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Characiformes (Characins) >
Characidae (Characins; tetras) > Characinae
Etymology: Roeboides: Latin, rubus, ruber, reddish.
More on author: Fowler.
Issue
See Hahn et al. (2000) for dental development and ontogenetic diet shifts.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; Água doce bentopelágico; pH range: 5.8 - 6.8; dH range: ? - 8. Subtropical; 22°C - 26°C (Ref. 2059)
South America: Paraguay and lower Paraná River basins.
Length at first maturity / Tamanho / Peso / Idade
Maturity: Lm 43.0  range ? - ? cm
Max length : 8.9 cm SL macho/indeterminado; (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).
Life cycle and mating behavior
Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
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)
Categoria na Lista Vermelha da IUCN (Ref. 130435: Version 2024-1)
Ameaça para o homem
Harmless
Utilização humana
Ferramentas
Relatórios especiais
Descarregue XML
Fontes da internet
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 (0.00442 - 0.02263), b=3.09 (2.89 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Nível Trófico (Ref.
69278): 3.3 ±0.46 se; based on food items.
Resiliência (Ref.
120179): Elevada, tempo mínimo de duplicação da população menor que 15 meses (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).