COMPOSITION OF MICROPHYTOPLANKTON OF AN ESTUARINE AMAZON RIVER, PARÁ, BRAZIL
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Biota Amazônia |
Texto Completo: | https://periodicos.unifap.br/index.php/biota/article/view/915 |
Resumo: | This work aims to describe the composition, relative abundance and frequency of occurrence of microphytoplankton in the Arienga River, determined from the analysis of ten samples collected in the rainy and dry seasons (May and September 2009 respectively), during five stations, using a plankton net with a mesh size of 20mm. In the period studied, the rainfall showed an atypical behavior, compared to the average of the last ten years for the region, as pH and temperature did not undergone changes. A total of 128 species were identified, belonging to divisions: Dinophyta (0.78%), Chrysophyta (0.78%), Cyanobacterium (12.50%), Chlorophyta (26.56%), and Bacillariophyta (59.38%). Of Genres found, 17 had 100% of representativeness at in both fenods. It was possible to confirm two large groups, suggesting that the rainfall regime was the main controller factor of phytoplankton composition and spatial variation of species along the Arienga River. The phytoplankton diversity was considered characteristic of the Amazon region; therefore, it is considered that the human action did not affect the phytoplankton community of the Arienga River to date.Keywords: phytoplankton; estuary; Amazon; Bacillariophyta; Polymyxus coronalis. |
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Biota Amazônia |
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COMPOSITION OF MICROPHYTOPLANKTON OF AN ESTUARINE AMAZON RIVER, PARÁ, BRAZILCOMPOSIÇÃO DE MICROFITOPLÂNCTON DE UM ESTUÁRIO DO RIO AMAZONAS, PARÁ, BRASILThis work aims to describe the composition, relative abundance and frequency of occurrence of microphytoplankton in the Arienga River, determined from the analysis of ten samples collected in the rainy and dry seasons (May and September 2009 respectively), during five stations, using a plankton net with a mesh size of 20mm. In the period studied, the rainfall showed an atypical behavior, compared to the average of the last ten years for the region, as pH and temperature did not undergone changes. A total of 128 species were identified, belonging to divisions: Dinophyta (0.78%), Chrysophyta (0.78%), Cyanobacterium (12.50%), Chlorophyta (26.56%), and Bacillariophyta (59.38%). Of Genres found, 17 had 100% of representativeness at in both fenods. It was possible to confirm two large groups, suggesting that the rainfall regime was the main controller factor of phytoplankton composition and spatial variation of species along the Arienga River. The phytoplankton diversity was considered characteristic of the Amazon region; therefore, it is considered that the human action did not affect the phytoplankton community of the Arienga River to date.Keywords: phytoplankton; estuary; Amazon; Bacillariophyta; Polymyxus coronalis.Este trabalho teve como objetivo descrever a composição, abundância relativa e frequência de ocorrência do microfitoplâncton do rio Arienga, a partir da análise qualitativa de 10 amostras coletadas no período chuvoso e seco (respectivamente maio e setembro de 2009), em cinco estações, utilizando-se uma rede cônico-cilíndrica de plâncton com abertura de malha de 20mm. No período estudado a precipitação pluviométrica apresentou um comportamento atípico, comparado à média dos últimos 10 anos para a região, o pH e a temperatura não sofreram variações. Foram identificadas 128 espécies pertencentes às divisões: Dinophyta (0,78%), Chrysophyta (0,78%), Cyanobactéria (12,50%), Chlorophyta (26,56%) e Bacillariophyta (59,38%). Dos gêneros encontrados, 17 apresentaram 100% de representatividade, nos períodos de coleta. Foi possível constatar dois grandes grupos, sugerindo que o regime pluviométrico foi o principal fator controlador da composição fitoplanctônica e da variação espacial de espécies do rio Arienga. A diversidade fitoplanctônica foi considerada característica para a região amazônica.Palavras-chave: fitoplâncton, estuário, Amazônia, Bacillariophyta, Polymyxus coronalis.Universidade Federal do AmapáPrograma de Apoio a Núcleos de Excelência, PRONEX.Sena, Bethânia Alvesda Costa, Vanessa BandeiraNakayama, Luizada Rocha, Rossineide Martins2015-06-30info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArtigo Avaliado pelos Paresapplication/pdfhttps://periodicos.unifap.br/index.php/biota/article/view/91510.18561/2179-5746/biotaamazonia.v5n2p1-9Biota Amazônia (Biote Amazonie, Biota Amazonia, Amazonian Biota); v. 5, n. 2 (2015); 1-92179-5746reponame:Biota Amazôniainstname:Universidade Federal do Amapá (UNIFAP)instacron:UNIFAPenghttps://periodicos.unifap.br/index.php/biota/article/view/915/v5n2p1-9.pdfhttps://periodicos.unifap.br/index.php/biota/article/downloadSuppFile/915/108Pará; BrasilDireitos autorais 2015 Biota Amazônia (Biote Amazonie, Biota Amazonia, Amazonian Biota)http://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccess2016-03-29T17:53:10Zoai:ojs.pkp.sfu.ca:article/915Revistahttp://periodicos.unifap.br/index.php/biotaONGhttps://periodicos.unifap.br/index.php/biota/oai||juliosa@unifap.br2179-57462179-5746opendoar:2016-03-29T17:53:10Biota Amazônia - Universidade Federal do Amapá (UNIFAP)false |
dc.title.none.fl_str_mv |
COMPOSITION OF MICROPHYTOPLANKTON OF AN ESTUARINE AMAZON RIVER, PARÁ, BRAZIL COMPOSIÇÃO DE MICROFITOPLÂNCTON DE UM ESTUÁRIO DO RIO AMAZONAS, PARÁ, BRASIL |
title |
COMPOSITION OF MICROPHYTOPLANKTON OF AN ESTUARINE AMAZON RIVER, PARÁ, BRAZIL |
spellingShingle |
COMPOSITION OF MICROPHYTOPLANKTON OF AN ESTUARINE AMAZON RIVER, PARÁ, BRAZIL Sena, Bethânia Alves |
title_short |
COMPOSITION OF MICROPHYTOPLANKTON OF AN ESTUARINE AMAZON RIVER, PARÁ, BRAZIL |
title_full |
COMPOSITION OF MICROPHYTOPLANKTON OF AN ESTUARINE AMAZON RIVER, PARÁ, BRAZIL |
title_fullStr |
COMPOSITION OF MICROPHYTOPLANKTON OF AN ESTUARINE AMAZON RIVER, PARÁ, BRAZIL |
title_full_unstemmed |
COMPOSITION OF MICROPHYTOPLANKTON OF AN ESTUARINE AMAZON RIVER, PARÁ, BRAZIL |
title_sort |
COMPOSITION OF MICROPHYTOPLANKTON OF AN ESTUARINE AMAZON RIVER, PARÁ, BRAZIL |
author |
Sena, Bethânia Alves |
author_facet |
Sena, Bethânia Alves da Costa, Vanessa Bandeira Nakayama, Luiza da Rocha, Rossineide Martins |
author_role |
author |
author2 |
da Costa, Vanessa Bandeira Nakayama, Luiza da Rocha, Rossineide Martins |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Programa de Apoio a Núcleos de Excelência, PRONEX. |
dc.contributor.author.fl_str_mv |
Sena, Bethânia Alves da Costa, Vanessa Bandeira Nakayama, Luiza da Rocha, Rossineide Martins |
description |
This work aims to describe the composition, relative abundance and frequency of occurrence of microphytoplankton in the Arienga River, determined from the analysis of ten samples collected in the rainy and dry seasons (May and September 2009 respectively), during five stations, using a plankton net with a mesh size of 20mm. In the period studied, the rainfall showed an atypical behavior, compared to the average of the last ten years for the region, as pH and temperature did not undergone changes. A total of 128 species were identified, belonging to divisions: Dinophyta (0.78%), Chrysophyta (0.78%), Cyanobacterium (12.50%), Chlorophyta (26.56%), and Bacillariophyta (59.38%). Of Genres found, 17 had 100% of representativeness at in both fenods. It was possible to confirm two large groups, suggesting that the rainfall regime was the main controller factor of phytoplankton composition and spatial variation of species along the Arienga River. The phytoplankton diversity was considered characteristic of the Amazon region; therefore, it is considered that the human action did not affect the phytoplankton community of the Arienga River to date.Keywords: phytoplankton; estuary; Amazon; Bacillariophyta; Polymyxus coronalis. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-06-30 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artigo Avaliado pelos Pares |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://periodicos.unifap.br/index.php/biota/article/view/915 10.18561/2179-5746/biotaamazonia.v5n2p1-9 |
url |
https://periodicos.unifap.br/index.php/biota/article/view/915 |
identifier_str_mv |
10.18561/2179-5746/biotaamazonia.v5n2p1-9 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.unifap.br/index.php/biota/article/view/915/v5n2p1-9.pdf https://periodicos.unifap.br/index.php/biota/article/downloadSuppFile/915/108 |
dc.rights.driver.fl_str_mv |
Direitos autorais 2015 Biota Amazônia (Biote Amazonie, Biota Amazonia, Amazonian Biota) http://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Direitos autorais 2015 Biota Amazônia (Biote Amazonie, Biota Amazonia, Amazonian Biota) http://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.coverage.none.fl_str_mv |
Pará; Brasil |
dc.publisher.none.fl_str_mv |
Universidade Federal do Amapá |
publisher.none.fl_str_mv |
Universidade Federal do Amapá |
dc.source.none.fl_str_mv |
Biota Amazônia (Biote Amazonie, Biota Amazonia, Amazonian Biota); v. 5, n. 2 (2015); 1-9 2179-5746 reponame:Biota Amazônia instname:Universidade Federal do Amapá (UNIFAP) instacron:UNIFAP |
instname_str |
Universidade Federal do Amapá (UNIFAP) |
instacron_str |
UNIFAP |
institution |
UNIFAP |
reponame_str |
Biota Amazônia |
collection |
Biota Amazônia |
repository.name.fl_str_mv |
Biota Amazônia - Universidade Federal do Amapá (UNIFAP) |
repository.mail.fl_str_mv |
||juliosa@unifap.br |
_version_ |
1800218370523529216 |