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) >
Bagridae (Bagrid catfishes)
鱨科 (Bagrid catfishes)
Etymology: Bagrus: Mozarabic, bagre, taken from Greek, pagros = a fish (Dentex sp.) (Ref. 45335).
More on author: Boulenger.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的. 熱帶; 3°S - 5°S
Africa: River Pangani (Tanzania)(Ref. 3236) and Lake Chiuta (Ref. 46841).
非洲: 河 Pangani(坦尚尼亞).
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 44.7 cm TL 雄魚/尚未辨別雌雄; (Ref. 52249)
背棘 (總數): 1; 背的軟條 (總數): 9-10; 臀鰭軟條: 13 - 14. Head much depressed, smooth above or finely striated on sides of elongate fontanelle; premaxillary band of teeth 5-6 times as long as broad, nearly as broad as the band of vomerine teeth; snout truncate (Ref. 2988). Snout projecting beyond lower jaw (Ref. 52162, Ref. 2988). Maxillary barbel 1.66-2 times head length, reaching pelvics (Ref. 52162), but not passing the base of the pelvics (Ref. 1884). Nasal barbel 1/5-1/3 of head length; inner mandibular barbel 0.33-0.4 times head length (Ref. 2988). Outer mandibular barbel 0.60-0.66 times head length (Ref. 52162, Ref. 2988). Occipital processus long and narrow, almost reaching the interneural (Ref. 52249). Last ray of dorsal fin above vertical of first ray of pelvics; dorsal spine smooth, feeble; adipose fin 4-5.5 times as long as deep, about twice as long as dorsal fin; caudal fin deeply forked, with pointed lobes (Ref. 2988). Upper lobe of caudal fin with short filament (Ref. 52249). Pectoral spine moderately strong, smooth, or very slightly serrated behind (Ref. 2988).
Coloration: brown or olive above, white beneath; black dots sometimes scattered on the back and on the adipose and caudal fins (Ref. 2988).
頭部多扁平的, 平滑的上方或細有條紋在細長囪門的側邊上; 齒 5-6 倍於寬度的上頜骨前條紋, 幾乎像犛骨齒的條紋一樣的寬; 吻截形.(參考文獻 2988) 吻突出的超過下頜.(參考文獻 52162, 參考文獻 2988) 上頜骨觸鬚 1.66-兩倍頭長, 達到腹鰭 (參考文獻 52162), 但是不經過腹鰭基底.(參考文獻 1884) 鼻骨觸鬚 1/5- 頭長的 1/3; 內部的顎觸鬚 0.33-0.4 倍於頭長.(參考文獻 2988) 外部的顎觸鬚 0.60-0.66 倍於頭長.(參考文獻 52162, 參考文獻 2988) 後頭骨活動長而狹窄的, 幾乎聯絡背側間者.(參考文獻 52249) 背鰭的最後鰭條之上垂直的腹鰭的第一鰭條; 背棘平滑的, 微弱的; 脂鰭 4-5.5 長度與深度比率, 大約兩倍長於背鰭; 尾鰭深深地分岔, 有尖的葉.(參考文獻 2988) 尾鰭上葉有短的絲狀突起。 (參考文獻 52249) 胸棘一般強﹐平滑的, 或非常些微地鋸齒狀的在後.(參考文獻 2988)
體色 褐色或橄欖色上方, 在白色之下的; 黑色的點有時散佈在背部上與在脂鰭與尾鰭上.(參考文獻 2988)
Present in the deeper waters of large rivers (Ref. 4967).
在大河的較深的水域中呈現。 (參考文獻 4967)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
非洲: 河 Pangani(坦尚尼亞).
Risch, L.M., 1986. Bagridae. p. 2-35. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels; MRAC, Tervuren; and ORSTOM, Paris. Vol. 2. (Ref. 3236)
人類使用
漁業: 商業性
更多資訊
俗名同種異名新陳代謝捕食者生態毒物學繁殖成熟度產卵場產卵群集孕卵數卵卵發育
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
合作者照片Stamps, Coins Misc.聲音神經毒速度泳型鰓區Otoliths腦重體重比眼睛色素
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00832 (0.00384 - 0.01800), b=2.95 (2.77 - 3.13), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.8 ±0.9 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 to moderate vulnerability (35 of 100).
