Autor(es): Costa, Brenda Natasha Souza ; Pinheiro, Samara Cristina Campelo ; Amado, L?lian Lund ; Lima, Marcelo de Oliveira
Data: 2017
Origem: Oasisbr
Assunto(s): Zoopl?ncton; ?guas de Superf?cie; An?lise da ?gua; Ecossistema Amaz?nico; Regi?o Amaz?nica (BR)
Federal University of Par?. Postgraduate Program in Aquatic Ecology and Fish. Bel?m, PA, Brazil / Minist?rio da Sa?de. Secretaria de Vigil?ncia em Sa?de. Instituto Evandro Chagas. Ananindeua, PA, Brasil.
Minist?rio da Sa?de. Secretaria de Vigil?ncia em Sa?de. Instituto Evandro Chagas. Ananindeua, PA, Brasil.
Federal University of Par?. Postgraduate Program in Aquatic Ecology and Fish. Bel?m, PA, Brazil.
Federal University of Par?. Postgraduate Program in Aquatic Ecology and Fish. Bel?m, PA, Brazil / Minist?rio da Sa?de. Secretaria de Vigil?ncia em Sa?de. Instituto Evandro Chagas. Ananindeua, PA, Brasil.
Abstract: Recent studies have assessed the impact of the discharge of untreated domestic and industrial effluents on aquatic ecosystems. In the 1980s, large industrial factories were set up in the municipality of Barcarena, Amazon, Brazil; however, this was not accompanied by investments to improve basic sanitation and housing structures in the region, resulting in deterioration of the surface water quality. The main aims of this study were to characterize the zooplankton community of surface water to elucidate the influence of unregulated territorial occupation and industrial development on ecosystem degradation of three rivers located near the industrial and port area of Barcarena. The physico-chemical and microbiological parameters linked to water quality assessment were also analyzed. In each river, three sites were selected for sampling, which was performed quarterly in 2012. The zooplankton community of the three rivers comprised 149 taxa, and the density of zooplankton varied among rivers; Arapiranga River had the lowest values, followed by Curuper?-Dend? and Murucupi Rivers. IndVal analyses show that Keratella lenzi and Anuraeopsis sp1 have elevated fidelity and specificity to the Curuper?-Dend? and Murucupi Rivers, both of which are strongly affected by anthropogenic forces. Difflugia distenda and Difflugia sp7 were associated with Arapiranga River, which has a well-conserved ecosystem.
