Phytoplankton, Trophic State and Ecological Potential in reservoirs in the State of São Paulo, Brazil
This study evaluated the ecological potential of reservoirs in the Brazilian state of São Paulo, having phytoplankton as a biological quality element. Integrated water column sampling was carried out in the dam, and in the intermediate and fluvial zones of the Igaratá, Atibainha, Paiva Castro, Rio G...
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Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHi)
2019-11-01
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doaj-99ee09b33c7843f49eb40814c87564b02020-11-25T01:19:09ZengInstituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHi)Revista Ambiente & Água1980-993X2019-11-0114511210.4136/ambi-agua.2428Phytoplankton, Trophic State and Ecological Potential in reservoirs in the State of São Paulo, BrazilEduardo Henrique Costa Rodrigues0Aline Martins Vicentin1Leila dos Santos Machado2Marcelo Luiz Martins Pompêo3Viviane Moschini Carlos4Instituto de Ciência e Tecnologia, Programa de Pós-Graduação em Ciências Ambientais, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Avenida Três de Março, n° 511, CEP 18087-180, Sorocaba, SP, Brazil. Instituto de Ciência e Tecnologia, Programa de Pós-Graduação em Ciências Ambientais, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Avenida Três de Março, n° 511, CEP 18087-180, Sorocaba, SP, Brazil. Instituto de Ciência e Tecnologia, Departamento de Engenharia Ambiental, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Avenida Três de Março, n° 511, CEP 18087-180, Sorocaba, SP, Brazil. Instituto de Biociências (IB), Programa de Pós-Graduação em Ecologia, Departamento de Ecologia, Universidade de São Paulo (USP), Rua do Matão, Travessa 14, nº 321, CEP 05508-000, São Paulo, SP, Brazil. Instituto de Ciência e Tecnologia, Departamento de Engenharia Ambiental, Universidade Estadual Paulista "Júlio de Mesquita Filho" (UNESP), Avenida Três de Março, n° 511, CEP 18087-180, Sorocaba, SP, Brazil. This study evaluated the ecological potential of reservoirs in the Brazilian state of São Paulo, having phytoplankton as a biological quality element. Integrated water column sampling was carried out in the dam, and in the intermediate and fluvial zones of the Igaratá, Atibainha, Paiva Castro, Rio Grande, Itupararanga, Broa, Barra Bonita, Guarapiranga and Salto Grande reservoirs in July 2015. Physico-chemical and biological parameters were analyzed in all environments. The phytoplankton was analyzed under an inverted microscope, and measurements of density, diversity, equitability and dominance were determined. The data was ordered using PCA and CCA analysis. The ecological potential of the reservoirs was determined through the evenness index. The electrical conductivity, nitrate, nitrite and orthophosphate were higher in the more eutrophic reservoirs: Salto Grande, Barra Bonita, Guarapiranga and Rio Grande. A trophic gradient was observed among the sampling points, suggesting a conservation spectrum. There was dominance of cyanobacteria in the eutrophic reservoirs associated with low diversity and high dominance. The total density was correlated with TP, TN, and pH. A divergent relationship between the trophic state index and the evenness index was observed. The Atibainha, Itupararanga, Broa, Barra Bonita and Salto Grande reservoirs were classified as water bodies of very poor ecological quality (Bad). The evenness index seems to be a good alternative to the biomonitoring of the studied reservoirs.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1980-993X2019000500313&lng=pt&nrm=iso&tlng=eneutrophicationpollutionwater quality |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Eduardo Henrique Costa Rodrigues Aline Martins Vicentin Leila dos Santos Machado Marcelo Luiz Martins Pompêo Viviane Moschini Carlos |
spellingShingle |
Eduardo Henrique Costa Rodrigues Aline Martins Vicentin Leila dos Santos Machado Marcelo Luiz Martins Pompêo Viviane Moschini Carlos Phytoplankton, Trophic State and Ecological Potential in reservoirs in the State of São Paulo, Brazil Revista Ambiente & Água eutrophication pollution water quality |
author_facet |
Eduardo Henrique Costa Rodrigues Aline Martins Vicentin Leila dos Santos Machado Marcelo Luiz Martins Pompêo Viviane Moschini Carlos |
author_sort |
Eduardo Henrique Costa Rodrigues |
title |
Phytoplankton, Trophic State and Ecological Potential in reservoirs in the State of São Paulo, Brazil |
title_short |
Phytoplankton, Trophic State and Ecological Potential in reservoirs in the State of São Paulo, Brazil |
title_full |
Phytoplankton, Trophic State and Ecological Potential in reservoirs in the State of São Paulo, Brazil |
title_fullStr |
Phytoplankton, Trophic State and Ecological Potential in reservoirs in the State of São Paulo, Brazil |
title_full_unstemmed |
Phytoplankton, Trophic State and Ecological Potential in reservoirs in the State of São Paulo, Brazil |
title_sort |
phytoplankton, trophic state and ecological potential in reservoirs in the state of são paulo, brazil |
publisher |
Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHi) |
series |
Revista Ambiente & Água |
issn |
1980-993X |
publishDate |
2019-11-01 |
description |
This study evaluated the ecological potential of reservoirs in the Brazilian state of São Paulo, having phytoplankton as a biological quality element. Integrated water column sampling was carried out in the dam, and in the intermediate and fluvial zones of the Igaratá, Atibainha, Paiva Castro, Rio Grande, Itupararanga, Broa, Barra Bonita, Guarapiranga and Salto Grande reservoirs in July 2015. Physico-chemical and biological parameters were analyzed in all environments. The phytoplankton was analyzed under an inverted microscope, and measurements of density, diversity, equitability and dominance were determined. The data was ordered using PCA and CCA analysis. The ecological potential of the reservoirs was determined through the evenness index. The electrical conductivity, nitrate, nitrite and orthophosphate were higher in the more eutrophic reservoirs: Salto Grande, Barra Bonita, Guarapiranga and Rio Grande. A trophic gradient was observed among the sampling points, suggesting a conservation spectrum. There was dominance of cyanobacteria in the eutrophic reservoirs associated with low diversity and high dominance. The total density was correlated with TP, TN, and pH. A divergent relationship between the trophic state index and the evenness index was observed. The Atibainha, Itupararanga, Broa, Barra Bonita and Salto Grande reservoirs were classified as water bodies of very poor ecological quality (Bad). The evenness index seems to be a good alternative to the biomonitoring of the studied reservoirs. |
topic |
eutrophication pollution water quality |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1980-993X2019000500313&lng=pt&nrm=iso&tlng=en |
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