分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | 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).
Environment: milieu / climate zone / 深度上下限 / distribution range
生態學
; 淡水 底中水層性. 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 / 年齡
成熟度: Lm ? range ? - ? cm
Max length : 4.3 cm SL 雄魚/尚未辨別雌雄; (Ref. 37059)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 0; 背的軟條 (總數) : 12 - 13; 臀棘: 0; 臀鰭軟條: 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).
與所有的其他 Characidium 種區分藉由有黑點沿著在縱帶上被重疊的身體的側邊, 這出現在本屬的大多數魚種; 大部分的除了最前面的 1-2 標誌以外，標誌是垂直導向的橢圓形, 那可能是圓或水平瘦長.(參考文獻 46824)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
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)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-1)
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Estimates based on models
Phylogenetic diversity index (參考文獻
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01230 (0.00479 - 0.03160), b=3.00 (2.77 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (參考文獻
69278): 3.3 ±0.3 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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