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Cadmium, lead and mercury accumulation in European eel (Anguilla anguilla) from four Mediterranean wetlands: tissue-specific patterns and management implications

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dc.contributor.authorBereziuk Frolova, Elena
dc.contributor.authorPérez Vegas, Alonso
dc.contributor.authorBarcala, Elena
dc.contributor.authorMuñoz Ruiz, María Pilar
dc.contributor.authorRomero García, Diego
dc.contributor.departmentSanidad Animal
dc.contributor.otherFacultades de la UMU::Facultad de Veterinaria
dc.date.accessioned2026-10-02T11:05:17Z
dc.date.available2026-10-02T11:05:17Z
dc.date.copyright© 2026 The Authors
dc.date.issued2026-04-09
dc.description.abstractMultiple factors, including pollutants, have contributed to the decline of the European eel (Anguilla anguilla L.1758) in recent decades. Heavy metals are toxic to marine organisms, yet limited data are available on their occurrence in eels in the Mediterranean region. In this context, muscle, kidney, and liver tissues from 118 European eels collected in four wetlands in southeastern Spain were analysed for cadmium (Cd), lead (Pb), and mercury (Hg), and an Individual Mean Bioaccumulation Index (IMBI) was calculated. Mercury was detected in all samples and Pb in all liver samples. The presence of Pb in muscle and kidney, as well as the presence of Cd in all tissues, varied between wetlands. Metal concentrations differed both between wetlands and among tissues (e.g. higher Cd in kidneys and higher Pb in liver), whereas eel developmental stage and weight were not significant factors. Some eels showed muscle metal concentrations above the legal limit. The sampling site was the main factor influencing IMBI values, with renal IMBI being the most informative tissue-specific index, thus turning IMBI into a useful relative indicator of metal bioaccumulation patterns among wetlands. Wetland bioaccumulation profiles differed even within the same geographical region. No clear link was found between chemical pollution and the ecological quality of wetlands, but metal distribution and bioaccumulation patterns indicated chronic exposure. These findings highlight the urgent need to incorporate specific monitoring and pollution control strategies for each wetland into eel management plans.
dc.formatapplication/pdf
dc.format.extent11
dc.identifier.citationMarine Pollution Bulletin, Vol. 229 (2026): 119702
dc.identifier.doihttps://doi.org/10.1016/j.marpolbul.2026.119702
dc.identifier.eissn1879-3363
dc.identifier.issn0025-326X
dc.identifier.urihttps://hdl.handle.net/10201/257541
dc.languageeng
dc.publisherElsevier
dc.relationThis work was supported by “Programa Estatal de I + D + I Orientada a los Retos de la Sociedad, Ministerio de Ciencia, Innovación y Universidades, Gobierno de España” (grant RTI2018-097228-B-I00).
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0025326X26004893
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectHeavy metals
dc.subjectMediterranean
dc.subjectManagement
dc.subjectWestlands
dc.subjectEuropean eel
dc.subject.odsNo relacionado con ningún objetivo de desarrollo sostenible
dc.titleCadmium, lead and mercury accumulation in European eel (Anguilla anguilla) from four Mediterranean wetlands: tissue-specific patterns and management implications
dc.typeinfo:eu-repo/semantics/article
dc.type.versioninfo:eu-repo/semantics/publishedVersion
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relation.isAuthorOfPublicatione451655c-97c9-4bf1-8f85-338ce2ae9f76
relation.isAuthorOfPublicatione5600063-3079-4275-9892-ff8e48e3b96a
relation.isAuthorOfPublication.latestForDiscoveryc9831311-a96d-43e0-869a-4f6bfde264ed
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