Influence of microbial community composition and metabolism on air−sea ΔpCO2 variation off the western Antarctic Peninsula

Autores
Moreau, Sébastien; Schloss, Irene Ruth; Mostajir, Behzad; Demers, Serge; Almandoz, Gaston Osvaldo; Ferrario, Martha Elba; Ferreyra, Gustavo Adolfo
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We studied CO 2 and O 2 dynamics in the western Antarctic Peninsula (WAP) waters in relation to (1) phytoplankton biomass, (2) microbial community primary production and respiration, and (3), for the first time, phytoplankton composition, during summer and fall in 3 consecutive years (2002, 2003 and 2004). The areal average of δpCO 2 (the difference between surface seawater and atmospheric partial pressure of CO 2) for the 3 yr was significantly negative (.20.04 ± 44.3 μatm, p < 0.01) during the summer to fall period in the region, possibly indicating a CO 2 sink. In the southern WAP (i.e. south of Anvers Island), δpCO 2 was significantly negative (.43.60 ± 39.06 μatm) during fall. In the northern WAP (north of Anvers Island), δpCO 2 values showed a more complex distribution during summer and fall (.4.96 ± 37.6 and 21.71 ± 22.39 μatm, respectively). Chlorophyll a (chl a) concentration averaged 1.03 ± 0.25 μg l.1 and was higher in the south of the peninsula. Phytoplankton composition influenced chl a concentration with higher and lower values for diatom-and phytoflagellate-dominated communities, respectively. A significant negative correlation existed between chl a and δpCO 2. From incubation experiments performed in the northern WAP, respiration was low (averaging 5.1 mmol O 2 m.3 d.1), and the net community production (NCP) correlated negatively with δpCO 2 and positively with %O 2 saturation. However, despite the high NCP values measured, δpCO 2 was significantly positive in the northern WAP during the summer to fall period. Strong mixing and lower chl a concentration may explain this result. In contrast, δpCO 2 was significantly negative in the southern WAP, possibly because of high surface water chl a concentration.
Fil: Moreau, Sébastien. Institut des Sciences de la Mer de Rimouski; Canadá. Université du Québec; Canadá
Fil: Schloss, Irene Ruth. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. 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
Fil: Mostajir, Behzad. Université Montpellier II; Francia
Fil: Demers, Serge. Université du Québec; Canadá. Institut des Sciences de la Mer de Rimouski; Canadá
Fil: Almandoz, Gaston Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Ficología; Argentina
Fil: Ferrario, Martha Elba. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Ficología; Argentina
Fil: Ferreyra, Gustavo Adolfo. Institut des Sciences de la Mer de Rimouski; Canadá. Université du Québec; Canadá
Materia
Co 2 Sinks
Co 2 Sources
Community Respiration
Phytoplankton Biomass
Phytoplankton Composition
Primary Production
Nivel de accesibilidad
acceso abierto
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:11336/76245
Acceder
id CONICETDig_f5366346ec101763f55e40f7d42d70a6
oai_identifier_str oai:ri.conicet.gov.ar:11336/76245
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Influence of microbial community composition and metabolism on air−sea ΔpCO2 variation off the western Antarctic PeninsulaMoreau, SébastienSchloss, Irene RuthMostajir, BehzadDemers, SergeAlmandoz, Gaston OsvaldoFerrario, Martha ElbaFerreyra, Gustavo AdolfoCo 2 SinksCo 2 SourcesCommunity RespirationPhytoplankton BiomassPhytoplankton CompositionPrimary Productionhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1https://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1https://purl.org/becyt/ford/1.7https://purl.org/becyt/ford/1We studied CO 2 and O 2 dynamics in the western Antarctic Peninsula (WAP) waters in relation to (1) phytoplankton biomass, (2) microbial community primary production and respiration, and (3), for the first time, phytoplankton composition, during summer and fall in 3 consecutive years (2002, 2003 and 2004). The areal average of δpCO 2 (the difference between surface seawater and atmospheric partial pressure of CO 2) for the 3 yr was significantly negative (.20.04 ± 44.3 μatm, p < 0.01) during the summer to fall period in the region, possibly indicating a CO 2 sink. In the southern WAP (i.e. south of Anvers Island), δpCO 2 was significantly negative (.43.60 ± 39.06 μatm) during fall. In the northern WAP (north of Anvers Island), δpCO 2 values showed a more complex distribution during summer and fall (.4.96 ± 37.6 and 21.71 ± 22.39 μatm, respectively). Chlorophyll a (chl a) concentration averaged 1.03 ± 0.25 μg l.1 and was higher in the south of the peninsula. Phytoplankton composition influenced chl a concentration with higher and lower values for diatom-and phytoflagellate-dominated communities, respectively. A significant negative correlation existed between chl a and δpCO 2. From incubation experiments performed in the northern WAP, respiration was low (averaging 5.1 mmol O 2 m.3 d.1), and the net community production (NCP) correlated negatively with δpCO 2 and positively with %O 2 saturation. However, despite the high NCP values measured, δpCO 2 was significantly positive in the northern WAP during the summer to fall period. Strong mixing and lower chl a concentration may explain this result. In contrast, δpCO 2 was significantly negative in the southern WAP, possibly because of high surface water chl a concentration.Fil: Moreau, Sébastien. Institut des Sciences de la Mer de Rimouski; Canadá. Université du Québec; CanadáFil: Schloss, Irene Ruth. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Institut des Sciences de la Mer de Rimouski; Canadá. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; ArgentinaFil: Mostajir, Behzad. Université Montpellier II; FranciaFil: Demers, Serge. Université du Québec; Canadá. Institut des Sciences de la Mer de Rimouski; CanadáFil: Almandoz, Gaston Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Ficología; ArgentinaFil: Ferrario, Martha Elba. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Ficología; ArgentinaFil: Ferreyra, Gustavo Adolfo. Institut des Sciences de la Mer de Rimouski; Canadá. Université du Québec; CanadáInter-Research2012-02-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/76245Moreau, Sébastien; Schloss, Irene Ruth; Mostajir, Behzad; Demers, Serge; Almandoz, Gaston Osvaldo; et al.; Influence of microbial community composition and metabolism on air−sea ΔpCO2 variation off the western Antarctic Peninsula; Inter-Research; Marine Ecology Progress Series; 446; 2-2-2012; 45-590171-8630CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.3354/meps09466info:eu-repo/semantics/altIdentifier/url/https://www.int-res.com/abstracts/meps/v446/p45-59/info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T12:09:29Zoai:ri.conicet.gov.ar:11336/76245instacron: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:34982025-10-22 12:09:29.387CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Influence of microbial community composition and metabolism on air−sea ΔpCO2 variation off the western Antarctic Peninsula
title Influence of microbial community composition and metabolism on air−sea ΔpCO2 variation off the western Antarctic Peninsula
spellingShingle Influence of microbial community composition and metabolism on air−sea ΔpCO2 variation off the western Antarctic Peninsula
Moreau, Sébastien
Co 2 Sinks
Co 2 Sources
Community Respiration
Phytoplankton Biomass
Phytoplankton Composition
Primary Production
title_short Influence of microbial community composition and metabolism on air−sea ΔpCO2 variation off the western Antarctic Peninsula
title_full Influence of microbial community composition and metabolism on air−sea ΔpCO2 variation off the western Antarctic Peninsula
title_fullStr Influence of microbial community composition and metabolism on air−sea ΔpCO2 variation off the western Antarctic Peninsula
title_full_unstemmed Influence of microbial community composition and metabolism on air−sea ΔpCO2 variation off the western Antarctic Peninsula
title_sort Influence of microbial community composition and metabolism on air−sea ΔpCO2 variation off the western Antarctic Peninsula
dc.creator.none.fl_str_mv Moreau, Sébastien
Schloss, Irene Ruth
Mostajir, Behzad
Demers, Serge
Almandoz, Gaston Osvaldo
Ferrario, Martha Elba
Ferreyra, Gustavo Adolfo
author Moreau, Sébastien
author_facet Moreau, Sébastien
Schloss, Irene Ruth
Mostajir, Behzad
Demers, Serge
Almandoz, Gaston Osvaldo
Ferrario, Martha Elba
Ferreyra, Gustavo Adolfo
author_role author
author2 Schloss, Irene Ruth
Mostajir, Behzad
Demers, Serge
Almandoz, Gaston Osvaldo
Ferrario, Martha Elba
Ferreyra, Gustavo Adolfo
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Co 2 Sinks
Co 2 Sources
Community Respiration
Phytoplankton Biomass
Phytoplankton Composition
Primary Production
topic Co 2 Sinks
Co 2 Sources
Community Respiration
Phytoplankton Biomass
Phytoplankton Composition
Primary Production
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/1.7
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We studied CO 2 and O 2 dynamics in the western Antarctic Peninsula (WAP) waters in relation to (1) phytoplankton biomass, (2) microbial community primary production and respiration, and (3), for the first time, phytoplankton composition, during summer and fall in 3 consecutive years (2002, 2003 and 2004). The areal average of δpCO 2 (the difference between surface seawater and atmospheric partial pressure of CO 2) for the 3 yr was significantly negative (.20.04 ± 44.3 μatm, p < 0.01) during the summer to fall period in the region, possibly indicating a CO 2 sink. In the southern WAP (i.e. south of Anvers Island), δpCO 2 was significantly negative (.43.60 ± 39.06 μatm) during fall. In the northern WAP (north of Anvers Island), δpCO 2 values showed a more complex distribution during summer and fall (.4.96 ± 37.6 and 21.71 ± 22.39 μatm, respectively). Chlorophyll a (chl a) concentration averaged 1.03 ± 0.25 μg l.1 and was higher in the south of the peninsula. Phytoplankton composition influenced chl a concentration with higher and lower values for diatom-and phytoflagellate-dominated communities, respectively. A significant negative correlation existed between chl a and δpCO 2. From incubation experiments performed in the northern WAP, respiration was low (averaging 5.1 mmol O 2 m.3 d.1), and the net community production (NCP) correlated negatively with δpCO 2 and positively with %O 2 saturation. However, despite the high NCP values measured, δpCO 2 was significantly positive in the northern WAP during the summer to fall period. Strong mixing and lower chl a concentration may explain this result. In contrast, δpCO 2 was significantly negative in the southern WAP, possibly because of high surface water chl a concentration.
Fil: Moreau, Sébastien. Institut des Sciences de la Mer de Rimouski; Canadá. Université du Québec; Canadá
Fil: Schloss, Irene Ruth. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. 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
Fil: Mostajir, Behzad. Université Montpellier II; Francia
Fil: Demers, Serge. Université du Québec; Canadá. Institut des Sciences de la Mer de Rimouski; Canadá
Fil: Almandoz, Gaston Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Ficología; Argentina
Fil: Ferrario, Martha Elba. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Ficología; Argentina
Fil: Ferreyra, Gustavo Adolfo. Institut des Sciences de la Mer de Rimouski; Canadá. Université du Québec; Canadá
description We studied CO 2 and O 2 dynamics in the western Antarctic Peninsula (WAP) waters in relation to (1) phytoplankton biomass, (2) microbial community primary production and respiration, and (3), for the first time, phytoplankton composition, during summer and fall in 3 consecutive years (2002, 2003 and 2004). The areal average of δpCO 2 (the difference between surface seawater and atmospheric partial pressure of CO 2) for the 3 yr was significantly negative (.20.04 ± 44.3 μatm, p < 0.01) during the summer to fall period in the region, possibly indicating a CO 2 sink. In the southern WAP (i.e. south of Anvers Island), δpCO 2 was significantly negative (.43.60 ± 39.06 μatm) during fall. In the northern WAP (north of Anvers Island), δpCO 2 values showed a more complex distribution during summer and fall (.4.96 ± 37.6 and 21.71 ± 22.39 μatm, respectively). Chlorophyll a (chl a) concentration averaged 1.03 ± 0.25 μg l.1 and was higher in the south of the peninsula. Phytoplankton composition influenced chl a concentration with higher and lower values for diatom-and phytoflagellate-dominated communities, respectively. A significant negative correlation existed between chl a and δpCO 2. From incubation experiments performed in the northern WAP, respiration was low (averaging 5.1 mmol O 2 m.3 d.1), and the net community production (NCP) correlated negatively with δpCO 2 and positively with %O 2 saturation. However, despite the high NCP values measured, δpCO 2 was significantly positive in the northern WAP during the summer to fall period. Strong mixing and lower chl a concentration may explain this result. In contrast, δpCO 2 was significantly negative in the southern WAP, possibly because of high surface water chl a concentration.
publishDate 2012
dc.date.none.fl_str_mv 2012-02-02
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/11336/76245
Moreau, Sébastien; Schloss, Irene Ruth; Mostajir, Behzad; Demers, Serge; Almandoz, Gaston Osvaldo; et al.; Influence of microbial community composition and metabolism on air−sea ΔpCO2 variation off the western Antarctic Peninsula; Inter-Research; Marine Ecology Progress Series; 446; 2-2-2012; 45-59
0171-8630
CONICET Digital
CONICET
url http://hdl.handle.net/11336/76245
identifier_str_mv Moreau, Sébastien; Schloss, Irene Ruth; Mostajir, Behzad; Demers, Serge; Almandoz, Gaston Osvaldo; et al.; Influence of microbial community composition and metabolism on air−sea ΔpCO2 variation off the western Antarctic Peninsula; Inter-Research; Marine Ecology Progress Series; 446; 2-2-2012; 45-59
0171-8630
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/meps09466
info:eu-repo/semantics/altIdentifier/url/https://www.int-res.com/abstracts/meps/v446/p45-59/
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
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
_version_ 1846782473159049216
score 12.982451

Publicaciones similares