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The variation of stygofauna along a gradient of salinization in a coastal aquifer

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dc.contributor.authorShapouri, M.
dc.contributor.authorCancela Da Fonseca, Luís
dc.contributor.authorIepure, S.
dc.contributor.authorStigter, T.
dc.contributor.authorRibeiro, L.
dc.contributor.authorSilva, A.
dc.date.accessioned2020-01-19T18:24:23Z
dc.date.available2020-01-19T18:24:23Z
dc.date.issued2016
dc.description.abstractWe examined the variation of stygofauna composition collected in wells, along a gradient in groundwater salinity/conductivity in a coastal aquifer from southern Portugal. The studied coastal aquifer is considered vulnerable to salinization due to seawater intrusion, caused by overexploitation of the aquifer. Knowing the response of the stygofauna species to present levels of groundwater salinity makes it possible to understand and measure the effects of saltwater intrusion on stygofauna, rendering them potential bioindicators of this environmental pressure. Biotic and abiotic sampling was conducted in six shallow wells located in the fresh–saltwater interface of the Arade estuary along the salinity gradient established in the groundwater from the estuary to inland locations (microSiemens/cm). Groundwater salinity was highly correlated with taxa distribution. The stygobites Eucyclops hadjebensis and Acanthocyclops sensitivus, the cosmopolitan Megacyclops viridis and Cypria ophtalmica were particularly associated with low-salinity conditions, whereas Eucyclops graeteri, Megacyclops brachypus and Daphnia pulicaria were related to high-salinity waters. Multivariate analyses indicated that stygofauna assemblages varied significantly with location. We suggest that stygofauna composition and structure can be a useful complementing tool for monitoring seawater intrusion into coastal aquifers, where reduction or deterioration in groundwater resources is predicted.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.2166/nh.2015.153pt_PT
dc.identifier.issn0029-1277
dc.identifier.urihttp://hdl.handle.net/10451/41071
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherIWA Publishingpt_PT
dc.relation.publisherversionhttps://iwaponline.com/hr/article-abstract/47/1/89/1339pt_PT
dc.subjectbiomonitoringpt_PT
dc.subjectcoastal aquiferspt_PT
dc.subjectoverexploitationpt_PT
dc.subjectsalinization riskpt_PT
dc.subjectstygofaunapt_PT
dc.titleThe variation of stygofauna along a gradient of salinization in a coastal aquiferpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage103pt_PT
oaire.citation.issue1pt_PT
oaire.citation.startPage89pt_PT
oaire.citation.titleHydrology Researchpt_PT
oaire.citation.volume47pt_PT
person.familyNameCancela da Fonseca
person.givenNameLuís
person.identifier.ciencia-idC01F-F68E-2327
person.identifier.orcid0000-0001-6527-0827
person.identifier.ridI-5564-2012
person.identifier.scopus-author-id8640178100
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication88c0def9-5a2d-49a0-bd3a-f71c4768d6d9
relation.isAuthorOfPublication.latestForDiscovery88c0def9-5a2d-49a0-bd3a-f71c4768d6d9

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