Schilbe uranoscopus : fisheries

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Schilbe uranoscopus Rüppell, 1832

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Schilbe uranoscopus
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分類 / Names 俗名 | 同種異名 | Catalog of Fishes(, ) | ITIS | CoL | WoRMS | Cloffa

Teleostei > Siluriformes (Catfishes) 鯰形目 (Catfishes) > Schilbeidae (Schilbid catfishes) 北非鯰科 (Schilbid catfishes)
Etymology: uranoscopus: Named for Mr. Isidore Geoffroy St-Hilaire, collector of the type material of this nominal species (Ref. 43912).
More on author: Rüppell.

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

; 淡水 居於水底的; 河川洄游 (Ref. 51243). 熱帶

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri

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).
非洲: 尼日,十字河,查德。 非洲: 尼羅河, Turkana 系統。

Length at first maturity / 大小 / 重量 / 年齡

Maturity: Lm 21.0, range 12 - ? cm
Max length : 36.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 57127)

簡短描述 型態特徵 | 形態測量圖

背棘 (總數): 1; 臀鰭軟條: 59 - 73; 脊椎骨: 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).

生物學特性     字彙 (例如 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 成熟度 | 繁殖 | 產卵場 | | 孕卵數 | 仔魚

Distinct pairing (Ref. 205).非洲: 尼日,十字河,查德。 非洲: 尼羅河, Turkana 系統。

主要參考資料 Upload your references | 參考文獻 | 合作者 | 合作者

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 瀕危狀態 (Ref. 130435)

  無危 (LC) ; Date assessed: 24 April 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  無害處的





人類使用

漁業: 低經濟
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 (0.00263 - 0.01321), b=3.02 (2.83 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
營養階層 (Ref. 69278):  3.4   ±0.5 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  高度, 族群倍增時間少於 15個月 (K=1.30; tmax=3; assuming fec > 10,000).
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (34 of 100).
價格種類 (Ref. 80766):   Unknown.