• Publications
  • Influence
Effects of the herbicides clomazone, quinclorac, and metsulfuron methyl on acetylcholinesterase activity in the silver catfish (Rhamdia quelen) (Heptapteridae).
Fingerlings of the silver catfish (Rhamdia quelen) were exposed to three herbicides widely used in rice culture in south Brazil: clomazone, quinclorac, and metsulfuron methyl. LC50 was determined andExpand
  • 144
  • 11
Biologia do jundiá Rhamdia quelen (Teleostei, Pimelodidae)
The jundia, Rhamdia quelen, occurs from Southern Mexico to Central Argentina, and the husbandry of this species is spreading in Southern Brazil. Consequently, the aim of this review is to present theExpand
  • 214
  • 11
Tissue-Specific Cadmium and Metallothionein Levels in Rainbow Trout Chronically Acclimated to Waterborne or Dietary Cadmium
Rainbow trout were exposed to a sublethal concentration of waterborne Cd (0 or 3 μg/L) or dietary Cd (0 or 500 mg/kg dry wt) for 30 days to induce acclimation, and tissue Cd and metallothionein (MT)Expand
  • 108
  • 9
  • PDF
Herbicide Formulation with Glyphosate Affects Growth, Acetylcholinesterase Activity, and Metabolic and Hematological Parameters in Piava (Leporinus obtusidens)
The teleost fish Leporinus obtusidens (piava) was exposed to different concentrations of Roundup, a commercial herbicide formulation containing glyphosate (0, 1, or 5 mg L−1), for 90 days.Expand
  • 92
  • 7
Survival and growth of silver catfish larvae exposed to different water pH
The objective of this study was to determine the influence ofwater pH (5.5, 6.0, 7.0, 8.0, and 8.5) on survival and growth ofsilver catfsh (Rhamdia quelen) larvae. Larvae were obtained frominducedExpand
  • 57
  • 7
Ammonia and pH effects on some metabolic parameters and gill histology of silver catfish, Rhamdia quelen (Heptapteridae)
Abstract The aim of the present study was to assess the effect of ammonia exposure at different pH on survivorship and metabolic parameters in the liver, muscle and gill histology of silver catfish (Expand
  • 97
  • 6
Analysis of antidiarrhoeic effect of plants used in popular medicine.
People customarily use the extracts of plants known to have antidiarrhoeal effects without any scientific base to explain the action of the extract. For this reason, an investigation was undertakenExpand
  • 113
  • 6
  • PDF
Growth, biochemical and physiological responses of Salminus brasiliensis with different stocking densities and handling
Abstract The dourado Salminus brasiliensis is a freshwater species found in major South American rivers and has recently been cultivated in cage systems. As stocking density and handling are knownExpand
  • 62
  • 5
Transportation of silver catfish, Rhamdia quelen, in water with eugenol and the essential oil of Lippia alba
This study investigated the effectiveness of eugenol and of the essential oil (EO) of Lippia alba when used in the transport of the silver catfish (Rhamdia quelen). These investigations involvedExpand
  • 98
  • 5
Metals in the water, sediment, and tissues of two fish species from different trophic levels in a subtropical Brazilian river
Abstract In aquatic environments, heavy metals are produced from natural and anthropogenic sources and the degree of contamination in fish tissues depend on the pollutant type, fish species, samplingExpand
  • 102
  • 4