Results 121 to 130 of about 172 (137)
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Bulletin of Environmental Contamination and Toxicology, 2012
In this study, we investigated zinc and copper effects on acetylcholinesterase (AChE, EC. 3.1.1.7) activity and metal accumulation in tissues of native fish Leporinus obtusidens (piava). Fish were exposed to 10 and 20 % of the LC(50) that corresponded at 2.28 and 4.57 mg/L (zinc) and 0.018 and 0.038 mg/L (copper) for 30 and 45 days.
Carolina Rosa, Gioda +5 more
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In this study, we investigated zinc and copper effects on acetylcholinesterase (AChE, EC. 3.1.1.7) activity and metal accumulation in tissues of native fish Leporinus obtusidens (piava). Fish were exposed to 10 and 20 % of the LC(50) that corresponded at 2.28 and 4.57 mg/L (zinc) and 0.018 and 0.038 mg/L (copper) for 30 and 45 days.
Carolina Rosa, Gioda +5 more
openaire +2 more sources
Chemosphere, 2007
Effects of different herbicides on acetylcholinesterase (AChE), catalase and TBARS formation in teleost fish (Leporinus obtusidens) were studied. Fish were exposed during 30 days at concentrations of herbicides used in rice field. AChE activity in the brain decreased significantly after exposure to the herbicides clomazone and quinclorac. However, AChE
Bibiana Silveira, Moraes +6 more
openaire +2 more sources
Effects of different herbicides on acetylcholinesterase (AChE), catalase and TBARS formation in teleost fish (Leporinus obtusidens) were studied. Fish were exposed during 30 days at concentrations of herbicides used in rice field. AChE activity in the brain decreased significantly after exposure to the herbicides clomazone and quinclorac. However, AChE
Bibiana Silveira, Moraes +6 more
openaire +2 more sources
Animal Reproduction Science, 2008
A practical sperm cryopreservation protocol using a dry-shipper and a diluent of simple composition is described for the neotropical fish Leporinus obtusidens (Valenciennes, 1836). The cooling rate of the dry-shipper and its period of useful time, established under laboratory conditions, were respectively 25.7-30.8 degrees C/min (between 0 and -60 ...
P F, Taitson, E, Chami, H P, Godinho
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A practical sperm cryopreservation protocol using a dry-shipper and a diluent of simple composition is described for the neotropical fish Leporinus obtusidens (Valenciennes, 1836). The cooling rate of the dry-shipper and its period of useful time, established under laboratory conditions, were respectively 25.7-30.8 degrees C/min (between 0 and -60 ...
P F, Taitson, E, Chami, H P, Godinho
openaire +2 more sources
Waste Management & Research: The Journal for a Sustainable Circular Economy, 2013
The disposal of municipal waste in landfills may pose an environmental problem because the product of the decomposition of these residues generates large volumes of leachate, which may present high toxicity. The aim of this study was to assess the toxic and genotoxic effects of a sample of untreated leachate in fish ( Leporinus obtusidens) and onions (
Cláudia Regina, Klauck +2 more
openaire +2 more sources
The disposal of municipal waste in landfills may pose an environmental problem because the product of the decomposition of these residues generates large volumes of leachate, which may present high toxicity. The aim of this study was to assess the toxic and genotoxic effects of a sample of untreated leachate in fish ( Leporinus obtusidens) and onions (
Cláudia Regina, Klauck +2 more
openaire +2 more sources
Pesticide Biochemistry and Physiology, 2009
Pesticides, such as herbicides can affect the metabolic and toxicological parameters on fish. For this reason, an experiment was carried out with the objective of to evaluate the effects of commercial formulations of clomazone and propanil herbicides on acetylcholinesterase (AChE), thiobarbituric acid-reactive substances (TBARS), catalase (CAT) and ...
Bibiana Silveira Moraes +7 more
openaire +1 more source
Pesticides, such as herbicides can affect the metabolic and toxicological parameters on fish. For this reason, an experiment was carried out with the objective of to evaluate the effects of commercial formulations of clomazone and propanil herbicides on acetylcholinesterase (AChE), thiobarbituric acid-reactive substances (TBARS), catalase (CAT) and ...
Bibiana Silveira Moraes +7 more
openaire +1 more source
Parasitology Research, 2013
During a survey of myxozoan parasites of freshwater fish from the Mogi Guaçu River in São Paulo State, Brazil, plasmodia of Henneguya visibilis n. sp. were found on the fins of Leporinus obtusidens (Characiformes: Anostomidae). The plasmodia, which were observed on five out of eight (62.5%) L. obtusidens examined, were 400-1,000 μm long.
Edson Adriano +2 more
exaly +3 more sources
During a survey of myxozoan parasites of freshwater fish from the Mogi Guaçu River in São Paulo State, Brazil, plasmodia of Henneguya visibilis n. sp. were found on the fins of Leporinus obtusidens (Characiformes: Anostomidae). The plasmodia, which were observed on five out of eight (62.5%) L. obtusidens examined, were 400-1,000 μm long.
Edson Adriano +2 more
exaly +3 more sources
Conservation Genetics Resources, 2014
Ten microsatellite markers were isolated and characterized for piau-verdadeiro (Leporinus obtusidens), an important Characiform fish species in South American basins. The markers were obtained from an enriched microsatellite genomic library, and polymorphisms were evaluated in a sample of 44 individuals caught in the upper Sao Francisco River.
Karine K. C. Oliveira +2 more
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Ten microsatellite markers were isolated and characterized for piau-verdadeiro (Leporinus obtusidens), an important Characiform fish species in South American basins. The markers were obtained from an enriched microsatellite genomic library, and polymorphisms were evaluated in a sample of 44 individuals caught in the upper Sao Francisco River.
Karine K. C. Oliveira +2 more
openaire +1 more source
Parasitology Research, 2011
Henneguya azevedoi n. sp. is described from the piava (Leporinus obtusidens). Between 2005 and 2007, 60 fish were collected from the Mogi-Guaçu River near Cachoeira de Emas Falls located in the municipality of Pirassununga, state of São Paulo, Brazil. A total of 70% had plasmodia of the parasite. The plasmodia were white, spherical, and measured 40-200
Edson Adriano +2 more
exaly +3 more sources
Henneguya azevedoi n. sp. is described from the piava (Leporinus obtusidens). Between 2005 and 2007, 60 fish were collected from the Mogi-Guaçu River near Cachoeira de Emas Falls located in the municipality of Pirassununga, state of São Paulo, Brazil. A total of 70% had plasmodia of the parasite. The plasmodia were white, spherical, and measured 40-200
Edson Adriano +2 more
exaly +3 more sources
INCLUSÃO DE ÓLEO BABAÇU EM RAÇÃO PARA JUVENIS DE PIAU (Leporinus obtusidens)
2022Fernando Alves Braga +7 more
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Selectividad de las redes agalleras para la boga (Leporinus obtusidens).
2015Dománico, Alejandro, Arrieta, Pablo
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