Downward particle flux and carbon export in the Beaufort Sea, Arctic Ocean; the role of zooplankton

Autores
Miquel, J. C.; Gasser, B.; Martín de Nascimento, Jacobo; Marec, M.; Babin, M.; Fortier, L.; Forest, A.
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
As part of the international, multidisciplinary project Malina, downward particle fluxes were investigated by means of a drifting multi-sediment trap mooring deployed at three sites in the Canadian Beaufort Sea in late summer 2009. Mooring deployments lasted between 28 and 50 h and targeted the shelf-break and the slope along the Beaufort-Mackenzie continental margin, as well as the edge between the Mackenzie Shelf and the Amundsen Gulf. Besides analyses of C and N, the collected material was investigated for pigments, phyto- and microzooplankton, faecal pellets and swimmers. The measured fluxes were relatively low, in the range of 11–54 mg m−2 d−1 for the total mass, 1–15 mg C m−2 d−1 for organic carbon and 0.2–2.5 mg N m−2 d−1 for nitrogen. Comparison with a long-term trap data set from the same sampling area showed that the short-term measurements were at the lower end of the high variability characterizing a rather high flux regime during the study period. The sinking material consisted of aggregates and particles that were characterized by the presence of hetero- and autotrophic microzooplankters and diatoms and by the corresponding pigment signatures. Faecal pellets contribution to sinking carbon flux was important, especially at depths below 100 m, where they represented up to 25 % of the total carbon flux. The vertical distribution of different morphotypes of pellets showed a marked pattern with cylindrical faeces (produced by calanoid copepods) present mainly within the euphotic zone, whereas elliptical pellets (produced mainly by smaller copepods) were more abundant at mesopelagic depths. These features, together with the density of matter within the pellets, highlighted the role of the zooplankton community in the transformation of carbon issued from the primary production and the transition of that carbon from the productive surface zone to the Arctic Ocean's interior. Our data indicate that sinking carbon flux in this late summer period is primarily the result of a heterotrophic-driven ecosystem.
Fil: Miquel, J. C.. International Atomic Energy Agency. Environment Laboratories; Mónaco
Fil: Gasser, B.. International Atomic Energy Agency. Environment Laboratories; Mónaco
Fil: Martín de Nascimento, Jacobo. International Atomic Energy Agency. Environment Laboratories; Mónaco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Marec, M.. Laval University; Canadá
Fil: Babin, M.. Laval University; Canadá
Fil: Fortier, L.. Laval University; Canadá
Fil: Forest, A.. Laval University; Canadá
Materia
DOWNWARD PARTICLE FLUX
ARCTIC OCEAN
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/6850

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network_name_str CONICET Digital (CONICET)
spelling Downward particle flux and carbon export in the Beaufort Sea, Arctic Ocean; the role of zooplanktonMiquel, J. C.Gasser, B.Martín de Nascimento, JacoboMarec, M.Babin, M.Fortier, L.Forest, A.DOWNWARD PARTICLE FLUXARCTIC OCEANhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1As part of the international, multidisciplinary project Malina, downward particle fluxes were investigated by means of a drifting multi-sediment trap mooring deployed at three sites in the Canadian Beaufort Sea in late summer 2009. Mooring deployments lasted between 28 and 50 h and targeted the shelf-break and the slope along the Beaufort-Mackenzie continental margin, as well as the edge between the Mackenzie Shelf and the Amundsen Gulf. Besides analyses of C and N, the collected material was investigated for pigments, phyto- and microzooplankton, faecal pellets and swimmers. The measured fluxes were relatively low, in the range of 11–54 mg m−2 d−1 for the total mass, 1–15 mg C m−2 d−1 for organic carbon and 0.2–2.5 mg N m−2 d−1 for nitrogen. Comparison with a long-term trap data set from the same sampling area showed that the short-term measurements were at the lower end of the high variability characterizing a rather high flux regime during the study period. The sinking material consisted of aggregates and particles that were characterized by the presence of hetero- and autotrophic microzooplankters and diatoms and by the corresponding pigment signatures. Faecal pellets contribution to sinking carbon flux was important, especially at depths below 100 m, where they represented up to 25 % of the total carbon flux. The vertical distribution of different morphotypes of pellets showed a marked pattern with cylindrical faeces (produced by calanoid copepods) present mainly within the euphotic zone, whereas elliptical pellets (produced mainly by smaller copepods) were more abundant at mesopelagic depths. These features, together with the density of matter within the pellets, highlighted the role of the zooplankton community in the transformation of carbon issued from the primary production and the transition of that carbon from the productive surface zone to the Arctic Ocean's interior. Our data indicate that sinking carbon flux in this late summer period is primarily the result of a heterotrophic-driven ecosystem.Fil: Miquel, J. C.. International Atomic Energy Agency. Environment Laboratories; MónacoFil: Gasser, B.. International Atomic Energy Agency. Environment Laboratories; MónacoFil: Martín de Nascimento, Jacobo. International Atomic Energy Agency. Environment Laboratories; Mónaco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaFil: Marec, M.. Laval University; CanadáFil: Babin, M.. Laval University; CanadáFil: Fortier, L.. Laval University; CanadáFil: Forest, A.. Laval University; CanadáCopernicus Publications2015-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/6850Miquel, J. C.; Gasser, B.; Martín de Nascimento, Jacobo; Marec, M.; Babin, M.; et al.; Downward particle flux and carbon export in the Beaufort Sea, Arctic Ocean; the role of zooplankton; Copernicus Publications; Biogeosciences; 12; 8-2015; 5103-51171726-41701726-4189enginfo:eu-repo/semantics/altIdentifier/url/http://www.biogeosciences.net/12/5103/2015/info:eu-repo/semantics/altIdentifier/doi/10.5194/bg-12-5103-2015info:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:13:30Zoai:ri.conicet.gov.ar:11336/6850instacron: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 10:13:30.796CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Downward particle flux and carbon export in the Beaufort Sea, Arctic Ocean; the role of zooplankton
title Downward particle flux and carbon export in the Beaufort Sea, Arctic Ocean; the role of zooplankton
spellingShingle Downward particle flux and carbon export in the Beaufort Sea, Arctic Ocean; the role of zooplankton
Miquel, J. C.
DOWNWARD PARTICLE FLUX
ARCTIC OCEAN
title_short Downward particle flux and carbon export in the Beaufort Sea, Arctic Ocean; the role of zooplankton
title_full Downward particle flux and carbon export in the Beaufort Sea, Arctic Ocean; the role of zooplankton
title_fullStr Downward particle flux and carbon export in the Beaufort Sea, Arctic Ocean; the role of zooplankton
title_full_unstemmed Downward particle flux and carbon export in the Beaufort Sea, Arctic Ocean; the role of zooplankton
title_sort Downward particle flux and carbon export in the Beaufort Sea, Arctic Ocean; the role of zooplankton
dc.creator.none.fl_str_mv Miquel, J. C.
Gasser, B.
Martín de Nascimento, Jacobo
Marec, M.
Babin, M.
Fortier, L.
Forest, A.
author Miquel, J. C.
author_facet Miquel, J. C.
Gasser, B.
Martín de Nascimento, Jacobo
Marec, M.
Babin, M.
Fortier, L.
Forest, A.
author_role author
author2 Gasser, B.
Martín de Nascimento, Jacobo
Marec, M.
Babin, M.
Fortier, L.
Forest, A.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv DOWNWARD PARTICLE FLUX
ARCTIC OCEAN
topic DOWNWARD PARTICLE FLUX
ARCTIC OCEAN
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv As part of the international, multidisciplinary project Malina, downward particle fluxes were investigated by means of a drifting multi-sediment trap mooring deployed at three sites in the Canadian Beaufort Sea in late summer 2009. Mooring deployments lasted between 28 and 50 h and targeted the shelf-break and the slope along the Beaufort-Mackenzie continental margin, as well as the edge between the Mackenzie Shelf and the Amundsen Gulf. Besides analyses of C and N, the collected material was investigated for pigments, phyto- and microzooplankton, faecal pellets and swimmers. The measured fluxes were relatively low, in the range of 11–54 mg m−2 d−1 for the total mass, 1–15 mg C m−2 d−1 for organic carbon and 0.2–2.5 mg N m−2 d−1 for nitrogen. Comparison with a long-term trap data set from the same sampling area showed that the short-term measurements were at the lower end of the high variability characterizing a rather high flux regime during the study period. The sinking material consisted of aggregates and particles that were characterized by the presence of hetero- and autotrophic microzooplankters and diatoms and by the corresponding pigment signatures. Faecal pellets contribution to sinking carbon flux was important, especially at depths below 100 m, where they represented up to 25 % of the total carbon flux. The vertical distribution of different morphotypes of pellets showed a marked pattern with cylindrical faeces (produced by calanoid copepods) present mainly within the euphotic zone, whereas elliptical pellets (produced mainly by smaller copepods) were more abundant at mesopelagic depths. These features, together with the density of matter within the pellets, highlighted the role of the zooplankton community in the transformation of carbon issued from the primary production and the transition of that carbon from the productive surface zone to the Arctic Ocean's interior. Our data indicate that sinking carbon flux in this late summer period is primarily the result of a heterotrophic-driven ecosystem.
Fil: Miquel, J. C.. International Atomic Energy Agency. Environment Laboratories; Mónaco
Fil: Gasser, B.. International Atomic Energy Agency. Environment Laboratories; Mónaco
Fil: Martín de Nascimento, Jacobo. International Atomic Energy Agency. Environment Laboratories; Mónaco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Marec, M.. Laval University; Canadá
Fil: Babin, M.. Laval University; Canadá
Fil: Fortier, L.. Laval University; Canadá
Fil: Forest, A.. Laval University; Canadá
description As part of the international, multidisciplinary project Malina, downward particle fluxes were investigated by means of a drifting multi-sediment trap mooring deployed at three sites in the Canadian Beaufort Sea in late summer 2009. Mooring deployments lasted between 28 and 50 h and targeted the shelf-break and the slope along the Beaufort-Mackenzie continental margin, as well as the edge between the Mackenzie Shelf and the Amundsen Gulf. Besides analyses of C and N, the collected material was investigated for pigments, phyto- and microzooplankton, faecal pellets and swimmers. The measured fluxes were relatively low, in the range of 11–54 mg m−2 d−1 for the total mass, 1–15 mg C m−2 d−1 for organic carbon and 0.2–2.5 mg N m−2 d−1 for nitrogen. Comparison with a long-term trap data set from the same sampling area showed that the short-term measurements were at the lower end of the high variability characterizing a rather high flux regime during the study period. The sinking material consisted of aggregates and particles that were characterized by the presence of hetero- and autotrophic microzooplankters and diatoms and by the corresponding pigment signatures. Faecal pellets contribution to sinking carbon flux was important, especially at depths below 100 m, where they represented up to 25 % of the total carbon flux. The vertical distribution of different morphotypes of pellets showed a marked pattern with cylindrical faeces (produced by calanoid copepods) present mainly within the euphotic zone, whereas elliptical pellets (produced mainly by smaller copepods) were more abundant at mesopelagic depths. These features, together with the density of matter within the pellets, highlighted the role of the zooplankton community in the transformation of carbon issued from the primary production and the transition of that carbon from the productive surface zone to the Arctic Ocean's interior. Our data indicate that sinking carbon flux in this late summer period is primarily the result of a heterotrophic-driven ecosystem.
publishDate 2015
dc.date.none.fl_str_mv 2015-08
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/11336/6850
Miquel, J. C.; Gasser, B.; Martín de Nascimento, Jacobo; Marec, M.; Babin, M.; et al.; Downward particle flux and carbon export in the Beaufort Sea, Arctic Ocean; the role of zooplankton; Copernicus Publications; Biogeosciences; 12; 8-2015; 5103-5117
1726-4170
1726-4189
url http://hdl.handle.net/11336/6850
identifier_str_mv Miquel, J. C.; Gasser, B.; Martín de Nascimento, Jacobo; Marec, M.; Babin, M.; et al.; Downward particle flux and carbon export in the Beaufort Sea, Arctic Ocean; the role of zooplankton; Copernicus Publications; Biogeosciences; 12; 8-2015; 5103-5117
1726-4170
1726-4189
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.biogeosciences.net/12/5103/2015/
info:eu-repo/semantics/altIdentifier/doi/10.5194/bg-12-5103-2015
info:eu-repo/semantics/altIdentifier/doi/
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Copernicus Publications
publisher.none.fl_str_mv Copernicus Publications
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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