Environmental factors influencing the seasonal dynamics of spring algal blooms in and beneath sea ice in western Baffin Bay
International audience Arctic sea ice is experiencing a shorter growth season and an earlier ice melt onset. The significance of spring microalgal blooms taking place prior to sea ice breakup is the subject of ongoing scientific debate. During the Green Edge project, unique time-series data were col...
Published in: | Elementa: Science of the Anthropocene |
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Main Authors: | , , , , , , , , , , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2019
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Subjects: | |
Online Access: | https://hal.sorbonne-universite.fr/hal-02286666 https://hal.sorbonne-universite.fr/hal-02286666/document https://hal.sorbonne-universite.fr/hal-02286666/file/372-6410-1-PB.pdf https://doi.org/10.1525/elementa.372 |
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ftuniversailles:oai:HAL:hal-02286666v1 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ |
op_collection_id |
ftuniversailles |
language |
English |
topic |
Light and mixing Arctic Ocean Phytoplankton and sea ice algae Under-ice bloom Environmental conditions Baffin Bay [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
spellingShingle |
Light and mixing Arctic Ocean Phytoplankton and sea ice algae Under-ice bloom Environmental conditions Baffin Bay [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography Oziel, Laurent Massicotte, Philippe Randelhoff, Achim Ferland, Joannie Vladoiu, Anda Lacour, Leo Galindo, Virginie Lambert-Girard, Simon Dumont, Dany Cuypers, Yannis Bouruet-Aubertot, Pascale Mundy, C.-J. Ehn, Jens Bécu, Guislain Marec, Claudie Forget, Marie-Hélène Garcia, Nicole Coupel, Pierre Raimbault, Patrick Houssais, Marie-Noëlle Babin, Marcel Environmental factors influencing the seasonal dynamics of spring algal blooms in and beneath sea ice in western Baffin Bay |
topic_facet |
Light and mixing Arctic Ocean Phytoplankton and sea ice algae Under-ice bloom Environmental conditions Baffin Bay [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
International audience Arctic sea ice is experiencing a shorter growth season and an earlier ice melt onset. The significance of spring microalgal blooms taking place prior to sea ice breakup is the subject of ongoing scientific debate. During the Green Edge project, unique time-series data were collected during two field campaigns held in spring 2015 and 2016, which documented for the first time the concomitant temporal evolution of the sea ice algal and phytoplankton blooms in and beneath the landfast sea ice in western Baffin Bay. Sea ice algal and phytoplankton blooms were negatively correlated and respectively reached 26 (6) and 152 (182) mg of chlorophyll a per m2 in 2015 (2016). Here, we describe and compare the seasonal evolutions of a wide variety of physical forcings, particularly key components of the atmosphere–snow–ice–ocean system, that influenced microalgal growth during both years. Ice algal growth was observed under low-light conditions before the snow melt period and was much higher in 2015 due to less snowfall. By increasing light availability and water column stratification, the snow melt onset marked the initiation of the phytoplankton bloom and, concomitantly, the termination of the ice algal bloom. This study therefore underlines the major role of snow on the seasonal dynamics of microalgae in western Baffin Bay. The under-ice water column was dominated by Arctic Waters. Just before the sea ice broke up, phytoplankton had consumed most of the nutrients in the surface layer. A subsurface chlorophyll maximum appeared and deepened, favored by spring tide-induced mixing, reaching the best compromise between light and nutrient availability. This deepening evidenced the importance of upper ocean tidal dynamics for shaping vertical development of the under-ice phytoplankton bloom, a major biological event along the western coast of Baffin Bay, which reached similar magnitude to the offshore ice-edge bloom. |
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) Processus et interactions de fine échelle océanique (PROTEO) 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)-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)) 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) Université du Québec à Rimouski (UQAR) University of Manitoba Winnipeg Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Institut méditerranéen d'océanologie (MIO) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS) Variabilité de l'Océan et de la Glace de mer (VOG) CNES (project #131425), IPEV (project #1164), CSA, Fondation Total, ArcticNet, LEFE and the French Arctic Initiative (Green Edge project) ANR-14-CE01-0017,Green Edge,Productivité biologique dans l'Océan Arctique: réponse passée, présente et future aux fluctuations climatiques, et impacts sur les flux de carbone, le réseau trophique et les communautés humaines locales(2014) |
format |
Article in Journal/Newspaper |
author |
Oziel, Laurent Massicotte, Philippe Randelhoff, Achim Ferland, Joannie Vladoiu, Anda Lacour, Leo Galindo, Virginie Lambert-Girard, Simon Dumont, Dany Cuypers, Yannis Bouruet-Aubertot, Pascale Mundy, C.-J. Ehn, Jens Bécu, Guislain Marec, Claudie Forget, Marie-Hélène Garcia, Nicole Coupel, Pierre Raimbault, Patrick Houssais, Marie-Noëlle Babin, Marcel |
author_facet |
Oziel, Laurent Massicotte, Philippe Randelhoff, Achim Ferland, Joannie Vladoiu, Anda Lacour, Leo Galindo, Virginie Lambert-Girard, Simon Dumont, Dany Cuypers, Yannis Bouruet-Aubertot, Pascale Mundy, C.-J. Ehn, Jens Bécu, Guislain Marec, Claudie Forget, Marie-Hélène Garcia, Nicole Coupel, Pierre Raimbault, Patrick Houssais, Marie-Noëlle Babin, Marcel |
author_sort |
Oziel, Laurent |
title |
Environmental factors influencing the seasonal dynamics of spring algal blooms in and beneath sea ice in western Baffin Bay |
title_short |
Environmental factors influencing the seasonal dynamics of spring algal blooms in and beneath sea ice in western Baffin Bay |
title_full |
Environmental factors influencing the seasonal dynamics of spring algal blooms in and beneath sea ice in western Baffin Bay |
title_fullStr |
Environmental factors influencing the seasonal dynamics of spring algal blooms in and beneath sea ice in western Baffin Bay |
title_full_unstemmed |
Environmental factors influencing the seasonal dynamics of spring algal blooms in and beneath sea ice in western Baffin Bay |
title_sort |
environmental factors influencing the seasonal dynamics of spring algal blooms in and beneath sea ice in western baffin bay |
publisher |
HAL CCSD |
publishDate |
2019 |
url |
https://hal.sorbonne-universite.fr/hal-02286666 https://hal.sorbonne-universite.fr/hal-02286666/document https://hal.sorbonne-universite.fr/hal-02286666/file/372-6410-1-PB.pdf https://doi.org/10.1525/elementa.372 |
genre |
Arctic Arctic Ocean Baffin Bay Baffin Bay Baffin ice algae Phytoplankton Sea ice |
genre_facet |
Arctic Arctic Ocean Baffin Bay Baffin Bay Baffin ice algae Phytoplankton Sea ice |
op_source |
EISSN: 2325-1026 Elementa: Science of the Anthropocene https://hal.sorbonne-universite.fr/hal-02286666 Elementa: Science of the Anthropocene, 2019, 7 (1), pp.34. ⟨10.1525/elementa.372⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1525/elementa.372 hal-02286666 https://hal.sorbonne-universite.fr/hal-02286666 https://hal.sorbonne-universite.fr/hal-02286666/document https://hal.sorbonne-universite.fr/hal-02286666/file/372-6410-1-PB.pdf doi:10.1525/elementa.372 WOS: 000482999400001 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1525/elementa.372 |
container_title |
Elementa: Science of the Anthropocene |
container_volume |
7 |
_version_ |
1799474513055842304 |
spelling |
ftuniversailles:oai:HAL:hal-02286666v1 2024-05-19T07:35:42+00:00 Environmental factors influencing the seasonal dynamics of spring algal blooms in and beneath sea ice in western Baffin Bay Oziel, Laurent Massicotte, Philippe Randelhoff, Achim Ferland, Joannie Vladoiu, Anda Lacour, Leo Galindo, Virginie Lambert-Girard, Simon Dumont, Dany Cuypers, Yannis Bouruet-Aubertot, Pascale Mundy, C.-J. Ehn, Jens Bécu, Guislain Marec, Claudie Forget, Marie-Hélène Garcia, Nicole Coupel, Pierre Raimbault, Patrick Houssais, Marie-Noëlle Babin, Marcel 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) Processus et interactions de fine échelle océanique (PROTEO) 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)-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)) 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) Université du Québec à Rimouski (UQAR) University of Manitoba Winnipeg Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Institut méditerranéen d'océanologie (MIO) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS) Variabilité de l'Océan et de la Glace de mer (VOG) CNES (project #131425), IPEV (project #1164), CSA, Fondation Total, ArcticNet, LEFE and the French Arctic Initiative (Green Edge project) ANR-14-CE01-0017,Green Edge,Productivité biologique dans l'Océan Arctique: réponse passée, présente et future aux fluctuations climatiques, et impacts sur les flux de carbone, le réseau trophique et les communautés humaines locales(2014) 2019-01-02 https://hal.sorbonne-universite.fr/hal-02286666 https://hal.sorbonne-universite.fr/hal-02286666/document https://hal.sorbonne-universite.fr/hal-02286666/file/372-6410-1-PB.pdf https://doi.org/10.1525/elementa.372 en eng HAL CCSD University of California Press info:eu-repo/semantics/altIdentifier/doi/10.1525/elementa.372 hal-02286666 https://hal.sorbonne-universite.fr/hal-02286666 https://hal.sorbonne-universite.fr/hal-02286666/document https://hal.sorbonne-universite.fr/hal-02286666/file/372-6410-1-PB.pdf doi:10.1525/elementa.372 WOS: 000482999400001 info:eu-repo/semantics/OpenAccess EISSN: 2325-1026 Elementa: Science of the Anthropocene https://hal.sorbonne-universite.fr/hal-02286666 Elementa: Science of the Anthropocene, 2019, 7 (1), pp.34. ⟨10.1525/elementa.372⟩ Light and mixing Arctic Ocean Phytoplankton and sea ice algae Under-ice bloom Environmental conditions Baffin Bay [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2019 ftuniversailles https://doi.org/10.1525/elementa.372 2024-04-25T00:31:52Z International audience Arctic sea ice is experiencing a shorter growth season and an earlier ice melt onset. The significance of spring microalgal blooms taking place prior to sea ice breakup is the subject of ongoing scientific debate. During the Green Edge project, unique time-series data were collected during two field campaigns held in spring 2015 and 2016, which documented for the first time the concomitant temporal evolution of the sea ice algal and phytoplankton blooms in and beneath the landfast sea ice in western Baffin Bay. Sea ice algal and phytoplankton blooms were negatively correlated and respectively reached 26 (6) and 152 (182) mg of chlorophyll a per m2 in 2015 (2016). Here, we describe and compare the seasonal evolutions of a wide variety of physical forcings, particularly key components of the atmosphere–snow–ice–ocean system, that influenced microalgal growth during both years. Ice algal growth was observed under low-light conditions before the snow melt period and was much higher in 2015 due to less snowfall. By increasing light availability and water column stratification, the snow melt onset marked the initiation of the phytoplankton bloom and, concomitantly, the termination of the ice algal bloom. This study therefore underlines the major role of snow on the seasonal dynamics of microalgae in western Baffin Bay. The under-ice water column was dominated by Arctic Waters. Just before the sea ice broke up, phytoplankton had consumed most of the nutrients in the surface layer. A subsurface chlorophyll maximum appeared and deepened, favored by spring tide-induced mixing, reaching the best compromise between light and nutrient availability. This deepening evidenced the importance of upper ocean tidal dynamics for shaping vertical development of the under-ice phytoplankton bloom, a major biological event along the western coast of Baffin Bay, which reached similar magnitude to the offshore ice-edge bloom. Article in Journal/Newspaper Arctic Arctic Ocean Baffin Bay Baffin Bay Baffin ice algae Phytoplankton Sea ice Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ Elementa: Science of the Anthropocene 7 |