Publication:
Comparative study of immunological biomarkers in the carpet shell clams (Ruditapes decussatus) from metal‑contaminated sites in the South Lagoon of Tunis (Tunisia)

dc.contributor.authorMansour, Chalbia
dc.contributor.authorEsteban Abad, María de los Ángeles
dc.contributor.authorRouane Hacene, Omar
dc.contributor.authorSaidane Mosbahi, Dalila
dc.contributor.authorGuardiola Abellán, Francisco Antonio
dc.contributor.departmentBiología Celular e Histología
dc.contributor.otherFacultad de Biología
dc.date.accessioned2026-01-29T08:34:42Z
dc.date.available2026-01-29T08:34:42Z
dc.date.copyright© 2022, The Author(s)
dc.date.issued2022-09-14
dc.description.abstractThe South Lagoon of Tunis (Tunisia) is a Mediterranean lagoon adversely affected by industrial contaminants, harbour activity and untreated urban sewage. In this lagoon, the clam Ruditapes decussatus has been widely used as a biomonitor of seawater pollution through measurements of parameters related to oxidative stress and neurotoxicity. However, few studies have considered parameters of the immune system of this species in the South Lagoon of Tunis. Therefore, the aim of the present work was to evaluate several immune-related parameters in the cell-free haemolymph of carpet shell clams sampled during August and February from three polluted sites in the South Lagoon of Tunis (S1, S2 and S3) and one less polluted site as a reference site (RS) in order to identify suitable biomarkers for environmental quality assessments of this ecosystem. Concerning the immune-related parameters, seasonal factors modulated phenoloxidase, lysozyme, protease and esterase activity, with lower values measured for samples collected in August than for samples collected in February. In fact, bactericidal activity against two of the pathogenic bacteria tested and the activity of most immune-related enzymes were reduced in the cell-free haemolymph of clams collected from the most sampling sites in August compared to February one. In addition, values of abiotic parameters (temperature, salinity and pH) and metal (cadmium, copper, iron, lead and zinc) concentrations in the clams’ soft tissues, previously obtained and published by the authors, as well as the values of immune-related parameters were integrated using principal component analyses. Results indicated that the values of all measured immune-related parameters were negatively correlated with the temperature values and the variations most of these parameters highlighted that the chemical industrial area (S3) was the most impacted location within the South Lagoon of Tunis. The present study illustrates that the immune-related parameters measured in carpet shell clam cell-free haemolymph represent suitable biomarkers for environmental quality assessments because they provide effective seasonal and spatial discrimination.
dc.formatapplication/pdf
dc.format.extent16
dc.identifier.citationEnvironmental Science and Pollution Research (2023) 30:12059–12074
dc.identifier.doihttps://doi.org/10.1007/s11356-022-22902-3
dc.identifier.eissn1614-7499
dc.identifier.issn0944-1344
dc.identifier.urihttp://hdl.handle.net/10201/196309
dc.languageeng
dc.publisherSpringer
dc.relationThis study received funding from (1) the Ministry of Scientific Research and Technology (Tunisia); (2) the University of Monastir (Tunisia); and (3) Fundación Séneca de la Región de Murcia (Grupo de Excelencia Grant no. 19883/GERM/15).
dc.relation.publisherversionhttps://link.springer.com/article/10.1007/s11356-022-22902-3
dc.rightsAttribution 4.0 International*
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectBiomonitoring
dc.subjectInnate immunity
dc.subjectSeasonality
dc.subjectMetal contamination
dc.subjectSouth Lagoon of Tunis
dc.subjectCarpet shell clam (Ruditapes decussatus)
dc.subjectBiomarkers
dc.subject.odsNo relacionado con ningún objetivo de desarrollo sostenible
dc.titleComparative study of immunological biomarkers in the carpet shell clams (Ruditapes decussatus) from metal‑contaminated sites in the South Lagoon of Tunis (Tunisia)
dc.typeinfo:eu-repo/semantics/article
dc.type.versioninfo:eu-repo/semantics/publishedVersion
dspace.entity.typePublicationes
relation.isAuthorOfPublicatione9f74fca-ae81-48b7-9b53-185f049b49ad
relation.isAuthorOfPublication73f1f7d1-c58a-4af9-b340-44afe7588147
relation.isAuthorOfPublication.latestForDiscoverye9f74fca-ae81-48b7-9b53-185f049b49ad
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