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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.

Common names from other countries

klasifikasi / Names Nama-nama umum | Sinonim (persamaan) | Catalog of Fishes(Marga, Jenis) | 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 Ekologi

; air tawar; payau dasar (demersal); pH range: 7.0 - 7.5; dH range: ? - 20; potamodromous (Ref. 57765); kisaran kedalaman 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

Penyebaran Negara-negara | Daerah-daerah FAO | Ecosystems | Kemunculan | Point map | Introduksi | Faunafri

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).

Length at first maturity / Size / Weight / umur

Maturity: Lm 95.5, range 65 - 167 cm
Max length : 200 cm TL jantan/; (Ref. 40476); Berat maksimum terpublikasi: 210.0 kg (Ref. 59043); Umur maksimum dilaporkan: 63 Tahun (Ref. 57765)

deskripsi pendek Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik

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).

Biologi     Daftar kata (contoh 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).

Life cycle and mating behavior Maturities | Reproduksi, perkembang biakan | Spawnings | Egg(s) | Fecundities | Larva

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.

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

Status IUCN Red List (Ref. 130435)

  sangat terancam (CR) (A2bd); Date assessed: 14 September 2019

CITES (Ref. 128078)


ancaman kepada manusia

  Harmless




penggunaan manusia

Perikanan: bernilai komersial tinggi; Budidaya air: komersial; Akuarium: Akuarium publik
FAO(Aquaculture systems: production, profail spesis; Perikanan: profail spesis; publication : search) | FishSource | Sea Around Us

informasi lanjut

Trophic ecology
Bahan makanan
Diet compositions
Food consumptions
Food rations
Pemangsa
Ecology
Ekologi
Home ranges
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
ukuran frekuensi
Mass conversions
Recruitments
Abundances
Life cycle
Reproduksi, perkembang biakan
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larva
Dinamika larva
Anatomy
Gill areas
Otak
Otoliths
Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
Suara-suara ikan
Diseases / Parasites
Toxicities (LC50s)
Genetics
Genetika
Electrophoreses
Heritabilities
Human related
Aquaculture systems
profil budidaya air
Strain
Ciguatera cases
Stamps, coins, misc.
Outreach
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References
Acuan

Alat, peralatan

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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00269 (0.00156 - 0.00465), b=3.26 (3.12 - 3.40), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.3   ±0.2 se; based on diet studies.
Daya lenting (Ref. 120179):  sangat rendah, Waktu penggandaan populasi minimum lebih dari 14 tahun (tm=7-34; tmax=63; Fec=16,500-420,000; K=0.03).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (87 of 100).
kategori harga (Ref. 80766):   Unknown.