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Schilbe uranoscopus Rüppell, 1832

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Schilbe uranoscopus
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分類 / Names 共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa

> Siluriformes (Catfishes) > Schilbeidae (Schilbid catfishes)
Etymology: uranoscopus: From the Greek "ouranos" (sky) and "skopos" (literally watchman, "skopeoo" means to look at), referring to the supero-lateral position of the eyes (Ref. 43912).
More on author: Rüppell.

Environment: milieu / climate zone / depth range / distribution range 生態学

; 新鮮な水 底生の; potamodromous (Ref. 51243). Tropical

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Africa: Niger (Lake Kainji and further downstream), Cross and Chad basins (Ref. 57127, 81643). Also in the Nile and Lake Turkana system (Ref. 43912, 81643).

Length at first maturity / サイズ / 重さ / 年齢

Maturity: Lm 21.0, range 12 - ? cm
Max length : 36.0 cm SL オス/雌雄の選別がない; (Ref. 57127)

簡単な記述 検索表 | 形態学 | 形態計測学

背面の脊椎 (合計) : 1; 臀鰭: 59 - 73; 脊つい: 50 - 57. Diagnosis: 13-16 gill rakers on lower limb of first gill arch; 57-75 branched anal-fin rays; eyes positioned dorso-laterally; adipose fin always absent (Ref. 43912, 57127, 81643). Often with a post-occipital hump, a character also sometimes found in Schilbe intermedius whose head profile is extremely variable (Ref. 57127, 81643). Posterior nostrils closer to each other than are anterior ones; nasal barbel at maximum reaching to midway between eye and opercle, but generally shorter; inner side of pectoral spine feebly serrated (Ref. 43912).

生物学     用語集 (例 epibenthic)

Adapted to riverine and lacustrine conditions; appears to live mainly in the open waters; predatory, carnivorous but not strictly piscivorous; young essentially entomophagous (Ref. 43912). Oviparous, eggs are unguarded (Ref. 205). Especially in the Chad basin of some economic value to the fishermen (Ref. 43912). Maximum reported total length 45 cm (Nile basin)(Ref. 43912).

Life cycle and mating behavior 成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生

Distinct pairing (Ref. 205).

主な参考文献 Upload your references | 参考文献 | コーディネーター | 協力者

De Vos, L., 2003. Schilbeidae. p. 97-116 In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux douce et saumâtres de l'Afrique de l'Ouest, Tome 2. Coll. Faune et Flore tropicales 40. Musée Royal de l'Afrique Centrale, Tervuren, Belgique, Museum National d'Histoire Naturalle, Paris, France and Institut de Recherche pour le Développement, Paris, France. 815 p. (Ref. 57127)

IUCNのレッドリストの状況は (Ref. 130435: Version 2024-1)

  軽度懸念 (LC) ; Date assessed: 24 April 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

人間に対する脅威

  Harmless





Human uses

水産業: 少数商業の
FAO - Publication: search | FishSource |

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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=0.00589 (0.00269 - 0.01291), b=3.03 (2.84 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
栄養段階 (Ref. 69278):  3.4   ±0.5 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  高い, １５か月以下の倍増期間の最小個体群 (K=1.30; tmax=3; assuming fec > 10,000).
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (34 of 100).
価格帯 (Ref. 80766):   Unknown.