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Now showing items 31-40 of 361
Ação das enzimas extracelulares na dinâmica da decomposição de macrófitas aquáticas
(Universidade Federal de São Carlos, 2011-04-28)
Given the importance of mineralization processes to the knowledge of biogeochemical cycles in aquatic environments and aiming to detail these processes through enzymatic activities of microorganisms which act on aquatic ...
Transposição e fragmentação do Rio Piumhi (Bacia do Rio São Francisco, MG): variáveis limnológicas e microcrustáceos zooplanctônicos da Lagoa dos Tropeiros
(Universidade Federal de São Carlos, 2011-06-29)
The aim of this study was to analyse the physical and chemical characteristics of Tropeiros Lake (Capitólio, MG), located in Piumhi river sub‐basin, a river diverted from the Rio Grande basin to the são Francisco ...
Resposta fisiologica de Chlorella vulgaris sob concentrações variáveis de cádmio, fósforo e nitrogênio
(Universidade Federal de São Carlos, 2012-04-09)
Microalgae are capable of adapting themselves to changes in environmental conditions through the production of different biomolecules. This study investigated the effects of the metal, cadmium on the ecophysiological ...
Análise e zoneamento ambiental da área de proteção ambiental dos rios Ligeirinho e Leãozinho (Erechim, RS)
(Universidade Federal de São Carlos, 2012-03-13)
It was accomplished the analysis and environmental zoning of Ligeirinho and Leãozinho Environmental Protection Area, municipal district of Erechim, RS, with the objective of the environmental quality and ecological ...
Do invisível ao visível: o mapeamento dos grupos sociais do estado de Mato Grosso - Brasil
(Universidade Federal de São Carlos, 2011-07-11)
xuberant landscape, identities that are at the mercy of the historical indifference and of the hegemonic economy of the agribusiness that advances over the so‐called empty spaces are hidden. In these different ...
A comunidade de peixes associada às macrófitas aquáticas flutuantes do reservatório de Itá - Rio Uruguai - Brasil
(Universidade Federal de São Carlos, 2011-02-24)
Different samplings were done in the floating macrophytes stands at Itá reservoir during September, 2006 and March, 2008, with the following objectives: (1) verify the existence of a species-specific relationship between ...
Influência dos antimicrobianos oxitetraciclina e imazalil sobre a decomposição da macrófita aquática Egeria najas Planch
(Universidade Federal de São Carlos, 2015-05-27)
The pharmaceutical compounds residues, especially antibiotics, are among the most
worrying emerging environmental contaminants. These residues potentially cause
negative effects on microorganisms that play an important ...
Cinética e variação molecular de substâncias húmicas formadas da lixiviação de macrófitas aquáticas
(Universidade Federal de São Carlos, 2015-08-13)
The humic substances (HS) are important to aquatic ecosystems. In this study we
investigated the kinetics and molecular variations of dissolved fulvic acids (FA) and
humic acids (HA) formed from aquatic macrophytes ...
Variação espacial e temporal da diversidade e biomassa da comunidade zooplanctônica do reservatório da UHE de Furnas-MG, Brasil
(Universidade Federal de São Carlos, 2011-02-11)
The UHE Furnas Reservir is located in the state of Minas Gerais and it was built for hydroelectricity generation in 1963, although it is present used for multiple purposes. The zooplankton communities of freshwaters are ...
Dinâmica de população de Tapirira guianensis AUBL. (Anacardiaceae), em áreas de restinga e cerradão do Estado de São Paulo
(Universidade Federal de São Carlos, 2010-03-03)
The situation of a population can only be assessed through demographic studies, considering its dynamics in terms of changes on fecundity, recruitment and mortality of individuals. Considering the peculiarities of the ...