Fish Contamination
Mostrando 1-12 de 79 artigos, teses e dissertações.
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1. Physiological parameters of Piaractus mesopotamicus (Osteichthyes: Characidae) exposed to a biopesticide based on Bacillus thuringiensis
Abstract: This study investigated the physiological effects of a pesticide based on Bacillus thuringiensis (Dipel-WP®) added in the water and diet of Piaractus mesopotamicus during 24 and 48 h. It was added 0.13 g of de B. thuringiensis per kg of commercial feed; and for the fish subjected to the biopesticide in the water of the tanks, it was added 0.13 g/L
An. Acad. Bras. Ciênc.. Publicado em: 19/06/2019
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2. Evaluation of the embryotoxicity in zebrafish (Danio rerio) of the flocculant and coagulant compounds used for water remediation
Resumo Objetivo: O carreamento decorrente das atividades de mineração atinge corpos d'água, causando contaminação da água e acidificação por metais tóxicos. Como conseqüência, a depleção de oxigênio ocorre, com o desaparecimento de certos organismos bênticos, perdas na biomassa do fitoplâncton e do zooplâncton, e mortalidade de peixes. Rem
Acta Limnol. Bras.. Publicado em: 25/04/2019
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3. Use of molecular techniques for the analysis of the microbiological quality of fish marketed in the municipality of Cuiabá, Mato Grosso, Brazil
ABSTRACT The present study was stimulated by the growing demand for healthy food and the technology available for the detection and identification of microbial organisms in fishery products. Molecular tools were used to identify the bacterial community and detect the presence of pathogenic species in samples of farmed and wild-caught fish. Samples of muscle
Food Sci. Technol. Publicado em: 22/10/2018
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4. Assessment of mercury contamination in Brycon falcatus (Characiformes: Bryconidae) and human health risk by consumption of this fish from the Teles Pires River, Southern Amazonia
RESUMO Brycon falcatus é um dos peixes mais consumidos na região da bacia do rio Teles Pires, tendo grande importância comercial na pesca esportiva e profissional artesanal. O objetivo deste estudo foi analisar a presença e concentrações de mercúrio total (HgT) no músculo, fígado e brânquias do peixe B. falcatus. Foi calculado o risco para a saúde
Neotrop. ichthyol.. Publicado em: 26/03/2018
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5. An ecological and comparative analysis of parasites in juvenile Mugil liza (Pisces, Mugilidae) from two sites in Samborombón bay, Argentina
ABSTRACT Mugil liza Valenciennes, 1836 is an economically important food fish and has been recommended for aquaculture in South America. A total of 278 fishes were collected in the spring and summer of 2009 and 2010. These fish were sorted into sample groups according to their size class. We used Bayesian statistics and 95% credible intervals for each parame
Iheringia, Sér. Zool.. Publicado em: 2015-12
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6. DNA damage in the kidney tissue cells of the fish Rhamdia quelen after trophic contamination with aluminum sulfate
Abstract Even though aluminum is the third most common element present in the earth's crust, information regarding its toxicity remains scarce. It is known that in certain cases, aluminum is neurotoxic, but its effect in other tissues is unknown. The aim of this work was to analyze the genotoxic potential of aluminum sulfate in kidney tissue of the fish Rham
Genet. Mol. Biol.. Publicado em: 24/11/2015
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7. Monitoring of Pesticide Residues in Surface and Subsurface Waters, Sediments, and Fish in Center-Pivot Irrigation Areas
In this study, the monitoring of pesticide residues, which show potential for environmental contamination, in center-pivot irrigated areas in the Brazilian cerrado, was performed. The pesticides monitored were acephate, atrazine, azoxystrobin, buprofezin, carbofuran, cyproconazole, chlorpyrifos, difenoconazole, diuron, imidacloprid, malathion, methamidophos,
J. Braz. Chem. Soc.. Publicado em: 2015-11
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8. Histological Alterations in Common Carp (Cyprinus carpio Linnaeus, 1758) Gills as Potential Biomarkers for Fungicide Contamination
ABSTRACTThe present study aimed to investigate the histological alterations in common carp gills caused by a fosetyl-Al and fenamidone based fungicide tested in laboratory conditions at 30, 38 and 50 mg/L concentration. In general, all the tested concentrations activated compensatory-adaptive mechanisms, which caused pathological changes in the fish gills. R
Braz. arch. biol. technol.. Publicado em: 2015-10
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9. Avaliação da concentração de elementos químicos tóxicos na merenda escolar de crianças da cidade de Ribeirão Preto e estimativa de suas ingestões diárias / Assessment of toxic chemicals concentration in the school
Chemical\ s contamination in the environment is a growing worldwide problem. Many of these chemical elements, including Cd, Pb and As are toxic to humans. According to the World Health Organization (WHO), 90% of the intake of these toxic elements occurs through the food consumption (Tavares et al., 1992; Virga et al., 2007). Therefore, the estimation of expo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/09/2012
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10. PROTEOMIC ASPECTS AND TRACE-ELEMENT ACCUMULATION IN FISH BILE: POTENTIAL BIOLOGICAL MARKER FOR ENVIRONMENTAL EXPOSURE? / ASPECTOS PROTEÔMICOS E DETERMINAÇÃO DE ELEMENTOS-TRAÇO EM BÍLIS DE PEIXE: POTENCIAL MARCADOR BIOLÓGICO DE EXPOSIÇÃO AMBIENTAL?
A bílis de peixe é um fluido biológico com grande potencial como biomarcador de exposição ambiental a metais e misturas complexas. Este trabalho verificou o potencial desta matriz em situações de contaminação ambiental por metais e analisou aspectos proteômicos. Duas espécies de peixe (Mugil liza ¿ Tainhas, e Tilapia rendalli ¿ Tilápias) foram
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/02/2012
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11. Impacto da presenÃa de atrazina na comunidade bacteriana do solo / Impact of atrazine on bacteriological soil community
Chemical contamination removal in soil and water depends on microbiological community that is able to degrade these compounds. There is a great evolutionary interest on studying microorganisms that metabolize the xenobiotic ones, since they have relatively been seen as new in the last five decades. Little is known about structure variation of microbiological
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/02/2012
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12. Monitoramento de agrotóxicos em áreas irrigadas por pivô central na microbacia do Tijunqueiro, município de Morrinhos, Goiás / Pesticides monitoring in irrigated areas by central pivot in the Tijunqueiro Watershed municipality of Morrinhos, Goias
The importance of pesticides to the agricultural system production is indisputable, since they are part of the basics inputs, however, it is essential that they be used properly to be preserved not only the quality of the growing product, but also of their own natural resources, especially soil and water. In this study was conducted the pesticides monitoring
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/08/2011