Integrated assessment of metal contamination in sediments from two tropical estuaries

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dc.contributor.authorKrull, Marcos
dc.contributor.authorAbessa, Denis M. S. [UNESP]
dc.contributor.authorHatje, Vanessa
dc.contributor.authorBarros, Francisco
dc.contributor.institutionUniversidade Federal da Bahia (UFBA)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-12-03T13:11:25Z
dc.date.available2014-12-03T13:11:25Z
dc.date.issued2014-08-01
dc.description.abstractIn order to evaluate if sediment metal contamination is responsible for benthic degradation and identify possible reference sites in Todos os Santos Bay (TSB), comparisons between a highly impacted (Subae) and less impacted (Jaguaripe) estuarine systems were made based on (i) field assessment of macrobenthic assemblage, (ii) sediment metal concentrations and (iii) chronic toxicity test with the tropical copepod Nitokra sp. Data were integrated by multivariate analysis (BIOENV and PCA) and the ratio-to-mean (RTMe) approach. Estuaries were divided into four different salinity zones to avoid misclassification of benthic conditions. Salinity was the main variable correlated to the benthic distribution in both estuaries, indicating that categories based on salinity features seem to be suitable in TSB. Correspondence among lines of evidence differed in low and high metal contaminated systems. Chronic toxicity was found along both the entire systems, being considerably higher in Jaguaripe. However, there was no clear evidence of metal contamination and benthic alteration in most stations of Jaguaripe. Although the concentrations of Sr and Cu were correlated to the benthic assemblage in Jaguaripe, it is unlikely that toxicity has been caused by these elements. The benthic assemblage distribution of Jaguaripe seems to be rather related to natural stressful conditions of transitional waters. Even though the Jaguaripe estuary might not be pristine, it can be used as a reference estuary for benthic assessment in TSB. Regarding the Subae estuary, toxicity and Zn were also correlated to the benthic assemblage and most stations showed signs of benthic alteration and metal contamination. All lines of evidence were in agreement providing evidences that metal contamination might be responsible for benthic degradation in Subae. (C) 2014 Elsevier Inc. All rights reserved.en
dc.description.affiliationUniv Fed Bahia, Inst Biol, PPGEcoBio, Lab Ecol Benton, BR-40170115 Salvador, BA, Brazil
dc.description.affiliationUNESP, Nucleo Estudos Sobre Poluicao & Ecotoxicol Aquat, Sao Vicente, SP, Brazil
dc.description.affiliationUniv Fed Bahia, INCT Ambientes Marinhos Trop, Inst Quim, Lab Oceanog Quim, BR-40170115 Salvador, BA, Brazil
dc.description.affiliationUnespUNESP, Nucleo Estudos Sobre Poluicao & Ecotoxicol Aquat, Sao Vicente, SP, Brazil
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipFAPESB
dc.description.sponsorshipINOMEP-PRONEX
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipIdCNPq: 303897/2011-2
dc.description.sponsorshipIdCNPq: 239978/2012-9
dc.description.sponsorshipIdCNPq: 304528/2010-2
dc.description.sponsorshipIdFAPESBPET0034/2012
dc.description.sponsorshipIdINOMEP-PRONEXPNX 0016/2009
dc.format.extent195-203
dc.identifierhttp://dx.doi.org/10.1016/j.ecoenv.2014.04.038
dc.identifier.citationEcotoxicology And Environmental Safety. San Diego: Academic Press Inc Elsevier Science, v. 106, p. 195-203, 2014.
dc.identifier.doi10.1016/j.ecoenv.2014.04.038
dc.identifier.issn0147-6513
dc.identifier.urihttp://hdl.handle.net/11449/113099
dc.identifier.wosWOS:000337643800026
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofEcotoxicology and Environmental Safety
dc.relation.ispartofjcr3.974
dc.relation.ispartofsjr1,201
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectSediment quality triaden
dc.subjectJaguaripeen
dc.subjectSubaeen
dc.subjectNitokraen
dc.subjectReference sitesen
dc.titleIntegrated assessment of metal contamination in sediments from two tropical estuariesen
dc.typeArtigo
dcterms.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dcterms.rightsHolderElsevier B.V.
unesp.author.orcid0000-0002-3037-1991[4]
unesp.author.orcid0000-0003-4609-1668[2]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, São Vicentept

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