分类 / Names
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Teleostei >
Siluriformes (Catfishes) >
Clariidae (Airbreathing catfishes)
Etymology: Clarias: Greek, chlaros = lively, in reference to the ability of the fish to live for a long time out of water.
More on author: Günther.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 居于水底的; 河川洄游 (Ref. 51243). 熱帶; 9°N - 3°N
Africa: Ouémé, Ogun, Oshun, the Niger delta, Niger River up to Lake Kainji and the rivers Benue and Cross, in Benin and Nigeria (Ref. 57129). Also reported from the Ofin River (Pra basin) in Ghana (Ref. 248, 272).
非洲: 在奈及利亞的貝南, Ogun 與 Oshun 系統的 Oueme 河, 在尼日三角州中，中央的尼日向上到 Kainji湖與在貝努埃河 (奈及利亞) 中.
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 31.6 cm TL 雄鱼/尚未辨别雌雄; (Ref. 57129)
简单描述
检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 0; 背的软条 (总数) : 74 - 87; 臀鳍软条: 57 - 67; 脊椎骨: 60 - 62. Diagnosis: tooth plates extremely narrow (Ref. 248, 57129). Vomerine tooth plate very long (Ref. 248), its length almost twice that of the premaxillary plate (Ref. 57129). Width of premaxillary plate 21.5-26.2% of head length, width of vomerine plate 19.0-22.8% of head length, length of vomerine plate 5.2-8.6% of head length (Ref. 57129). Head short and rounded in dorsal outline; eyes relatively large and dorsally located; frontal fontanelle very small, short and squat (`sole-shaped'); occipital fontanelle small and oval-shaped; "dermosphenotic" and supraorbital bones joined by a common suture, except in a specimen of 27 mm SL; pectoral spine robust and slightly curved; openings of secondary canals along lateral line appear as irregular white spots on body (Ref. 248).
Coloration: no information on colour in life (Ref. 57129). Preserved specimens show 2 types of colouration: uniform, with back and sides dark brown and belly lighter; and marbled, with irregular brownish spots against a light background on back and sides, and belly whitish (Ref. 57129). Dorsal and anal fins white-edged (Ref. 57129).
头部短的而且在背部的轮廓中圆的。 眼相当大的而且位于背面。 额骨囱门非常小的, 短的与蹲.(唯一的-形状的') 后头骨囱门小而椭圆形的。 皮蝶骨的' 与上眼窝骨被一个普遍缝合连结了, 除了 27 的标本 mm SL。 齿板非常狭窄。 犁骨齿碟非常长的。 胸棘结实的而且些微地弯曲。 第二感觉管的开口沿着侧线在身体上呈现不规则的白色斑点。
Facultative air-breathing (Ref. 126274); No information is available on the biology of the species (Ref. 78218).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
非洲: 在奈及利亞的貝南, Ogun 與 Oshun 系統的 Oueme 河, 在尼日三角州中，中央的尼日向上到 Kainji湖與在貝努埃河 (奈及利亞) 中.
Teugels, G.G., 1986. A systematic revision of the African species of the genus Clarias (Pisces; Clariidae). Ann. Mus. R. Afr. Centr., Sci. Zool., 247:199 p. (Ref. 248)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00676 (0.00366 - 0.01249), b=3.03 (2.87 - 3.19), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.4 ±0.5 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 高度, 族群倍增时间少于 15个月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (22 of 100).
