Foraminifera, thecamoebians and palynomorphs as hydrodynamic indicators in Araguari Estuary, Amazonian Coast, Amapá State - Brazil

Detalhes bibliográficos
Autor(a) principal: Laut, Lazaro Luiz Mattos
Data de Publicação: 2010
Outros Autores: Ferreira, Daniele Esteves da Silva, Santos, Valdenira Ferreira, Figueiredo Jr, Alberto Garcia, Carvalho, Marcelo de Araújo, Machado, Odete Fátima
Tipo de documento: Artigo
Idioma: por
Título da fonte: Anuário do Instituto de Geociências (Online)
Texto Completo: https://revistas.ufrj.br/index.php/aigeo/article/view/6809
Resumo: The Araguari estuarine dynamics is singular among traditional models of estuaries under tidal regime due to influence of macrotidal and tidal bore. In order to establish estuarine zones in Araguari according foraminifera, thecamoebians, paliynomorphs and physical-chemistry parameters, sixteen sample stations were established along the estuary. Turbidity and temperature were the environmental parameters which allowed determination of the estuarine gradient. Eighteen species of foraminifera, ten of thecamoebians and fourteen of particulate organic matter types were identified. Cluster analysis in R-mode showed three microorganism assemblages and four palynomorph ones. The CCA analyze shows turbidity and total organic matter with the most influence over foraminiferal and thecamoebians distribution at Araguari. Clustering analysis in Q-mode using all data formed four groups suggesting three estuarine zones in Araguari: Zone I composed of thecamoebian species and continental palynomorphs; Zone II - composed by mangrove foraminifera, thecamoebians and all palynomorph assemblages; and Zone III - composed by mangrove and estuarine foraminifera and all palynomorph assemblages.
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spelling Foraminifera, thecamoebians and palynomorphs as hydrodynamic indicators in Araguari Estuary, Amazonian Coast, Amapá State - BrazilForaminíferos, tecamebas e palinomorfos como indicadores da hidrodinâmica no Estuário do Araguari, Costa Amazônica, Estado do Amapá - BrasilThe Araguari estuarine dynamics is singular among traditional models of estuaries under tidal regime due to influence of macrotidal and tidal bore. In order to establish estuarine zones in Araguari according foraminifera, thecamoebians, paliynomorphs and physical-chemistry parameters, sixteen sample stations were established along the estuary. Turbidity and temperature were the environmental parameters which allowed determination of the estuarine gradient. Eighteen species of foraminifera, ten of thecamoebians and fourteen of particulate organic matter types were identified. Cluster analysis in R-mode showed three microorganism assemblages and four palynomorph ones. The CCA analyze shows turbidity and total organic matter with the most influence over foraminiferal and thecamoebians distribution at Araguari. Clustering analysis in Q-mode using all data formed four groups suggesting three estuarine zones in Araguari: Zone I composed of thecamoebian species and continental palynomorphs; Zone II - composed by mangrove foraminifera, thecamoebians and all palynomorph assemblages; and Zone III - composed by mangrove and estuarine foraminifera and all palynomorph assemblages.O regime de macromaré e a pororoca controlam a dinâmica estuarina do Araguari, na qual é muito diferente dos modelos tradicionais dos estuários sob este regime de maré. Objetivando estabelecer zonas estuarinas no Araguari com base em assembléias de foraminíferos, tecamebas, palinomorfos e parâmetros físico-químicos, foram estabelecidas dezesseis estações amostrais ao longo do estuário. A turbidez e a temperatura foram os parâmetros ambientais que permitiram determinar gradiente estuarino. Dezoito espécies de foraminíferos, dez espécies de tecamebas e quatorze espécies de palinomorfos foram identificadas. A análise de agrupamento em modo-R mostrou a existência de assembléias de foraminíferos e quatro de palinomorfos. A análise em CCA demonstrou que a turbidez e a matéria orgânica como os parâmetros de maior influência na distribuição dos foraminíferos tecamebas no Araguari. A análise de agrupamento em Modo-Q usando todos os dados formou quarto grupos de estações que sugerem a existência de três zonas estuarinas: Zona I - composta por tecamebas e palinomorfos continentais; Zona II - compostas por foraminíferos de manguezal, acritacos e todas as assembléias de palinomorfos; e Zona III - composta por foraminíferos de manguezal e estuarinos e por todas as assembléias de palinomorfos.Universidade Federal do Rio de Janeiro2010-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://revistas.ufrj.br/index.php/aigeo/article/view/680910.11137/2010_2_52-65Anuário do Instituto de Geociências; Vol 33, No 2 (2010); 52-65Anuário do Instituto de Geociências; Vol 33, No 2 (2010); 52-651982-39080101-9759reponame:Anuário do Instituto de Geociências (Online)instname:Universidade Federal do Rio de Janeiro (UFRJ)instacron:UFRJporhttps://revistas.ufrj.br/index.php/aigeo/article/view/6809/5406Copyright (c) 2010 Anuário do Instituto de Geociênciashttp://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessLaut, Lazaro Luiz MattosFerreira, Daniele Esteves da SilvaSantos, Valdenira FerreiraFigueiredo Jr, Alberto GarciaCarvalho, Marcelo de AraújoMachado, Odete Fátima2017-01-23T21:51:15Zoai:www.revistas.ufrj.br:article/6809Revistahttps://revistas.ufrj.br/index.php/aigeo/indexPUBhttps://revistas.ufrj.br/index.php/aigeo/oaianuario@igeo.ufrj.br||1982-39080101-9759opendoar:2017-01-23T21:51:15Anuário do Instituto de Geociências (Online) - Universidade Federal do Rio de Janeiro (UFRJ)false
dc.title.none.fl_str_mv Foraminifera, thecamoebians and palynomorphs as hydrodynamic indicators in Araguari Estuary, Amazonian Coast, Amapá State - Brazil
Foraminíferos, tecamebas e palinomorfos como indicadores da hidrodinâmica no Estuário do Araguari, Costa Amazônica, Estado do Amapá - Brasil
title Foraminifera, thecamoebians and palynomorphs as hydrodynamic indicators in Araguari Estuary, Amazonian Coast, Amapá State - Brazil
spellingShingle Foraminifera, thecamoebians and palynomorphs as hydrodynamic indicators in Araguari Estuary, Amazonian Coast, Amapá State - Brazil
Laut, Lazaro Luiz Mattos
title_short Foraminifera, thecamoebians and palynomorphs as hydrodynamic indicators in Araguari Estuary, Amazonian Coast, Amapá State - Brazil
title_full Foraminifera, thecamoebians and palynomorphs as hydrodynamic indicators in Araguari Estuary, Amazonian Coast, Amapá State - Brazil
title_fullStr Foraminifera, thecamoebians and palynomorphs as hydrodynamic indicators in Araguari Estuary, Amazonian Coast, Amapá State - Brazil
title_full_unstemmed Foraminifera, thecamoebians and palynomorphs as hydrodynamic indicators in Araguari Estuary, Amazonian Coast, Amapá State - Brazil
title_sort Foraminifera, thecamoebians and palynomorphs as hydrodynamic indicators in Araguari Estuary, Amazonian Coast, Amapá State - Brazil
author Laut, Lazaro Luiz Mattos
author_facet Laut, Lazaro Luiz Mattos
Ferreira, Daniele Esteves da Silva
Santos, Valdenira Ferreira
Figueiredo Jr, Alberto Garcia
Carvalho, Marcelo de Araújo
Machado, Odete Fátima
author_role author
author2 Ferreira, Daniele Esteves da Silva
Santos, Valdenira Ferreira
Figueiredo Jr, Alberto Garcia
Carvalho, Marcelo de Araújo
Machado, Odete Fátima
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Laut, Lazaro Luiz Mattos
Ferreira, Daniele Esteves da Silva
Santos, Valdenira Ferreira
Figueiredo Jr, Alberto Garcia
Carvalho, Marcelo de Araújo
Machado, Odete Fátima
description The Araguari estuarine dynamics is singular among traditional models of estuaries under tidal regime due to influence of macrotidal and tidal bore. In order to establish estuarine zones in Araguari according foraminifera, thecamoebians, paliynomorphs and physical-chemistry parameters, sixteen sample stations were established along the estuary. Turbidity and temperature were the environmental parameters which allowed determination of the estuarine gradient. Eighteen species of foraminifera, ten of thecamoebians and fourteen of particulate organic matter types were identified. Cluster analysis in R-mode showed three microorganism assemblages and four palynomorph ones. The CCA analyze shows turbidity and total organic matter with the most influence over foraminiferal and thecamoebians distribution at Araguari. Clustering analysis in Q-mode using all data formed four groups suggesting three estuarine zones in Araguari: Zone I composed of thecamoebian species and continental palynomorphs; Zone II - composed by mangrove foraminifera, thecamoebians and all palynomorph assemblages; and Zone III - composed by mangrove and estuarine foraminifera and all palynomorph assemblages.
publishDate 2010
dc.date.none.fl_str_mv 2010-12-01
dc.type.none.fl_str_mv
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufrj.br/index.php/aigeo/article/view/6809
10.11137/2010_2_52-65
url https://revistas.ufrj.br/index.php/aigeo/article/view/6809
identifier_str_mv 10.11137/2010_2_52-65
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://revistas.ufrj.br/index.php/aigeo/article/view/6809/5406
dc.rights.driver.fl_str_mv Copyright (c) 2010 Anuário do Instituto de Geociências
http://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2010 Anuário do Instituto de Geociências
http://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Federal do Rio de Janeiro
publisher.none.fl_str_mv Universidade Federal do Rio de Janeiro
dc.source.none.fl_str_mv Anuário do Instituto de Geociências; Vol 33, No 2 (2010); 52-65
Anuário do Instituto de Geociências; Vol 33, No 2 (2010); 52-65
1982-3908
0101-9759
reponame:Anuário do Instituto de Geociências (Online)
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