Dissolved inorganic nutrients and chlorophyll on the narrow continental shelf of Eastern Brazil

Detalhes bibliográficos
Autor(a) principal: Eça, Gilmara Fernandes
Data de Publicação: 2014
Outros Autores: Lopes, Joselene Badú de Brito Santos, Souza, Marcelo Friederichs Landim de, Belém, André Luiz
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Oceanography
Texto Completo: https://www.revistas.usp.br/bjoce/article/view/83710
Resumo: A plataforma Leste do Brasil é estreita e sofre influência de um sistema de correntes de borda oeste, apresentando baixa produtividade biológica em comparação com outras regiões. Neste estudo, a distribuição de massas de água, nutrientes inorgânicos dissolvidos, clorofila-a e sólidos suspensos totais (SST) na plataforma interna (
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spelling Dissolved inorganic nutrients and chlorophyll on the narrow continental shelf of Eastern Brazil A plataforma Leste do Brasil é estreita e sofre influência de um sistema de correntes de borda oeste, apresentando baixa produtividade biológica em comparação com outras regiões. Neste estudo, a distribuição de massas de água, nutrientes inorgânicos dissolvidos, clorofila-a e sólidos suspensos totais (SST) na plataforma interna ( The eastern Brazilian continental shelf is narrow and subject to the influence of a western boundary current system, presenting lower biological productivity than other regions. In this study, the distribution of water masses, dissolved inorganic nutrients, chlorophyll-a and total suspended solids (TSS) on the inner shelf (< 35 m depth), between Itacaré and Canavieiras, eastern Brazil, is presented. Sampling surveys were carried out in March and August 2006 and March 2007. Tropical water (TW) prevailed during March 2006 and August 2007 with the lower salinity waters (< 36) found in most samples taken in March 2007, reflecting the influence of continental outflow and rain in coastal waters. Low concentrations of dissolved inorganic nutrients and Chl-a found were typical of TW and results suggested that the inner shelf waters were depleted in dissolved inorganic nitrogen in August 2006 and March 2007, and in phosphate in March 2006, potentially affecting phytoplankton growth. Stratification of the water column was observed due to differences in dissolved nutrient concentrations, chlorophyll-a and TSS when comparing surface and bottom samples, possibly the result of a colder water intrusion and mixing on the bottom shelf and a deep chlorophyll maximum and/or sediment resuspension effect. Despite this stratification, oceanographic processes such as lateral mixing driven by the Brazil Current as well as a northward alongshore drift driven by winds and tides transporting Coastal Water can lead to an enhanced mixing of these waters promoting some heterogeneity in this oligotrophic environment. Universidade de São Paulo. Instituto Oceanográfico2014-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/bjoce/article/view/8371010.1590/s1679-87592014051306201Brazilian Journal of Oceanography; Vol. 62 Núm. 1 (2014); 11-21Brazilian Journal of Oceanography; v. 62 n. 1 (2014); 11-21Brazilian Journal of Oceanography; Vol. 62 No. 1 (2014); 11-211982-436X1679-8759reponame:Brazilian Journal of Oceanographyinstname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/bjoce/article/view/83710/86618Eça, Gilmara FernandesLopes, Joselene Badú de Brito SantosSouza, Marcelo Friederichs Landim deBelém, André Luizinfo:eu-repo/semantics/openAccess2014-08-12T20:12:59Zoai:revistas.usp.br:article/83710Revistahttps://www.revistas.usp.br/bjoce/indexPUBhttps://www.revistas.usp.br/bjoce/oaiio@usp.br||io@usp.br1982-436X1679-8759opendoar:2014-08-12T20:12:59Brazilian Journal of Oceanography - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Dissolved inorganic nutrients and chlorophyll on the narrow continental shelf of Eastern Brazil
title Dissolved inorganic nutrients and chlorophyll on the narrow continental shelf of Eastern Brazil
spellingShingle Dissolved inorganic nutrients and chlorophyll on the narrow continental shelf of Eastern Brazil
Eça, Gilmara Fernandes
title_short Dissolved inorganic nutrients and chlorophyll on the narrow continental shelf of Eastern Brazil
title_full Dissolved inorganic nutrients and chlorophyll on the narrow continental shelf of Eastern Brazil
title_fullStr Dissolved inorganic nutrients and chlorophyll on the narrow continental shelf of Eastern Brazil
title_full_unstemmed Dissolved inorganic nutrients and chlorophyll on the narrow continental shelf of Eastern Brazil
title_sort Dissolved inorganic nutrients and chlorophyll on the narrow continental shelf of Eastern Brazil
author Eça, Gilmara Fernandes
author_facet Eça, Gilmara Fernandes
Lopes, Joselene Badú de Brito Santos
Souza, Marcelo Friederichs Landim de
Belém, André Luiz
author_role author
author2 Lopes, Joselene Badú de Brito Santos
Souza, Marcelo Friederichs Landim de
Belém, André Luiz
author2_role author
author
author
dc.contributor.author.fl_str_mv Eça, Gilmara Fernandes
Lopes, Joselene Badú de Brito Santos
Souza, Marcelo Friederichs Landim de
Belém, André Luiz
description A plataforma Leste do Brasil é estreita e sofre influência de um sistema de correntes de borda oeste, apresentando baixa produtividade biológica em comparação com outras regiões. Neste estudo, a distribuição de massas de água, nutrientes inorgânicos dissolvidos, clorofila-a e sólidos suspensos totais (SST) na plataforma interna (
publishDate 2014
dc.date.none.fl_str_mv 2014-03-01
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://www.revistas.usp.br/bjoce/article/view/83710
10.1590/s1679-87592014051306201
url https://www.revistas.usp.br/bjoce/article/view/83710
identifier_str_mv 10.1590/s1679-87592014051306201
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://www.revistas.usp.br/bjoce/article/view/83710/86618
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade de São Paulo. Instituto Oceanográfico
publisher.none.fl_str_mv Universidade de São Paulo. Instituto Oceanográfico
dc.source.none.fl_str_mv Brazilian Journal of Oceanography; Vol. 62 Núm. 1 (2014); 11-21
Brazilian Journal of Oceanography; v. 62 n. 1 (2014); 11-21
Brazilian Journal of Oceanography; Vol. 62 No. 1 (2014); 11-21
1982-436X
1679-8759
reponame:Brazilian Journal of Oceanography
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Brazilian Journal of Oceanography
collection Brazilian Journal of Oceanography
repository.name.fl_str_mv Brazilian Journal of Oceanography - Universidade de São Paulo (USP)
repository.mail.fl_str_mv io@usp.br||io@usp.br
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