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Cladistii >
Polypteriformes (Bichirs) >
Polypteridae (Bichirs)
Etymology: Polypterus: Greek, poly = a lot of + Greek, pteron = wing, fin (Ref. 45335); palmas: Named after M. Büttikofer, collector of the type-specimens (Ref. 46277).
More on author: Ayres.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 居于水底的; pH range: ? - 7.0; dH range: ? - 10. 熱帶; 26°C - 28°C (Ref. 2060); 7°N - 10°S
Africa: coastal rivers of the Gulf of Guinea, from Guinea Bissau to Liberia and upper Cavally River in Côte d'Ivoire; also in upper Casamance River in Senegal (Ref. 28149, 81263). Reports from the Congo River basin (Ref. 44840, 51193) and Democratic Republic of the Congo (Ref. 4537) probably refer to Polypterus polli, previously a subspecies of Polypterus palmas, and only known from the Congo River basin (Ref. 28149).
非洲: 在象牙海岸與賴比瑞亞東方的河流域的卡瓦利河流域向上到聖約翰河。 (參考文獻 28149)
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 35.3 cm SL 雄鱼/尚未辨别雌雄; (Ref. 28149)
简单描述
型态特徵 | 形态测量图
背棘 (总数): 7 - 10; 臀棘 12-14; 脊椎骨: 56 - 59. Diagnosis: Polypterus palmas is distinguished from other species of the genus by the upper jaw longer than lower jaw, pectoral fin not reaching the level of the first dorsal fin ray and 27-32 scales between occiput and first dorsal fin ray (Ref. 2835, 28149, 42908, 81263).
圆筒形的身体.(参考文献 28149) 上颌突出又稍微长度超过下颌.(参考文献 3054, 参考文献 28149, 参考文献 42908) 背部离鳍的数字: 7-9.(参考文献 28149, 参考文献 51884) 胸鳍不延伸到背鳍起点。 (参考文献 3054, 参考文献 28149) 硬鳞:(参考文献 42904) 55-58个侧线鳞片, 身体的周围 33-39个鳞片,25-32个前背的鳞片.(参考文献 28149, 参考文献 51884) 身体的背面是灰色的, 藉由形成一个密集而网状的图案，腹面的深灰色的到黑色的不规则的斑块全灰白色的.(参考文献 28149) 肉质基底那在后面的部份上胸鳍有小的斑点.(参考文献 28149) 背鳍有斑点的, 没有在腹鳍与臀鳍上的深色的颜色.(参考文献 28149)
Facultative air-breathing (Ref. 126274)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
非洲: 在象牙海岸與賴比瑞亞東方的河流域的卡瓦利河流域向上到聖約翰河。 (參考文獻 28149)
Hanssens, M.M., G.G. Teugels and D.F.E. Thys Van Den Audenaerde, 1995. Subspecies in the Polypterus palmas complex (Brachiopterygii; Polypteridae) from West and Central Africa. Copeia 1995(3):694-705. (Ref. 28149)
人类利用
渔业: 没有兴趣; 水族馆: 商业性
更多信息
年龄范围成长体长-体重体长-体长体长-频率形态测量图型态特徵仔鱼稚鱼动力学入添量丰度BRUVS
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 = 0.5002 [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).
营养阶层 (Ref.
69278): 2.9 ±0.43 se; based on food items.
回复力 (Ref.
120179): 低的, 最小族群倍增时间4.5 - 14 年 (Fec=5 observed in Aquatium is probably too low; assuming > 10 fecundity (RF)).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (33 of 100).
