Acipenser baerii, Siberian sturgeon : fisheries, aquaculture, aquarium

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Acipenser baerii Brandt, 1869

Siberian sturgeon
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Acipenser baerii
Picture by Hartl, A.

Classification / Names आम नाम | उपशब्द | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

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

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

; स्वच्छ जल, अलवण जल; खारा ड़िमरसल; pH range: 7.0 - 7.5; dH range: ? - 20; पोटामोड़िरोमस (Ref. 57765); गहराई सीमा 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

वितरण देश | ऐफ ऐ ओ क्षेत्र | Ecosystems | संयोग | Point map | भूमिका | 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 / आकार / वज़न / Age

Maturity: Lm 86.9, range 65 - 167 cm
Max length : 200 cm TL पुल्लिंग / अलिंग; (Ref. 40476); अधिकतम प्रकाशित वज़न: 210.0 kg (Ref. 59043); अधिकतम सूचित उम्र: 63 वर्षो (Ref. 57765)

Short description आकृति विज्ञान | मौरफोमैटरिक्स

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).

जीवविज्ञान     शब्द संग्रह (उदाहरणार्थ 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 परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | Fecundity | लार्वा

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.

Main reference Upload your references | संदर्भ | संयोजक | सहयोगीयो

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

IUCN Red List Status (Ref. 123251)

  Endangered (EN) (A2bcd+4bcd); Date assessed: 24 October 2009

CITES (Ref. 118484)


Threat to humans

  Harmless





Human uses

मात्स्यिकी: उच्च वाणिज्य; जलीयकृषि: व्यापारिक; जलजीवालय: सार्वजनिक लजीवालय
FAO(जलीयकृषि: production, species profile; मात्स्यिकी: species profile; publication : search) | FishSource | Sea Around Us

अधिक जानकारी

आम नाम
उपशब्द
चपायचय
परभक्षी
ईकोटोकसीकोलौजी
पुनरुत्पत्ति
परिपक्व अवधि
मछलीऔ का अंडे देना
Spawning aggregation
Fecundity
अंडे
Egg development
Age/Size
बाढ़
Length-weight
Length-length
Length-frequencies
मौरफोमैटरिक्स
आकृति विज्ञान
लार्वा
लारवल गतिकी
भर्ती
बहुतायत
संदर्भ
जलीयकृषि
जलीयकृषि रूपरेखा
खींच
आनुवंशिकी
ऐल्लि आवृतियाँ
हैरेटिबिलटी
बीमारी
प्रक्रमण
Mass conversion
सहयोगीयो
तस्वीरे
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रफ्तार
तैरने के प्रकार
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Otoliths
दिमाग
दृष्टि

साधन

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इंटरनेट स्रोत

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=0.00263 (0.00154 - 0.00450), b=3.27 (3.13 - 3.41), 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.
लौटाव (Ref. 120179):  बहुत नीचे, न्यूनतम जनसंख्या दुगनी समय अवलागत 14 महीने। (tm=7-34; tmax=63; Fec=16,500-420,000; K=0.03).
Vulnerability (Ref. 59153):  Very high vulnerability (85 of 100) .
Price category (Ref. 80766):   Unknown.