Environmental water quality assessment in Guaratuba bay, state of Paraná, southern Brazil
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da FURG (RI FURG) |
Texto Completo: | http://repositorio.furg.br/handle/1/5602 |
Resumo: | An environmental assessment of the estuarine waters of Guaratuba bay, Paraná State, Brazil, is provided through the analysis of physical-chemical, biological and hydrographic dynamics. Twelve stations with a bi-monthly frequency (from October/2002 until August/2003) were sampled during spring and neap tides for the determination of pH, Secchi depth, CO2 saturation, dissolved oxygen, chlorophyll, suspended particulate matter and dissolved inorganic nutrients (nitrate, nitrite, ammonium, phosphate and silicate). Based on the evaluation of six parameters (chlorophyll, Secchi depth, CO2 saturation, dissolved inorganic nitrogen and phosphorus and dissolved oxygen), Guaratuba Bay shows a low to medium trophic status, i.e. from meso- to oligotrophic, and a predominant heterotrophic metabolism, meaning that respiration overcomes primary production. Horizontal stratification was observed during the rainy season, while during the dry season the system showed more homogeneous conditions. Inorganic and/or organic matter in Guaratuba Bay seem to be controlled mainly by the seasonality of precipitation and/ also by ebb and flood tidal phase variations. |
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Environmental water quality assessment in Guaratuba bay, state of Paraná, southern BrazilWater qualityHydrodynamicsNutrientsSpatial and temporal variationGuaratuba bayQualidade de águaHidrodinâmicaNutrientesVariação espaço-temporalBaía de GuaratubaAn environmental assessment of the estuarine waters of Guaratuba bay, Paraná State, Brazil, is provided through the analysis of physical-chemical, biological and hydrographic dynamics. Twelve stations with a bi-monthly frequency (from October/2002 until August/2003) were sampled during spring and neap tides for the determination of pH, Secchi depth, CO2 saturation, dissolved oxygen, chlorophyll, suspended particulate matter and dissolved inorganic nutrients (nitrate, nitrite, ammonium, phosphate and silicate). Based on the evaluation of six parameters (chlorophyll, Secchi depth, CO2 saturation, dissolved inorganic nitrogen and phosphorus and dissolved oxygen), Guaratuba Bay shows a low to medium trophic status, i.e. from meso- to oligotrophic, and a predominant heterotrophic metabolism, meaning that respiration overcomes primary production. Horizontal stratification was observed during the rainy season, while during the dry season the system showed more homogeneous conditions. Inorganic and/or organic matter in Guaratuba Bay seem to be controlled mainly by the seasonality of precipitation and/ also by ebb and flood tidal phase variations.A dinâmica das variáveis físico-químicas, biológicas e hidrográficas, em escalas temporal e espacial, sua variabilidade e tendências, permite avaliar a qualidade ambiental de estuários. Esse trabalho descreve as flutuações da qualidade de água da Baía de Guaratuba, sul do Estado do Paraná. Foram amostrados doze pontos em campanhas bimensais (outubro/2002 a agosto/2003), em situação de sizígia e de quadratura, para a análise das variáveis pH, transparência, saturação de CO2, oxigênio dissolvido, clorofila-a, material particulado em suspensão e nutrientes inorgânicos dissolvidos (nitrato, nitrito, amônio, fosfato e silicato). Considerando as seis variáveis descritoras da qualidade de água (clorofila-a, profundidade de Secchi, saturação de CO2, fósforo e nitrogênio inorgânicos dissolvidos e oxigênio dissolvido), observou-se que a Baía apresentou estado trófico médio para baixo, i.e. de meso para oligotrófico, e que o seu metabolismo é predominantemente heterotrófico, ou seja, os processos de respiração superam os de produção. Foi verificada uma maior estratificação horizontal durante o período chuvoso e características relativamente mais homogêneas durante a estação mais seca. A qualidade da água na baía de Guaratuba parece ser controlada mais pelos aportes de material inorgânico e/ou orgânico associados a pluviosidade e/ou por variações com as fases de maré vazante e enchente.2015-12-13T20:31:47Z2015-12-13T20:31:47Z2012info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfMIZERKOWSKI, Byanka Damian et al. Environmental water quality assessment in Guaratuba bay, state of Paraná, southern Brazil. Brazilian Journal of Oceanography, v. 60, n. 2, p. 109-115, 2012. Disponível em: <http://www.scielo.br/scielo.php?pid=S1679-87592012000200001&script=sci_arttext>. Acesso em 25 out 2015.1982-436Xhttp://repositorio.furg.br/handle/1/560210.1590/S1679-87592012000200001engMizerkowski, Byanka DamianMachado, Eunice da CostaBrandini, NilvaNazario, Mariana GallucciBonfim, Kleber Vieirainfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FURG (RI FURG)instname:Universidade Federal do Rio Grande (FURG)instacron:FURG2015-12-13T20:31:47Zoai:repositorio.furg.br:1/5602Repositório InstitucionalPUBhttps://repositorio.furg.br/oai/request || http://200.19.254.174/oai/requestopendoar:2015-12-13T20:31:47Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)false |
dc.title.none.fl_str_mv |
Environmental water quality assessment in Guaratuba bay, state of Paraná, southern Brazil |
title |
Environmental water quality assessment in Guaratuba bay, state of Paraná, southern Brazil |
spellingShingle |
Environmental water quality assessment in Guaratuba bay, state of Paraná, southern Brazil Mizerkowski, Byanka Damian Water quality Hydrodynamics Nutrients Spatial and temporal variation Guaratuba bay Qualidade de água Hidrodinâmica Nutrientes Variação espaço-temporal Baía de Guaratuba |
title_short |
Environmental water quality assessment in Guaratuba bay, state of Paraná, southern Brazil |
title_full |
Environmental water quality assessment in Guaratuba bay, state of Paraná, southern Brazil |
title_fullStr |
Environmental water quality assessment in Guaratuba bay, state of Paraná, southern Brazil |
title_full_unstemmed |
Environmental water quality assessment in Guaratuba bay, state of Paraná, southern Brazil |
title_sort |
Environmental water quality assessment in Guaratuba bay, state of Paraná, southern Brazil |
author |
Mizerkowski, Byanka Damian |
author_facet |
Mizerkowski, Byanka Damian Machado, Eunice da Costa Brandini, Nilva Nazario, Mariana Gallucci Bonfim, Kleber Vieira |
author_role |
author |
author2 |
Machado, Eunice da Costa Brandini, Nilva Nazario, Mariana Gallucci Bonfim, Kleber Vieira |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Mizerkowski, Byanka Damian Machado, Eunice da Costa Brandini, Nilva Nazario, Mariana Gallucci Bonfim, Kleber Vieira |
dc.subject.por.fl_str_mv |
Water quality Hydrodynamics Nutrients Spatial and temporal variation Guaratuba bay Qualidade de água Hidrodinâmica Nutrientes Variação espaço-temporal Baía de Guaratuba |
topic |
Water quality Hydrodynamics Nutrients Spatial and temporal variation Guaratuba bay Qualidade de água Hidrodinâmica Nutrientes Variação espaço-temporal Baía de Guaratuba |
description |
An environmental assessment of the estuarine waters of Guaratuba bay, Paraná State, Brazil, is provided through the analysis of physical-chemical, biological and hydrographic dynamics. Twelve stations with a bi-monthly frequency (from October/2002 until August/2003) were sampled during spring and neap tides for the determination of pH, Secchi depth, CO2 saturation, dissolved oxygen, chlorophyll, suspended particulate matter and dissolved inorganic nutrients (nitrate, nitrite, ammonium, phosphate and silicate). Based on the evaluation of six parameters (chlorophyll, Secchi depth, CO2 saturation, dissolved inorganic nitrogen and phosphorus and dissolved oxygen), Guaratuba Bay shows a low to medium trophic status, i.e. from meso- to oligotrophic, and a predominant heterotrophic metabolism, meaning that respiration overcomes primary production. Horizontal stratification was observed during the rainy season, while during the dry season the system showed more homogeneous conditions. Inorganic and/or organic matter in Guaratuba Bay seem to be controlled mainly by the seasonality of precipitation and/ also by ebb and flood tidal phase variations. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012 2015-12-13T20:31:47Z 2015-12-13T20:31:47Z |
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 |
MIZERKOWSKI, Byanka Damian et al. Environmental water quality assessment in Guaratuba bay, state of Paraná, southern Brazil. Brazilian Journal of Oceanography, v. 60, n. 2, p. 109-115, 2012. Disponível em: <http://www.scielo.br/scielo.php?pid=S1679-87592012000200001&script=sci_arttext>. Acesso em 25 out 2015. 1982-436X http://repositorio.furg.br/handle/1/5602 10.1590/S1679-87592012000200001 |
identifier_str_mv |
MIZERKOWSKI, Byanka Damian et al. Environmental water quality assessment in Guaratuba bay, state of Paraná, southern Brazil. Brazilian Journal of Oceanography, v. 60, n. 2, p. 109-115, 2012. Disponível em: <http://www.scielo.br/scielo.php?pid=S1679-87592012000200001&script=sci_arttext>. Acesso em 25 out 2015. 1982-436X 10.1590/S1679-87592012000200001 |
url |
http://repositorio.furg.br/handle/1/5602 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
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.source.none.fl_str_mv |
reponame:Repositório Institucional da FURG (RI FURG) instname:Universidade Federal do Rio Grande (FURG) instacron:FURG |
instname_str |
Universidade Federal do Rio Grande (FURG) |
instacron_str |
FURG |
institution |
FURG |
reponame_str |
Repositório Institucional da FURG (RI FURG) |
collection |
Repositório Institucional da FURG (RI FURG) |
repository.name.fl_str_mv |
Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG) |
repository.mail.fl_str_mv |
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1807384377165873152 |