分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Gymnotiformes (Knifefishes) >
Apteronotidae (Ghost knifefishes) > Apteronotinae
Etymology: Sternarchorhynchus: Greek, sternon = sternon, + Greek, archos = anus + Greek, rhyngchos = snout (Ref. 45335); britskii: Named after Heraldo A. Britski, who first noted the presence of this species in the upper Parana system (Ref. 36352).
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性. 熱帶
South America: Parana River basin.
南美洲: 巴拉納河流域。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 26.1 cm TL 雄鱼/尚未辨别雌雄; (Ref. 36886)
简单描述
型态特徵 | 形态测量图
背棘 (总数): 0; 背的软条 (总数): 0; 臀棘 0; 臀鳍软条: 166 - 178; 脊椎骨: 80 - 90. Distinguished by its congeners by the following combination of features: length from the tip of the snout to the posterior end of the anal-fin base 92.4-94.4 %TL; mouth length 5.9-7.3 %HL; distance between anterior and posterior nares 2.6-3.1 %HL; eye diameter 3.1-4.1 %HL; postocular distance 40.0-44.4 %HL; pectoral fin length 35.5-41.3 %HL; scales always present above lateral line along anterodorsal region of body; unbranched anterior anal-fin rays 18-22; a white to yellowish white (sometimes indistinct) band on frontal portion of head and middorsum; and pectoral and anal fins hyaline to translucent, without dark distal margins; small ellipsoid caudal fin with 13-15 rays (Ref. 36352).
在特徵的组合之后区别的特徵为它的同类藉由了: 长度从吻尖到臀鳍基底后端 92.4-94.4% TL; 嘴长度 5.9-7.3% HL; 前面与后面的鼻孔 2.6-3.1% HL 之间的距离; 眼直径 3.1-4.1% HL; 眶后的距离 40.0-44.4% HL; 胸鳍长度 35.5-41.3% HL; 鳞片总是沿着身体的前背部区域位于侧线之上; 不分枝的前面臀鳍棘条 18-22; 在头部与背面中央的前部分上的一条白色到黄白色 (有时不明显的) 条纹; 而且胸鳍与臀鳍透明的到半透明的, 没有深色的末梢部的边缘; 小的椭圆体尾鳍有 13-15个鳍条。 (参考文献 36352)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
南美洲: 巴拉納河流域。
de Santana, C. D. and R.P. Vari, 2010. Electric fishes of the genus Sternarchorhynchus (Teleostei, Ostariophysi, Gymnotiformes); phylogenetic and revisionary studies. Zool. J. Linn. Soc. 159:223-371. (Ref. 84053)
人类利用
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
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 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00355 (0.00145 - 0.00871), b=3.06 (2.85 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.3 ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (16 of 100).
