Annual dynamics of benthic foraminiferal populations in the Tramandaí-Armazém Lagoon, southern Brazil
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/230894 |
Resumo: | Modern coastal environments are considered highly selective and dynamic, not only due to the natural variability of physical and chemical parameters, but also because of anthropogenic contamination. Our study aims to identify environmental and/or anthropogenic factors influencing benthic foraminiferal abundances over a period of one year in the Tramandaí-Armazém Lagoon, southern Brazil. Assemblages were composed exclusively of agglutinated species assigned to the genera Trochammina, Trochamminita, Ammotium, Haplophragmoides and Miliammina. Total abundances varied throughout the year, reaching the highest values during the wetter months of March and July, when living and dead assemblages became dominated by Ammotium salsum. This pattern is likely related to salinity fluctuations due to changes in freshwater input that, consequently, affected the amount of organic matter (e.g., phytodetritus) brought into the lagoon by surrounding drainages. To assess the impact of anthropogenic pollution, we evaluated total relative abundances of deformed tests in the Tramandaí-Armazém Lagoon. Relative abundances of deformed tests were the highest during the months of January and March, when contaminant (e.g., sewage) discharge was probably increased due to the seasonal population growth in the region. |
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Martins, Eduarda PachecoKochhann, Karlos G.D.Bergue, Cristianini Trescastro2021-10-19T04:23:16Z20212675-2824http://hdl.handle.net/10183/230894001126994Modern coastal environments are considered highly selective and dynamic, not only due to the natural variability of physical and chemical parameters, but also because of anthropogenic contamination. Our study aims to identify environmental and/or anthropogenic factors influencing benthic foraminiferal abundances over a period of one year in the Tramandaí-Armazém Lagoon, southern Brazil. Assemblages were composed exclusively of agglutinated species assigned to the genera Trochammina, Trochamminita, Ammotium, Haplophragmoides and Miliammina. Total abundances varied throughout the year, reaching the highest values during the wetter months of March and July, when living and dead assemblages became dominated by Ammotium salsum. This pattern is likely related to salinity fluctuations due to changes in freshwater input that, consequently, affected the amount of organic matter (e.g., phytodetritus) brought into the lagoon by surrounding drainages. To assess the impact of anthropogenic pollution, we evaluated total relative abundances of deformed tests in the Tramandaí-Armazém Lagoon. Relative abundances of deformed tests were the highest during the months of January and March, when contaminant (e.g., sewage) discharge was probably increased due to the seasonal population growth in the region.application/pdfengOcean and Coastal Research [recurso eletrônico]. São Paulo : USP, 2021. Vol. 69 (2021), e21003, 10 p.Foraminiferos bentônicosDinâmica populacionalTramandaí, Lagoa de (RS)Foraminifera benthicPopulation dynamicsAnnual dynamics of benthic foraminiferal populations in the Tramandaí-Armazém Lagoon, southern Brazilinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001126994.pdf.txt001126994.pdf.txtExtracted Texttext/plain31982http://www.lume.ufrgs.br/bitstream/10183/230894/2/001126994.pdf.txtb1ee00551023341abab86ae7d1e15f06MD52ORIGINAL001126994.pdfTexto completo (inglês)application/pdf5378530http://www.lume.ufrgs.br/bitstream/10183/230894/1/001126994.pdfdce3bad8141602e6c3b79ab429c9c937MD5110183/2308942021-11-20 06:02:26.959265oai:www.lume.ufrgs.br:10183/230894Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2021-11-20T08:02:26Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Annual dynamics of benthic foraminiferal populations in the Tramandaí-Armazém Lagoon, southern Brazil |
title |
Annual dynamics of benthic foraminiferal populations in the Tramandaí-Armazém Lagoon, southern Brazil |
spellingShingle |
Annual dynamics of benthic foraminiferal populations in the Tramandaí-Armazém Lagoon, southern Brazil Martins, Eduarda Pacheco Foraminiferos bentônicos Dinâmica populacional Tramandaí, Lagoa de (RS) Foraminifera benthic Population dynamics |
title_short |
Annual dynamics of benthic foraminiferal populations in the Tramandaí-Armazém Lagoon, southern Brazil |
title_full |
Annual dynamics of benthic foraminiferal populations in the Tramandaí-Armazém Lagoon, southern Brazil |
title_fullStr |
Annual dynamics of benthic foraminiferal populations in the Tramandaí-Armazém Lagoon, southern Brazil |
title_full_unstemmed |
Annual dynamics of benthic foraminiferal populations in the Tramandaí-Armazém Lagoon, southern Brazil |
title_sort |
Annual dynamics of benthic foraminiferal populations in the Tramandaí-Armazém Lagoon, southern Brazil |
author |
Martins, Eduarda Pacheco |
author_facet |
Martins, Eduarda Pacheco Kochhann, Karlos G.D. Bergue, Cristianini Trescastro |
author_role |
author |
author2 |
Kochhann, Karlos G.D. Bergue, Cristianini Trescastro |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Martins, Eduarda Pacheco Kochhann, Karlos G.D. Bergue, Cristianini Trescastro |
dc.subject.por.fl_str_mv |
Foraminiferos bentônicos Dinâmica populacional Tramandaí, Lagoa de (RS) |
topic |
Foraminiferos bentônicos Dinâmica populacional Tramandaí, Lagoa de (RS) Foraminifera benthic Population dynamics |
dc.subject.eng.fl_str_mv |
Foraminifera benthic Population dynamics |
description |
Modern coastal environments are considered highly selective and dynamic, not only due to the natural variability of physical and chemical parameters, but also because of anthropogenic contamination. Our study aims to identify environmental and/or anthropogenic factors influencing benthic foraminiferal abundances over a period of one year in the Tramandaí-Armazém Lagoon, southern Brazil. Assemblages were composed exclusively of agglutinated species assigned to the genera Trochammina, Trochamminita, Ammotium, Haplophragmoides and Miliammina. Total abundances varied throughout the year, reaching the highest values during the wetter months of March and July, when living and dead assemblages became dominated by Ammotium salsum. This pattern is likely related to salinity fluctuations due to changes in freshwater input that, consequently, affected the amount of organic matter (e.g., phytodetritus) brought into the lagoon by surrounding drainages. To assess the impact of anthropogenic pollution, we evaluated total relative abundances of deformed tests in the Tramandaí-Armazém Lagoon. Relative abundances of deformed tests were the highest during the months of January and March, when contaminant (e.g., sewage) discharge was probably increased due to the seasonal population growth in the region. |
publishDate |
2021 |
dc.date.accessioned.fl_str_mv |
2021-10-19T04:23:16Z |
dc.date.issued.fl_str_mv |
2021 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/other |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
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article |
status_str |
publishedVersion |
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http://hdl.handle.net/10183/230894 |
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2675-2824 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001126994 |
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2675-2824 001126994 |
url |
http://hdl.handle.net/10183/230894 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Ocean and Coastal Research [recurso eletrônico]. São Paulo : USP, 2021. Vol. 69 (2021), e21003, 10 p. |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
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