Publicação
Short-term interactive effects of ultraviolet radiation, carbon dioxide and nutrient enrichment on phytoplankton in a shallow coastal lagoon
| Resumo: | The 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. |
|---|---|
| Autores principais: | Domingues, Rita B. |
| Outros Autores: | Guerra, Cátia C.; Galvão, Helena M.; Brotas, Vanda; Barbosa, Ana B. |
| Assunto: | Nutrient limitation Stress responses Ultraviolet radiation Acidification Coastal lagoons |
| Ano: | 2017 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso restrito |
| Instituição associada: | Universidade de Lisboa |
| Idioma: | inglês |
| Origem: | Repositório da Universidade de Lisboa |
| _version_ | 1868467840187629568 |
|---|---|
| author | Domingues, Rita B. |
| author2 | Guerra, Cátia C. Galvão, Helena M. Brotas, Vanda Barbosa, Ana B. |
| author2_role | author author author author |
| author_facet | Domingues, Rita B. Guerra, Cátia C. Galvão, Helena M. Brotas, Vanda Barbosa, Ana B. |
| author_role | author |
| contributor_name_str_mv | Repositório Científico de Acesso Aberto da ULisboa |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Domingues, Rita B.\",\"Person.identifier.orcid\":\"0000-0002-7107-8222\"},{\"Person.name\":\"Guerra, Cátia C.\"},{\"Person.name\":\"Galvão, Helena M.\"},{\"Person.name\":\"Brotas, Vanda\",\"Person.identifier.orcid\":\"0000-0001-8612-4167\"},{\"Person.name\":\"Barbosa, Ana B.\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | Repositório Científico de Acesso Aberto da ULisboa |
| datacite.creators.creator.creatorName.fl_str_mv | Domingues, Rita B. Guerra, Cátia C. Galvão, Helena M. Brotas, Vanda Barbosa, Ana B. |
| datacite.date.Accepted.fl_str_mv | 2017-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2020-01-19T14:21:56Z |
| datacite.date.embargoed.fl_str_mv | 2020-01-19T14:21:56Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_16ec |
| datacite.subjects.subject.fl_str_mv | Nutrient limitation Stress responses Ultraviolet radiation Acidification Coastal lagoons |
| datacite.titles.title.fl_str_mv | Short-term interactive effects of ultraviolet radiation, carbon dioxide and nutrient enrichment on phytoplankton in a shallow coastal lagoon |
| dc.contributor.none.fl_str_mv | Repositório Científico de Acesso Aberto da ULisboa |
| dc.creator.none.fl_str_mv | Domingues, Rita B. Guerra, Cátia C. Galvão, Helena M. Brotas, Vanda Barbosa, Ana B. |
| dc.date.Accepted.fl_str_mv | 2017-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2020-01-19T14:21:56Z |
| dc.date.embargoed.fl_str_mv | 2020-01-19T14:21:56Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10451/41027 |
| dc.language.none.fl_str_mv | eng |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_16ec |
| dc.subject.none.fl_str_mv | Nutrient limitation Stress responses Ultraviolet radiation Acidification Coastal lagoons |
| dc.title.fl_str_mv | Short-term interactive effects of ultraviolet radiation, carbon dioxide and nutrient enrichment on phytoplankton in a shallow coastal lagoon |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | The 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. |
| dirty | 0 |
| eu_rights_str_mv | restrictedAccess |
| format | article |
| fulltext.url.fl_str_mv | https://repositorio.ulisboa.pt/bitstreams/54624765-7257-4ee9-a97f-72e2aa41b73e/download |
| id | ul_124d5bc0ebfcdf310a08027e482202cd |
| identifier.url.fl_str_mv | http://hdl.handle.net/10451/41027 |
| instacron_str | ul |
| institution | Universidade de Lisboa |
| instname_str | Universidade de Lisboa |
| language | eng |
| network_acronym_str | ul |
| network_name_str | Repositório da Universidade de Lisboa |
| oai_identifier_str | oai:repositorio.ulisboa.pt:10451/41027 |
| organization_str_mv | urn:organizationAcronym:ul |
| person_str_mv | Domingues, Rita B. Domingues, Rita B. https://www.ciencia-id.pt/7417-4EEC-3408 7417-4EEC-3408 http://orcid.org/0000-0002-7107-8222 0000-0002-7107-8222 Guerra, Cátia C. Galvão, Helena M. Brotas, Vanda Brotas, Vanda https://www.ciencia-id.pt/8E1C-3DB2-13FD 8E1C-3DB2-13FD http://orcid.org/0000-0001-8612-4167 0000-0001-8612-4167 Barbosa, Ana B. |
| publishDate | 2017 |
| reponame_str | Repositório da Universidade de Lisboa |
| repository_id_str | urn:repositoryAcronym:ul |
| service_str_mv | urn:repositoryAcronym:ul |
| spelling | engpt_PTThe 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.application/pdfpt_PTShort-term interactive effects of ultraviolet radiation, carbon dioxide and nutrient enrichment on phytoplankton in a shallow coastal lagoonPersonalDomingues, Rita B.DSpacehttp://dspace.org/items/61ec8498-6f0f-46ce-82d9-f1ca8ab1fcd0DSpacehttp://dspace.org/items/61ec8498-6f0f-46ce-82d9-f1ca8ab1fcd0DominguesRitaCiência IDhttps://www.ciencia-id.pt7417-4EEC-3408ORCIDhttp://orcid.org0000-0002-7107-8222Scopus Author IDhttps://www.scopus.com8627143500Guerra, Cátia C.Galvão, Helena M.PersonalBrotas, VandaDSpacehttp://dspace.org/items/e0a1924d-aefc-4c25-a932-1f7602f55b53DSpacehttp://dspace.org/items/e0a1924d-aefc-4c25-a932-1f7602f55b53BrotasVandaCiência IDhttps://www.ciencia-id.pt8E1C-3DB2-13FDORCIDhttp://orcid.org0000-0001-8612-4167Researcher IDhttps://www.researcherid.comA-2410-2012Scopus Author IDhttps://www.scopus.com6602078736Barbosa, Ana B.HostingInstitutionOrganizationalRepositório Científico de Acesso Aberto da ULisboae-mailmailto:repositorio@reitoria.ulisboa.ptrepositorio@reitoria.ulisboa.ptISSNIsPartOf1386-2588DOIIsPartOf10.1007/s10452-016-9601-42020-01-19T14:21:56Z20172017-01-01T00:00:00ZHandlehttp://hdl.handle.net/10451/41027http://purl.org/coar/access_right/c_16ecrestricted accessNutrient limitationStress responsesUltraviolet radiationAcidificationCoastal lagoons908775 bytesliteraturehttp://purl.org/coar/resource_type/c_6501journal articlehttp://purl.org/coar/access_right/c_16ecapplication/pdffulltexthttps://repositorio.ulisboa.pt/bitstreams/54624765-7257-4ee9-a97f-72e2aa41b73e/downloadAquatic Ecology51191105 |
| spellingShingle | Short-term interactive effects of ultraviolet radiation, carbon dioxide and nutrient enrichment on phytoplankton in a shallow coastal lagoon Domingues, Rita B. Nutrient limitation Stress responses Ultraviolet radiation Acidification Coastal lagoons |
| status | SINGLETON |
| subject.fl_str_mv | Nutrient limitation Stress responses Ultraviolet radiation Acidification Coastal lagoons |
| title | Short-term interactive effects of ultraviolet radiation, carbon dioxide and nutrient enrichment on phytoplankton in a shallow coastal lagoon |
| title_full | Short-term interactive effects of ultraviolet radiation, carbon dioxide and nutrient enrichment on phytoplankton in a shallow coastal lagoon |
| title_fullStr | Short-term interactive effects of ultraviolet radiation, carbon dioxide and nutrient enrichment on phytoplankton in a shallow coastal lagoon |
| title_full_unstemmed | Short-term interactive effects of ultraviolet radiation, carbon dioxide and nutrient enrichment on phytoplankton in a shallow coastal lagoon |
| title_short | Short-term interactive effects of ultraviolet radiation, carbon dioxide and nutrient enrichment on phytoplankton in a shallow coastal lagoon |
| title_sort | Short-term interactive effects of ultraviolet radiation, carbon dioxide and nutrient enrichment on phytoplankton in a shallow coastal lagoon |
| topic | Nutrient limitation Stress responses Ultraviolet radiation Acidification Coastal lagoons |
| topic_facet | Nutrient limitation Stress responses Ultraviolet radiation Acidification Coastal lagoons |
| url | http://hdl.handle.net/10451/41027 |
| visible | 1 |