分类 / 名称
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Characiformes (Characins) >
Crenuchidae (South American darters) > Characidiinae
Etymology: Characidium: Diminutive of Charax, -akos = a fish without identification (Ref. 45335); stigmosum: From the Latin stigmosus meaning full of marks, in reference to the vertically oriented black marks on the sides of the body (Ref. 46824).
环境：氛围 / 气候带 / 深度上下限 / 分布范围
生态学
; 淡水 底中水层性. 高海拔
South America: central Brazil, Paraná River basin in upper Tocantins River drainage.
南美洲: Tocantins 河流域上游的巴拉納河流域。
大小 / 重量 / 年龄
成熟度: Lm ? range ? - ? cm
Max length : 4.3 cm SL 雄鱼/尚未辨别雌雄; (Ref. 37059)
简单描述
检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 0; 背的软条 (总数) : 12 - 13; 臀棘: 0; 臀鳍软条: 8 - 9; 脊椎骨: 32 - 33. Distinguished from all other Characidium species by the presence of black marks along the sides of the body, superimposed on the vertical bars, which occur in most species of the genus; most of the marks are vertically oriented elliptical, except anteriormost 1-2 marks, which may be roundish or horizontally elongated (Ref. 46824).
与所有的其他 Characidium 种区分藉由有黑点沿着在纵带上被重叠的身体的侧边, 这出现在本属的大多数鱼种; 大部分的除了最前面的 1-2 标志以外，标志是垂直导向的椭圆形, 那可能是圆或水平瘦长.(参考文献 46824)
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
南美洲: Tocantins 河流域上游的巴拉納河流域。
Melo, M.R.S. and P.A. Buckup, 2002. Characidium stigmosum (Characiformes: Crenuchidae): a new species of Characidiin fish from central Brazil. Copeia 2002(4):988-993. (Ref. 46824)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
人类利用
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基于模型的估算
系统发育多样性指数 (参考文献
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01023 (0.00452 - 0.02316), b=3.07 (2.89 - 3.25), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
营养阶层 (参考文献
69278): 3.3 ±0.3 se; based on size and trophs of closest relatives
渔业脆弱性 (Ref.
59153): Low vulnerability (10 of 100).
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