Efeito de um episódio de chuva atípica sobre a comunidade de macroinvertebrados bentônicos em um barramento hidrelétrico no cerrado

Abstract

This study evaluated the temporal distribution of macroinvertebrate community relating one year of normal rainfall (2010) and one year of atypical rainfall (2014), in order to investigate the changes in the composition and structure of benthic macroinvertebrate communities in a hydropower project reservoir in a rain atypical scenario. The study was conducted in the same sampling area and sampling sites in the years 2010 and 2014, at the reservoir of Nova Ponte Hydroelectric Plant, located in the Triangulo Mineiro region, in Nova Ponte, River Basin Araguari, by using benthic macroinvertebrates as bioindicators in the environmental assessment. The results showed a low abundance and diversity of related organisms in 2014 year of atypical rain. The areas around the reservoir showed changes according to the use and occupation of land. However, human activities have tightly changing the water resources, interfering with the communities that live there.