Nutrient-specific responses of a phytoplankton community: a case study of the North Atlantic Gyre, Azores
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.13/3839 |
Resumo: | Nutrient concentrations are unevenly distributed in the oceans, influencing the abundance and composition of phytoplankton communities. Even so, the dominant driving factors responsible for variability between phytoplank ton communities are still unclear. In the North Atlantic Gyre, the Azores present a good opportunity to study phytoplankton communities of oligotrophic areas that experience nutrient pulses. We followed the development of an enclosed natural phytoplankton community occurring off the coast of Terceira (Azores) and tested the effects of single (nitrate, phosphate, silicate and a mix of the trace metals Fe, Co, Cu, Mo, Zn and Mn) and combined nutri ent enrichments on phytoplankton abundance, particulate organic matter (POM) build-up, nutrient drawdown and community composition. Towards the end of the microcosm-based incubation, biomass developed dramatically (430-fold) when all the nutrients considered were added simultaneously. Importantly, the community composition at the end of the incubation was dependent on the combination of nutrients supplied, with diatoms dominating most of the treatments; coccolithophores under Phosphate + Trace Metals; and organisms with characteristics of a nitro gen fixer such as low δ15N under full nutrient enrichment. These results indicate group-specific nutrient require ments and limitations occurring near the Azores with a few taxa dominating the groups’ response to nutrient pulse |
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Nutrient-specific responses of a phytoplankton community: a case study of the North Atlantic Gyre, AzoresNutrientsPhytoplanktonCommunity compositionOligotrophicNorth Atlantic.Faculdade de Ciências da VidaNutrient concentrations are unevenly distributed in the oceans, influencing the abundance and composition of phytoplankton communities. Even so, the dominant driving factors responsible for variability between phytoplank ton communities are still unclear. In the North Atlantic Gyre, the Azores present a good opportunity to study phytoplankton communities of oligotrophic areas that experience nutrient pulses. We followed the development of an enclosed natural phytoplankton community occurring off the coast of Terceira (Azores) and tested the effects of single (nitrate, phosphate, silicate and a mix of the trace metals Fe, Co, Cu, Mo, Zn and Mn) and combined nutri ent enrichments on phytoplankton abundance, particulate organic matter (POM) build-up, nutrient drawdown and community composition. Towards the end of the microcosm-based incubation, biomass developed dramatically (430-fold) when all the nutrients considered were added simultaneously. Importantly, the community composition at the end of the incubation was dependent on the combination of nutrients supplied, with diatoms dominating most of the treatments; coccolithophores under Phosphate + Trace Metals; and organisms with characteristics of a nitro gen fixer such as low δ15N under full nutrient enrichment. These results indicate group-specific nutrient require ments and limitations occurring near the Azores with a few taxa dominating the groups’ response to nutrient pulseOxford University PressDigitUMaRamos, J. Barcelos eSchulz, Kai G.Voss, MarenNarciso, ÁureaMüller, Marius N.Reis, Francisco V.Cachão, MárioAzevedo, Eduardo B.2021-11-22T11:42:52Z20172017-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.13/3839engRamos, J. B., Schulz, K. G., Voss, M., Narciso, Á., Müller, M. N., Reis, F. V., ... & Azevedo, E. B. (2017). Nutrient-specific responses of a phytoplankton community: a case study of the North Atlantic Gyre, Azores. Journal of Plankton Research, 39(4), 744-761. https://doi.org/10.1093/plankt/fbx02510.1093/plankt/fbx025info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-03-26T03:39:15Zoai:digituma.uma.pt:10400.13/3839Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:07:23.471282Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Nutrient-specific responses of a phytoplankton community: a case study of the North Atlantic Gyre, Azores |
title |
Nutrient-specific responses of a phytoplankton community: a case study of the North Atlantic Gyre, Azores |
spellingShingle |
Nutrient-specific responses of a phytoplankton community: a case study of the North Atlantic Gyre, Azores Ramos, J. Barcelos e Nutrients Phytoplankton Community composition Oligotrophic North Atlantic . Faculdade de Ciências da Vida |
title_short |
Nutrient-specific responses of a phytoplankton community: a case study of the North Atlantic Gyre, Azores |
title_full |
Nutrient-specific responses of a phytoplankton community: a case study of the North Atlantic Gyre, Azores |
title_fullStr |
Nutrient-specific responses of a phytoplankton community: a case study of the North Atlantic Gyre, Azores |
title_full_unstemmed |
Nutrient-specific responses of a phytoplankton community: a case study of the North Atlantic Gyre, Azores |
title_sort |
Nutrient-specific responses of a phytoplankton community: a case study of the North Atlantic Gyre, Azores |
author |
Ramos, J. Barcelos e |
author_facet |
Ramos, J. Barcelos e Schulz, Kai G. Voss, Maren Narciso, Áurea Müller, Marius N. Reis, Francisco V. Cachão, Mário Azevedo, Eduardo B. |
author_role |
author |
author2 |
Schulz, Kai G. Voss, Maren Narciso, Áurea Müller, Marius N. Reis, Francisco V. Cachão, Mário Azevedo, Eduardo B. |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
DigitUMa |
dc.contributor.author.fl_str_mv |
Ramos, J. Barcelos e Schulz, Kai G. Voss, Maren Narciso, Áurea Müller, Marius N. Reis, Francisco V. Cachão, Mário Azevedo, Eduardo B. |
dc.subject.por.fl_str_mv |
Nutrients Phytoplankton Community composition Oligotrophic North Atlantic . Faculdade de Ciências da Vida |
topic |
Nutrients Phytoplankton Community composition Oligotrophic North Atlantic . Faculdade de Ciências da Vida |
description |
Nutrient concentrations are unevenly distributed in the oceans, influencing the abundance and composition of phytoplankton communities. Even so, the dominant driving factors responsible for variability between phytoplank ton communities are still unclear. In the North Atlantic Gyre, the Azores present a good opportunity to study phytoplankton communities of oligotrophic areas that experience nutrient pulses. We followed the development of an enclosed natural phytoplankton community occurring off the coast of Terceira (Azores) and tested the effects of single (nitrate, phosphate, silicate and a mix of the trace metals Fe, Co, Cu, Mo, Zn and Mn) and combined nutri ent enrichments on phytoplankton abundance, particulate organic matter (POM) build-up, nutrient drawdown and community composition. Towards the end of the microcosm-based incubation, biomass developed dramatically (430-fold) when all the nutrients considered were added simultaneously. Importantly, the community composition at the end of the incubation was dependent on the combination of nutrients supplied, with diatoms dominating most of the treatments; coccolithophores under Phosphate + Trace Metals; and organisms with characteristics of a nitro gen fixer such as low δ15N under full nutrient enrichment. These results indicate group-specific nutrient require ments and limitations occurring near the Azores with a few taxa dominating the groups’ response to nutrient pulse |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017 2017-01-01T00:00:00Z 2021-11-22T11:42:52Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.13/3839 |
url |
http://hdl.handle.net/10400.13/3839 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Ramos, J. B., Schulz, K. G., Voss, M., Narciso, Á., Müller, M. N., Reis, F. V., ... & Azevedo, E. B. (2017). Nutrient-specific responses of a phytoplankton community: a case study of the North Atlantic Gyre, Azores. Journal of Plankton Research, 39(4), 744-761. https://doi.org/10.1093/plankt/fbx025 10.1093/plankt/fbx025 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Oxford University Press |
publisher.none.fl_str_mv |
Oxford University Press |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799129942898769920 |