Evaluation of the potential of the common cockle (cerastoderma edule l.) for the ecological risk assessment of estuarine sediments: Bioaccumulation and biomarkers
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.2/11148 |
Resumo: | Common cockles (Cerastoderma edule, L. 1758, Bivalvia: Cardiidae) were subjected to a laboratory assay with sediments collected from distinct sites of the Sado Estuary (Portugal). Cockles were obtained from a mariculture site of the Sado Estuary and exposed through 28-day, semi-static, assays to sediments collected from three sites of the estuary. Sediments from these sites revealed different physico-chemical properties and levels of metals and organic contaminants, ranging from unimpacted (the reference site) to moderately impacted, when compared to available sediment quality guidelines. Cockles were surveyed for bioaccumulation of trace elements (Ni, Cu, Zn, As, Cd and Pb) and organic contaminants (PAHs, PCBs and DDTs). Two sets of potential biomarkers were employed to assess toxicity: whole-body metallothionein (MT) induction and digestive gland histopathology. The bioaccumulation factor and the biota-to-soil accumulation factor were estimated as ecological indices of exposure to metals and organic compounds. From the results it is inferred that C. edule responds to sediment-bound contamination and might, therefore, be suitable for biomonitoring. The species was found capable to regulate and eliminate both types of contaminants. Still, the sediment contamination levels do not account for all the variation in bioaccumulation and MT levels, which may result from the moderate metal concentrations found in sediments, the species’ intrinsic resistance to pollution and from yet unexplained xenobiotic interaction effects. |
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Evaluation of the potential of the common cockle (cerastoderma edule l.) for the ecological risk assessment of estuarine sediments: Bioaccumulation and biomarkersCerastoderma eduleSado estuarySediment contaminantsBAF and BSAFMetallothioneinHistopathologyODS::14:Proteger a Vida MarinhaCommon cockles (Cerastoderma edule, L. 1758, Bivalvia: Cardiidae) were subjected to a laboratory assay with sediments collected from distinct sites of the Sado Estuary (Portugal). Cockles were obtained from a mariculture site of the Sado Estuary and exposed through 28-day, semi-static, assays to sediments collected from three sites of the estuary. Sediments from these sites revealed different physico-chemical properties and levels of metals and organic contaminants, ranging from unimpacted (the reference site) to moderately impacted, when compared to available sediment quality guidelines. Cockles were surveyed for bioaccumulation of trace elements (Ni, Cu, Zn, As, Cd and Pb) and organic contaminants (PAHs, PCBs and DDTs). Two sets of potential biomarkers were employed to assess toxicity: whole-body metallothionein (MT) induction and digestive gland histopathology. The bioaccumulation factor and the biota-to-soil accumulation factor were estimated as ecological indices of exposure to metals and organic compounds. From the results it is inferred that C. edule responds to sediment-bound contamination and might, therefore, be suitable for biomonitoring. The species was found capable to regulate and eliminate both types of contaminants. Still, the sediment contamination levels do not account for all the variation in bioaccumulation and MT levels, which may result from the moderate metal concentrations found in sediments, the species’ intrinsic resistance to pollution and from yet unexplained xenobiotic interaction effects.Repositório AbertoLobo, JorgeCosta, Pedro M.Caeiro, SandraMartins, MartaFerreira, Ana M.Caetano, MiguelCesário, RuteVale, CarlosCosta, Maria Helena2021-09-29T13:13:07Z20102021-09-20T09:49:42Z2010-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.2/11148eng0963-9292cv-prod-7457110.1007/s10646-010-0535-71573-30172-s2.0-79952278633info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-16T15:38:09Zoai:repositorioaberto.uab.pt:10400.2/11148Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T22:50:37.070858Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Evaluation of the potential of the common cockle (cerastoderma edule l.) for the ecological risk assessment of estuarine sediments: Bioaccumulation and biomarkers |
title |
Evaluation of the potential of the common cockle (cerastoderma edule l.) for the ecological risk assessment of estuarine sediments: Bioaccumulation and biomarkers |
spellingShingle |
Evaluation of the potential of the common cockle (cerastoderma edule l.) for the ecological risk assessment of estuarine sediments: Bioaccumulation and biomarkers Lobo, Jorge Cerastoderma edule Sado estuary Sediment contaminants BAF and BSAF Metallothionein Histopathology ODS::14:Proteger a Vida Marinha |
title_short |
Evaluation of the potential of the common cockle (cerastoderma edule l.) for the ecological risk assessment of estuarine sediments: Bioaccumulation and biomarkers |
title_full |
Evaluation of the potential of the common cockle (cerastoderma edule l.) for the ecological risk assessment of estuarine sediments: Bioaccumulation and biomarkers |
title_fullStr |
Evaluation of the potential of the common cockle (cerastoderma edule l.) for the ecological risk assessment of estuarine sediments: Bioaccumulation and biomarkers |
title_full_unstemmed |
Evaluation of the potential of the common cockle (cerastoderma edule l.) for the ecological risk assessment of estuarine sediments: Bioaccumulation and biomarkers |
title_sort |
Evaluation of the potential of the common cockle (cerastoderma edule l.) for the ecological risk assessment of estuarine sediments: Bioaccumulation and biomarkers |
author |
Lobo, Jorge |
author_facet |
Lobo, Jorge Costa, Pedro M. Caeiro, Sandra Martins, Marta Ferreira, Ana M. Caetano, Miguel Cesário, Rute Vale, Carlos Costa, Maria Helena |
author_role |
author |
author2 |
Costa, Pedro M. Caeiro, Sandra Martins, Marta Ferreira, Ana M. Caetano, Miguel Cesário, Rute Vale, Carlos Costa, Maria Helena |
author2_role |
author author author author author author author author |
dc.contributor.none.fl_str_mv |
Repositório Aberto |
dc.contributor.author.fl_str_mv |
Lobo, Jorge Costa, Pedro M. Caeiro, Sandra Martins, Marta Ferreira, Ana M. Caetano, Miguel Cesário, Rute Vale, Carlos Costa, Maria Helena |
dc.subject.por.fl_str_mv |
Cerastoderma edule Sado estuary Sediment contaminants BAF and BSAF Metallothionein Histopathology ODS::14:Proteger a Vida Marinha |
topic |
Cerastoderma edule Sado estuary Sediment contaminants BAF and BSAF Metallothionein Histopathology ODS::14:Proteger a Vida Marinha |
description |
Common cockles (Cerastoderma edule, L. 1758, Bivalvia: Cardiidae) were subjected to a laboratory assay with sediments collected from distinct sites of the Sado Estuary (Portugal). Cockles were obtained from a mariculture site of the Sado Estuary and exposed through 28-day, semi-static, assays to sediments collected from three sites of the estuary. Sediments from these sites revealed different physico-chemical properties and levels of metals and organic contaminants, ranging from unimpacted (the reference site) to moderately impacted, when compared to available sediment quality guidelines. Cockles were surveyed for bioaccumulation of trace elements (Ni, Cu, Zn, As, Cd and Pb) and organic contaminants (PAHs, PCBs and DDTs). Two sets of potential biomarkers were employed to assess toxicity: whole-body metallothionein (MT) induction and digestive gland histopathology. The bioaccumulation factor and the biota-to-soil accumulation factor were estimated as ecological indices of exposure to metals and organic compounds. From the results it is inferred that C. edule responds to sediment-bound contamination and might, therefore, be suitable for biomonitoring. The species was found capable to regulate and eliminate both types of contaminants. Still, the sediment contamination levels do not account for all the variation in bioaccumulation and MT levels, which may result from the moderate metal concentrations found in sediments, the species’ intrinsic resistance to pollution and from yet unexplained xenobiotic interaction effects. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010 2010-01-01T00:00:00Z 2021-09-29T13:13:07Z 2021-09-20T09:49:42Z |
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 |
http://hdl.handle.net/10400.2/11148 |
url |
http://hdl.handle.net/10400.2/11148 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0963-9292 cv-prod-74571 10.1007/s10646-010-0535-7 1573-3017 2-s2.0-79952278633 |
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 |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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