分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes) >
Bagridae (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
生态学
; 淡水 居于水底的. 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 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 44.7 cm TL 雄鱼/尚未辨别雌雄; (Ref. 52249)
背棘 (总数): 1; 背的软条 (总数): 9-10; 臀鳍软条: 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).
头部多扁平的, 平滑的上方或细有条纹在细长囱门的侧边上; 齿 5-6 倍于宽度的上颌骨前条纹, 几乎像牦骨齿的条纹一样的宽; 吻截形.(参考文献 2988) 吻突出的超过下颌.(参考文献 52162, 参考文献 2988) 上颌骨触须 1.66-两倍头长, 达到腹鳍 (参考文献 52162), 但是不经过腹鳍基底.(参考文献 1884) 鼻骨触须 1/5- 头长的 1/3; 内部的颚触须 0.33-0.4 倍于头长.(参考文献 2988) 外部的颚触须 0.60-0.66 倍于头长.(参考文献 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, 白色的在;之下 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).
在大河的较深的水域中呈现。 (参考文献 4967)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
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)
人类利用
渔业: 商业性
更多信息
俗名同种异名新陈代谢捕食者生态毒物学繁殖成熟度产卵场产卵群集孕卵数卵卵的发育
参考文献养殖养殖信息品种遗传学Electrophoreses遗传率疾病加工NutrientsMass conversion
合作者照片Stamps, Coins Misc.声音神经毒速度泳型鳃区Otoliths脑重体重比眼睛色素
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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).
营养阶层 (Ref.
69278): 3.8 ±0.9 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 (Assuming Fec>10,000).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (35 of 100).
