Siliceous micro- and nanoplankton fluxes over the Northwind Ridge and their relationship to environmental conditions in the western Arctic Ocean
International audience Over the last decades the western Arctic Ocean has undergone unprecedented environmental changes. However, long-term marine phytoplankton in situ observations are still rare and therefore insufficient to fully characterize evolutionary trends. This study investigate diatom flu...
Published in: | Deep Sea Research Part I: Oceanographic Research Papers |
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Main Authors: | , , , , , , , , , |
Other Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2021
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Subjects: | |
Online Access: | https://hal.science/hal-03414876 https://hal.science/hal-03414876/document https://hal.science/hal-03414876/file/Ren_DSRI_Arctic%20silic%20micro%20fluxes_Manuscript-pre-proof.pdf https://doi.org/10.1016/j.dsr.2021.103568 |
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ftceafr:oai:HAL:hal-03414876v1 |
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institution |
Open Polar |
collection |
HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) |
op_collection_id |
ftceafr |
language |
English |
topic |
Beaufort Gyre Pacific water inflow Sea ice Northwind Ridge Chukchi Sea Sediment trap Diatoms [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
spellingShingle |
Beaufort Gyre Pacific water inflow Sea ice Northwind Ridge Chukchi Sea Sediment trap Diatoms [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography Ren, Jian Chen, Jianfang Li, Hongliang Wiesner, Martin Bai, Youcheng Sicre, Marie-Alexandrine Yao, Zhixiong Jin, Haiyang Zhuang, Yanpei Li, Yangjie Siliceous micro- and nanoplankton fluxes over the Northwind Ridge and their relationship to environmental conditions in the western Arctic Ocean |
topic_facet |
Beaufort Gyre Pacific water inflow Sea ice Northwind Ridge Chukchi Sea Sediment trap Diatoms [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
International audience Over the last decades the western Arctic Ocean has undergone unprecedented environmental changes. However, long-term marine phytoplankton in situ observations are still rare and therefore insufficient to fully characterize evolutionary trends. This study investigate diatom flux and composition in sediment trap material collected in the Northwind Ridge, western Arctic Ocean from August 2008 to September 2009. Our data show that Chaetoceros resting spores are the predominant species accounting for >40% of the diatom composition. The sea ice diatom group, which includes Fossula arctica, Fragilariopsis cylindrus and F. oceanica, dominates the rest of the assemblage throughout the observation period. While the diatom fluxes in winter are extremely low, higher values are found in summer, with summer 2009 flux values being twice as high as in 2008. High total mass and diatom fluxes in summer 2009 are attributed to the intertwined effect of a weakened Beaufort Gyre, strengthened Pacific Water Inflow (PWI) and distribution pattern of the sea ice. Enhanced values of coastal diatoms and terrigenous proxies in summer 2009 are in agreement with intensified PWI. Sea ice diatoms and sea ice biomarker IP 25 fluxes are both high during the sea ice melting season and significantly correlated (r 2 = 0.64, p < 0.01). Our data also suggest that sea ice diatoms are prone to selective dissolution in the water column and sediments, implying biases on diatom assemblages and subsequently on paleoceanographic reconstructions. |
author2 |
Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) |
format |
Article in Journal/Newspaper |
author |
Ren, Jian Chen, Jianfang Li, Hongliang Wiesner, Martin Bai, Youcheng Sicre, Marie-Alexandrine Yao, Zhixiong Jin, Haiyang Zhuang, Yanpei Li, Yangjie |
author_facet |
Ren, Jian Chen, Jianfang Li, Hongliang Wiesner, Martin Bai, Youcheng Sicre, Marie-Alexandrine Yao, Zhixiong Jin, Haiyang Zhuang, Yanpei Li, Yangjie |
author_sort |
Ren, Jian |
title |
Siliceous micro- and nanoplankton fluxes over the Northwind Ridge and their relationship to environmental conditions in the western Arctic Ocean |
title_short |
Siliceous micro- and nanoplankton fluxes over the Northwind Ridge and their relationship to environmental conditions in the western Arctic Ocean |
title_full |
Siliceous micro- and nanoplankton fluxes over the Northwind Ridge and their relationship to environmental conditions in the western Arctic Ocean |
title_fullStr |
Siliceous micro- and nanoplankton fluxes over the Northwind Ridge and their relationship to environmental conditions in the western Arctic Ocean |
title_full_unstemmed |
Siliceous micro- and nanoplankton fluxes over the Northwind Ridge and their relationship to environmental conditions in the western Arctic Ocean |
title_sort |
siliceous micro- and nanoplankton fluxes over the northwind ridge and their relationship to environmental conditions in the western arctic ocean |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://hal.science/hal-03414876 https://hal.science/hal-03414876/document https://hal.science/hal-03414876/file/Ren_DSRI_Arctic%20silic%20micro%20fluxes_Manuscript-pre-proof.pdf https://doi.org/10.1016/j.dsr.2021.103568 |
genre |
Arctic Arctic Ocean Chukchi Chukchi Sea Phytoplankton Sea ice |
genre_facet |
Arctic Arctic Ocean Chukchi Chukchi Sea Phytoplankton Sea ice |
op_source |
ISSN: 0967-0637 Deep Sea Research Part I: Oceanographic Research Papers https://hal.science/hal-03414876 Deep Sea Research Part I: Oceanographic Research Papers, 2021, 174, pp.103568. ⟨10.1016/j.dsr.2021.103568⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.dsr.2021.103568 hal-03414876 https://hal.science/hal-03414876 https://hal.science/hal-03414876/document https://hal.science/hal-03414876/file/Ren_DSRI_Arctic%20silic%20micro%20fluxes_Manuscript-pre-proof.pdf doi:10.1016/j.dsr.2021.103568 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.dsr.2021.103568 |
container_title |
Deep Sea Research Part I: Oceanographic Research Papers |
container_volume |
174 |
container_start_page |
103568 |
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1799474295554965504 |
spelling |
ftceafr:oai:HAL:hal-03414876v1 2024-05-19T07:35:33+00:00 Siliceous micro- and nanoplankton fluxes over the Northwind Ridge and their relationship to environmental conditions in the western Arctic Ocean Ren, Jian Chen, Jianfang Li, Hongliang Wiesner, Martin Bai, Youcheng Sicre, Marie-Alexandrine Yao, Zhixiong Jin, Haiyang Zhuang, Yanpei Li, Yangjie Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut Pierre-Simon-Laplace (IPSL (FR_636)) École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité)-École normale supérieure - Paris (ENS-PSL) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) 2021-08 https://hal.science/hal-03414876 https://hal.science/hal-03414876/document https://hal.science/hal-03414876/file/Ren_DSRI_Arctic%20silic%20micro%20fluxes_Manuscript-pre-proof.pdf https://doi.org/10.1016/j.dsr.2021.103568 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.dsr.2021.103568 hal-03414876 https://hal.science/hal-03414876 https://hal.science/hal-03414876/document https://hal.science/hal-03414876/file/Ren_DSRI_Arctic%20silic%20micro%20fluxes_Manuscript-pre-proof.pdf doi:10.1016/j.dsr.2021.103568 info:eu-repo/semantics/OpenAccess ISSN: 0967-0637 Deep Sea Research Part I: Oceanographic Research Papers https://hal.science/hal-03414876 Deep Sea Research Part I: Oceanographic Research Papers, 2021, 174, pp.103568. ⟨10.1016/j.dsr.2021.103568⟩ Beaufort Gyre Pacific water inflow Sea ice Northwind Ridge Chukchi Sea Sediment trap Diatoms [SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2021 ftceafr https://doi.org/10.1016/j.dsr.2021.103568 2024-04-25T01:41:00Z International audience Over the last decades the western Arctic Ocean has undergone unprecedented environmental changes. However, long-term marine phytoplankton in situ observations are still rare and therefore insufficient to fully characterize evolutionary trends. This study investigate diatom flux and composition in sediment trap material collected in the Northwind Ridge, western Arctic Ocean from August 2008 to September 2009. Our data show that Chaetoceros resting spores are the predominant species accounting for >40% of the diatom composition. The sea ice diatom group, which includes Fossula arctica, Fragilariopsis cylindrus and F. oceanica, dominates the rest of the assemblage throughout the observation period. While the diatom fluxes in winter are extremely low, higher values are found in summer, with summer 2009 flux values being twice as high as in 2008. High total mass and diatom fluxes in summer 2009 are attributed to the intertwined effect of a weakened Beaufort Gyre, strengthened Pacific Water Inflow (PWI) and distribution pattern of the sea ice. Enhanced values of coastal diatoms and terrigenous proxies in summer 2009 are in agreement with intensified PWI. Sea ice diatoms and sea ice biomarker IP 25 fluxes are both high during the sea ice melting season and significantly correlated (r 2 = 0.64, p < 0.01). Our data also suggest that sea ice diatoms are prone to selective dissolution in the water column and sediments, implying biases on diatom assemblages and subsequently on paleoceanographic reconstructions. Article in Journal/Newspaper Arctic Arctic Ocean Chukchi Chukchi Sea Phytoplankton Sea ice HAL-CEA (Commissariat à l'énergie atomique et aux énergies alternatives) Deep Sea Research Part I: Oceanographic Research Papers 174 103568 |