Phytoplankton community dynamic detection from the chlorophyll-specific absorption coefficient in productive inland waters

Detalhes bibliográficos
Autor(a) principal: Watanabe,Fernanda Sayuri Yoshino
Data de Publicação: 2017
Outros Autores: Alcântara,Enner Herenio de, Rodrigues,Thanan Walesza Pequeno, Bernardo,Nariane Marselhe Ribeiro, Rotta,Luiz Henrique da Silva, Imai,Nilton Nobuhiro
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=S2179-975X2017000100313
Resumo: Abstract Aim: In this research, we investigated the spectral variability of the specific phytoplankton absorption coefficient, a*φ, measured in a tropical meso-to-hypertrophic reservoir, aiming to find spectral features associated with the chlorophyll-a (chla) and other accessory pigments present in different phytoplankton species. Methods To accomplish this research, two fieldworks were carried out in different seasons in order to report a high bio-optical variation. Phytoplankton absorption coefficient, aφ, and chla concentration were measured in laboratory to estimate a*φ. Results The outcomes have indicated that there is a remarkable phytoplankton community dynamic as spatially as seasonally. Chla absorption features were well-defined at 440 nm and 675 nm. Conclusions All the a*φ spectra exhibited the absorption peak around 630 nm associated with phycocyanin pigment present in cyanobacteria. Some spectra have shown a peak at about 460 nm, which is related to chlorophyll b and chlorophyll c (chlb and chlc, respectively) found in different phytoplankton species. In turn, absorption features of carotenoids around 490 nm also were identified, however, well defined just in curves measured in austral autumn. Such spectral features are found in phytoplankton groups already identified in the study area such as Chlorophyceae, Bacillariophyceae, Cyanophyceae, Conjugatophyceae, Chrysophyceae, among others. We expect that the results are useful in researches about remote sensing of phytoplankton and eutrophication in reservoirs.
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spelling Phytoplankton community dynamic detection from the chlorophyll-specific absorption coefficient in productive inland watersinherent optical propertiesinland watersspectral featuresalgal bloom Abstract Aim: In this research, we investigated the spectral variability of the specific phytoplankton absorption coefficient, a*φ, measured in a tropical meso-to-hypertrophic reservoir, aiming to find spectral features associated with the chlorophyll-a (chla) and other accessory pigments present in different phytoplankton species. Methods To accomplish this research, two fieldworks were carried out in different seasons in order to report a high bio-optical variation. Phytoplankton absorption coefficient, aφ, and chla concentration were measured in laboratory to estimate a*φ. Results The outcomes have indicated that there is a remarkable phytoplankton community dynamic as spatially as seasonally. Chla absorption features were well-defined at 440 nm and 675 nm. Conclusions All the a*φ spectra exhibited the absorption peak around 630 nm associated with phycocyanin pigment present in cyanobacteria. Some spectra have shown a peak at about 460 nm, which is related to chlorophyll b and chlorophyll c (chlb and chlc, respectively) found in different phytoplankton species. In turn, absorption features of carotenoids around 490 nm also were identified, however, well defined just in curves measured in austral autumn. Such spectral features are found in phytoplankton groups already identified in the study area such as Chlorophyceae, Bacillariophyceae, Cyanophyceae, Conjugatophyceae, Chrysophyceae, among others. We expect that the results are useful in researches about remote sensing of phytoplankton and eutrophication in reservoirs.Associação Brasileira de Limnologia2017-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2017000100313Acta Limnologica Brasiliensia v.29 2017reponame:Acta Limnologica Brasiliensia (Online)instname:Associação Brasileira de Limnologia (ABL)instacron:ABL10.1590/s2179-975x0417info:eu-repo/semantics/openAccessWatanabe,Fernanda Sayuri YoshinoAlcântara,Enner Herenio deRodrigues,Thanan Walesza PequenoBernardo,Nariane Marselhe RibeiroRotta,Luiz Henrique da SilvaImai,Nilton Nobuhiroeng2017-10-06T00:00:00Zoai:scielo:S2179-975X2017000100313Revistahttp://www.ablimno.org.br/publiActa.phphttps://old.scielo.br/oai/scielo-oai.php||actalb@rc.unesp.br2179-975X0102-6712opendoar:2017-10-06T00:00Acta Limnologica Brasiliensia (Online) - Associação Brasileira de Limnologia (ABL)false
dc.title.none.fl_str_mv Phytoplankton community dynamic detection from the chlorophyll-specific absorption coefficient in productive inland waters
title Phytoplankton community dynamic detection from the chlorophyll-specific absorption coefficient in productive inland waters
spellingShingle Phytoplankton community dynamic detection from the chlorophyll-specific absorption coefficient in productive inland waters
Watanabe,Fernanda Sayuri Yoshino
inherent optical properties
inland waters
spectral features
algal bloom
title_short Phytoplankton community dynamic detection from the chlorophyll-specific absorption coefficient in productive inland waters
title_full Phytoplankton community dynamic detection from the chlorophyll-specific absorption coefficient in productive inland waters
title_fullStr Phytoplankton community dynamic detection from the chlorophyll-specific absorption coefficient in productive inland waters
title_full_unstemmed Phytoplankton community dynamic detection from the chlorophyll-specific absorption coefficient in productive inland waters
title_sort Phytoplankton community dynamic detection from the chlorophyll-specific absorption coefficient in productive inland waters
author Watanabe,Fernanda Sayuri Yoshino
author_facet Watanabe,Fernanda Sayuri Yoshino
Alcântara,Enner Herenio de
Rodrigues,Thanan Walesza Pequeno
Bernardo,Nariane Marselhe Ribeiro
Rotta,Luiz Henrique da Silva
Imai,Nilton Nobuhiro
author_role author
author2 Alcântara,Enner Herenio de
Rodrigues,Thanan Walesza Pequeno
Bernardo,Nariane Marselhe Ribeiro
Rotta,Luiz Henrique da Silva
Imai,Nilton Nobuhiro
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Watanabe,Fernanda Sayuri Yoshino
Alcântara,Enner Herenio de
Rodrigues,Thanan Walesza Pequeno
Bernardo,Nariane Marselhe Ribeiro
Rotta,Luiz Henrique da Silva
Imai,Nilton Nobuhiro
dc.subject.por.fl_str_mv inherent optical properties
inland waters
spectral features
algal bloom
topic inherent optical properties
inland waters
spectral features
algal bloom
description Abstract Aim: In this research, we investigated the spectral variability of the specific phytoplankton absorption coefficient, a*φ, measured in a tropical meso-to-hypertrophic reservoir, aiming to find spectral features associated with the chlorophyll-a (chla) and other accessory pigments present in different phytoplankton species. Methods To accomplish this research, two fieldworks were carried out in different seasons in order to report a high bio-optical variation. Phytoplankton absorption coefficient, aφ, and chla concentration were measured in laboratory to estimate a*φ. Results The outcomes have indicated that there is a remarkable phytoplankton community dynamic as spatially as seasonally. Chla absorption features were well-defined at 440 nm and 675 nm. Conclusions All the a*φ spectra exhibited the absorption peak around 630 nm associated with phycocyanin pigment present in cyanobacteria. Some spectra have shown a peak at about 460 nm, which is related to chlorophyll b and chlorophyll c (chlb and chlc, respectively) found in different phytoplankton species. In turn, absorption features of carotenoids around 490 nm also were identified, however, well defined just in curves measured in austral autumn. Such spectral features are found in phytoplankton groups already identified in the study area such as Chlorophyceae, Bacillariophyceae, Cyanophyceae, Conjugatophyceae, Chrysophyceae, among others. We expect that the results are useful in researches about remote sensing of phytoplankton and eutrophication in reservoirs.
publishDate 2017
dc.date.none.fl_str_mv 2017-01-01
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=S2179-975X2017000100313
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2017000100313
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/s2179-975x0417
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.29 2017
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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