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Bioaccumulation and potential ecotoxicological effects of trace metals along a management intensity gradient in volcanic pasturelands

2021-06Journal article Open access
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dc.contributor.authorParelho, Carolina Paula Furtado de Medeiros
dc.contributor.authorRodrigues, Armindo
dc.contributor.authorBarreto, Maria do Carmo
dc.contributor.authorCruz, José Virgílio
dc.contributor.authorRasche, Frank
dc.contributor.authorSilva, Luís
dc.contributor.authorGarcia, Patrícia
dc.date.accessioned2021-09-15T09:30:09Z
dc.date.available2023-06-01T00:30:17Z
dc.date.issued2021-06
dc.description.abstractThe particularities of volcanic soils raise the need to better understand the link between soil agricultural management intensity and trace metal bioaccumulation. The Azores are a region characterized by volcanic soils, which were changed in different degrees according to the intensity of the agricultural practices. The main objective of this study was to assess the potential ecotoxicological effects of the trace metals present in volcanic pastureland soils along a gradient of management intensity (i.e., semi-natural, permanent and reseeded), using earthworms (Eisenia fetida) as biological indicators. For this purpose earthworms were exposed during 7, 14, 28 and 56 days to soils from the three types of pastures. At each exposure time, we quantified trace element bioaccumulation (As, Cd, Co, Cr, Cu, Hg, Li, Mn, Mo, Ni, Pb, Rb, U, V and Zn) and the activities of superoxide dismutase and acetylcholinesterase in earthworm tissues. Overall, the results showed that the type of pastureland management significantly increased the soil contents in trace metals: V, Co, Ni and Zn in semi-natural pasturelands; As, Cd and Hg in reseeded pasturelands; and, Rb and U in both permanent and reseeded pasturelands. The soil physicochemical properties observed in the reseeded pastureland systems (higher electric conductivity values associated with a moderately acid pH value) modulated the metal bioavailability, from soil to biota, leading to a greater Hg bioaccumulation in earthworm tissues. The long-term exposure (56 days) of earthworms to reseeded pastureland soil was associated with adverse biological effects (intensification of AChE activity and decrease of SOD activity), encompassing key processes such as neurotransmission and antioxidant defence mechanisms in resident soil biota (earthworms). This study point towards the increased importance of semi-natural and permanent pastureland management, over the intensive management (reseeded pasturelands), in favour of more sustainable ecosystems.en
dc.description.sponsorshipThis study was supported by BiodivERsA project BIOINVENT (www.biodiversa.org/972) and by Fundo Regional da Ciência e Tecnologia (ref. M1.1.C/2/001/2017).en
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationParelho, C., Rodrigues, A., Barreto, M.C., Cruz, J.V., Rasche, F., Silva, L. & Garcia, P. (2021). Bioaccumulation and potential ecotoxicological effects of trace metals along a management intensity gradient in volcanic pasturelands. "Chemosphere", 273, 128601. DOI:10.1016/j.chemosphere.2020.128601en
dc.identifier.doi10.1016/j.chemosphere.2020.128601pt_PT
dc.identifier.eissn1879-1298
dc.identifier.issn0045-6535
dc.identifier.pmid33070976
dc.identifier.urihttp://hdl.handle.net/10400.3/6057
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S004565352032796Xpt_PT
dc.subjectEisenia fetidapt_PT
dc.subjectBioaccumulationen
dc.subjectEnzyme Activitiesen
dc.subjectTrace Metalsen
dc.subjectPasture Managementen
dc.subjectEcotoxicityen
dc.titleBioaccumulation and potential ecotoxicological effects of trace metals along a management intensity gradient in volcanic pasturelandsen
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceUnited Kingdomen
oaire.citation.titleChemosphereen
oaire.citation.volume273pt_PT
person.familyNamedos Santos Rodrigues
person.familyNameBarreto
person.familyNameGarcia
person.givenNameArmindo
person.givenNameMaria do Carmo
person.givenNamePatrícia
person.identifier.ciencia-id141A-9835-FBE0
person.identifier.ciencia-idC512-A6FD-4A68
person.identifier.ciencia-id941F-888A-412F
person.identifier.orcid0000-0002-9851-5429
person.identifier.orcid0000-0001-5797-8913
person.identifier.orcid0000-0003-4490-9905
person.identifier.ridN-8704-2015
person.identifier.ridM-7754-2013
person.identifier.scopus-author-id7004455600
person.identifier.scopus-author-id7201694062
rcaap.embargofctRequisito do periódico (Sherpa/Romeo)pt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication375991d8-6f81-4403-902c-000634a4cfdd
relation.isAuthorOfPublicationf61a2d4d-efd3-487c-acfb-7bb7aceb55b0
relation.isAuthorOfPublication94864ead-4016-4db1-b56e-136d294db238
relation.isAuthorOfPublication.latestForDiscovery94864ead-4016-4db1-b56e-136d294db238

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