Structure and species composition of diatom community during the wet season in three floodplain lakes of Brazilian Pantanal

Detalhes bibliográficos
Autor(a) principal: Nardelli, Margaret S.
Data de Publicação: 2021
Outros Autores: Bicudo, Denise C., Sampaio, Silvio C., Cordovil, Cláudia
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.5/21419
Resumo: Research Article
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spelling Structure and species composition of diatom community during the wet season in three floodplain lakes of Brazilian Pantanaldiatom communitywet seasonfloodplain lakesBrazilian PantanalResearch ArticleIn order to access environmental conditions, the use of bioindicators that have a close relationship with environmental stressors is a largely common practice, but when evaluating environmental inferences, the individual dominant taxa need to be interpreted. Humid regions such as the marshlands are fragile ecosystems and sustain communities of microalgae, often used as bioindicators, of which diatoms are a good example. Although they provide an excellent response to chemical and physical changes in water, diatom studies in surface sediments in wetlands are scarce worldwide. To determine whether diatom species have the potential to provide unambiguous inferences in the influence of environmental factors, we have evaluated diatom abundance in surface sediment, from three Pantanal lakes, against a set of environmental gradients: pH, dissolved oxygen, turbidity, conductivity, total dissolved solids, water temperature, index of trophic water status, total phosphorus and total nitrogen. The Ferradura lake presented an oligotrophic state and both Burro and Caracara ´ lakes presented mesotrophic state. Diatoms were more abundant in the a mesotrophic conditions, but with higher species richness in the oligotrophic conditions. Depending on the N:P ratio, the nutrients nitrogen and phosphorus can also play the role of pollutants and may have negative and unpredictable effects in the environment, such as biotic homogenization. Despite the spatial variation in species, there was a greater richness of Eunotia Ehrenberg species, with the highest relative density of Eunotia formica Ehrenberg and E. pantropica Glushchenko, Kulikovskiy & Kociolek, due to the environmental acidic conditions, a determining characteristic of this genus. It was also observed that a small increase in the level of phosphorus generated an increase in the abundance of Aulacoseira Thwaites with the highest relative density of A. pusilla (Meister) Tuji & Houki and A. veraluciae Tremarin, Torgan & T.Ludwig. However, A. italica dominated in the moderately acidic environment. The results can help with decisions in impacted areas to solve socioeconomic problems, environmental management and biodiversityPlosRepositório da Universidade de LisboaNardelli, Margaret S.Bicudo, Denise C.Sampaio, Silvio C.Cordovil, Cláudia2021-06-02T14:35:34Z20212021-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.5/21419engNardelli MS, Bicudo DC, Sampaio SC, Cordovil CMdS (2021) Structure and species composition of diatom community during the wet season in three floodplain lakes of Brazilian Pantanal. PLoS ONE 16(5): e0251063https://doi. org/10.1371/journal.pone.0251063info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-03-06T14:50:52Zoai:www.repository.utl.pt:10400.5/21419Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T17:06:00.608128Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Structure and species composition of diatom community during the wet season in three floodplain lakes of Brazilian Pantanal
title Structure and species composition of diatom community during the wet season in three floodplain lakes of Brazilian Pantanal
spellingShingle Structure and species composition of diatom community during the wet season in three floodplain lakes of Brazilian Pantanal
Nardelli, Margaret S.
diatom community
wet season
floodplain lakes
Brazilian Pantanal
title_short Structure and species composition of diatom community during the wet season in three floodplain lakes of Brazilian Pantanal
title_full Structure and species composition of diatom community during the wet season in three floodplain lakes of Brazilian Pantanal
title_fullStr Structure and species composition of diatom community during the wet season in three floodplain lakes of Brazilian Pantanal
title_full_unstemmed Structure and species composition of diatom community during the wet season in three floodplain lakes of Brazilian Pantanal
title_sort Structure and species composition of diatom community during the wet season in three floodplain lakes of Brazilian Pantanal
author Nardelli, Margaret S.
author_facet Nardelli, Margaret S.
Bicudo, Denise C.
Sampaio, Silvio C.
Cordovil, Cláudia
author_role author
author2 Bicudo, Denise C.
Sampaio, Silvio C.
Cordovil, Cláudia
author2_role author
author
author
dc.contributor.none.fl_str_mv Repositório da Universidade de Lisboa
dc.contributor.author.fl_str_mv Nardelli, Margaret S.
Bicudo, Denise C.
Sampaio, Silvio C.
Cordovil, Cláudia
dc.subject.por.fl_str_mv diatom community
wet season
floodplain lakes
Brazilian Pantanal
topic diatom community
wet season
floodplain lakes
Brazilian Pantanal
description Research Article
publishDate 2021
dc.date.none.fl_str_mv 2021-06-02T14:35:34Z
2021
2021-01-01T00:00:00Z
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://hdl.handle.net/10400.5/21419
url http://hdl.handle.net/10400.5/21419
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Nardelli MS, Bicudo DC, Sampaio SC, Cordovil CMdS (2021) Structure and species composition of diatom community during the wet season in three floodplain lakes of Brazilian Pantanal. PLoS ONE 16(5): e0251063
https://doi. org/10.1371/journal.pone.0251063
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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