Impacts of dam construction on the macroinvertebrate community in the Poxin-Açú, in a tropical region

Revista Ambiente & Água

Anderson Nascimento do Vasco¹  Amanda Vaz de Souza Oliveira¹  Geovane Alves Feitosa¹  Agripino Emanuel Oliveira Alves¹  Talita Guimarães Araújo-Piovezan²  José Oliveira Dantas² 

[1] Departamento de Agroecologia. Instituto Federal de Educação, Ciência e Tecnologia de Sergipe (IFS),Rodovia BR 101, Km 96, s/n, CEP: 49100-000, São Cristóvão, SE, Brazil. ;Departamento de Biologia. Instituto Federal de Educação, Ciência e Tecnologia de Sergipe (IFS),Rodovia BR 101, Km 96, s/n, CEP: 49100-000, São Cristóvão, SE, Brazil. ;

关键词: bioindicators;    dam impacts;    environmental monitoring;   

DOI  :  10.4136/ambi-agua.2704

来源: DOAJ

【 摘 要 】

River regularization plays an important role in socio economic development. However, it also modifies the natural flow system of the river and its biotic and abiotic characteristics, causing significant impacts on rivers. To evaluate the impacts on the macroinvertebrate community caused by dam construction on the Poxim-Açú River, metrics of composition and community structure of the macroinvertebrates were analyzed, as well as ecological and biological traits of the region. Macroinvertebrates were collected at three sites located downstream the dam, before (2013) and after (2015) dam construction. The water quality was classified as “good” to “excellent” according to the biotics indices. The alterations of the flow regime of the river after the dam construction influenced the macroinvertebrate communities, modifying their diversity, equitability, richness, and the number of individuals.

【 授权许可】

Unknown