Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Characiformes
(Characins) > Characidae
(Characins) > Characinae
Etymology: Roeboides: Latin, rubus, ruber, reddish. More on author: Fowler.
Environment / Climate / Range
Freshwater; benthopelagic; pH range: 5.8 - 6.8; dH range: ? - 8. Subtropical; 22°C - 26°C (Ref. 2059)
Length at first maturity / Size / Weight / Age
Maturity: Lm 43.0  range ? - ? cm
Max length : 8.9 cm SL male/unsexed; (Ref. 36811)
South America: Paraguay and lower Paraná River basins.
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).
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)
IUCN Red List Status (Ref. 90363)
CITES (Ref. 94142)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
CollaboratorsPicturesStamps, CoinsSoundsCiguateraSpeedSwim. typeGill areaOtolithsBrainsVision
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), based on all LWR estimates for this body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.3 ±0.46 se; Based on food items.
Resilience (Ref. 69278
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .