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Biomarker responses of the clam ruditapes decussatus exposed to a complex mixture of environmental stressors under the influence of an urban wastewater-treatment plant

2021-01Journal article Restricted access
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dc.contributor.authorSilva, Sofia
dc.contributor.authorCravo, Alexandra
dc.contributor.authorFerreira, Cristina
dc.contributor.authorCorreia, Cátia
dc.contributor.authorAlmeida, Cristina M. M.
dc.date.accessioned2021-06-24T11:35:08Z
dc.date.available2021-06-24T11:35:08Z
dc.date.issued2021-01
dc.description.abstractTo evaluate the potential impact of an urban wastewater-treatment plant on Ria Formosa coastal lagoon, a sentinel species, the clam Ruditapes decussatus, was exposed along a gradient of the effluent's dispersal for 1 mo. Three exposure sites were selected to study the responses of 3 biomarkers: electron transport system, acetylcholinesterase, and lipid peroxidation. As complementary data, morphometric measurements, condition index, and lipid and protein content were considered together with in situ physicochemical characterization of the sites (temperature, salinity, pH, and dissolved oxygen). Electron transport system activity levels were between 35.7 and 50.5 nmol O-2/min g protein, acetylcholinesterase activity levels ranged from 2.6 to 3.8 nmol/min g protein, and lipid peroxidation ranged from 174.7 to 246.4 nmol malondialdehyde/g protein. The exposure sites shaped the response not only of biomarkers but also of "health" parameters (protein, lipids, and condition index). Lipid peroxidation was the most responsive biomarker also associated with electron transport system, especially at the closest site to the urban wastewater-treatment plant. Because of the presence of complex mixtures of contaminants in urban effluents, biomarker responses can provide valuable information in environmental assessment. However, it is vital to identify all biological and ecological factors induced by the natural life cycle of clams. Abiotic factors can mask or overlap the response of biomarkers and should be considered in a multibiomarker approach. (C) 2020 SETAC
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1002/etc.4895
dc.identifier.issn0730-7268
dc.identifier.urihttp://hdl.handle.net/10400.1/16349
dc.language.isoeng
dc.peerreviewedyes
dc.publisherWiley
dc.subjectAquatic toxicology
dc.subjectBiomarkers
dc.subjectEcotoxicology
dc.subjectMunicipal effluents
dc.subjectStressors
dc.subject.otherEnvironmental Sciences & Ecology
dc.titleBiomarker responses of the clam ruditapes decussatus exposed to a complex mixture of environmental stressors under the influence of an urban wastewater-treatment plant
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage283
oaire.citation.issue1
oaire.citation.startPage272
oaire.citation.titleEnvironmental Toxicology and Chemistry
oaire.citation.volume40
person.familyNameCravo
person.familyNameCorreia
person.givenNameAlexandra
person.givenNameCátia
person.identifier.ciencia-id7419-EE20-8039
person.identifier.ciencia-id3017-A30B-6C8E
person.identifier.orcid0000-0002-2569-3929
person.identifier.orcid0000-0002-2228-5292
rcaap.rightsrestrictedAccess
rcaap.typearticle
relation.isAuthorOfPublicationf19c20c8-9654-43db-841b-2c6f14979df5
relation.isAuthorOfPublicationba4f2a11-1f9c-49e9-af61-8c2306bbab5b
relation.isAuthorOfPublication.latestForDiscoveryf19c20c8-9654-43db-841b-2c6f14979df5

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