分類 / Names
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Teleostei >
Characiformes (Characins)
脂鯉目 (Characins) >
Alestidae (African tetras)
Alestidae (African tetras)
Etymology: Hydrocynus: Greek, hydr = water + Greek, kyon = dog (Ref. 45335).
More on author: Cuvier.
Environment: milieu / climate zone / depth range / distribution range
生態學
Africa: Cross, Wouri and Sanaga basin in Lower Guinea ichthyofaunal province (Ref. 80290). Also in Chad, Niger, Ogun, Ouémé, Mono, Volta, Comoé, Bandama, Sassandra, Nipoué, St. Paul, Mano, Little Scarcies, Gambia and Senegal basins in West Africa (Ref. 2880, 80290, 81279); Nile River, including Lake Albert (Ref. 4903, 5331); Lake Turkana and Omo River (Ref. 2880, 5331, 80290); and Congo River basin (Ref. 2880, 80290).
非洲: 尼羅河, 湖艾伯特湖 [=湖 Mobutu Sese Seko] ,湖 Turkana 與 Gandjule(Margherita) ,塞內加爾,尼日,佛塔河,象牙海岸,幾內亞,喀麥隆,剛果,迦納,賴比瑞亞,貝努埃河, Omo ,甘比亞,查德,獅子山,貝南。
Length at first maturity / 大小 / 重量 / 年齡
Maturity: Lm 20.0, range 21 - ? cm
Max length : 78.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 2880); 最大體重: 15.5 kg (Ref. 13337); 最大年齡: 4 年 (Ref. 2757)
Diagnosis: 2 scale rows between lateral line and scaly process at pelvic-fin bases; eye <70% of interorbital space (Ref. 2880, 81279). Dorsal-fin uniformly greyish and its origin in front of pelvic fins; adipose fin greyish; caudal fin without black edge (Ref. 80290, 81279).
細長的輪廓。 眼 <70% 的眼間隔。 長與少數鰓耙。 尾鰭下葉以及前端肛門的鮮紅色顏色。 其餘的鰭均勻灰色。
Forms shoals; an open water predator often found near the water surface; feeds on fishes, preferring long bodied fish as they are easier to swallow and also takes insects, grass and snails; cannibalistic; preyed upon by fish eagle Haliaeetus vocifer; breeding migrations have been reported up several tributaries of Lake Kariba during the rains (Ref. 13337).
淺水型。 一個開放水域掠食者時常在水面的附近發現。 (參考文獻 13337) 吃魚, 偏愛長的被身體的魚當他們比較容易吞以及吃昆蟲, 草與蝸牛.(參考文獻 13337) 同類相食的。 被魚鷹 Haliaeetus vocifer 捕食了。 (參考文獻 13337) 繁殖迴游曾經在卡裡巴湖的一些支流上面在雨的時候報告。 (參考文獻 13337) 分類相關: H. vittatus.
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
非洲: 尼羅河, 湖艾伯特湖 [=湖 Mobutu Sese Seko] ,湖 Turkana 與 Gandjule(Margherita) ,塞內加爾,尼日,佛塔河,象牙海岸,幾內亞,喀麥隆,剛果,迦納,賴比瑞亞,貝努埃河, Omo ,甘比亞,查德,獅子山,貝南。
Paugy, D. and S.A. Schaefer, 2007. Alestidae. p. 347-411. In M.L.J. Stiassny, G.G. Teugels and C.D. Hopkins (eds.) Poissons d'eaux douces et saumâtres de basse Guinée, ouest de l'Afrique centrale/The fresh and brackish water fishes of Lower Guinea, west-central Africa. Vol. 1. Coll. Faune et Flore tropicales 42. Istitut de recherche pour le développement, Paris, France, Muséum nationale d'histoire naturelle, Paris, France and Musée royale de l'Afrique centrale, Tervuren, Belgique. 800 p. (Ref. 80290)
人類使用
漁業: 商業性; 游釣魚種: 是的
更多資訊
參考文獻養殖養殖資訊品種遺傳學Electrophoreses遺傳率疾病加工NutrientsMass conversion
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00759 (0.00382 - 0.01506), b=3.15 (2.96 - 3.34), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
營養階層 (Ref.
69278): 4.0 ±0.75 se; based on food items.
回復力 (Ref.
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (K=0.17-0.45; tmax=4).
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (39 of 100).
Nutrients (Ref.
124155): Calcium = 77.7 [34.3, 189.1] mg/100g; Iron = 1.64 [0.88, 3.93] mg/100g; Protein = 19 [17, 21] %; Omega3 = 0.309 [0.128, 0.777] g/100g; Selenium = 60.1 [24.5, 148.2] μg/100g; VitaminA = 40.5 [14.9, 108.0] μg/100g; Zinc = 1.2 [0.8, 1.7] mg/100g (wet weight);