Schilbe brevianalis : fisheries

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Schilbe brevianalis (Pellegrin, 1929)

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

Teleostei > Siluriformes (Catfishes) 鯰形目 (Catfishes) > Schilbeidae (Schilbid catfishes) 北非鯰科 (Schilbid catfishes)
Etymology: brevianalis: From the Latin "brevis" (short) and "anus" (here referring to the anal fin) because of the short anal fin and the low number of anal fin rays in the types of this species (Ref. 43912).
More on author: Pellegrin.

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

; 淡水 居於水底的. 熱帶; 24°C - 27°C (Ref. 12468)

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

Africa: Nigeria to Cameroon (Ref. 57127), possibly also from coastal rivers in Togo (Ref. 78218). Known from the rivers Ogun (Ref. 13331), lower Niger (Ref. 13331, 57127), Kwa-Ibo and Cross in Nigeria (Ref. 43912, 57127), and the Wouri, Sanaga and Nyong in Cameroon (Ref. 7351, 43912, 81643). Report from Ogowe (Ref. 43912) refers to S. laticeps (Ref. 81643). Report from the Congo River basin (Ref. 51193) not confirmed in Ref. 43912, 78218 or 81643.
非洲: 奈及利亞 (在拉哥斯 ， Kua Ibo 與十字河附近的沿海河川) 與喀麥隆 (Nyong, 沙那加河下游與 Wouri 河).

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 8.2 cm SL 雄魚/尚未辨別雌雄; (Ref. 81643)

簡短描述 型態特徵 | 形態測量圖

背棘 (總數): 1; 臀鰭軟條: 34 - 39. Diagnosis: small species, less than 100 mm long; eyes small, diameter not exceeding 23% of head length; inner margin of pectoral-fin spine weakly denticulate (Ref. 43912, 57127, 81643). Head rounded (Ref. 43912). Nasal barbels always extending beyond hind margin of eye (Ref. 57127, 81643) but not beyond anterior border of opercle (Ref. 43912). Adipose fin always present (Ref. 43912, 57127, 81643) and fully developed (Ref. 57127, 81643). 34-39 branched anal-fin rays and 6-8 gill rakers on lower limb of first gill arch (Ref. 57127, 81643). Colour pattern marbled (Ref. 43912, 57127, 81643). Barbels well developed (Ref. 81643). Posterior nostrils at same distance or closer to each other than the anterior pair (Ref. 43912, 81643).

生物學特性     字彙 (例如 epibenthic)

Oviparous, eggs are unguarded (Ref. 205). Occasionally imported from Nigeria to Europe or America for aquarium purposes (Ref. 43912).

Life cycle and mating behavior 成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚

Distinct pairing (Ref. 205).非洲: 奈及利亞 (在拉哥斯 ， Kua Ibo 與十字河附近的沿海河川) 與喀麥隆 (Nyong, 沙那加河下游與 Wouri 河).

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

De Vos, L., 1995. A systematic revision of the African Schilbeidae (Teleostei, Siluriformes). With an annotated bibliography. Ann. Mus. R. Afr. Centr., Sci. Zool., 271:1-450. (Ref. 43912)

IUCN 瀕危狀態 (Ref. 130435)

  無危 (LC) ; Date assessed: 12 September 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  無害處的





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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):  3.2   ±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 (Assuming fec > 10,000).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).
價格種類 (Ref. 80766):   Unknown.