperate; 72°N - 40°N, 12°E - 103°E

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | 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 / Taille / Poids / Âge

Maturity: Lm 43.0, range 40 - 45 cm
Max length : 125 cm TL mâle / non sexé; (Ref. 6866); common length : 40.0 cm TL mâle / non sexé; (Ref. 556); poids max. publié: 16.0 kg (Ref. 593); âge max. reporté: 20 années (Ref. 556)

Description synthétique Morphologie | Morphométrie

Épines dorsales (Total): 13; Rayons mous dorsaux (Total): 28; Épines anales 9; Rayons mous anaux: 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).

Biologie     Glossaire (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 Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Scatters eggs on gravel.

Référence principale Upload your references | Références | Coordinateur | Collaborateurs

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

Statut dans la liste rouge de l'IUCN (Ref. 115185)

CITES (Ref. 115941)

Menace pour l'homme

  Harmless




Utilisations par l'homme

Pêcheries: commercial; Aquaculture: commercial; Aquarium: Aquariums publics
FAO(Aquaculture: production; pêcheries: production, Résumé espèce; publication : search) | FishSource | Sea Around Us

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Noms communs
Synonymes
Métabolisme
Prédateurs
Écotoxicologie
Reproduction
Maturité
Frai
Fécondité
Œufs
Développement de l'œuf
Taille/Âge
Croissance
Longueur-poids
Longueur-longueur
Fréquences de longueurs
Morphométrie
Morphologie
Larves
Dynamique des populations larvaires
Recrutement
Abondance
Références
Aquaculture
Profil d'aquaculture
Souches
Génétique
Fréquences alléliques
Héritabilité
Pathologies
Traitement
Mass conversion
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Estimates of some properties 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 (0.00081 - 0.00246), b=3.27 (3.12 - 3.42), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Niveau trophique (Ref. 69278):  3.6   ±0.4 se; Based on diet studies.
Résilience (Ref. 69278):  Faible, temps minimum de doublement de population : 4,5 à 14 années (tm=5-9; tmax=25; K=0.12; Fec=11,000).
Prior r = 0.39, 2 SD range = 0.2 - 0.76, log(r) = -0.94, SD log(r) = 0.33, Based on: 1 K, 19 tgen, 1 tmax, 2 Fec records
Vulnérabilité (Ref. 59153):  High vulnerability (64 of 100) .
Catégorie de prix (Ref. 80766):   Unknown.