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Fate of microbial contamination in a South European Coastal Lagoon (Ria Formosa) under the influence of treated effluents dispersal

2023-07-29Journal article Open access
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dc.contributor.authorCaetano, Sandra
dc.contributor.authorCorreia, Cátia
dc.contributor.authorTorres, Ana Flor
dc.contributor.authorMatos, André Filipe
dc.contributor.authorFerreira, Cristina
dc.contributor.authorCravo, Alexandra
dc.date.accessioned2025-11-10T12:48:22Z
dc.date.available2025-11-10T12:48:22Z
dc.date.issued2023-07-29en_US
dc.date.updated2025-11-09T17:29:55Z
dc.description.abstractAim: Assessment of the fate of microbial contamination driven from treated wastewater disposal at a highly productive zone on a South European coastal lagoon (Ria Formosa). Methods and results: Microbial indicators of contamination (Total coliforms, Escherichia coli and Enterococci) were evaluated monthly during September 2018-September 2020, at three study areas (Faro, Olhão, Tavira) under different wastewater discharge flows and hydrodynamic conditions. Additional data on E. coli monitoring in bivalves, available from the national institution responsible for their surveillance was also considered. The maximum microbial contamination was found at Faro, the highest-load and less-flushed study area, contrasting the lowest contamination at Olhão, a lower-load and strongly flushed area. The wastewater impact decreased along the spatial dispersal gradients and during high water, particularly at Faro and Tavira study areas, due to a considerable dilution effect. Microbial contamination at Olhão increased during the summer while at the other study areas seasonal evidence was not clear. Data also indicate that E. coli in bivalves from BPZ next to the three study areas reflected the differentiated impact of the wastewater treatment plants effluents on the water quality of those areas. Conclusions: Effluent loads together with local hydrodynamics, water temperature, solar radiation, precipitation and land runoff as well as seabirds populations and environmentally adapted faecal or renaturelized bacterial communities, contributed to microbial contamination of the study areas.eng
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1093/jambio/lxad166en_US
dc.identifier.eissn1365-2672
dc.identifier.slugcv-prod-4598727
dc.identifier.urihttp://hdl.handle.net/10400.1/27886
dc.language.isoeng
dc.peerreviewedyes
dc.relationMAR-01.04.02-FEAMP-0003en_US
dc.rights.uriN/A
dc.subjectEscherichia coli
dc.subjectCoastal lagoons
dc.subjectRia Formosa
dc.subjectMicrobial contamination
dc.subjectTreated wastewater
dc.titleFate of microbial contamination in a South European Coastal Lagoon (Ria Formosa) under the influence of treated effluents dispersalen_US
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue8en_US
oaire.citation.titleJournal of Applied Microbiologyen_US
oaire.citation.volume134en_US
oaire.versionhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43
person.familyNameCaetano
person.familyNameCorreia
person.familyNameTorres
person.familyNameMatos
person.familyNameFerreira
person.familyNameCravo
person.givenNameSandra
person.givenNameCátia
person.givenNameAna Flor
person.givenNameAndré Filipe
person.givenNameCristina
person.givenNameAlexandra
person.identifier.ciencia-id5815-EE93-D672
person.identifier.ciencia-id3017-A30B-6C8E
person.identifier.ciencia-id2F1C-2A1C-C7D4
person.identifier.ciencia-id7419-EE20-8039
person.identifier.orcid0000-0002-2228-5292
person.identifier.orcid0000-0002-1789-3701
person.identifier.orcid0000-0001-7271-4502
person.identifier.orcid0000-0001-5631-1199
person.identifier.orcid0000-0002-2569-3929
rcaap.cv.cienciaid5815-EE93-D672 | Sandra Caetano
rcaap.rightsclosedAccessen_US
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relation.isAuthorOfPublicationba4f2a11-1f9c-49e9-af61-8c2306bbab5b
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relation.isAuthorOfPublication.latestForDiscoveryed9042c4-e271-486a-9e40-020016488697

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