Aplicação do Protocolo de Avaliação Rápida de Rios na bacia hidrográfica do Córrego Bandeira, Campo Grande, MS

Abstract

The objective of this study was to apply a Rapid River Assessment Protocol - PAR in nine stretches of the Córrego Bandeira Hydrographic Basin, Campo Grande - MS, and compare the results obtained with the averages of the IQA (Water Quality Index) of 2023, made available by the Clean Stream Program of the Municipality of Campo Grande. This hydrographic basin is formed by the Córrego Bandeira and its tributaries, the Portinho Pache and Cabaça streams. The Rapid Habitat Diversity Assessment Protocol proposed by Callisto et al. (2002) was used, where 22 parameters were evaluated and scored for each stretch. Only one of the studied stretches (the Portinho Pache Stream) was classified as “natural”. The two stretches of the Cabaça Stream were considered “altered”. In the Córrego Bandeira, three “altered” and three “impacted” stretches were found. The Clean Stream Program defined the water quality at all collection points in the basin as “good”. Considering evidence of water pollution observed through the PAR (such as the presence of solid waste on the banks of the streams, the smell of sewage near the mouth and a reddish color in one of the sections), it is concluded that the monitoring of the Clean Stream Program is not sufficiently robust to detect problems with water quality. The use of the Rapid River Assessment Protocol is suggested as a complementary instrument in monitoring surface waters in Campo Grande - MS, since it is recognized as low cost and easy to apply.