Effects of enhanced temperature and ultraviolet B radiation on a natural plankton community of the Beagle Channel (southern Argentina): a mesocosm study

Autores
Moreau, S.; Mostajir, B.; Almandoz, Gaston Osvaldo; Demers, S.; Hernando, M.; Lemarchand, K.; Lionard, M.; Mercier, B.; Roy, S.; Schloss, Irene Ruth; Thyssen, M.; Ferreyra, G. A.
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Marine planktonic communities can be affected by increased temperatures associated with global climate change, as well as by increased ultraviolet B radiation (UVBR, 280-320 nm) through stratospheric ozone layer thinning. We studied individual and combined effects of increased temperature and UVBR on the plankton community of the Beagle Channel, southern Patagonia, Argentina. Eight 2 m3 mesocosms were exposed to 4 treatments (with 2 replicates) during 10 d: (1) control (natural temperature and UVBR), (2) increased UVBR (simulating a 60% decrease in stratospheric ozone layer thickness), (3) increased temperature (+ 3°C), and (4) simultaneous increased temperature and UVBR (60% decrease in stratospheric ozone; + 3°C). Two distinct situations were observed with regard to phytoplankton biomass: bloom (Days 1-4) and post-bloom (Days 5-9). Significant decreases in micro-sized diatoms (>20 µm), bacteria, chlorophyll a, and particulate organic carbon concentrations were observed during the post-bloom in the enhanced temperature treatments relative to natural temperature, accompanied by significant increases in nanophytoplankton (10-20 µm, mainly prymnesiophytes). The decrease in micro-sized diatoms in the high temperature treatment may have been caused by a physiological effect of warming, although we do not have activity measurements to support this hypothesis. Prymnesiophytes benefited from micro-sized diatom reduction in their competition for resources. The bacterial decrease under warming may have been due to a change in the dissolved organic matter release caused by the observed change in phytoplankton composition. Overall, the rise in temperature affected the structure and total biomass of the communities, while no major effect of UVBR was observed on the plankton community.
Fil: Moreau, S.. Université Catholique de Louvain; Bélgica. Institut Des Sciences de la Mer de Rimouski; Canadá
Fil: Mostajir, B.. Université Montpellier; Francia
Fil: Almandoz, Gaston Osvaldo. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. Division Ficología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Demers, S.. Institut Des Sciences de la Mer de Rimouski; Canadá
Fil: Hernando, M.. Comisión Nacional de Energía Atómica; Argentina
Fil: Lemarchand, K.. Institut Des Sciences de la Mer de Rimouski; Canadá
Fil: Lionard, M.. Institut Des Sciences de la Mer de Rimouski; Canadá
Fil: Mercier, B.. Institut Des Sciences de la Mer de Rimouski; Canadá
Fil: Roy, S.. Institut Des Sciences de la Mer de Rimouski; Canadá
Fil: Schloss, Irene Ruth. Institut Des Sciences de la Mer de Rimouski; Canadá. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Thyssen, M.. Institut Des Sciences de la Mer de Rimouski; Canadá
Fil: Ferreyra, G. A.. Institut Des Sciences de la Mer de Rimouski; Canadá
Materia
PLANKTON
UVBR
INCREASED TEMPERATURE
PATAGONIA
Nivel de accesibilidad
acceso embargado
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/31448
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Effects of enhanced temperature and ultraviolet B radiation on a natural plankton community of the Beagle Channel (southern Argentina): a mesocosm studyMoreau, S.Mostajir, B.Almandoz, Gaston OsvaldoDemers, S.Hernando, M.Lemarchand, K.Lionard, M.Mercier, B.Roy, S.Schloss, Irene RuthThyssen, M.Ferreyra, G. A.PLANKTONUVBRINCREASED TEMPERATUREPATAGONIAhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Marine planktonic communities can be affected by increased temperatures associated with global climate change, as well as by increased ultraviolet B radiation (UVBR, 280-320 nm) through stratospheric ozone layer thinning. We studied individual and combined effects of increased temperature and UVBR on the plankton community of the Beagle Channel, southern Patagonia, Argentina. Eight 2 m3 mesocosms were exposed to 4 treatments (with 2 replicates) during 10 d: (1) control (natural temperature and UVBR), (2) increased UVBR (simulating a 60% decrease in stratospheric ozone layer thickness), (3) increased temperature (+ 3°C), and (4) simultaneous increased temperature and UVBR (60% decrease in stratospheric ozone; + 3°C). Two distinct situations were observed with regard to phytoplankton biomass: bloom (Days 1-4) and post-bloom (Days 5-9). Significant decreases in micro-sized diatoms (>20 µm), bacteria, chlorophyll a, and particulate organic carbon concentrations were observed during the post-bloom in the enhanced temperature treatments relative to natural temperature, accompanied by significant increases in nanophytoplankton (10-20 µm, mainly prymnesiophytes). The decrease in micro-sized diatoms in the high temperature treatment may have been caused by a physiological effect of warming, although we do not have activity measurements to support this hypothesis. Prymnesiophytes benefited from micro-sized diatom reduction in their competition for resources. The bacterial decrease under warming may have been due to a change in the dissolved organic matter release caused by the observed change in phytoplankton composition. Overall, the rise in temperature affected the structure and total biomass of the communities, while no major effect of UVBR was observed on the plankton community.Fil: Moreau, S.. Université Catholique de Louvain; Bélgica. Institut Des Sciences de la Mer de Rimouski; CanadáFil: Mostajir, B.. Université Montpellier; FranciaFil: Almandoz, Gaston Osvaldo. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. Division Ficología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Demers, S.. Institut Des Sciences de la Mer de Rimouski; CanadáFil: Hernando, M.. Comisión Nacional de Energía Atómica; ArgentinaFil: Lemarchand, K.. Institut Des Sciences de la Mer de Rimouski; CanadáFil: Lionard, M.. Institut Des Sciences de la Mer de Rimouski; CanadáFil: Mercier, B.. Institut Des Sciences de la Mer de Rimouski; CanadáFil: Roy, S.. Institut Des Sciences de la Mer de Rimouski; CanadáFil: Schloss, Irene Ruth. Institut Des Sciences de la Mer de Rimouski; Canadá. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Thyssen, M.. Institut Des Sciences de la Mer de Rimouski; CanadáFil: Ferreyra, G. A.. Institut Des Sciences de la Mer de Rimouski; CanadáInter-Research2014-05info:eu-repo/date/embargoEnd/2019-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/31448Ferreyra, G. A.; Thyssen, M.; Schloss, Irene Ruth; Roy, S.; Mercier, B.; Lionard, M.; et al.; Effects of enhanced temperature and ultraviolet B radiation on a natural plankton community of the Beagle Channel (southern Argentina): a mesocosm study; Inter-Research; Aquatic Microbial Ecology; 72; 2; 5-2014; 155-1730948-30551616-1564CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.3354/ame01694info:eu-repo/semantics/altIdentifier/url/http://www.int-res.com/abstracts/ame/v72/n2/p155-173/info:eu-repo/semantics/embargoedAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:59:53Zoai:ri.conicet.gov.ar:11336/31448instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:59:53.748CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effects of enhanced temperature and ultraviolet B radiation on a natural plankton community of the Beagle Channel (southern Argentina): a mesocosm study
title Effects of enhanced temperature and ultraviolet B radiation on a natural plankton community of the Beagle Channel (southern Argentina): a mesocosm study
spellingShingle Effects of enhanced temperature and ultraviolet B radiation on a natural plankton community of the Beagle Channel (southern Argentina): a mesocosm study
Moreau, S.
PLANKTON
UVBR
INCREASED TEMPERATURE
PATAGONIA
title_short Effects of enhanced temperature and ultraviolet B radiation on a natural plankton community of the Beagle Channel (southern Argentina): a mesocosm study
title_full Effects of enhanced temperature and ultraviolet B radiation on a natural plankton community of the Beagle Channel (southern Argentina): a mesocosm study
title_fullStr Effects of enhanced temperature and ultraviolet B radiation on a natural plankton community of the Beagle Channel (southern Argentina): a mesocosm study
title_full_unstemmed Effects of enhanced temperature and ultraviolet B radiation on a natural plankton community of the Beagle Channel (southern Argentina): a mesocosm study
title_sort Effects of enhanced temperature and ultraviolet B radiation on a natural plankton community of the Beagle Channel (southern Argentina): a mesocosm study
dc.creator.none.fl_str_mv Moreau, S.
Mostajir, B.
Almandoz, Gaston Osvaldo
Demers, S.
Hernando, M.
Lemarchand, K.
Lionard, M.
Mercier, B.
Roy, S.
Schloss, Irene Ruth
Thyssen, M.
Ferreyra, G. A.
author Moreau, S.
author_facet Moreau, S.
Mostajir, B.
Almandoz, Gaston Osvaldo
Demers, S.
Hernando, M.
Lemarchand, K.
Lionard, M.
Mercier, B.
Roy, S.
Schloss, Irene Ruth
Thyssen, M.
Ferreyra, G. A.
author_role author
author2 Mostajir, B.
Almandoz, Gaston Osvaldo
Demers, S.
Hernando, M.
Lemarchand, K.
Lionard, M.
Mercier, B.
Roy, S.
Schloss, Irene Ruth
Thyssen, M.
Ferreyra, G. A.
author2_role author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv PLANKTON
UVBR
INCREASED TEMPERATURE
PATAGONIA
topic PLANKTON
UVBR
INCREASED TEMPERATURE
PATAGONIA
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Marine planktonic communities can be affected by increased temperatures associated with global climate change, as well as by increased ultraviolet B radiation (UVBR, 280-320 nm) through stratospheric ozone layer thinning. We studied individual and combined effects of increased temperature and UVBR on the plankton community of the Beagle Channel, southern Patagonia, Argentina. Eight 2 m3 mesocosms were exposed to 4 treatments (with 2 replicates) during 10 d: (1) control (natural temperature and UVBR), (2) increased UVBR (simulating a 60% decrease in stratospheric ozone layer thickness), (3) increased temperature (+ 3°C), and (4) simultaneous increased temperature and UVBR (60% decrease in stratospheric ozone; + 3°C). Two distinct situations were observed with regard to phytoplankton biomass: bloom (Days 1-4) and post-bloom (Days 5-9). Significant decreases in micro-sized diatoms (>20 µm), bacteria, chlorophyll a, and particulate organic carbon concentrations were observed during the post-bloom in the enhanced temperature treatments relative to natural temperature, accompanied by significant increases in nanophytoplankton (10-20 µm, mainly prymnesiophytes). The decrease in micro-sized diatoms in the high temperature treatment may have been caused by a physiological effect of warming, although we do not have activity measurements to support this hypothesis. Prymnesiophytes benefited from micro-sized diatom reduction in their competition for resources. The bacterial decrease under warming may have been due to a change in the dissolved organic matter release caused by the observed change in phytoplankton composition. Overall, the rise in temperature affected the structure and total biomass of the communities, while no major effect of UVBR was observed on the plankton community.
Fil: Moreau, S.. Université Catholique de Louvain; Bélgica. Institut Des Sciences de la Mer de Rimouski; Canadá
Fil: Mostajir, B.. Université Montpellier; Francia
Fil: Almandoz, Gaston Osvaldo. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. Division Ficología; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Demers, S.. Institut Des Sciences de la Mer de Rimouski; Canadá
Fil: Hernando, M.. Comisión Nacional de Energía Atómica; Argentina
Fil: Lemarchand, K.. Institut Des Sciences de la Mer de Rimouski; Canadá
Fil: Lionard, M.. Institut Des Sciences de la Mer de Rimouski; Canadá
Fil: Mercier, B.. Institut Des Sciences de la Mer de Rimouski; Canadá
Fil: Roy, S.. Institut Des Sciences de la Mer de Rimouski; Canadá
Fil: Schloss, Irene Ruth. Institut Des Sciences de la Mer de Rimouski; Canadá. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Thyssen, M.. Institut Des Sciences de la Mer de Rimouski; Canadá
Fil: Ferreyra, G. A.. Institut Des Sciences de la Mer de Rimouski; Canadá
description Marine planktonic communities can be affected by increased temperatures associated with global climate change, as well as by increased ultraviolet B radiation (UVBR, 280-320 nm) through stratospheric ozone layer thinning. We studied individual and combined effects of increased temperature and UVBR on the plankton community of the Beagle Channel, southern Patagonia, Argentina. Eight 2 m3 mesocosms were exposed to 4 treatments (with 2 replicates) during 10 d: (1) control (natural temperature and UVBR), (2) increased UVBR (simulating a 60% decrease in stratospheric ozone layer thickness), (3) increased temperature (+ 3°C), and (4) simultaneous increased temperature and UVBR (60% decrease in stratospheric ozone; + 3°C). Two distinct situations were observed with regard to phytoplankton biomass: bloom (Days 1-4) and post-bloom (Days 5-9). Significant decreases in micro-sized diatoms (>20 µm), bacteria, chlorophyll a, and particulate organic carbon concentrations were observed during the post-bloom in the enhanced temperature treatments relative to natural temperature, accompanied by significant increases in nanophytoplankton (10-20 µm, mainly prymnesiophytes). The decrease in micro-sized diatoms in the high temperature treatment may have been caused by a physiological effect of warming, although we do not have activity measurements to support this hypothesis. Prymnesiophytes benefited from micro-sized diatom reduction in their competition for resources. The bacterial decrease under warming may have been due to a change in the dissolved organic matter release caused by the observed change in phytoplankton composition. Overall, the rise in temperature affected the structure and total biomass of the communities, while no major effect of UVBR was observed on the plankton community.
publishDate 2014
dc.date.none.fl_str_mv 2014-05
info:eu-repo/date/embargoEnd/2019-06-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/31448
Ferreyra, G. A.; Thyssen, M.; Schloss, Irene Ruth; Roy, S.; Mercier, B.; Lionard, M.; et al.; Effects of enhanced temperature and ultraviolet B radiation on a natural plankton community of the Beagle Channel (southern Argentina): a mesocosm study; Inter-Research; Aquatic Microbial Ecology; 72; 2; 5-2014; 155-173
0948-3055
1616-1564
CONICET Digital
CONICET
url http://hdl.handle.net/11336/31448
identifier_str_mv Ferreyra, G. A.; Thyssen, M.; Schloss, Irene Ruth; Roy, S.; Mercier, B.; Lionard, M.; et al.; Effects of enhanced temperature and ultraviolet B radiation on a natural plankton community of the Beagle Channel (southern Argentina): a mesocosm study; Inter-Research; Aquatic Microbial Ecology; 72; 2; 5-2014; 155-173
0948-3055
1616-1564
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.3354/ame01694
info:eu-repo/semantics/altIdentifier/url/http://www.int-res.com/abstracts/ame/v72/n2/p155-173/
dc.rights.none.fl_str_mv info:eu-repo/semantics/embargoedAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv embargoedAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Inter-Research
publisher.none.fl_str_mv Inter-Research
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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