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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/6850
Ver los metadatos del registro completo
id |
CONICETDig_50f80bd31ed2af94698f7cdeff3fb79a |
---|---|
oai_identifier_str |
oai:ri.conicet.gov.ar:11336/6850 |
network_acronym_str |
CONICETDig |
repository_id_str |
3498 |
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 |
_version_ |
1844614052917018624 |
score |
13.070432 |