分類 / 名稱
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: Irvineia: It is the name of a seaweed; voltae: Referring to the type locality of this species, the Volta River (Ref. 43912).
Eponymy: Dr Frederick Robert Irvine (1898–1962) was a botanist and science teacher who made a collection of fishes near Accra, Gold Coast (Ghana). [...] (Ref. 128868), visit book page.
More on author: Trewavas.
環境: 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
; 淡水 居於水底的. 熱帶; 6°N - 5°N
Africa: endemic to the lower Volta in Ghana (Ref. 43912, 57127).
非洲: 河佛塔河 (下游)的特有種.
大小 / 重量 / 年齡
成熟度: Lm ?  range ? - ? cm
Max length : 19.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 57127)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 1; 背的軟條 (總數) : 6; 臀鰭軟條: 58 - 68. Diagnosis: posterior (=inner) side of pectoral-fin spines strongly denticulate; 58-68 branched anal-fin rays; 16-18 gill rakers on lower limb of first gill arch; barbels very short, nasal barbel extending to hind margin of eye; adipose fin always present; swim bladder extending backwards through a caecal appendix to above end of anal-fin base (Ref. 43912, 57127). Palatine teeth present (Ref. 57127). Posterior nostrils closer to each other than are anterior ones; 7-9 branched pelvic fin rays (Ref. 43912).
Body shape (shape guide): elongated.
Probably carnivorous, feeding at least partly on small crustaceans (Ref. 43912). Oviparous, eggs are unguarded (Ref. 205).
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
Distinct pairing (Ref. 205).非洲: 河佛塔河 (下游)的特有種.
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: Version 2025-2 (Global))
瀕危 (EN) (B1ab(iii)); Date assessed: 30 November 2019
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基於模型的估計
系統發育多樣性指數 (參考文獻
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00550 (0.00251 - 0.01205), b=3.06 (2.87 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (參考文獻
69278): 3.3 ±0.5 se; based on size and trophs of closest relatives
回復力 (參考文獻
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
釣魚的脆弱性 (Ref.
59153): Low vulnerability (13 of 100).
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