分类 / Names
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).
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 底中水层性. 熱帶
South America: coastal basins from Ribeira de Iguape River basin, Uruguay; Uruguay River basin.
南美洲: 來自 Ribeira de Iguape 河流域到烏拉圭的海岸的流域; 烏拉圭河流域。
Length at first maturity / 大小 / 重量 / 年龄
Maturity: Lm 67.0, range 65 - 69 cm
Max length : 8.7 cm SL 雄鱼/尚未辨别雌雄; (Ref. 116915)
简单描述
检索表 | 型态特徵 | 形态测量图
背的软条 (总数) : 11 - 12; 臀鳍软条: 20. It is distinguished from all other species of Characidium from southern Brazil, except C. sp. cf., C. zebra, in having 14 series of scales around the caudal peduncle (Ref. 27672).
除了 C. sp. 比较以外,它是与来自巴西南部的所有的其他种的 Characidium 区分, C. 斑马 , 尾梗的周围有 14个成列的鳞片。 (参考文献 27672)
Usually found in creeks or small rivers with rocky bottom and clear, fast flowing water (Ref. 27672).
通常发现于小溪或小的河有岩石的底部与清澈的, 快速的流动水.(参考文献 27672)
Life cycle and mating behavior
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
南美洲: 來自 Ribeira de Iguape 河流域到烏拉圭的海岸的流域; 烏拉圭河流域。
Miyazawa, C.S. and P.M. Galetti Jr., 1994. First cytogenetical studies in Characidium species (Pisces: Characiformes, Characidiinae). Cytologia 59:73-79. (Ref. 27418)
世界自然保护联盟红皮书 (Ref. 130435: Version 2024-2)
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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 (0.00582 - 0.01719), b=3.13 (2.99 - 3.27), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
营养阶层 (Ref.
69278): 3.6 ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
