Análise da estratificação térmica e química no reservatório Acarapé do Meio

Abstract

In this work, it was tried to study the behavior of decisive parameters in the aspects of the water quality of the Reservoir of Acarape do Meio, in the municipal district of Redemption-Ce, through analysis of field data, collected during the years from 2001 to 2006. In aquatic ecosystems with levels of high temperatures (superior to 20°C), there is no need of great temperature differences among the successive layers for the chemical stratification of the column of water to be processed. This phenomenon is frequently observed at tropical and subtropical lakes, where stable beddings are evidenced, even with reduced temperature difference among the layers that form the column of water. In the bottom of this reservoir (depth of 20 m) the medium temperature rotated around 26°C. While in the surface its variation was around 27°C. Like this, it is possible to conclude that this located reservoir in tropical area becomes stratified, even with reduced temperature difference between the epilimnion and the hypolimnion. The results showed although, even if the vertical variation of temperature is not so significant inside the reservoir, there is a strong presence of chemical bedding in the deepest layers of this body of water, confirming what says the literature.