Field evidence of the influence of aquatic macrophytes on water quality in a shallow eutrophic lake over a 13-year period

Detalhes bibliográficos
Autor(a) principal: Albertoni,Edélti Faria
Data de Publicação: 2014
Outros Autores: Palma-Silva,Cleber, Trindade,Claudio Rossano Trindade, Furlanetto,Leonardo Marques
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=S2179-975X2014000200008
Resumo: AIM: The main objective of this work is to describe the changes in water characteristics of a shallow subtropical lake, in periods with and without growing of macrophytes, related to periods of clear-macrophyte dominance and turbid-phytoplankton dominance states. METHODS: The study was conducted in Biguás Lake, in the south coastal plain of Brazil (32° 04&#x27 43" S and 52° 10&#x27 03" W). Samplings were carried out monthly between October 2000 and November 2013. The limnological variables measured in the water column were dissolved oxygen (DO), water temperature, pH, electrical conductivity (EC), chlorophyll-a, total nitrogen (TN), total phosphorous (TP) and suspended material (SM). Data were grouped according to periods with macrophyte growth dominance (MD) and without macrophytes, with phytoplankton dominance (PD), and applied t- tests among TP, TN, Chlorophyll-a and SM. During macrophyte growth we estimated the coverage (%) and biomass variation of plants. RESULTS: Over the 13 years, the lake was well oxygenated, alkaline, and with a temperature variation according to subtropical seasonality. The lower values of all of the limnological variables were verified during periods of macrophyte growth, characterizing periods of clear and turbid waters. CONCLUSIONS: The influence of aquatic macrophytes in improving water quality in this shallow lake during the studied period, reducing nutrient concentrations, chlorophyll-a and suspended material in water, favoring the maintenance of a clear water state, was verified.
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spelling Field evidence of the influence of aquatic macrophytes on water quality in a shallow eutrophic lake over a 13-year periodfloating macrophytessubmerged macrophytesshallow subtropical lakesclear and turbid waterssouthern BrazilAIM: The main objective of this work is to describe the changes in water characteristics of a shallow subtropical lake, in periods with and without growing of macrophytes, related to periods of clear-macrophyte dominance and turbid-phytoplankton dominance states. METHODS: The study was conducted in Biguás Lake, in the south coastal plain of Brazil (32° 04&#x27 43" S and 52° 10&#x27 03" W). Samplings were carried out monthly between October 2000 and November 2013. The limnological variables measured in the water column were dissolved oxygen (DO), water temperature, pH, electrical conductivity (EC), chlorophyll-a, total nitrogen (TN), total phosphorous (TP) and suspended material (SM). Data were grouped according to periods with macrophyte growth dominance (MD) and without macrophytes, with phytoplankton dominance (PD), and applied t- tests among TP, TN, Chlorophyll-a and SM. During macrophyte growth we estimated the coverage (%) and biomass variation of plants. RESULTS: Over the 13 years, the lake was well oxygenated, alkaline, and with a temperature variation according to subtropical seasonality. The lower values of all of the limnological variables were verified during periods of macrophyte growth, characterizing periods of clear and turbid waters. CONCLUSIONS: The influence of aquatic macrophytes in improving water quality in this shallow lake during the studied period, reducing nutrient concentrations, chlorophyll-a and suspended material in water, favoring the maintenance of a clear water state, was verified.Associação Brasileira de Limnologia2014-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2014000200008Acta Limnologica Brasiliensia v.26 n.2 2014reponame:Acta Limnologica Brasiliensia (Online)instname:Associação Brasileira de Limnologia (ABL)instacron:ABL10.1590/S2179-975X2014000200008info:eu-repo/semantics/openAccessAlbertoni,Edélti FariaPalma-Silva,CleberTrindade,Claudio Rossano TrindadeFurlanetto,Leonardo Marqueseng2014-10-09T00:00:00Zoai:scielo:S2179-975X2014000200008Revistahttp://www.ablimno.org.br/publiActa.phphttps://old.scielo.br/oai/scielo-oai.php||actalb@rc.unesp.br2179-975X0102-6712opendoar:2014-10-09T00:00Acta Limnologica Brasiliensia (Online) - Associação Brasileira de Limnologia (ABL)false
dc.title.none.fl_str_mv Field evidence of the influence of aquatic macrophytes on water quality in a shallow eutrophic lake over a 13-year period
title Field evidence of the influence of aquatic macrophytes on water quality in a shallow eutrophic lake over a 13-year period
spellingShingle Field evidence of the influence of aquatic macrophytes on water quality in a shallow eutrophic lake over a 13-year period
Albertoni,Edélti Faria
floating macrophytes
submerged macrophytes
shallow subtropical lakes
clear and turbid waters
southern Brazil
title_short Field evidence of the influence of aquatic macrophytes on water quality in a shallow eutrophic lake over a 13-year period
title_full Field evidence of the influence of aquatic macrophytes on water quality in a shallow eutrophic lake over a 13-year period
title_fullStr Field evidence of the influence of aquatic macrophytes on water quality in a shallow eutrophic lake over a 13-year period
title_full_unstemmed Field evidence of the influence of aquatic macrophytes on water quality in a shallow eutrophic lake over a 13-year period
title_sort Field evidence of the influence of aquatic macrophytes on water quality in a shallow eutrophic lake over a 13-year period
author Albertoni,Edélti Faria
author_facet Albertoni,Edélti Faria
Palma-Silva,Cleber
Trindade,Claudio Rossano Trindade
Furlanetto,Leonardo Marques
author_role author
author2 Palma-Silva,Cleber
Trindade,Claudio Rossano Trindade
Furlanetto,Leonardo Marques
author2_role author
author
author
dc.contributor.author.fl_str_mv Albertoni,Edélti Faria
Palma-Silva,Cleber
Trindade,Claudio Rossano Trindade
Furlanetto,Leonardo Marques
dc.subject.por.fl_str_mv floating macrophytes
submerged macrophytes
shallow subtropical lakes
clear and turbid waters
southern Brazil
topic floating macrophytes
submerged macrophytes
shallow subtropical lakes
clear and turbid waters
southern Brazil
description AIM: The main objective of this work is to describe the changes in water characteristics of a shallow subtropical lake, in periods with and without growing of macrophytes, related to periods of clear-macrophyte dominance and turbid-phytoplankton dominance states. METHODS: The study was conducted in Biguás Lake, in the south coastal plain of Brazil (32° 04&#x27 43" S and 52° 10&#x27 03" W). Samplings were carried out monthly between October 2000 and November 2013. The limnological variables measured in the water column were dissolved oxygen (DO), water temperature, pH, electrical conductivity (EC), chlorophyll-a, total nitrogen (TN), total phosphorous (TP) and suspended material (SM). Data were grouped according to periods with macrophyte growth dominance (MD) and without macrophytes, with phytoplankton dominance (PD), and applied t- tests among TP, TN, Chlorophyll-a and SM. During macrophyte growth we estimated the coverage (%) and biomass variation of plants. RESULTS: Over the 13 years, the lake was well oxygenated, alkaline, and with a temperature variation according to subtropical seasonality. The lower values of all of the limnological variables were verified during periods of macrophyte growth, characterizing periods of clear and turbid waters. CONCLUSIONS: The influence of aquatic macrophytes in improving water quality in this shallow lake during the studied period, reducing nutrient concentrations, chlorophyll-a and suspended material in water, favoring the maintenance of a clear water state, was verified.
publishDate 2014
dc.date.none.fl_str_mv 2014-06-01
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=S2179-975X2014000200008
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2014000200008
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S2179-975X2014000200008
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.26 n.2 2014
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)
repository.mail.fl_str_mv ||actalb@rc.unesp.br
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