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Short-term interactive effects of ultraviolet radiation, carbon dioxide and nutrient enrichment on phytoplankton in a shallow coastal lagoon

2017Journal article Restricted
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dc.contributor.authorDomingues, Rita B.
dc.contributor.authorGuerra, Cátia C.
dc.contributor.authorGalvão, Helena M.
dc.contributor.authorBrotas, Vanda
dc.contributor.authorBarbosa, Ana B.
dc.date.accessioned2017-12-19T16:11:15Z
dc.date.available2017-12-19T16:11:15Z
dc.date.issued2017
dc.description.abstractThe main goal of this study was to evaluate short-term interactions between increased CO2, UVR and inorganic macronutrients (N, P and Si) on summer phytoplankton assemblages in the Ria Formosa coastal lagoon (SW Iberia), subjected to intense anthropogenic pressures and highly vulnerable to climate change. A multifactorial experiment using 20 different nutrient-enriched microcosms exposed to different spectral and CO2 conditions was designed. Before and after a 24-h in situ incubation, phytoplankton abundance and composition were analysed. Impacts and interactive effects of high CO2, UVR and nutrients varied among different functional groups. Increased UVR had negative effects on diatoms and cyanobacteria and positive effects on cryptophytes, whereas increased CO2 inhibited cyanobacteria but increased cryptophyte growth. A positive synergistic interaction between CO2 and UVR was observed for diatoms; high CO2 counteracted the negative effects of UVR under ambient nutrient concentrations. Nutrient enrichments suppressed the negative effects of high CO2 and UVR on cyanobacteria and diatoms, respectively. Beneficial effects of CO2 were observed for diatoms and cryptophytes under combined additions of nitrate and ammonium, suggesting that growth may be limited by DIC availability when the primary limitation by nitrogen is alleviated. Beneficial effects of high CO2 and UVR in diatoms were also induced or intensified by ammonium additions.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1007/s10452-016-9601-4pt_PT
dc.identifier.otherAUT: ABA00694; HGA00327;
dc.identifier.urihttp://hdl.handle.net/10400.1/10259
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSrpingerpt_PT
dc.subjectNutrient limitationpt_PT
dc.subjectStress responsespt_PT
dc.subjectUltraviolet radiationpt_PT
dc.subjectAcidificationpt_PT
dc.subjectCoastal lagoonspt_PT
dc.subjectPhytoplanktonpt_PT
dc.titleShort-term interactive effects of ultraviolet radiation, carbon dioxide and nutrient enrichment on phytoplankton in a shallow coastal lagoonpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage105pt_PT
oaire.citation.startPage91pt_PT
oaire.citation.titleAquatic Ecologypt_PT
oaire.citation.volume51pt_PT
person.familyNameDomingues
person.familyNameGalvão
person.familyNameBarbosa
person.givenNameRita
person.givenNameHelena
person.givenNameAna
person.identifier640932
person.identifier1291299
person.identifier.ciencia-id7417-4EEC-3408
person.identifier.ciencia-idC51A-2C5A-CF8D
person.identifier.ciencia-idF514-2180-4CF8
person.identifier.orcid0000-0002-7107-8222
person.identifier.orcid0000-0003-0939-8994
person.identifier.orcid0000-0002-7402-246X
person.identifier.scopus-author-id8627143500
person.identifier.scopus-author-id6505974701
person.identifier.scopus-author-id7103244778
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication43632aa6-ab1f-4c52-8737-dc069bc29291
relation.isAuthorOfPublicationef31f343-34f9-4aec-a095-e070235d23b3
relation.isAuthorOfPublication5b72648c-41b5-46c0-9a7f-7fa2f514b973
relation.isAuthorOfPublication.latestForDiscoveryef31f343-34f9-4aec-a095-e070235d23b3

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