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Cladistii >
Polypteriformes (Bichirs)
多鰭魚目 (Bichirs) >
Polypteridae (Bichirs)
多鰭魚科 (Bichirs)
Etymology: Polypterus: Greek, poly = a lot of + Greek, pteron = wing, fin (Ref. 45335); bichir: Named after the local name for the fish (Ref. 43537).
More on author: Lacepède.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的; 河川洄游 (Ref. 51243). 熱帶
Africa: The subspecies Polypterus bichir bichir is known from the Chad basin, Nile River basin and Lake Turkana (Ref. 2835, 81263). Reports from Lake Turkana and the Ouémé are questionable as unsupported by photographs or museum specimens (Ref. 122071). The subspecies Polypterus bichir lapradei is known from the rivers Senegal, Gambia, Geba, Volta and Niger (Ref. 2835, 81263).
非洲: 尼羅河，特坎那湖與奧莫河;(參考文獻 2835) 查德湖，沙立河與洛貢河.(參考文獻 2835)
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 74.0 cm TL 雄魚/尚未辨別雌雄; (Ref. 81263); 最大體重: 2.7 kg (Ref. 367)
背棘 (總數): 13 - 18; 背的軟條 (總數): 0; 臀棘 0; 臀鰭軟條: 13 - 16; 脊椎骨: 61 - 62. Diagnosis: Polypterus bichir is characterized by a lower jaw slightly longer than upper jaw and a pectoral fin reaching the first dorsal ray (Ref. 2835, 42908, 81263). The subspecies P. bichir bichir has 63 to 70 scales in lateral line, 14 to 18 dorsal fin rays and 11 to 13 pelvic fin rays (Ref. 367, 81263). The subspecies P. bichir lapradei has 58 to 68 scales in lateral line, 13 to 15 dorsal fin rays and 13 to 16 pelvic fin rays (Ref. 367, 81263).
近圓柱形的身體; 它的深度 6.8-10.3 倍於體長; 頭長 4.1-5.5 倍體長.(參考文獻 2835) 頭部寬度 1.7-2.3 倍頭長, 眼-直徑 8.5-13.0 倍頭長.(參考文獻 2835) 下頜略長於上頜.(參考文獻 2835, 參考文獻 42908) 背部離鰭的數字: 14-18;(參考文獻 42908) 背部的離鰭部分重疊的當摺疊下來.(參考文獻 31439) 分枝背鰭與尾鰭鰭條的數字: 19-21.(參考文獻 367) 胸鰭延伸到第一背鰭棘。 (參考文獻 367) 硬鱗:(參考文獻 36900, 參考文獻 42904) 63-70個側線鱗片; 身體的周圍 46-54個鱗片; 11-16個前背的鱗片.(參考文獻 2835, 參考文獻 42908) 側線鱗片在後緣上有凹槽。 (參考文獻 2835) 顏色是橄欖色, 但是白色的在腹的側邊上, 在側面的側邊上有三條深色的縱向條紋, 那是更看得見的當幼魚時超過成魚; 胸鰭與腹鰭有呈綠色而淡黃色的橫紋。 (參考文獻 367, 參考文獻 2835)
Facultative air-breathing (Ref. 126274); Polypterus bichir bichir likes shallow water and will often lie basking fo hours near the surface, but when swimming the fish is very pliant, and can turn and twist like an eel (Ref. 4904). The eggs are deposited in weeds, where the adult fish guards the eggs and young (Ref. 36900). It feeds on bottom-feeding fish (Ref. 36900) and is essentially piscivorous (Ref. 367).
多鰭魚〔Polypterus bichir bichir〕 類似淺水區而且經常躺著曬太陽 fo 數小時接近水表面, 但是當游泳魚的時候非常柔軟, 而且能像鰻魚一樣扭轉與盤繞.(參考文獻 4904) 卵被沈積在雜草, 在成魚魚保衛卵與幼魚的地方。 (參考文獻 36900) 吃在底部覓食的魚 (參考文獻 36900) 並且實質上以魚為食。 (參考文獻 367)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
非洲: 尼羅河，特坎那湖與奧莫河;(參考文獻 2835) 查德湖，沙立河與洛貢河.(參考文獻 2835)
Gosse, J.P. and J. Daget, 2003. Polypteridae. p. 101-112. In D. Paugy, C. Lévêque and G.G Teugels (eds.) The fresh and brackish water fishes of West Africa Volume 1. Coll. faune et flore tropicales 40. Institut de recherche de développement, Paris, France, Muséum national d'histoire naturelle, Paris, France and Musée royal de l'Afrique Central, Tervuren, Belgium, 457p. (Ref. 81263)
人類使用
漁業: 商業性
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
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 = 0.5002 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00457 (0.00195 - 0.01073), b=3.05 (2.85 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 4.5 ±0.80 se; based on food items.
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (50 of 100).
