Detecção da dinâmica de comunidade fitoplanctônica a partir do coeficiente de absorção específico da clorofila em águas interiores produtivas

Detalhes bibliográficos
Autor(a) principal: Watanabe, Fernanda Sayuri Yoshino [UNESP]
Data de Publicação: 2017
Outros Autores: de Alcântara, Enner Herenio [UNESP], Rodrigues, Thanan Walesza Pequeno [UNESP], Bernardo, Nariane Marselhe Ribeiro [UNESP], Rotta, Luiz Henrique da Silva [UNESP], Imai, Nilton Nobuhiro [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/S2179-975X0417
http://hdl.handle.net/11449/175348
Resumo: 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 Detecção da dinâmica de comunidade fitoplanctônica a partir do coeficiente de absorção específico da clorofila em águas interiores produtivasPhytoplankton community dynamic detection from the chlorophyll-specific absorption coefficient in productive inland watersAlgal bloomInherent optical propertiesInland watersSpectral featuresAim: 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.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Departamento de Cartografia Faculdade de Ciências e Tecnologia – FCT Universidade Estadual Paulista – UNESP, Rua Roberto Simonsen, 305Departamento de Engenharia Ambiental Instituto de Ciências e Tecnologia – ICT Universidade Estadual Paulista – UNESP, Rodovia Presidente Dutra, Km 137.8Departamento de Cartografia Faculdade de Ciências e Tecnologia – FCT Universidade Estadual Paulista – UNESP, Rua Roberto Simonsen, 305Departamento de Engenharia Ambiental Instituto de Ciências e Tecnologia – ICT Universidade Estadual Paulista – UNESP, Rodovia Presidente Dutra, Km 137.8FAPESP: 2012/19821-1FAPESP: 2013/09045-7FAPESP: 2015/18525-8FAPESP: 2015/21586-9CNPq: 400881/2013-6CNPq: 472131/2012-5CNPq: 482605/2013-8Universidade Estadual Paulista (Unesp)Watanabe, Fernanda Sayuri Yoshino [UNESP]de Alcântara, Enner Herenio [UNESP]Rodrigues, Thanan Walesza Pequeno [UNESP]Bernardo, Nariane Marselhe Ribeiro [UNESP]Rotta, Luiz Henrique da Silva [UNESP]Imai, Nilton Nobuhiro [UNESP]2018-12-11T17:15:25Z2018-12-11T17:15:25Z2017-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://dx.doi.org/10.1590/S2179-975X0417Acta Limnologica Brasiliensia, v. 29.0102-6712http://hdl.handle.net/11449/17534810.1590/S2179-975X0417S2179-975X20170001003132-s2.0-85031495951S2179-975X2017000100313.pdf298577110250533066913103944104900000-0003-0516-05670000-0002-8077-2865Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengActa Limnologica Brasiliensia0,280info:eu-repo/semantics/openAccess2024-06-18T15:01:26Zoai:repositorio.unesp.br:11449/175348Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:34:09.199824Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Detecção da dinâmica de comunidade fitoplanctônica a partir do coeficiente de absorção específico da clorofila em águas interiores produtivas
Phytoplankton community dynamic detection from the chlorophyll-specific absorption coefficient in productive inland waters
title Detecção da dinâmica de comunidade fitoplanctônica a partir do coeficiente de absorção específico da clorofila em águas interiores produtivas
spellingShingle Detecção da dinâmica de comunidade fitoplanctônica a partir do coeficiente de absorção específico da clorofila em águas interiores produtivas
Watanabe, Fernanda Sayuri Yoshino [UNESP]
Algal bloom
Inherent optical properties
Inland waters
Spectral features
title_short Detecção da dinâmica de comunidade fitoplanctônica a partir do coeficiente de absorção específico da clorofila em águas interiores produtivas
title_full Detecção da dinâmica de comunidade fitoplanctônica a partir do coeficiente de absorção específico da clorofila em águas interiores produtivas
title_fullStr Detecção da dinâmica de comunidade fitoplanctônica a partir do coeficiente de absorção específico da clorofila em águas interiores produtivas
title_full_unstemmed Detecção da dinâmica de comunidade fitoplanctônica a partir do coeficiente de absorção específico da clorofila em águas interiores produtivas
title_sort Detecção da dinâmica de comunidade fitoplanctônica a partir do coeficiente de absorção específico da clorofila em águas interiores produtivas
author Watanabe, Fernanda Sayuri Yoshino [UNESP]
author_facet Watanabe, Fernanda Sayuri Yoshino [UNESP]
de Alcântara, Enner Herenio [UNESP]
Rodrigues, Thanan Walesza Pequeno [UNESP]
Bernardo, Nariane Marselhe Ribeiro [UNESP]
Rotta, Luiz Henrique da Silva [UNESP]
Imai, Nilton Nobuhiro [UNESP]
author_role author
author2 de Alcântara, Enner Herenio [UNESP]
Rodrigues, Thanan Walesza Pequeno [UNESP]
Bernardo, Nariane Marselhe Ribeiro [UNESP]
Rotta, Luiz Henrique da Silva [UNESP]
Imai, Nilton Nobuhiro [UNESP]
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Watanabe, Fernanda Sayuri Yoshino [UNESP]
de Alcântara, Enner Herenio [UNESP]
Rodrigues, Thanan Walesza Pequeno [UNESP]
Bernardo, Nariane Marselhe Ribeiro [UNESP]
Rotta, Luiz Henrique da Silva [UNESP]
Imai, Nilton Nobuhiro [UNESP]
dc.subject.por.fl_str_mv Algal bloom
Inherent optical properties
Inland waters
Spectral features
topic Algal bloom
Inherent optical properties
Inland waters
Spectral features
description 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
2018-12-11T17:15:25Z
2018-12-11T17:15:25Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1590/S2179-975X0417
Acta Limnologica Brasiliensia, v. 29.
0102-6712
http://hdl.handle.net/11449/175348
10.1590/S2179-975X0417
S2179-975X2017000100313
2-s2.0-85031495951
S2179-975X2017000100313.pdf
2985771102505330
6691310394410490
0000-0003-0516-0567
0000-0002-8077-2865
url http://dx.doi.org/10.1590/S2179-975X0417
http://hdl.handle.net/11449/175348
identifier_str_mv Acta Limnologica Brasiliensia, v. 29.
0102-6712
10.1590/S2179-975X0417
S2179-975X2017000100313
2-s2.0-85031495951
S2179-975X2017000100313.pdf
2985771102505330
6691310394410490
0000-0003-0516-0567
0000-0002-8077-2865
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Acta Limnologica Brasiliensia
0,280
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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