Spatial and temporal variability in export fluxes of biogenic matter in Kongsfjorden
00003 ăWOS:000384551800005 International audience The marine ecosystem of Kongsfjorden experiences large variations in primary productivity due to pronounced seasonal variations in sunlight, glacier melt, and ice cover. The objective of this study was to assess spatial and seasonal variability in th...
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Online Access: | https://hal.science/hal-01483188 https://doi.org/10.1007/s00300-016-1903-4 |
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ftanrparis:oai:HAL:hal-01483188v1 2024-09-15T17:57:59+00:00 Spatial and temporal variability in export fluxes of biogenic matter in Kongsfjorden Lalande, Catherine Moriceau, Brivaëla Leynaert, Aude Morata, Nathalie Takuvik Joint International Laboratory ULAVAL-CNRS Université Laval Québec (ULaval)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Akvaplan-Niva Tromsø Norwegian Institute for Water Research (NIVA) ANR-11-PDOC-0018,ECOTAB,Effet des changements climatiques sur le benthos en Arctique(2011) 2016-10 https://hal.science/hal-01483188 https://doi.org/10.1007/s00300-016-1903-4 en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-016-1903-4 hal-01483188 https://hal.science/hal-01483188 doi:10.1007/s00300-016-1903-4 ISSN: 0722-4060 EISSN: 1432-2056 Polar Biology https://hal.science/hal-01483188 Polar Biology, 2016, 39 (10), pp.1725-1738. ⟨10.1007/s00300-016-1903-4⟩ Arctic arctic fjord barents sea Biogenic matter carbon Export fecal material Kongsfjorden Phytoplankton sea-ice cover Sediment trap Spitsbergen spring bloom Svalbard vertical flux Zooplankton ACL [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2016 ftanrparis https://doi.org/10.1007/s00300-016-1903-4 2024-07-12T11:31:40Z 00003 ăWOS:000384551800005 International audience The marine ecosystem of Kongsfjorden experiences large variations in primary productivity due to pronounced seasonal variations in sunlight, glacier melt, and ice cover. The objective of this study was to assess spatial and seasonal variability in the downward export of biogenic matter in Kongsfjorden. Short-term sediment traps were deployed for periods ranging from 21 to 52 h at three stations from the inner fjord to the outer fjord in May, August, and October 2012 and at one mid-fjord station in January 2013. Total particulate matter, particulate organic carbon, phytoplankton cells, chlorophyll a, biogenic particulate silica, and zooplankton fecal pellet fluxes were measured to determine the magnitude and composition of the material exported in the fjord. The amount and composition of export fluxes reflected a large phytoplankton bloom grazed upon by zooplankton in May, the melting of glaciers and the intrusion of Atlantic Water in August, the end of the glacier melt period in October, and the polar night in January. Overall, seasonal changes in the phytoplankton community impacted export efficiency in the fjord, directly through phytoplankton sinking and indirectly through zooplankton grazing. Results obtained in this study may reflect the magnitude and composition of export fluxes to expect in coming years in Kongsfjorden, especially under conditions of warmer Atlantic Water and longer glacier melt periods. Article in Journal/Newspaper Barents Sea glacier Kongsfjord* Kongsfjorden Phytoplankton Polar Biology polar night Sea ice Svalbard Zooplankton Spitsbergen Portail HAL-ANR (Agence Nationale de la Recherche) Polar Biology 39 10 1725 1738 |
institution |
Open Polar |
collection |
Portail HAL-ANR (Agence Nationale de la Recherche) |
op_collection_id |
ftanrparis |
language |
English |
topic |
Arctic arctic fjord barents sea Biogenic matter carbon Export fecal material Kongsfjorden Phytoplankton sea-ice cover Sediment trap Spitsbergen spring bloom Svalbard vertical flux Zooplankton ACL [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
Arctic arctic fjord barents sea Biogenic matter carbon Export fecal material Kongsfjorden Phytoplankton sea-ice cover Sediment trap Spitsbergen spring bloom Svalbard vertical flux Zooplankton ACL [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Lalande, Catherine Moriceau, Brivaëla Leynaert, Aude Morata, Nathalie Spatial and temporal variability in export fluxes of biogenic matter in Kongsfjorden |
topic_facet |
Arctic arctic fjord barents sea Biogenic matter carbon Export fecal material Kongsfjorden Phytoplankton sea-ice cover Sediment trap Spitsbergen spring bloom Svalbard vertical flux Zooplankton ACL [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
00003 ăWOS:000384551800005 International audience The marine ecosystem of Kongsfjorden experiences large variations in primary productivity due to pronounced seasonal variations in sunlight, glacier melt, and ice cover. The objective of this study was to assess spatial and seasonal variability in the downward export of biogenic matter in Kongsfjorden. Short-term sediment traps were deployed for periods ranging from 21 to 52 h at three stations from the inner fjord to the outer fjord in May, August, and October 2012 and at one mid-fjord station in January 2013. Total particulate matter, particulate organic carbon, phytoplankton cells, chlorophyll a, biogenic particulate silica, and zooplankton fecal pellet fluxes were measured to determine the magnitude and composition of the material exported in the fjord. The amount and composition of export fluxes reflected a large phytoplankton bloom grazed upon by zooplankton in May, the melting of glaciers and the intrusion of Atlantic Water in August, the end of the glacier melt period in October, and the polar night in January. Overall, seasonal changes in the phytoplankton community impacted export efficiency in the fjord, directly through phytoplankton sinking and indirectly through zooplankton grazing. Results obtained in this study may reflect the magnitude and composition of export fluxes to expect in coming years in Kongsfjorden, especially under conditions of warmer Atlantic Water and longer glacier melt periods. |
author2 |
Takuvik Joint International Laboratory ULAVAL-CNRS Université Laval Québec (ULaval)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Akvaplan-Niva Tromsø Norwegian Institute for Water Research (NIVA) ANR-11-PDOC-0018,ECOTAB,Effet des changements climatiques sur le benthos en Arctique(2011) |
format |
Article in Journal/Newspaper |
author |
Lalande, Catherine Moriceau, Brivaëla Leynaert, Aude Morata, Nathalie |
author_facet |
Lalande, Catherine Moriceau, Brivaëla Leynaert, Aude Morata, Nathalie |
author_sort |
Lalande, Catherine |
title |
Spatial and temporal variability in export fluxes of biogenic matter in Kongsfjorden |
title_short |
Spatial and temporal variability in export fluxes of biogenic matter in Kongsfjorden |
title_full |
Spatial and temporal variability in export fluxes of biogenic matter in Kongsfjorden |
title_fullStr |
Spatial and temporal variability in export fluxes of biogenic matter in Kongsfjorden |
title_full_unstemmed |
Spatial and temporal variability in export fluxes of biogenic matter in Kongsfjorden |
title_sort |
spatial and temporal variability in export fluxes of biogenic matter in kongsfjorden |
publisher |
HAL CCSD |
publishDate |
2016 |
url |
https://hal.science/hal-01483188 https://doi.org/10.1007/s00300-016-1903-4 |
genre |
Barents Sea glacier Kongsfjord* Kongsfjorden Phytoplankton Polar Biology polar night Sea ice Svalbard Zooplankton Spitsbergen |
genre_facet |
Barents Sea glacier Kongsfjord* Kongsfjorden Phytoplankton Polar Biology polar night Sea ice Svalbard Zooplankton Spitsbergen |
op_source |
ISSN: 0722-4060 EISSN: 1432-2056 Polar Biology https://hal.science/hal-01483188 Polar Biology, 2016, 39 (10), pp.1725-1738. ⟨10.1007/s00300-016-1903-4⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-016-1903-4 hal-01483188 https://hal.science/hal-01483188 doi:10.1007/s00300-016-1903-4 |
op_doi |
https://doi.org/10.1007/s00300-016-1903-4 |
container_title |
Polar Biology |
container_volume |
39 |
container_issue |
10 |
container_start_page |
1725 |
op_container_end_page |
1738 |
_version_ |
1810434196022231040 |