Diel dynamic of phytoplankton functional groups in a tropical water supply, Extremoz Lake, northeastern Brazil
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRN |
Texto Completo: | https://repositorio.ufrn.br/handle/123456789/30928 |
Resumo: | Aim: This study analyzed - the diel and vertical dynamics of phytoplankton functional groups in a natural tropical lake (Extremoz Lake, northeast Brazil), to investigate and understand the driver factors of the community during a severe drought period. Methods: Sampling of the abiotic variables and phytoplankton was performed at intervals of 6 hours over 24 hours in vertical profiles, in dry and rainy seasons (according to the historical average). The phytoplankton species were grouped according to the functional groups’ approach sensu Reynolds et al. (2002). Results: October/12 was considered as a dry period (18.4 mm), while March/13, due to the historical average, as a rainy season, due to the low rainfall during the study period (15.7 mm), it was called severe drought. The lake showed thermal and chemical destratification in both periods. Phytoplankton biomass was higher in the dry season and their vertical distribution was stratified in both periods. In both samplings there were less algal biomass during the night. Phytoplankton functional groups of mixed and shallow systems (S1, L0 and K) were descriptors throughout the study period with higher biomass always registered in the group S1, represented by Planktolyngbya limnetica (Cyanobacteria) Conclusion: The lack of seasonality observed in this study, due to prolonged drought, may have influenced the pattern of homogeneous behavior in both samplings. This pattern strongly influenced the vertical distribution of phytoplankton in the two periods, with a constancy of dominance of functional descriptors groups |
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Becker, VanessaPinto, Thársia da Silva2020-12-08T23:18:37Z2020-12-08T23:18:37Z2014-10PINTO, Thársia da Silva; BECKER, Vanessa. Diel dynamic of phytoplankton functional groups in a tropical water supply, Extremoz Lake, northeastern Brazil. Acta Limnologica Brasiliensia, [S.L.], v. 26, n. 4, p. 356-366, dez. 2014. FapUNIFESP (SciELO). Disponível em <https://www.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2014000400004&lng=en&tlng=en>. Acesso em 20 out 2020. http://dx.doi.org/10.1590/s2179-975x2014000400004.2179-975Xhttps://repositorio.ufrn.br/handle/123456789/3092810.1590/S2179-975X2014000400004Aim: This study analyzed - the diel and vertical dynamics of phytoplankton functional groups in a natural tropical lake (Extremoz Lake, northeast Brazil), to investigate and understand the driver factors of the community during a severe drought period. Methods: Sampling of the abiotic variables and phytoplankton was performed at intervals of 6 hours over 24 hours in vertical profiles, in dry and rainy seasons (according to the historical average). The phytoplankton species were grouped according to the functional groups’ approach sensu Reynolds et al. (2002). Results: October/12 was considered as a dry period (18.4 mm), while March/13, due to the historical average, as a rainy season, due to the low rainfall during the study period (15.7 mm), it was called severe drought. The lake showed thermal and chemical destratification in both periods. Phytoplankton biomass was higher in the dry season and their vertical distribution was stratified in both periods. In both samplings there were less algal biomass during the night. Phytoplankton functional groups of mixed and shallow systems (S1, L0 and K) were descriptors throughout the study period with higher biomass always registered in the group S1, represented by Planktolyngbya limnetica (Cyanobacteria) Conclusion: The lack of seasonality observed in this study, due to prolonged drought, may have influenced the pattern of homogeneous behavior in both samplings. This pattern strongly influenced the vertical distribution of phytoplankton in the two periods, with a constancy of dominance of functional descriptors groupsObjetivo: O nosso trabalho teve como objetivo avaliar a dinâmica nictemeral e vertical dos grupos funcionais fitoplanctônicos em uma lagoa natural tropical (Lagoa de Extremoz, nordeste do Brasil), para investigar e compreender os fatores direcionadores da comunidade em um período de seca severa. Métodos: As amostragens das variáveis abióticas e do fitoplâncton foram realizadas a intervalos de 6 horas ao longo de um ciclo de 24 horas em perfis verticais nas estações de seca e chuva. As espécies fitoplanctônicas foram agrupadas de acordo com a abordagem de grupos funcionais sensu Reynolds et al. (2002). Resultados: O mês de outubro/12 foi caracterizado como período seco (18,4 mm), enquanto que março/13, pela média histórica era caracterizado período chuvoso, devido a baixa precipitação no período de estudo (15,7 mm), foi denominado seca severa. A lagoa apresentou desestratificação térmica e química em ambos períodos. A biomassa do fitoplâncton foi maior na estação seca e a distribuição vertical da mesma foi estratificada em ambas os períodos. Em ambas as amostragens houve menor biomassa algal nos períodos noturnos. Grupos funcionais fitoplanctônicos típicos de ambientes rasos e misturados (S1, L0 e K) foram descritores durante todo o período do estudo, com maior biomassa registrada sempre no grupo S1, representado pela Planktolyngbya limnetica (Cyanobacteria). Conclusão: A falta de sazonalidade observada no estudo, devido ao período de seca prolongada, pode ter influenciado no padrão de comportamento homogêneo em ambas as amostragens. Esse padrão influenciou fortemente a distribuição vertical da comunidade fitoplanctônica nos dois períodos, havendo uma constância de dominância de grupos funcionais descritoresAssociação Brasileira de LimnologiaAttribution 3.0 Brazilhttp://creativecommons.org/licenses/by/3.0/br/info:eu-repo/semantics/openAccessShallow lakeVertical distributionCyanobacteriaFuncional groupsDiel dynamic of phytoplankton functional groups in a tropical water supply, Extremoz Lake, northeastern Brazilinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleengreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNORIGINALDielDynamicOfPhytoplanktonFunctionalGroups_Becker_2014.pdfDielDynamicOfPhytoplanktonFunctionalGroups_Becker_2014.pdfapplication/pdf3151716https://repositorio.ufrn.br/bitstream/123456789/30928/1/DielDynamicOfPhytoplanktonFunctionalGroups_Becker_2014.pdf7a92935b02361e3a72bdd5f2f017e1b4MD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8914https://repositorio.ufrn.br/bitstream/123456789/30928/2/license_rdf4d2950bda3d176f570a9f8b328dfbbefMD52LICENSElicense.txtlicense.txttext/plain; charset=utf-81484https://repositorio.ufrn.br/bitstream/123456789/30928/3/license.txte9597aa2854d128fd968be5edc8a28d9MD53TEXTDielDynamicOfPhytoplanktonFunctionalGroups_Becker_2014.pdf.txtDielDynamicOfPhytoplanktonFunctionalGroups_Becker_2014.pdf.txtExtracted texttext/plain33680https://repositorio.ufrn.br/bitstream/123456789/30928/4/DielDynamicOfPhytoplanktonFunctionalGroups_Becker_2014.pdf.txtee9fba695349257cb8d371863f3fc916MD54THUMBNAILDielDynamicOfPhytoplanktonFunctionalGroups_Becker_2014.pdf.jpgDielDynamicOfPhytoplanktonFunctionalGroups_Becker_2014.pdf.jpgGenerated Thumbnailimage/jpeg1616https://repositorio.ufrn.br/bitstream/123456789/30928/5/DielDynamicOfPhytoplanktonFunctionalGroups_Becker_2014.pdf.jpg652453a10c2b7115c8fa49f79cb6858dMD55123456789/309282020-12-13 05:01:56.896oai:https://repositorio.ufrn.br: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Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2020-12-13T08:01:56Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false |
dc.title.pt_BR.fl_str_mv |
Diel dynamic of phytoplankton functional groups in a tropical water supply, Extremoz Lake, northeastern Brazil |
title |
Diel dynamic of phytoplankton functional groups in a tropical water supply, Extremoz Lake, northeastern Brazil |
spellingShingle |
Diel dynamic of phytoplankton functional groups in a tropical water supply, Extremoz Lake, northeastern Brazil Becker, Vanessa Shallow lake Vertical distribution Cyanobacteria Funcional groups |
title_short |
Diel dynamic of phytoplankton functional groups in a tropical water supply, Extremoz Lake, northeastern Brazil |
title_full |
Diel dynamic of phytoplankton functional groups in a tropical water supply, Extremoz Lake, northeastern Brazil |
title_fullStr |
Diel dynamic of phytoplankton functional groups in a tropical water supply, Extremoz Lake, northeastern Brazil |
title_full_unstemmed |
Diel dynamic of phytoplankton functional groups in a tropical water supply, Extremoz Lake, northeastern Brazil |
title_sort |
Diel dynamic of phytoplankton functional groups in a tropical water supply, Extremoz Lake, northeastern Brazil |
author |
Becker, Vanessa |
author_facet |
Becker, Vanessa Pinto, Thársia da Silva |
author_role |
author |
author2 |
Pinto, Thársia da Silva |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Becker, Vanessa Pinto, Thársia da Silva |
dc.subject.por.fl_str_mv |
Shallow lake Vertical distribution Cyanobacteria Funcional groups |
topic |
Shallow lake Vertical distribution Cyanobacteria Funcional groups |
description |
Aim: This study analyzed - the diel and vertical dynamics of phytoplankton functional groups in a natural tropical lake (Extremoz Lake, northeast Brazil), to investigate and understand the driver factors of the community during a severe drought period. Methods: Sampling of the abiotic variables and phytoplankton was performed at intervals of 6 hours over 24 hours in vertical profiles, in dry and rainy seasons (according to the historical average). The phytoplankton species were grouped according to the functional groups’ approach sensu Reynolds et al. (2002). Results: October/12 was considered as a dry period (18.4 mm), while March/13, due to the historical average, as a rainy season, due to the low rainfall during the study period (15.7 mm), it was called severe drought. The lake showed thermal and chemical destratification in both periods. Phytoplankton biomass was higher in the dry season and their vertical distribution was stratified in both periods. In both samplings there were less algal biomass during the night. Phytoplankton functional groups of mixed and shallow systems (S1, L0 and K) were descriptors throughout the study period with higher biomass always registered in the group S1, represented by Planktolyngbya limnetica (Cyanobacteria) Conclusion: The lack of seasonality observed in this study, due to prolonged drought, may have influenced the pattern of homogeneous behavior in both samplings. This pattern strongly influenced the vertical distribution of phytoplankton in the two periods, with a constancy of dominance of functional descriptors groups |
publishDate |
2014 |
dc.date.issued.fl_str_mv |
2014-10 |
dc.date.accessioned.fl_str_mv |
2020-12-08T23:18:37Z |
dc.date.available.fl_str_mv |
2020-12-08T23:18:37Z |
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 |
PINTO, Thársia da Silva; BECKER, Vanessa. Diel dynamic of phytoplankton functional groups in a tropical water supply, Extremoz Lake, northeastern Brazil. Acta Limnologica Brasiliensia, [S.L.], v. 26, n. 4, p. 356-366, dez. 2014. FapUNIFESP (SciELO). Disponível em <https://www.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2014000400004&lng=en&tlng=en>. Acesso em 20 out 2020. http://dx.doi.org/10.1590/s2179-975x2014000400004. |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufrn.br/handle/123456789/30928 |
dc.identifier.issn.none.fl_str_mv |
2179-975X |
dc.identifier.doi.none.fl_str_mv |
10.1590/S2179-975X2014000400004 |
identifier_str_mv |
PINTO, Thársia da Silva; BECKER, Vanessa. Diel dynamic of phytoplankton functional groups in a tropical water supply, Extremoz Lake, northeastern Brazil. Acta Limnologica Brasiliensia, [S.L.], v. 26, n. 4, p. 356-366, dez. 2014. FapUNIFESP (SciELO). Disponível em <https://www.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2014000400004&lng=en&tlng=en>. Acesso em 20 out 2020. http://dx.doi.org/10.1590/s2179-975x2014000400004. 2179-975X 10.1590/S2179-975X2014000400004 |
url |
https://repositorio.ufrn.br/handle/123456789/30928 |
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 |
rights_invalid_str_mv |
Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ |
eu_rights_str_mv |
openAccess |
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 |
reponame:Repositório Institucional da UFRN instname:Universidade Federal do Rio Grande do Norte (UFRN) instacron:UFRN |
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Universidade Federal do Rio Grande do Norte (UFRN) |
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UFRN |
institution |
UFRN |
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Repositório Institucional da UFRN |
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Repositório Institucional da UFRN |
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