Influence of water volume reduction on the phytoplankton dynamics in a semiarid man-made lake: a comparison of two morphofunctional approaches
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRN |
Texto Completo: | https://repositorio.ufrn.br/handle/123456789/30845 |
Resumo: | Signifi cant reductions in the water levels of lakes are infl uenced by droughts and freshwater demands, especially in semi-arid regions, where hydric stress is greater. The aim of this study was to investigate the dynamics of phytoplankton during two different water volume periods resulting from an extended drought in a semi-arid lake. Another objective was to compare two functional approaches to test which one of these best captures phytoplankton variability as a function of environmental variability. Multivariate analyses performed using the Reynolds Functional Groups (RFG) and Morphology-Based Functional Groups (MBFG) classifi cation schemes indicated two periods, high and a low water volume. The results demonstrated the importance of light availability on phytoplankton assemblages as these two periods showed signifi cant differences in water transparency and phytoplankton composition. During extended droughts the reduction in water volume enhances the development of bloom-forming cyanobacteria through the limitation of light in a eutrophic man-made lake. Moreover, both functional traits approaches demonstrated the effect of light availability on phytoplankton assemblage composition and can be applied in similar systems. However, the RFG classifi cation provides more information and allows a more detailed description of the algal assemblages |
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Becker, VanessaBraga, Gustavo B.2020-12-07T12:44:31Z2020-12-07T12:44:31Z2020-03-16BRAGA, Gustavo G.; BECKER, Vanessa. Influence of water volume reduction on the phytoplankton dynamics in a semi-arid man-made lake: a comparison of two morphofunctional approaches. Anais da Academia Brasileira de Ciências, [S.L.], v. 92, n. 1, p. 1-17, 2020. FapUNIFESP (SciELO). Disponível em <https://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100707&tlng=en> . Acesso em 20 out. 2020. http://dx.doi.org/10.1590/0001-3765202020181102.1678-2690https://repositorio.ufrn.br/handle/123456789/3084510.1590/0001-3765202020181102Academia Brasileira de CiênciasAttribution 3.0 Brazilhttp://creativecommons.org/licenses/by/3.0/br/info:eu-repo/semantics/openAccessHydric deficitCyanobacteriaEutrophicationReynolds functional groupsMorphology-based functional GroupsInfluence of water volume reduction on the phytoplankton dynamics in a semiarid man-made lake: a comparison of two morphofunctional approachesinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleSignifi cant reductions in the water levels of lakes are infl uenced by droughts and freshwater demands, especially in semi-arid regions, where hydric stress is greater. The aim of this study was to investigate the dynamics of phytoplankton during two different water volume periods resulting from an extended drought in a semi-arid lake. Another objective was to compare two functional approaches to test which one of these best captures phytoplankton variability as a function of environmental variability. Multivariate analyses performed using the Reynolds Functional Groups (RFG) and Morphology-Based Functional Groups (MBFG) classifi cation schemes indicated two periods, high and a low water volume. The results demonstrated the importance of light availability on phytoplankton assemblages as these two periods showed signifi cant differences in water transparency and phytoplankton composition. During extended droughts the reduction in water volume enhances the development of bloom-forming cyanobacteria through the limitation of light in a eutrophic man-made lake. Moreover, both functional traits approaches demonstrated the effect of light availability on phytoplankton assemblage composition and can be applied in similar systems. However, the RFG classifi cation provides more information and allows a more detailed description of the algal assemblagesengreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNORIGINALWaterVolumeReductionBecker2020.pdfWaterVolumeReductionBecker2020.pdfapplication/pdf822246https://repositorio.ufrn.br/bitstream/123456789/30845/1/WaterVolumeReductionBecker2020.pdff379fafd671571d12fbf3fd6043b0af5MD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8914https://repositorio.ufrn.br/bitstream/123456789/30845/2/license_rdf4d2950bda3d176f570a9f8b328dfbbefMD52LICENSElicense.txtlicense.txttext/plain; charset=utf-81484https://repositorio.ufrn.br/bitstream/123456789/30845/3/license.txte9597aa2854d128fd968be5edc8a28d9MD53TEXTWaterVolumeReductionBecker2020.pdf.txtWaterVolumeReductionBecker2020.pdf.txtExtracted texttext/plain52138https://repositorio.ufrn.br/bitstream/123456789/30845/4/WaterVolumeReductionBecker2020.pdf.txt8614c28f2f1579235a7fbbd88bb3f07dMD54THUMBNAILWaterVolumeReductionBecker2020.pdf.jpgWaterVolumeReductionBecker2020.pdf.jpgGenerated Thumbnailimage/jpeg1538https://repositorio.ufrn.br/bitstream/123456789/30845/5/WaterVolumeReductionBecker2020.pdf.jpgb84fd4c0f230c7798c269a55356584daMD55123456789/308452020-12-13 05:01:24.264oai:https://repositorio.ufrn.br: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Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2020-12-13T08:01:24Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false |
dc.title.pt_BR.fl_str_mv |
Influence of water volume reduction on the phytoplankton dynamics in a semiarid man-made lake: a comparison of two morphofunctional approaches |
title |
Influence of water volume reduction on the phytoplankton dynamics in a semiarid man-made lake: a comparison of two morphofunctional approaches |
spellingShingle |
Influence of water volume reduction on the phytoplankton dynamics in a semiarid man-made lake: a comparison of two morphofunctional approaches Becker, Vanessa Hydric deficit Cyanobacteria Eutrophication Reynolds functional groups Morphology-based functional Groups |
title_short |
Influence of water volume reduction on the phytoplankton dynamics in a semiarid man-made lake: a comparison of two morphofunctional approaches |
title_full |
Influence of water volume reduction on the phytoplankton dynamics in a semiarid man-made lake: a comparison of two morphofunctional approaches |
title_fullStr |
Influence of water volume reduction on the phytoplankton dynamics in a semiarid man-made lake: a comparison of two morphofunctional approaches |
title_full_unstemmed |
Influence of water volume reduction on the phytoplankton dynamics in a semiarid man-made lake: a comparison of two morphofunctional approaches |
title_sort |
Influence of water volume reduction on the phytoplankton dynamics in a semiarid man-made lake: a comparison of two morphofunctional approaches |
author |
Becker, Vanessa |
author_facet |
Becker, Vanessa Braga, Gustavo B. |
author_role |
author |
author2 |
Braga, Gustavo B. |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Becker, Vanessa Braga, Gustavo B. |
dc.subject.por.fl_str_mv |
Hydric deficit Cyanobacteria Eutrophication Reynolds functional groups Morphology-based functional Groups |
topic |
Hydric deficit Cyanobacteria Eutrophication Reynolds functional groups Morphology-based functional Groups |
description |
Signifi cant reductions in the water levels of lakes are infl uenced by droughts and freshwater demands, especially in semi-arid regions, where hydric stress is greater. The aim of this study was to investigate the dynamics of phytoplankton during two different water volume periods resulting from an extended drought in a semi-arid lake. Another objective was to compare two functional approaches to test which one of these best captures phytoplankton variability as a function of environmental variability. Multivariate analyses performed using the Reynolds Functional Groups (RFG) and Morphology-Based Functional Groups (MBFG) classifi cation schemes indicated two periods, high and a low water volume. The results demonstrated the importance of light availability on phytoplankton assemblages as these two periods showed signifi cant differences in water transparency and phytoplankton composition. During extended droughts the reduction in water volume enhances the development of bloom-forming cyanobacteria through the limitation of light in a eutrophic man-made lake. Moreover, both functional traits approaches demonstrated the effect of light availability on phytoplankton assemblage composition and can be applied in similar systems. However, the RFG classifi cation provides more information and allows a more detailed description of the algal assemblages |
publishDate |
2020 |
dc.date.accessioned.fl_str_mv |
2020-12-07T12:44:31Z |
dc.date.available.fl_str_mv |
2020-12-07T12:44:31Z |
dc.date.issued.fl_str_mv |
2020-03-16 |
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.citation.fl_str_mv |
BRAGA, Gustavo G.; BECKER, Vanessa. Influence of water volume reduction on the phytoplankton dynamics in a semi-arid man-made lake: a comparison of two morphofunctional approaches. Anais da Academia Brasileira de Ciências, [S.L.], v. 92, n. 1, p. 1-17, 2020. FapUNIFESP (SciELO). Disponível em <https://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100707&tlng=en> . Acesso em 20 out. 2020. http://dx.doi.org/10.1590/0001-3765202020181102. |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufrn.br/handle/123456789/30845 |
dc.identifier.issn.none.fl_str_mv |
1678-2690 |
dc.identifier.doi.none.fl_str_mv |
10.1590/0001-3765202020181102 |
identifier_str_mv |
BRAGA, Gustavo G.; BECKER, Vanessa. Influence of water volume reduction on the phytoplankton dynamics in a semi-arid man-made lake: a comparison of two morphofunctional approaches. Anais da Academia Brasileira de Ciências, [S.L.], v. 92, n. 1, p. 1-17, 2020. FapUNIFESP (SciELO). Disponível em <https://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100707&tlng=en> . Acesso em 20 out. 2020. http://dx.doi.org/10.1590/0001-3765202020181102. 1678-2690 10.1590/0001-3765202020181102 |
url |
https://repositorio.ufrn.br/handle/123456789/30845 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ info:eu-repo/semantics/openAccess |
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Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Academia Brasileira de Ciências |
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Academia Brasileira de Ciências |
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reponame:Repositório Institucional da UFRN instname:Universidade Federal do Rio Grande do Norte (UFRN) instacron:UFRN |
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UFRN |
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