Acipenser baerii, Siberian sturgeon : fisheries, aquaculture, aquarium

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Acipenser baerii Brandt, 1869

Siberian sturgeon
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Image of Acipenser baerii (Siberian sturgeon)
Acipenser baerii
Picture by Hartl, A.

Classificatie / Names Lokale namen | Synoniemen | Catalog of Fishes(Genus, Soort(en)) | ITIS | CoL | WoRMS | Cloffa

> Acipenseriformes (Sturgeons and paddlefishes) > Acipenseridae (Sturgeons) > Acipenserinae
Etymology: Acipenser: Latin, acipenser = sturgeon, 1853 (Ref. 45335).

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

; zoet water; brak water demersaal; pH range: 7.0 - 7.5; dH range: ? - 20; potamodroom (Ref. 57765); diepte 0 - 200 m (Ref. 57765), usually 1 - 8 m (Ref. 57765). Temperate; 1°C - 19°C (Ref. 57765); 74°N - 46°N, 64°E - 162°E

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Asia: Siberia, rivers Ob, Irtysh, Yenisei, Lena, Kolyma, Khatanga, Pyasina, Anabar, Olenyok, Yana and Lake Baikal (Ref. 57765). Non-migratory populations exist in all river systems (Ref. 57765).

Lengte bij maturiteit / Grootte / Gewicht / Leeftijd

Maturity: Lm 95.5, range 65 - 167 cm
Max length : 200 cm TL mannelijk / geslacht onbekend; (Ref. 40476); max. gepubliceerd gewicht: 210.0 kg (Ref. 59043); max. gerapporteerde leeftijd: 63 Jaren (Ref. 57765)

Korte beschrijving Morfologie | Morfometrie

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).

Biologie     Verklarende woordenlijst (bv. epibenthic)

Found in deep and shallow parts of rivers, with moderate to swift current usually at depths of 1 to 8 m (Ref. 57765). Adults live essentially in freshwater although some fish frequently occur in estuaries. Males are sexually mature between 9 and 29 years; females between 9 and 34 years (Ref. 57765). Spawn in main river channel over stone-gravel or gravel-sand bottom and with strong current (Ref. 59043).

Levenscyclus en paargedrag Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven

Potamodromous species (Ref. 57765). In a natural environment, males reach sexual maturity at 9-1 5 years of age and females at 16-20 years (in water recirculation systems, sexual maturity can first occur at 5 years). Spawning happens in the summer and generally every two years. Membranes on eggs become increasingly more sticky after fertilization and this allows them to stick to the substratum. This can become a problem in nurseries, but it is solved by washing the eggs in clay or diatomaceous earth suspensions. Caviar (not fecundated ovocites ) can be over 1 0% of the corporal weight of a mature female. Incubation lasts about 1 6 days (at 10-1 5°). Larval development lasts about 20 days (at 18°). Egg size 3.0-3.6 mm, larval length at hatching 10-12 mm.

Hoofdreferentie Upload your references | Referenties | Coördinator | Medewerkers

Baillie, J. and B. Groombridge (eds.), 1996. 1996 IUCN red list of threatened animals. IUCN, Gland, Switzerland. 378 p. (Ref. 12255)

Status op de Rode Lijst van het IUCN (Ref. 126983)

  Ernstig bedreigd (CR) (A2bd); Date assessed: 14 September 2019

CITES


Gevaar voor de mens

  Harmless





Gebruik door de mens

Visserij: van groot commercieel belang; Aquacultuur: commercieel; Aquarium: Publieke aquaria
FAO - Aquacultuur: productie, soortsprofiel; visserij: soortsprofiel; Publication: search | FishSource | Sea Around Us

Meer informatie

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Ecotoxicologie
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Maturiteit
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Estimates based on models

Fylogenetische diversiteitsindex (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00257 (0.00150 - 0.00442), b=3.27 (3.13 - 3.41), in cm total length, based on LWR estimates for species & Genus-BS (Ref. 93245).
Trofisch niveau (Ref. 69278):  3.3   ±0.2 se; based on diet studies.
Weerstandsvermogen (Ref. 120179):  Zeer laag, minimale populatieverdubbelingstijd meer dan 14 jaar (tm=7-34; tmax=63; Fec=16,500-420,000; K=0.03).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (87 of 100).
Prijsklasse (Ref. 80766):   Unknown.
Nutrients (Ref. 124155):  Calcium = 15.6 [9.1, 26.8] mg/100g ; Iron = 0.253 [0.156, 0.402] mg/100g ; Protein = 17.3 [14.8, 20.1] % ; Omega3 = 0.381 [0.218, 0.653] g/100g ; Selenium = 25.6 [13.5, 47.2] μg/100g ; VitaminA = 6.04 [2.17, 16.19] μg/100g ; Zinc = 0.514 [0.371, 0.719] mg/100g (wet weight);