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	Provedor de dados BJB (1) Genet. Mol. Biol. (1) Autor Barbosa,Antonio C. (1) Dorea,Jose G. (1) Grisolia,Cesar K. (1) PEDROSA,P. (1) REZENDE,C. E. (1) Rivero,Carla L. G. (1) Silva,Izabel C. R. da (1) Starling,Fernando L. R. M. (1) Mais... Palavra-chave Eutrophic lake (2) Carbon metabolism (1) Comet assay (1) Cytotoxicity (1) DIC (1) Fish biomonitoring (1) Genotoxicity (1) Micronucleus (1) Mineralization (1) Net primary productivity (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2009 (1) 2000 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Dissolved inorganic carbon and metabolism of an eutrophic lacustrine system: variations from a 36-hours study BJB PEDROSA,P.; REZENDE,C. E.. Based on variations of pelagial dissolved inorganic carbon (DIC) concentrations this article provides estimations of net primary productivity and net mineralization -- net carbon metabolism -- in Cima Lake (Rio de Janeiro State). DIC concentrations varied from 203 to 773 µmol L-1 and %CO2(aq) (saturation) from 339 to 4,901. Net carbon metabolism per light/dark periods from the 36 hours of study ranged, respectively, from -556 to 503 mmol DIC m-2 12 h-1. Marked variations in daily net carbon metabolism of the lake were also observed. The values ranged from -25 to -194 mmol DIC m-2 day-1. The findings were discussed as indicators of dynamic biological behavior toward production or mineralization of organic matter in the system. And, the system seemed to... Tipo: Info:eu-repo/semantics/article Palavras-chave: DIC; Carbon metabolism; Net primary productivity; Mineralization; Eutrophic lake. Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082000000400010 Profile of micronucleus frequencies and DNA damage in different species of fish in a eutrophic tropical lake Genet. Mol. Biol. Grisolia,Cesar K.; Rivero,Carla L. G.; Starling,Fernando L. R. M.; Silva,Izabel C. R. da; Barbosa,Antonio C.; Dorea,Jose G.. Lake Paranoá is a tropical reservoir for the City of Brasilia, which became eutrophic due to inadequate sewage treatment associated with intensive population growth. At present, two wastewater treatment plants are capable of processing up to 95% of the domestic sewage, thereby successfully reducing eutrophization. We evaluated both genotoxic and cytotoxic parameters in several fish species ( Geophagus brasiliensis , Cichla temensis , Hoplias malabaricus , Astyanax bimaculatus lacustres , Oreochromis niloticus , Cyprinus carpio and Steindachnerina insculpita ) by using the micronucleus (MN) test, the comet assay and nuclear abnormality assessment in peripheral erythrocytes. The highest frequencies of MN were found in Cichla temensis and Hoplias... Tipo: Info:eu-repo/semantics/article Palavras-chave: Genotoxicity; Fish biomonitoring; Eutrophic lake; Micronucleus; Comet assay; Cytotoxicity. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572009000100021 Registros recuperados: 2 Primeira ... 1 ... Última

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