分類 / Names
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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 / 深さの範囲 / distribution range
生態学
; 新鮮な水 底生の漂泳性. High altitude
South America: central Brazil, Paraná River basin in upper Tocantins River drainage.
サイズ / 重さ / 年齢
成熟: Lm ? range ? - ? cm
Max length : 4.3 cm SL オス/雌雄の選別がない; (Ref. 37059)
簡単な記述
検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 0; 背鰭 (合計) : 12 - 13; 肛門の骨: 0; 臀鰭: 8 - 9; 脊つい: 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).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
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のレッドリストの状況は (Ref. 130435: Version 2025-1)
Human uses
用具
特記事項
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インターネットの情報源
Estimates based on models
Phylogenetic diversity index (参照
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).
栄養段階 (参照
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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