Macroinvertebrados bentônicos e parâmetros físico-químicos como indicadores da qualidade da água de microbacias utilizadas para o abastecimento público da região metropolitana de Goiânia
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2014-08-28
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Universidade Federal de Goiás
Resumo
Maintaining quality of fresh water, sanitary and environmental aspects, is essential. Once the
environmental degradation caused by human activities is more intense. In this direction, the
main objective of this study was to evaluate the water quality and environmental conditions of
stretches of watershed located in watersheds that are used for public water supply of the cities
of Trindade (Bacia Hidrográfica do Ribeirão Arrozal), Goianápolis (Bacia Hidrográfica do
Ribeirão Sozinha), Terezópolis (Bacia Hidrográfica do Córrego dos Macacos) and Nerópolis
(Bacia Hidrográfica do Córrego Água Branca), cities that compose the Metropolitan Region
of Goiânia. To this end this research was organized in articles divided into three chapters. The
first chapter corresponds to characterize the environmental conditions of the Bacia
Hidrográfica do Ribeirão Sozinha. This chapter have been identified and related the main
impacts in the watershed and in rivers, furthermore, were verifying the use and occupation of
the soil that could cause potential impacts on water resources with the objective to evaluate
the combined use of three methodologies the survey of the environmental status of this basin.
The second chapter corresponds to functional trophic categorization community of aquatic
macroinvertebrates and characterization of ecological conditions of river reaches that
compose the four watersheds listed above. The third chapter discusses the evaluation of water
quality and assessment of environmental conditions, of the same river reaches studied in the
previous article, by evaluating the structure of the macroinvertebrate community, the
implementation of a protocol for rapid assessment of habitat conditions evaluation and
physico-chemical parameters of water. Moreover, the latter paper aims to inform about the
organization of macroinvertebrates front environmental conditions during periods the dry and
rain season. The results of the evaluation of ecological conditions indicated that all
watersheds studied in this study are suffering or have suffered from human impacts from
agricultural activities. This fact may be affecting the water quality of water sources that
supply the Trindade, Goianápolis and Nerópolis, because some physico-chemical parameters
such as the total nitrogen and the total phosphorus were not in conformity with limits for
Class 2, and were within the limit that is recommended for class 4, according to CONAMA
resolution 357/2005. The assessment of water quality through of aquatic macroinvertebrates
indicated good quality in all segments surveyed. Assessment of trophic groups allowed a
better understanding of how macroinvertebrates were organized against the environmental
conditions of each region. The seasonal evaluation of macroinvertebrate community indicated
that the richness and abundance did not vary significantly between seasons.
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SANTOS, Karina Pinheiro dos. Macroinvertebrados bentônicos e parâmetros físico-químicos como indicadores da qualidade da água de microbacias utilizadas para o abastecimento público da região metropolitana de Goiânia. 2014. 87 f. Dissertação (Mestrado em Engenharia do Meio Ambiente) - Universidade Federal de Goiás, Goiânia, 2014.