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); ecai: From the Tupi-Guarani eçai, meaning small eye, in allusion to the smaller eye diameter in comparison to other Bryconamericus species..
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性. 亚热带的
South America: Laguna dos Patos drainage in Rio Grande do Sul, Brazil.
南美洲: 小湖在巴西的南里约格朗德做 Patos 流域。
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 7.5 cm SL 雄鱼/尚未辨别雌雄; (Ref. 54750)
简单描述
型态特徵 | 形态测量图
Distinguished from other species of Bryconamericus by the combination of the following characters: body depth 33.1-36.9% SL, mean 34.9; eye diameter 31.1-33.9% HL, mean 32.3; snout length 26.8-32.4% HL, mean 29.6; branched anal-fin rays 15-18; teeth of inner row of premaxilla tricuspid or pentacuspid; teeth compressed distally; and males with bony hooks on pelvic and anal fins (Ref. 54750).
与其他种的 Bryconamericus 区分了藉由下列特征的组合: 体高 33.1-36.9% SL, 意谓 34.9; 眼直径 31.1-33.9% HL, 意谓 32.3; 吻的长度 26.8-32.4% HL, 意谓 29.6; 分枝的臀鳍棘条 15-18; 前颌骨三尖瓣或 pentacuspid 的内部列的齿; 齿扁长形的末梢部地; 而且在腹鳍与臀鳍上雄性有多骨的钩.(参考文献 54750)
描述: 背鳍鳍条 ii,8. 臀鳍棘条 iii-iv,15-18. 胸鳍鳍条 i ， 10-12. 腹鰭鰭條 i ， 6-7.(參考文獻 54750)
Occurs in a creek with clear to turbid water, light to moderate water current and bottom with stones and sand (Ref. 54750).
用清澈至混浊的水, 淡色到中等的水流出现于一条小溪而且用石头与沙子出现于底部。 (参考文献 54750)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
南美洲: 小湖在巴西的南里约格朗德做 Patos 流域。
da Silva, J.F.P., 2004. Two new species of Bryconamericus Eigenmann (Characiformes: Characidae) from southern Brazil. Neotrop. Ichthyol. 2(2):55-60. (Ref. 54750)
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=0.01000 (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).
