Gomes, L C;
Chippari-Gomes, A R;
Miranda, T O;
Pereira, T M;
Merçon, J;
Davel, V C;
Barbosa, B V;
Pereira, A C H;
Frossard, A;
Ramos, J P L.
Abstract The Doce River basin has suffered the largest environmental accident ever occurred in Brazil with the influx of tailings from Fundão and Santarém, belonging to Samarco mining company, due to the disaster in Mariana. A spill between 50 and 60 million m3 of tailings was estimated by the company...
Brasil,
Cíclidos/genética,
Cíclidos/fisiología,
Daño del ADN/efectos de los fármacos,
Desastres,
Monitoreo del Ambiente/métodos,
Agua Dulce/química,
Metales Pesados/análisis,
Metales Pesados/clasificación,
Metales Pesados/toxicidad,
Minería,
Ríos/química,
Contaminantes Químicos del Agua/análisis,
Contaminantes Químicos del Agua/clasificación,
Contaminantes Químicos del Agua/toxicidad
Abstract In this study, the development and assessment of a modified, efficient, and cost-efficient protocol for mDNA (metagenomic DNA) extraction from contaminated water samples was attempted. The efficiency of the developed protocol was investigated in comparison to a well-established commercial kit (E...
Métodos Analíticos de la Preparación de la Muestra/economía,
Métodos Analíticos de la Preparación de la Muestra/métodos,
Bacterias/clasificación,
Bacterias/genética,
Bacterias/aislamiento & purificación,
ADN Bacteriano/genética,
ADN Bacteriano/aislamiento & purificación,
Agua Dulce/química,
Agua Dulce/microbiología,
Metagenómica/economía,
Metagenómica/métodos,
Filogenia,
Análisis de Secuencia de ADN
Abstract The objective of this study was to compare and correlate the ecology of neonates and young individuals of Potamotrygon wallacei, Potamotrygon motoro and Paratrygon aiereba with regard to their hematological profile and the physicochemical parameters of the water that they inhabit. Principal comp...
Abstract This study assessed the genotoxicity and chemical quality of the Rio dos Sinos, southern Brazil. During two years, bimonthly, cuttings of Tradescantia pallida var. purpurea with flower buds were exposed to river water samples from Caraá, Santo Antônio da Patrulha, Taquara and Campo Bom, which ...
Abstract The phosphorus and nitrogen discharge via effluent of intensive trout farming system was quantified through the use of environmental indicators. The nutrient loads, the mass balance, the estimated amount of nutrients in feed and the amount of nutrients converted in fish biomass were calculated b...
Abstract The evaluation of abiotic and biotic variables can provide information for understanding the structure and function of lotic systems. To obtain this information, measurements of 15 chemical and physical variables and of phytoplankton were conducted at two sampling stations. The present study aim...
Abstract Considering the importance of lignocellulose macrophyte-derived for the energy flux in aquatic ecosystems and the nutrient concentrations as a function of force which influences the decomposition process, this study aims to relate the enzymatic activity and lignocellulose hydrolysis in different...
Araceae/metabolismo,
Bacterias/enzimología,
Proteínas Bacterianas/metabolismo,
Celulasa/metabolismo,
Agua Dulce/química,
Lignina/metabolismo,
Paspalum/metabolismo,
Araceae/crecimiento & desarrollo,
Araceae/microbiología,
Brasil,
Carbono/metabolismo,
Celulosa/genética,
Celulosa/metabolismo,
Ecosistema,
Agua Dulce/microbiología,
Paspalum/crecimiento & desarrollo,
Paspalum/microbiología
O estrogênio sintético 17α-etinilestradiol, principal componente utilizado em formulações de contraceptivos orais, tem sido apontado como um dos principais compostos responsáveis por provocar efeitos adversos no sistema endócrino de várias espécies. O objetivo deste estudo foi analisar o est...
Congéneres del Estradiol/efectos adversos,
Congéneres del Estradiol/análisis,
Etinilestradiol/efectos adversos,
Etinilestradiol/análisis,
Contaminantes Químicos del Agua/efectos adversos,
Contaminantes Químicos del Agua/análisis,
Contaminación del Agua/legislación & jurisprudencia,
Brasil,
Disruptores Endocrinos/efectos adversos,
Disruptores Endocrinos/análisis,
Estrógenos,
Europa (Continente),
Agua Dulce/análisis,
Agua Dulce/química,
Estados Unidos
El propósito del presente estudio fue conocer la concentración natural del ión fluor contenido en el agua de consumo humano de la región de Tarma y demostrar que el efecto cariostático de éste es mayor cuando se incrementa la concentración de fluor y/o cuando la población se encuentra ubicada a m...
