Proposal of a trophic state index in semiarid reservoirs using data of the Banabuiú Basin, state of Ceará, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Acta Limnologica Brasiliensia (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2019000100322 |
Resumo: | Abstract Aim This study aimed to develop a Trophic State Index that simulates the cumulative impact in 18 reservoirs in the Banabuiú basin, located in the semiarid region of the State of Ceará. Methods Analyses were made for physical (temperature, transparency and turbidity), chemical (dissolved oxygen, pH and total phosphorus) and biological (chlorophyll-a) variables as indicators of reservoir water quality. Data used in this study were made available by the Water Resources Management Company of the State of Ceará (COGERH), in the years between 2010 and 2013. An adaptation was developed for trophic classification (TSISA), incorporating the three most relevant variables for trophic evaluation, total phosphorus, chlorophyll-a and transparency. For interpreting the data set, we used multivariate statistics as Hierarchical Cluster Analysis (HCA) and Factor Analysis/Principal Component Analysis (PCA). Results The similarity of Banabuiú basin reservoirs in relation to water eutrophication gave rise to three distinct groups: I, II and III consisting of nine, four and five reservoirs, respectively. The calculation of minimum and maximum values and percentiles of the correlated parameters defined four classes of trophic state; it was observed that the reservoirs in the group I showed trophic classification predominantly between oligotrophic (54.7%), mesotrophic (30.2%), group II, eutrophic (44.4%) and hypertrophic (33.3%) and those of the group III, eutrophic (39.1%) and hypertrophic (60.9%). Conclusions The TSISA presented a simple methodology and easy interpretation of the data, grounded in the quality of water of reservoirs located in the semiarid region of Ceará. Thus, its use can contribute for the reduction of errors in the inference of the trophic state of reservoirs in this region and should be considered as an indicator for more detailed studies. |
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Proposal of a trophic state index in semiarid reservoirs using data of the Banabuiú Basin, state of Ceará, Brazilindexeutrophicationwater qualityCeará semiarid regionAbstract Aim This study aimed to develop a Trophic State Index that simulates the cumulative impact in 18 reservoirs in the Banabuiú basin, located in the semiarid region of the State of Ceará. Methods Analyses were made for physical (temperature, transparency and turbidity), chemical (dissolved oxygen, pH and total phosphorus) and biological (chlorophyll-a) variables as indicators of reservoir water quality. Data used in this study were made available by the Water Resources Management Company of the State of Ceará (COGERH), in the years between 2010 and 2013. An adaptation was developed for trophic classification (TSISA), incorporating the three most relevant variables for trophic evaluation, total phosphorus, chlorophyll-a and transparency. For interpreting the data set, we used multivariate statistics as Hierarchical Cluster Analysis (HCA) and Factor Analysis/Principal Component Analysis (PCA). Results The similarity of Banabuiú basin reservoirs in relation to water eutrophication gave rise to three distinct groups: I, II and III consisting of nine, four and five reservoirs, respectively. The calculation of minimum and maximum values and percentiles of the correlated parameters defined four classes of trophic state; it was observed that the reservoirs in the group I showed trophic classification predominantly between oligotrophic (54.7%), mesotrophic (30.2%), group II, eutrophic (44.4%) and hypertrophic (33.3%) and those of the group III, eutrophic (39.1%) and hypertrophic (60.9%). Conclusions The TSISA presented a simple methodology and easy interpretation of the data, grounded in the quality of water of reservoirs located in the semiarid region of Ceará. Thus, its use can contribute for the reduction of errors in the inference of the trophic state of reservoirs in this region and should be considered as an indicator for more detailed studies.Associação Brasileira de Limnologia2019-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2019000100322Acta Limnologica Brasiliensia v.31 2019reponame:Acta Limnologica Brasiliensia (Online)instname:Associação Brasileira de Limnologia (ABL)instacron:ABL10.1590/s2179-975x12517info:eu-repo/semantics/openAccessRolim,Hosineide de OliveiraNunes,Ana Bárbara de AraújoNascimento,Francisco Jonathan de Sousa CunhaChaves,Jarbas Rodrigueseng2019-10-16T00:00:00Zoai:scielo:S2179-975X2019000100322Revistahttp://www.ablimno.org.br/publiActa.phphttps://old.scielo.br/oai/scielo-oai.php||actalb@rc.unesp.br2179-975X0102-6712opendoar:2019-10-16T00:00Acta Limnologica Brasiliensia (Online) - Associação Brasileira de Limnologia (ABL)false |
dc.title.none.fl_str_mv |
Proposal of a trophic state index in semiarid reservoirs using data of the Banabuiú Basin, state of Ceará, Brazil |
title |
Proposal of a trophic state index in semiarid reservoirs using data of the Banabuiú Basin, state of Ceará, Brazil |
spellingShingle |
Proposal of a trophic state index in semiarid reservoirs using data of the Banabuiú Basin, state of Ceará, Brazil Rolim,Hosineide de Oliveira index eutrophication water quality Ceará semiarid region |
title_short |
Proposal of a trophic state index in semiarid reservoirs using data of the Banabuiú Basin, state of Ceará, Brazil |
title_full |
Proposal of a trophic state index in semiarid reservoirs using data of the Banabuiú Basin, state of Ceará, Brazil |
title_fullStr |
Proposal of a trophic state index in semiarid reservoirs using data of the Banabuiú Basin, state of Ceará, Brazil |
title_full_unstemmed |
Proposal of a trophic state index in semiarid reservoirs using data of the Banabuiú Basin, state of Ceará, Brazil |
title_sort |
Proposal of a trophic state index in semiarid reservoirs using data of the Banabuiú Basin, state of Ceará, Brazil |
author |
Rolim,Hosineide de Oliveira |
author_facet |
Rolim,Hosineide de Oliveira Nunes,Ana Bárbara de Araújo Nascimento,Francisco Jonathan de Sousa Cunha Chaves,Jarbas Rodrigues |
author_role |
author |
author2 |
Nunes,Ana Bárbara de Araújo Nascimento,Francisco Jonathan de Sousa Cunha Chaves,Jarbas Rodrigues |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Rolim,Hosineide de Oliveira Nunes,Ana Bárbara de Araújo Nascimento,Francisco Jonathan de Sousa Cunha Chaves,Jarbas Rodrigues |
dc.subject.por.fl_str_mv |
index eutrophication water quality Ceará semiarid region |
topic |
index eutrophication water quality Ceará semiarid region |
description |
Abstract Aim This study aimed to develop a Trophic State Index that simulates the cumulative impact in 18 reservoirs in the Banabuiú basin, located in the semiarid region of the State of Ceará. Methods Analyses were made for physical (temperature, transparency and turbidity), chemical (dissolved oxygen, pH and total phosphorus) and biological (chlorophyll-a) variables as indicators of reservoir water quality. Data used in this study were made available by the Water Resources Management Company of the State of Ceará (COGERH), in the years between 2010 and 2013. An adaptation was developed for trophic classification (TSISA), incorporating the three most relevant variables for trophic evaluation, total phosphorus, chlorophyll-a and transparency. For interpreting the data set, we used multivariate statistics as Hierarchical Cluster Analysis (HCA) and Factor Analysis/Principal Component Analysis (PCA). Results The similarity of Banabuiú basin reservoirs in relation to water eutrophication gave rise to three distinct groups: I, II and III consisting of nine, four and five reservoirs, respectively. The calculation of minimum and maximum values and percentiles of the correlated parameters defined four classes of trophic state; it was observed that the reservoirs in the group I showed trophic classification predominantly between oligotrophic (54.7%), mesotrophic (30.2%), group II, eutrophic (44.4%) and hypertrophic (33.3%) and those of the group III, eutrophic (39.1%) and hypertrophic (60.9%). Conclusions The TSISA presented a simple methodology and easy interpretation of the data, grounded in the quality of water of reservoirs located in the semiarid region of Ceará. Thus, its use can contribute for the reduction of errors in the inference of the trophic state of reservoirs in this region and should be considered as an indicator for more detailed studies. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2019000100322 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2019000100322 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/s2179-975x12517 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Associação Brasileira de Limnologia |
publisher.none.fl_str_mv |
Associação Brasileira de Limnologia |
dc.source.none.fl_str_mv |
Acta Limnologica Brasiliensia v.31 2019 reponame:Acta Limnologica Brasiliensia (Online) instname:Associação Brasileira de Limnologia (ABL) instacron:ABL |
instname_str |
Associação Brasileira de Limnologia (ABL) |
instacron_str |
ABL |
institution |
ABL |
reponame_str |
Acta Limnologica Brasiliensia (Online) |
collection |
Acta Limnologica Brasiliensia (Online) |
repository.name.fl_str_mv |
Acta Limnologica Brasiliensia (Online) - Associação Brasileira de Limnologia (ABL) |
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||actalb@rc.unesp.br |
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1754212637715988480 |