Projected changes in photosynthetic picoplankton in a warmer subtropical ocean

16 pages, 8 figures, 3 tables, supplementary material https://www.frontiersin.org/articles/10.3389/fmars.2018.00506/full#supplementary-material

Detalhes bibliográficos
Autores: Agustí, Susana, Lubián, Luis M., Moreno-Ostos, Enrique, Estrada, Marta, Duarte, Carlos M.
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/177482
Acesso em linha:http://hdl.handle.net/10261/177482
Access Level:acceso abierto
Palavra-chave:UVB radiation
Temperatures
Nutrients
Ocean warming
Proclorococcus
Synechococcus
Pico eukaryotes
Underwater PAR
id ES_7e190a764374fcf52ae3a4b94c90e2e8
oai_identifier_str oai:digital.csic.es:10261/177482
network_acronym_str ES
network_name_str España
repository_id_str
spelling Projected changes in photosynthetic picoplankton in a warmer subtropical oceanAgustí, SusanaLubián, Luis M.Moreno-Ostos, EnriqueEstrada, MartaDuarte, Carlos M.UVB radiationTemperaturesNutrientsOcean warmingProclorococcusSynechococcusPico eukaryotesUnderwater PAR16 pages, 8 figures, 3 tables, supplementary material https://www.frontiersin.org/articles/10.3389/fmars.2018.00506/full#supplementary-materialThe oligotrophic subtropical gyres are the largest biome on Earth, where picoplankton constitute the dominant autotrophs. The trend for autotrophic picoplankton to increase with sea temperature has led to predictions that picophytoplankton abundance will increase with warming. Here we conducted a global survey in the open subtropical-tropical ocean to resolve the functional relationships between picophytoplankton abundance and oceanic properties (water temperature, chlorophyll a concentration, nutrient concentrations, and underwater visible and ultraviolet B radiation). We then used these relationships to build models projecting the future changes of Synechococcus, Prochlorococcus, and eukaryotic picoautotrophs populations in the subtropical gyres with warming. Our goal is to refine the forecasts for this large biome and implement the analysis by including the picoeukaryotes, absent in previous models, but a relevant component of picophytoplankton. The data obtained and the relationships found in our global survey of the subtropical-tropical ocean between picophytoplankton abundance and ocean properties differed from previous global studies including colder (temperate, subpolar, and polar) and coastal waters. These differences included a lower abundance of Synechococcus populations, significant negative relationships between Prochlorococcus abundance and nutrient concentrations, and positive relationships for picoeukaryotes and no relationship for Synechococcus abundance, and, a moderate response to temperature in the warm waters of the tropical-subtropical open ocean. A model based on temperature increase alone forecasts a general increase in picoautotrophs by year 2100, although minimal for picoeukaryotes, and much more moderate for Synechococcus than previously forecasted. However, a global change model linking the thermal increase with the associated decline in chlorophyll a, and increased underwater solar radiation penetration, projected a decline in the abundance of autotrophic picoplankton. The decline was larger at the surface layer and partially compensated by the increased importance of deep picophytoplankton blooms, especially those of Prochlorococcus. The global change model predicted an increased dominance of Prochlorococcus sp. in the subtropical-tropical ocean with future warming. Our results, based on current patterns of picophytoplankton distribution, help improve existing projections by considering feedbacks affecting picophytoplankton abundance in the future subtropical and tropical ocean, the larger biome on EarthThis research is a contribution to the Malaspina Expedition 2010 project, funded by the CONSOLIDER Ingenio 2010 programme of the Spanish Ministry of Science and Competitiveness (CSD2008-00077). Also funded by SA's baseline BAS/1/1072-01-01 KAUST fundPeer ReviewedFrontiers MediaMinisterio de Ciencia e Innovación (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2019201920192019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/177482reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.3389/fmars.2018.00506Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1774822026-05-22T06:33:51Z
dc.title.none.fl_str_mv Projected changes in photosynthetic picoplankton in a warmer subtropical ocean
title Projected changes in photosynthetic picoplankton in a warmer subtropical ocean
spellingShingle Projected changes in photosynthetic picoplankton in a warmer subtropical ocean
Agustí, Susana
UVB radiation
Temperatures
Nutrients
Ocean warming
Proclorococcus
Synechococcus
Pico eukaryotes
Underwater PAR
title_short Projected changes in photosynthetic picoplankton in a warmer subtropical ocean
title_full Projected changes in photosynthetic picoplankton in a warmer subtropical ocean
title_fullStr Projected changes in photosynthetic picoplankton in a warmer subtropical ocean
title_full_unstemmed Projected changes in photosynthetic picoplankton in a warmer subtropical ocean
title_sort Projected changes in photosynthetic picoplankton in a warmer subtropical ocean
dc.creator.none.fl_str_mv Agustí, Susana
Lubián, Luis M.
Moreno-Ostos, Enrique
Estrada, Marta
Duarte, Carlos M.
author Agustí, Susana
author_facet Agustí, Susana
Lubián, Luis M.
Moreno-Ostos, Enrique
Estrada, Marta
Duarte, Carlos M.
author_role author
author2 Lubián, Luis M.
Moreno-Ostos, Enrique
Estrada, Marta
Duarte, Carlos M.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv UVB radiation
Temperatures
Nutrients
Ocean warming
Proclorococcus
Synechococcus
Pico eukaryotes
Underwater PAR
topic UVB radiation
Temperatures
Nutrients
Ocean warming
Proclorococcus
Synechococcus
Pico eukaryotes
Underwater PAR
description 16 pages, 8 figures, 3 tables, supplementary material https://www.frontiersin.org/articles/10.3389/fmars.2018.00506/full#supplementary-material
publishDate 2019
dc.date.none.fl_str_mv 2019
2019
2019
2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/177482
url http://hdl.handle.net/10261/177482
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.3389/fmars.2018.00506
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Frontiers Media
publisher.none.fl_str_mv Frontiers Media
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869411712168361984
score 15.812429

Registos relacionados