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Patterns and predictors of phytoplankton assemblage structure in a Coastal Lagoon: Species-specific analysis needed to disentangle anthropogenic pressures from ocean processes

2023-12-10Journal article Open access
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dc.contributor.authorLima, Maria João
dc.contributor.authorBarbosa, Ana B.
dc.contributor.authorCorreia, Cátia
dc.contributor.authorMatos, André
dc.contributor.authorCravo, Alexandra
dc.date.accessioned2024-01-05T14:42:12Z
dc.date.available2024-01-05T14:42:12Z
dc.date.issued2023-12-10
dc.date.updated2023-12-22T13:45:12Z
dc.description.abstractPhytoplankton are dominant primary producers and key indicators in aquatic ecosystems. Understanding the controlling factors on the structure of phytoplankton assemblages is fundamental, but particularly challenging at the land–ocean interface. To identify the patterns and predictors of phytoplankton assemblage structure in the Ria Formosa coastal lagoon (south Portugal), this study combined phytoplankton abundance along a transect between the discharge point of a wastewater treatment plant and a lagoon inlet, over two years, with physico-chemical, hydrographic, and meteo-oceanographic variables. Our study identified 147 operational taxonomic units (OTUs), and planktonic diatoms (60–74%) and cryptophyceans (17–25%) dominated the phytoplankton in terms of abundance. Despite strong lagoon hydrodynamics, and the lack of spatial differences in the phytoplankton abundance and most diversity metrics, the multivariate analysis revealed differences in the assemblage structure between stations (p < 0.001) and seasons (p < 0.01). Indicator analysis identified cryptophyceans as lagoon generalists, and 11 station-specific specialist OTUs, including Kryptoperidinium foliaceum and Oscillatoriales (innermost stations) and potentially toxigenic species (Pseudo-nitzschia and Dinophysis; outer lagoon station, p < 0.05). Water temperature, pH, and nutrients emerged as the variables that best explained the changes in the phytoplankton assemblage structure (p < 0.001). Our findings provide insight into the relevance of local anthropogenic and natural forcings on the phytoplankton assemblage structure and can be used to support the management of RF and other coastal lagoons.pt_PT
dc.description.sponsorshipMAR-01.04.02-FEAMP-0003pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationWater 15 (24): 4238 (2023)pt_PT
dc.identifier.doi10.3390/w15244238pt_PT
dc.identifier.eissn2073-4441
dc.identifier.urihttp://hdl.handle.net/10400.1/20278
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relationCentre for Marine and Environmental Research (CIMA)
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectPhytoplankton assemblage structurept_PT
dc.subjectDiversitypt_PT
dc.subjectIndicator species analysispt_PT
dc.subjectCryptophyceanspt_PT
dc.subjectDiatomspt_PT
dc.subjectRia Formosapt_PT
dc.subjectWastewater treatment plantpt_PT
dc.subjectInorganic nutrientspt_PT
dc.subjectWater temperaturept_PT
dc.titlePatterns and predictors of phytoplankton assemblage structure in a Coastal Lagoon: Species-specific analysis needed to disentangle anthropogenic pressures from ocean processespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCentre for Marine and Environmental Research (CIMA)
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F00350%2F2020/PT
oaire.citation.issue24pt_PT
oaire.citation.startPage4238pt_PT
oaire.citation.titleWaterpt_PT
oaire.citation.volume15pt_PT
oaire.fundingStream6817 - DCRRNI ID
person.familyNameBarbosa
person.familyNameCorreia
person.familyNameCravo
person.givenNameAna
person.givenNameCátia
person.givenNameAlexandra
person.identifier.ciencia-idF514-2180-4CF8
person.identifier.ciencia-id3017-A30B-6C8E
person.identifier.ciencia-id7419-EE20-8039
person.identifier.orcid0000-0002-7402-246X
person.identifier.orcid0000-0002-2228-5292
person.identifier.orcid0000-0002-2569-3929
person.identifier.scopus-author-id7103244778
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication5b72648c-41b5-46c0-9a7f-7fa2f514b973
relation.isAuthorOfPublicationba4f2a11-1f9c-49e9-af61-8c2306bbab5b
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