Avaliação limnológica como indicadora da situação ambiental da sub-bacia do Rio Poxim em Sergipe

• Ano de defesa: 2011
• Autor(a) principal: Pereira, Ana Paula Sousa
• Orientador(a): Mello Júnior, Arisvaldo Vieira
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Sergipe
• Programa de Pós-Graduação: Pós-Graduação em Agroecossistemas
• País: BR
• Palavras-chave em Português: Bacia hidrográfica; Qualidade de água; Biomonitoramento
• Palavras-chave em Inglês: Watershed; Water quality; Biomonitoring
• Área do conhecimento CNPq: CNPQ::CIENCIAS AGRARIAS::AGRONOMIA
• Link de acesso: https://ri.ufs.br/handle/riufs/6619

Water resources are increasingly vulnerable to degradation caused by rapid growth of Brazilian cities, observing a reduction in the quality and quantity of available water sources and water use conflicts. This fact, also occurs in the Rio Poxim Sergipe, important water source for a large number of rural properties for both human and animal consumption and for irrigation, and more recently, for industrial use, also supplies the capital, Aracaju, the fundamental economic importance in Sergipe. Currently, the most cause of scarcity of water resources, especially in large urban centers, is due to degradation of water quality, which is due to the inadequate release of industrial effluents, sewage and inadequate agricultural management in the basin. Within this context, studies of watersheds have been prominent among the environmental research developed within a holistic view of the environment, therefore to obtain a better understanding of aquatic ecosystems is necessary to evaluate the watershed where it is inserted into the body of water, integrating and interacting, while the aquatic environment to land. Watersheds are landscape or environmental units in which all the natural elements or humans relate effectively inseparable. This study aims to perform a limnological assessment in Rio Poxim to know the relations of cause and effect relationship between the physical and chemical parameters of water quality and biological community exists. Measures to detect these changes, such as diversity indices, biotic indices and percentage of indicator organisms have been useful tools for early diagnosis of the quality of aquatic habitats. Given the importance of ecological, economic and social development of aquatic ecosystems, monitoring of water quality aims to preserve its multiple uses and subsidies to promote management actions and environmental recovery to benefit and protect water quality, so ensure the integrity of natural resources and their sustainable exploitation.