Article
Application of the biotic index IBE-IOC for water quality assessment in wadeable streams in south-east Brazil
Uso do índice biótico IBE-IOC para a avaliação da qualidade da água de riachos no sudeste do Brasil
Registro en:
MUGNAI, Riccardo; et al. Application of the biotic index IBE-IOC for water quality assessment in wadeable streams in south-east Brazil. Acta Limnologica Brasiliensia, v. 23, n.1, p. 74-85, 2011.
2179-975X
10.4322/actalb.2011.021 1.
Autor
Mugnai, Riccardo
Buss, Daniel Forsin
Oliveira, Renata Bley
Sanfins, Cristiane
Carvalho, Alcimar do Lago
Baptista, Darcilio Fernandes
Resumen
Aim: This work presents the results of the first water quality assessment using
the biotic index Índice Biótico Estendido – Instituto Oswaldo Cruz (IBE-IOC) for 1st to
4th order streams in the Serra dos Órgãos region, Rio de Janeiro State, Brazil. The aims
were to evaluate the sensitivity of IBE-IOC, verifying its ability to assess anthropogenic
impacts over the stream gradient and along the year; Methods: The sensitivity of the
index was evaluated according to the degree of interquartile overlap in Box-and-Whisker
plots; Results: The index is able to distinguish different types of environmental integrity
and different impacts by deforestation and organic pollution; Conclusions: Our results
supported the recommendation of IBE-IOC as a useful tool for water quality assessment
of wadeable streams in this region.