Acipenser nudiventris Lovetsky, 1828

Fringebarbel sturgeon
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Image of Acipenser nudiventris (Fringebarbel sturgeon)
Acipenser nudiventris
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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

; समुद्री; स्वच्छ जल, अलवण जल; खारा ड़िमरसल; ऐनाढरोमस (Ref. 51243); गहराई सीमा 30 - 60 m (Ref. 3397).   Temperate; 10°C - 20°C (Ref. 2059); 57°N - 36°N, 14°E - 53°E

वितरण देश | ऐफ ऐ ओ क्षेत्र | Ecosystems | संयोग | Point map | भूमिका | Faunafri

Europe: Black, Azov, Caspian and Aral Sea, ascending some rivers (Danube up to Bratislava, Volga up to Kazan, Ural up to Chkalov), unknown or very rare in others. On the verge of extinction in its natural range.

Extirpated in Aral basin; nearly extirpated in Black Sea basin; only occasional records from Danube and lower Volga; only a very small population remaining in Rivers Ural (Russia, Kazakhstan) and Rioni (Georgia); no natural spawning population in Iran; established in Lake Balkhash where it forms a large population (Ref. 59043). Artificially propagated (Ref. 6866).

Length at first maturity / आकार / वज़न / Age

Maturity: Lm ?  range ? - ? cm
Max length : 211 cm TL पुल्लिंग / अलिंग; (Ref. 98365); common length : 132 cm TL पुल्लिंग / अलिंग; (Ref. 3397); अधिकतम प्रकाशित वज़न: 80.0 kg (Ref. 52332)

Short description आकृति विज्ञान | मौरफोमैटरिक्स

पृष्ठीय रीढ़ (सम्पूर्ण): 0; पृष्ठीय सौफट रेज़ (सम्पूर्ण): 45-57; ऐनल सौफट रेज़: 23 - 37. Snout moderately long and pointed at tip. Lower lip continuous, not interrupted at centre. Barbels halfway between tip of snout and mouth, reaching the latter. Five rows of scutes, dorsal 11-17, lateral 49-70, but usually 55-56 on each side, ventral 10-16, with no smaller plates between dorsal and ventral rows. Color of back grey, flanks lighter, belly white.

जीवविज्ञान     शब्द संग्रह (उदाहरणार्थ epibenthic)

Adults occur in the sea close to shores and estuaries and in deep stretches of large rivers over muddy substrate. Are usually solitary. Juveniles live in shallow riverine habitats (Ref. 59043). Feed on mollusks, amphipods and chironomid larvae. Spawning takes place in strong-current habitats in main course of large and deep rivers on stone or gravel bottom (Ref. 59043) from end of April to June (end of May in Rioni River, Black Sea) (Ref. 3193).

Life cycle and mating behavior परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | Fecundity | लार्वा

Most juveniles move to sea in their first summer and remain there until they reach maturity. Others remain for a longer period. In autumn, individuals migrate to the rivers and remain there until the following spring to spawn (Ref. 59043). Females reproduce every 2-3 and males every 1-2 years (Ref. 59043).

Main reference Upload your references | संदर्भ | संयोजक | सहयोगीयो

Bauchot, M.-L., 1987. Poissons osseux. p. 891-1421. In W. Fischer, M.L. Bauchot and M. Schneider (eds.) Fiches FAO d'identification pour les besoins de la pêche. (rev. 1). Méditerranée et mer Noire. Zone de pêche 37. Vol. II. Commission des Communautés Européennes and FAO, Rome. (Ref. 3397)

IUCN Red List Status (Ref. 120744)

  Extinct (EX) ; Date assessed: 01 August 1996

CITES (Ref. 115941)


Threat to humans

  Harmless





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मात्स्यिकी: व्यापारिक; जलीयकृषि: व्यापारिक
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इंटरनेट स्रोत

Estimates of some properties based on models

Preferred temperature (Ref. 115969): 7.7 - 11.1, mean 10.4 (based on 9 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00575 (0.00350 - 0.00945), b=3.19 (3.05 - 3.33), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.3   ±0.45 se; Based on food items.
लौटाव (Ref. 69278):  निम्न, न्यूनतम जनसंख्या दुगनी होने का समय 4.5 - 14 वर्ष। (K=0.04-0.12; tmax=30; Fec=165,000).
Vulnerability (Ref. 59153):  Very high vulnerability (85 of 100) .
Price category (Ref. 80766):   Unknown.