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Characiformes (Characins) >
Characidae (Characins; tetras) > Characinae
Etymology: Roeboides: Latin, rubus, ruber, reddish.
More on author: Fowler.
Taxonomic Remarks
See Hahn et al. (2000) for dental development and ontogenetic diet shifts.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
; eau douce benthopélagique; pH range: 5.8 - 6.8; dH range: ? - 8. Subtropical; 22°C - 26°C (Ref. 2059)
South America: Paraguay and lower Paraná River basins.
Longueur à la première maturité / Taille / Poids / Âge
Maturité: Lm 43.0  range ? - ? cm
Max length : 8.9 cm SL mâle / non sexé; (Ref. 36811)
Found in inlets and backwaters of rivers and streams. Forages mostly at twilight, stalking larger fishes to feed on their scales. Approaches its intended prey stealthily and usually aims at its flank. Strikes mostly with its mouth closed, dislodging the scales with its stout, external and forward-directed teeth. The jarring strike dislodges a few scales which are swallowed immediately if taken in the mouth, or gathered as they sink. Also feeds on aquatic insects (Ref. 40383).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Lucena, C.A.S. de, 2007. Revisão taxonômica das espéces do gênero Roeboides grupo-affinis (Ostariophysi, Characiformes, Characidae). Iheringia, Ser. Zool., Porto Alegre 97(2):117-136. (Ref. 75795)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01000 (0.00448 - 0.02233), b=3.09 (2.89 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Niveau trophique (Réf. 69278) |
3.3 ±0.46 se; based on food items. |
Vulnérabilité de la pêche (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |