分类 / Names
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins) >
Characidae (Characins; tetras) > Stevardiinae
Etymology: Bryconamericus: Greek, bryko = to bite + America, latinized (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性; 深度上下限 0 - 2 m (Ref. 52417). 亚热带的
South America: Rio Iguazú basin, Argentina.
南美洲: rio Iguazu 流域，阿根廷。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 6.8 cm SL 雄鱼/尚未辨别雌雄; (Ref. 111771); 最大体重: 6.70 g (Ref. 111771)
简单描述
型态特徵 | 形态测量图
Differs from all congeneric species by the combination of the following characters: premaxilla with 4-6 teeth on the outer row, teeth aligned and tricuspidate or tetracuspidate, maxillary teeth 3-4 and usually pentacuspidate, 18-21 branched anal-fin rays, lateral line with 36-38 perforated scales, a short peduncle (11.6-13.3% SL), a ventrally elongated black humeral spot, a very faint second humeral spot and a narrow black lateral band (Ref. 52417).
有别于所有的同属种藉由下列特征的组合: 前颌骨有 4-6 个牙齿在外部的列, 齿排列与三尖的或者 tetracuspidate, 上颚齿 3-4 与通常 pentacuspidate, 18-21个分枝的臀鳍棘条, 侧线有 36-38个有排孔的鳞片，一个短的梗 (11.6-13.3% SL) ，一个腹瘦长黑色的肩部斑点，一个非常模糊的第二个肩部的斑点与一个狭窄的黑色侧面的条纹.(参考文献 52417)
Collection sites have rapids with clear flowing water, pools and some areas of slow current. Bottom substrate includes mud, sand and mostly stones. Water depth ranges from 0.40-2m and temperate of the water near surface during summer is about 26° C (Ref. 52417).
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
南美洲: rio Iguazu 流域，阿根廷。
Casciotta, J.R., A.E. Almiron and M.D.L.M. Azpelicueta, 2004. Bryconamericus ikaa, a new species from tributaries of the río Iguazú in Argentina (Characiformes, Characidae). Ichthyol. Explor. Freshwat. 15(1):61-66. (Ref. 52417)
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
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=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
营养阶层 (Ref.
69278): 2.6 ±0.3 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 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
