Results 61 to 70 of about 1,225 (184)
Ecotoxicology and Environmental Safety, 2008 The effects of 2,4-D (1 or 10 mg/L) on acetylcholinesterase (AChE) and metabolic parameters were evaluated in piava (Leporinus obtusidens) after 96 h. AChE activity was significantly reduced in the brain at a concentration of 10 mg/L and in the muscle at both concentrations tested.
Milene Braga, da Fonseca +8 more
openaire +2 more sources
Boletim do Instituto de Pesca, 2018 A piava (Leporinus obtusidens) é um dos principais peixes nativos cultivados e um dos mais capturados no Rio Grande do Sul. Objetivou-se, com esse trabalho, comparar o rendimento de carcaça e filé de piavas, fêmeas e machos, capturadas em ambiente ...
Andressa Mariza Ribeiro GERALDO +5 more
doaj
Tolerance of piava juveniles to different ammonia concentrations
Semina: Ciências Agrárias, 2015 The objective of this study was to evaluate the tolerance of piavas (Leporinus obtusidens) to ammonia (NH3) by measuring its effects on plasma ion levels and tissue metabolic parameters.
Carlos Eduardo Copatti +4 more
doaj +1 more source
Estudio de la dentición en peces caracoideos de la República Argentina [PDF]
, 1986 Fil: Miquelarena, Amalia María.
Miquelarena, Amalia María
core
Substituição do farelo de soja pelo farelo de linhaça em dietas para a piava (Leporinus obtusidens)
Semina: Ciências Agrárias, 2013 The aim of this study was evaluate the replacement of soybean meal by linseed meal on growth of piava juveniles. The experiment was carried on fish farming laboratory of UFSM/CESNORS, on March to April, 2011. They were used 360 fish, (initial weight = 9.0 ± 2.5 g), which placed in a water re-use system composed by 15 tanks (250L), with mean temperature
Dirleise Pianesso +6 more
openaire +2 more sources
Acta Scientiarum: Biological Sciences, 2016 Effect of larvae of Astyanax altiparanae (AA), Piaractus mesopotamicus (PM), Leporinus obtusidens (LO) and Prochilodus lineatus (PL) on plankton communities and water quality were evaluated.
Claudemir Martins Soares +3 more
doaj +1 more source
Acute toxicity effect of glyphosate on survival rate of common carp, Cyprinus carpio [PDF]
, 2018 Background: Herbicides are usually used to control weeds and some of them like glyphosate are nonselective herbicides. Aquatic environments are usually the last destinations of agricultural pesticides, which disrupt the metabolic processes of organisms.
Masoud Sattari1, Aliakbar Hedayati, +1 more
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Utilização de resíduos de frutas em dietas para piava
Boletim do Instituto de Pesca, 2018 A piava (Leporinus obtusidens) é um peixe nativo das regiões sudeste e sul do Brasil, de hábito alimentar onívoro e com grande potencial para a piscicultura nacional.
Rafael LAZZARI +5 more
doaj
Three invasive species occurring in the diets of fishes in a Neotropical floodplain
Brazilian Journal of BiologyThe composition of the diets of 66 species of fishes was investigated from September 2009 to June 2010 in three subsystems of the Upper Paraná River floodplain (Brazil), following invasion by the two mollusk species Limnoperna fortunei (Dunker, 1857) and
A Isaac +3 more
doaj +1 more source
Orbital: The Electronic Journal of Chemistry, 2018 Heavy metals concentration in fishes are important indicator geomorphological or environmental integrity in aquatic habitats. Aiming to evaluate metal concentration in fish muscles in Apa River, upper Paraguay basin, we analyzed 124 individuals of eight ...
Yzel Rondon Súarez +2 more
doaj +3 more sources