Effect of dissolved organic matter (DOM) of contrasting origins in Cu and Pb speciation and toxicity to Paracentrotus lividus larvae

Original research paper

Detalles Bibliográficos
Autores: Sánchez-Marín, Paula, Santos-Echeandía, Juan, Nieto-Cid, Mar, Álvarez-Salgado, Xosé Antón, Beiras, R.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2010
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/316265
Acceso en línea:http://hdl.handle.net/10261/316265
Access Level:acceso abierto
Palabra clave:Medio Marino
DOC
Centro Oceanográfico de A Coruña
CDOM
Metal speciation
Anodic stripping voltammetry
Bioavailability
Sea urchin bioassay
fish
licensing
dissolved organic matter
toxicology
organic matter
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spelling Effect of dissolved organic matter (DOM) of contrasting origins in Cu and Pb speciation and toxicity to Paracentrotus lividus larvaeSánchez-Marín, PaulaSantos-Echeandía, JuanNieto-Cid, MarÁlvarez-Salgado, Xosé AntónBeiras, R.Medio MarinoDOCCentro Oceanográfico de A CoruñaCDOMMetal speciationAnodic stripping voltammetryBioavailabilitySea urchin bioassayfishlicensingdissolved organic mattertoxicologyorganic matterOriginal research paperWater samples of contrasting origin, including natural seawater, two sediment elutriates and sewage-influenced seawater, were collected and obtained to examine the effect of the dissolved organic matter(DOM) present on metal bioavailability. The carbon content (DOC) and the optical properties (absorbanceand fluorescence) of the coloured DOM fraction (CDOM) of these materials were determined. Cu and Pbcomplexation properties were measured by anodic stripping voltammetry (ASV) and the effect of DOMon Cu and Pb bioavailability was studied by means of theParacentrotus lividusembryo-larval bioassay.Sediment elutriates and sewage-influenced water (1) were enriched 1.4–1.7 times in DOC; (2) absorbedand reemitted more light; and (3) presented higher Cu complexation capacities (LCu) than the naturalseawater used for their preparation.LCuvaried from 0.08 M in natural seawater to 0.3 and 0.5 Min sediment elutriates and sewage-influenced water, respectively. Differences in DOC, CDOM and Cucomplexation capacities were reflected in Cu toxicity. DOM enriched samples presented a Cu EC50of0.64 M, significantly higher than the Cu EC50of natural and artificial seawater, which was 0.38 M. Theprotecting effect of DOM on Cu toxicity greatly disappeared when the samples were irradiated with highintensity UV-light. Cu toxicity could be successfully predicted considering ASV-labile Cu concentrationsin the samples. Pb complexation by DOM was only detected in the DOM-enriched samples and causedlittle effect on Pb EC50. This effect was contrary for both elutriates: one elutriate reduced Pb toxicity incomparisonwiththecontrolartificialseawater,whiletheotherincreasedit.UVirradiationofthesamplescaused a marked increase in Pb toxicity, which correlated with the remaining DOC concentration. DOMparameterswererelatedtoCuspeciationandtoxicity:goodcorrelationswerefoundbetweenDOCandCuEC50, whileLCucorrelated better with the fluorescence of marine humic substances. The present resultsstress the importance of characterizing not only the amount but also the quality of seawater DOM tobetter predict ecological effects from total metal concentration dataSpanish Ministry of Education and Science (CTM2006-13880-C03-01/MAR), Xunta of Galicia (PGIDIT-05MA40201) and Basque Government (predoctoral grant)SI202320232010info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/316265reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésCentro Oceanográfico de A Coruñahttps://www.sciencedirect.com/search?qs=Effect%20of%20DOM%20of%20contrasting%20origins&pub=Aquatic%20Toxicology&cid=271226info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3162652026-05-22T06:33:51Z
dc.title.none.fl_str_mv Effect of dissolved organic matter (DOM) of contrasting origins in Cu and Pb speciation and toxicity to Paracentrotus lividus larvae
title Effect of dissolved organic matter (DOM) of contrasting origins in Cu and Pb speciation and toxicity to Paracentrotus lividus larvae
spellingShingle Effect of dissolved organic matter (DOM) of contrasting origins in Cu and Pb speciation and toxicity to Paracentrotus lividus larvae
Sánchez-Marín, Paula
Medio Marino
DOC
Centro Oceanográfico de A Coruña
CDOM
Metal speciation
Anodic stripping voltammetry
Bioavailability
Sea urchin bioassay
fish
licensing
dissolved organic matter
toxicology
organic matter
title_short Effect of dissolved organic matter (DOM) of contrasting origins in Cu and Pb speciation and toxicity to Paracentrotus lividus larvae
title_full Effect of dissolved organic matter (DOM) of contrasting origins in Cu and Pb speciation and toxicity to Paracentrotus lividus larvae
title_fullStr Effect of dissolved organic matter (DOM) of contrasting origins in Cu and Pb speciation and toxicity to Paracentrotus lividus larvae
title_full_unstemmed Effect of dissolved organic matter (DOM) of contrasting origins in Cu and Pb speciation and toxicity to Paracentrotus lividus larvae
title_sort Effect of dissolved organic matter (DOM) of contrasting origins in Cu and Pb speciation and toxicity to Paracentrotus lividus larvae
dc.creator.none.fl_str_mv Sánchez-Marín, Paula
Santos-Echeandía, Juan
Nieto-Cid, Mar
Álvarez-Salgado, Xosé Antón
Beiras, R.
author Sánchez-Marín, Paula
author_facet Sánchez-Marín, Paula
Santos-Echeandía, Juan
Nieto-Cid, Mar
Álvarez-Salgado, Xosé Antón
Beiras, R.
author_role author
author2 Santos-Echeandía, Juan
Nieto-Cid, Mar
Álvarez-Salgado, Xosé Antón
Beiras, R.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Medio Marino
DOC
Centro Oceanográfico de A Coruña
CDOM
Metal speciation
Anodic stripping voltammetry
Bioavailability
Sea urchin bioassay
fish
licensing
dissolved organic matter
toxicology
organic matter
topic Medio Marino
DOC
Centro Oceanográfico de A Coruña
CDOM
Metal speciation
Anodic stripping voltammetry
Bioavailability
Sea urchin bioassay
fish
licensing
dissolved organic matter
toxicology
organic matter
description Original research paper
publishDate 2010
dc.date.none.fl_str_mv 2010
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/316265
url http://hdl.handle.net/10261/316265
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Centro Oceanográfico de A Coruña
https://www.sciencedirect.com/search?qs=Effect%20of%20DOM%20of%20contrasting%20origins&pub=Aquatic%20Toxicology&cid=271226
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869411953809555456
score 15.812429

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