Relationship between phytoplankton structure and environmental variables in tropical reservoirs with different trophic states

Detalhes bibliográficos
Autor(a) principal: Oliveira,Simone Alves de
Data de Publicação: 2020
Outros Autores: Ferragut,Carla, Bicudo,Carlos Eduardo de Mattos
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Acta Botanica Brasilica
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000100083
Resumo: ABSTRACT Phytoplankton structure is influenced by environmental factors, seasonal cycles and the trophic state of the system. The objective of the present study was to identify guilds of phytoplankton species that are representative of seasonality and trophic status. We evaluated phytoplankton biomass and species composition in five tropical reservoirs, with different trophic states and during rainy and dry periods. At most of the sampling sites, total biomass was higher during the rainy season. Moreover, high cyanobacterial biomass was observed in all reservoirs except for one of the mesotrophic reservoirs, which had no significant contribution from the group. Phytoplankton guilds associated with the trophic gradient and seasonality were identified. Additionally, trophic status was determined to be the most important community structure factor. The results emphasize the importance of taxonomic identification when monitoring phytoplankton structure and autoecology. Furthermore, these aquatic organisms are highly sensitive to environmental variations, making them useful tools for evaluating and/or monitoring the ecological condition of aquatic ecosystems.
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spelling Relationship between phytoplankton structure and environmental variables in tropical reservoirs with different trophic statesCyanobacteriaphytoplanktonguildreservoirseasonalityABSTRACT Phytoplankton structure is influenced by environmental factors, seasonal cycles and the trophic state of the system. The objective of the present study was to identify guilds of phytoplankton species that are representative of seasonality and trophic status. We evaluated phytoplankton biomass and species composition in five tropical reservoirs, with different trophic states and during rainy and dry periods. At most of the sampling sites, total biomass was higher during the rainy season. Moreover, high cyanobacterial biomass was observed in all reservoirs except for one of the mesotrophic reservoirs, which had no significant contribution from the group. Phytoplankton guilds associated with the trophic gradient and seasonality were identified. Additionally, trophic status was determined to be the most important community structure factor. The results emphasize the importance of taxonomic identification when monitoring phytoplankton structure and autoecology. Furthermore, these aquatic organisms are highly sensitive to environmental variations, making them useful tools for evaluating and/or monitoring the ecological condition of aquatic ecosystems.Sociedade Botânica do Brasil2020-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000100083Acta Botanica Brasilica v.34 n.1 2020reponame:Acta Botanica Brasilicainstname:Sociedade Botânica do Brasil (SBB)instacron:SBB10.1590/0102-33062019abb0207info:eu-repo/semantics/openAccessOliveira,Simone Alves deFerragut,CarlaBicudo,Carlos Eduardo de Mattoseng2020-03-16T00:00:00Zoai:scielo:S0102-33062020000100083Revistahttps://www.scielo.br/j/abb/ONGhttps://old.scielo.br/oai/scielo-oai.phpacta@botanica.org.br||acta@botanica.org.br|| f.a.r.santos@gmail.com1677-941X0102-3306opendoar:2020-03-16T00:00Acta Botanica Brasilica - Sociedade Botânica do Brasil (SBB)false
dc.title.none.fl_str_mv Relationship between phytoplankton structure and environmental variables in tropical reservoirs with different trophic states
title Relationship between phytoplankton structure and environmental variables in tropical reservoirs with different trophic states
spellingShingle Relationship between phytoplankton structure and environmental variables in tropical reservoirs with different trophic states
Oliveira,Simone Alves de
Cyanobacteria
phytoplankton
guild
reservoir
seasonality
title_short Relationship between phytoplankton structure and environmental variables in tropical reservoirs with different trophic states
title_full Relationship between phytoplankton structure and environmental variables in tropical reservoirs with different trophic states
title_fullStr Relationship between phytoplankton structure and environmental variables in tropical reservoirs with different trophic states
title_full_unstemmed Relationship between phytoplankton structure and environmental variables in tropical reservoirs with different trophic states
title_sort Relationship between phytoplankton structure and environmental variables in tropical reservoirs with different trophic states
author Oliveira,Simone Alves de
author_facet Oliveira,Simone Alves de
Ferragut,Carla
Bicudo,Carlos Eduardo de Mattos
author_role author
author2 Ferragut,Carla
Bicudo,Carlos Eduardo de Mattos
author2_role author
author
dc.contributor.author.fl_str_mv Oliveira,Simone Alves de
Ferragut,Carla
Bicudo,Carlos Eduardo de Mattos
dc.subject.por.fl_str_mv Cyanobacteria
phytoplankton
guild
reservoir
seasonality
topic Cyanobacteria
phytoplankton
guild
reservoir
seasonality
description ABSTRACT Phytoplankton structure is influenced by environmental factors, seasonal cycles and the trophic state of the system. The objective of the present study was to identify guilds of phytoplankton species that are representative of seasonality and trophic status. We evaluated phytoplankton biomass and species composition in five tropical reservoirs, with different trophic states and during rainy and dry periods. At most of the sampling sites, total biomass was higher during the rainy season. Moreover, high cyanobacterial biomass was observed in all reservoirs except for one of the mesotrophic reservoirs, which had no significant contribution from the group. Phytoplankton guilds associated with the trophic gradient and seasonality were identified. Additionally, trophic status was determined to be the most important community structure factor. The results emphasize the importance of taxonomic identification when monitoring phytoplankton structure and autoecology. Furthermore, these aquatic organisms are highly sensitive to environmental variations, making them useful tools for evaluating and/or monitoring the ecological condition of aquatic ecosystems.
publishDate 2020
dc.date.none.fl_str_mv 2020-03-01
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=S0102-33062020000100083
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000100083
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0102-33062019abb0207
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 Sociedade Botânica do Brasil
publisher.none.fl_str_mv Sociedade Botânica do Brasil
dc.source.none.fl_str_mv Acta Botanica Brasilica v.34 n.1 2020
reponame:Acta Botanica Brasilica
instname:Sociedade Botânica do Brasil (SBB)
instacron:SBB
instname_str Sociedade Botânica do Brasil (SBB)
instacron_str SBB
institution SBB
reponame_str Acta Botanica Brasilica
collection Acta Botanica Brasilica
repository.name.fl_str_mv Acta Botanica Brasilica - Sociedade Botânica do Brasil (SBB)
repository.mail.fl_str_mv acta@botanica.org.br||acta@botanica.org.br|| f.a.r.santos@gmail.com
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