Shells of the bivalve Astarte moerchi give new evidence of a strong pelagic-benthic coupling shift occurring since the late 1970s in the North Water polynya
International audience Climate changes in the Arctic may weaken the currently tight pelagic-benthic coupling. In response to decreasing sea ice cover, arctic marine systems are expected to shift from a 'sea-ice algae-benthos' to a 'phytoplankton-zooplankton' dominance. We used mo...
Published in: | Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences |
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Main Authors: | , , , , , , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2020
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Subjects: | |
Online Access: | https://doi.org/10.1098/rsta.2019.0353 https://hal.archives-ouvertes.fr/hal-02958917 |
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Open Polar |
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language |
English |
topic |
bivalve growth mismatch hypothesis climate change Arctic sclerochronology pelagic-benthic coupling match acl envir geo |
spellingShingle |
bivalve growth mismatch hypothesis climate change Arctic sclerochronology pelagic-benthic coupling match acl envir geo Olivier, Frédéric Gaillard, Blandine Thébault, Julien Méziane, Tarik Tremblay, Réjean Dumont, Dany Bélanger, Simon Gosselin, Michel Jolivet, Aurélie Chauvaud, Laurent Martel, Andre L. Rysgaard, Søren Olivier, Anne-Hélène Pettré, Julien Mars, Jerome, Gerber, Silvain Archambault, Philippe Shells of the bivalve Astarte moerchi give new evidence of a strong pelagic-benthic coupling shift occurring since the late 1970s in the North Water polynya |
topic_facet |
bivalve growth mismatch hypothesis climate change Arctic sclerochronology pelagic-benthic coupling match acl envir geo |
description |
International audience Climate changes in the Arctic may weaken the currently tight pelagic-benthic coupling. In response to decreasing sea ice cover, arctic marine systems are expected to shift from a 'sea-ice algae-benthos' to a 'phytoplankton-zooplankton' dominance. We used mollusc shells as bioarchives and fatty acid trophic markers to estimate the effects of the reduction of sea ice cover on the food exported to the seafloor. Bathyal bivalve Astarte moerchi living at 600m depth in northern Baffin Bay reveals a clear shift in growth variations and Ba/Ca ratios since the late 1970s, which we relate to a change in food availability. Tissue fatty acid compositions show that this species feeds mainly on microalgae exported from the euphotic zone to the seabed. We, therefore, suggest that changes in pelagic-benthic coupling are likely due either to local changes in sea ice dynamics, mediated through bottom-up regulation exerted by sea ice on phytoplankton production, or to a mismatch between phytoplankton bloom and zooplankton grazing due to phenological change. Both possibilities allow a more regular and increased transfer of food to the seabed. This article is part of the theme issue 'The changing Arctic Ocean: consequences for biological communities, biogeochemical processes and ecosystem functioning'. |
author2 |
Biologie des Organismes et Ecosystèmes Aquatiques (BOREA) Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Université de Caen Normandie (UNICAEN) Normandie Université (NU)-Normandie Université (NU) Muséum national d'Histoire naturelle (MNHN) Université des Antilles (UA) Institut des Sciences de la MER de Rimouski (ISMER) Université du Québec à Rimouski (UQAR) Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR) 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)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS)-Université de Brest (UBO) Departement de Biologie, Chimie et Géographie TBM environnement Canadian Museum of Nature (CANADA) Greenland Climate Research Centre Greenland Institute for Natural Resources (GINR) Centre for Earth Observation Science Winnipeg University of Manitoba Winnipeg Arctic Research Centre Aarhus (ARC) Aarhus University Aarhus Institut de Recherche en Informatique et Systèmes Aléatoires (IRISA) Université de Bretagne Sud (UBS)-Institut National des Sciences Appliquées - Rennes (INSA Rennes) Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National de Recherche en Informatique et en Automatique (Inria)-École normale supérieure - Rennes (ENS Rennes)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1) Université de Rennes (UNIV-RENNES)-CentraleSupélec-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique) Institut Mines-Télécom Paris (IMT)-Institut Mines-Télécom Paris (IMT) Laboratoire Mouvement Sport Santé (M2S) École normale supérieure - Cachan (ENS Cachan)-Université de Rennes 1 (UR1) Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Université de Brest (UBO)-Université de Rennes 2 (UR2) Université de Rennes (UNIV-RENNES)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique ) GIPSA - Signal Images Physique (GIPSA-SIGMAPHY) GIPSA Pôle Sciences des Données (GIPSA-PSD) Grenoble Images Parole Signal Automatique (GIPSA-lab) Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ) Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ) Université Grenoble Alpes (UGA)-Grenoble Images Parole Signal Automatique (GIPSA-lab) Université Grenoble Alpes (UGA) GIPSA-Services (GIPSA-Services) Takuvik International Research Laboratory Université Laval Québec (ULaval)-Centre National de la Recherche Scientifique (CNRS) Université Laval Québec (ULaval) ArcticNet (Network of Centres of Excellence of Canada); Canadian Healthy Oceans Network (CHONe); Natural Sciences and Engineering Research Council of Canada (NSERC) Natural Sciences and Engineering Research Council of Canada; Quebec-Ocean (Fonds de recherche du Quebec - Nature et technologies); MNHN through a 3-year visiting professorship at ISMER-UQAR |
format |
Article in Journal/Newspaper |
author |
Olivier, Frédéric Gaillard, Blandine Thébault, Julien Méziane, Tarik Tremblay, Réjean Dumont, Dany Bélanger, Simon Gosselin, Michel Jolivet, Aurélie Chauvaud, Laurent Martel, Andre L. Rysgaard, Søren Olivier, Anne-Hélène Pettré, Julien Mars, Jerome, Gerber, Silvain Archambault, Philippe |
author_facet |
Olivier, Frédéric Gaillard, Blandine Thébault, Julien Méziane, Tarik Tremblay, Réjean Dumont, Dany Bélanger, Simon Gosselin, Michel Jolivet, Aurélie Chauvaud, Laurent Martel, Andre L. Rysgaard, Søren Olivier, Anne-Hélène Pettré, Julien Mars, Jerome, Gerber, Silvain Archambault, Philippe |
author_sort |
Olivier, Frédéric |
title |
Shells of the bivalve Astarte moerchi give new evidence of a strong pelagic-benthic coupling shift occurring since the late 1970s in the North Water polynya |
title_short |
Shells of the bivalve Astarte moerchi give new evidence of a strong pelagic-benthic coupling shift occurring since the late 1970s in the North Water polynya |
title_full |
Shells of the bivalve Astarte moerchi give new evidence of a strong pelagic-benthic coupling shift occurring since the late 1970s in the North Water polynya |
title_fullStr |
Shells of the bivalve Astarte moerchi give new evidence of a strong pelagic-benthic coupling shift occurring since the late 1970s in the North Water polynya |
title_full_unstemmed |
Shells of the bivalve Astarte moerchi give new evidence of a strong pelagic-benthic coupling shift occurring since the late 1970s in the North Water polynya |
title_sort |
shells of the bivalve astarte moerchi give new evidence of a strong pelagic-benthic coupling shift occurring since the late 1970s in the north water polynya |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://doi.org/10.1098/rsta.2019.0353 https://hal.archives-ouvertes.fr/hal-02958917 |
geographic |
Arctic Arctic Ocean Baffin Bay |
geographic_facet |
Arctic Arctic Ocean Baffin Bay |
genre |
Arctic Arctic Ocean Baffin Bay Baffin Bay Baffin Climate change ice algae Phytoplankton Sea ice Zooplankton |
genre_facet |
Arctic Arctic Ocean Baffin Bay Baffin Bay Baffin Climate change ice algae Phytoplankton Sea ice Zooplankton |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 1364-503X EISSN: 1471-2962 Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Royal Society, The, 2020, 378 (2181), pp.20190353. ⟨10.1098/rsta.2019.0353⟩ |
op_relation |
hal-02958917 doi:10.1098/rsta.2019.0353 PUBMED: 32862812 10670/1.h5e1o2 https://hal.archives-ouvertes.fr/hal-02958917 |
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op_doi |
https://doi.org/10.1098/rsta.2019.0353 |
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Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences |
container_volume |
378 |
container_issue |
2181 |
container_start_page |
20190353 |
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spelling |
fttriple:oai:gotriple.eu:10670/1.h5e1o2 2023-05-15T14:49:18+02:00 Shells of the bivalve Astarte moerchi give new evidence of a strong pelagic-benthic coupling shift occurring since the late 1970s in the North Water polynya Olivier, Frédéric Gaillard, Blandine Thébault, Julien Méziane, Tarik Tremblay, Réjean Dumont, Dany Bélanger, Simon Gosselin, Michel Jolivet, Aurélie Chauvaud, Laurent Martel, Andre L. Rysgaard, Søren Olivier, Anne-Hélène Pettré, Julien Mars, Jerome, Gerber, Silvain Archambault, Philippe Biologie des Organismes et Ecosystèmes Aquatiques (BOREA) Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Université de Caen Normandie (UNICAEN) Normandie Université (NU)-Normandie Université (NU) Muséum national d'Histoire naturelle (MNHN) Université des Antilles (UA) Institut des Sciences de la MER de Rimouski (ISMER) Université du Québec à Rimouski (UQAR) Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR) 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)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS)-Université de Brest (UBO) Departement de Biologie, Chimie et Géographie TBM environnement Canadian Museum of Nature (CANADA) Greenland Climate Research Centre Greenland Institute for Natural Resources (GINR) Centre for Earth Observation Science Winnipeg University of Manitoba Winnipeg Arctic Research Centre Aarhus (ARC) Aarhus University Aarhus Institut de Recherche en Informatique et Systèmes Aléatoires (IRISA) Université de Bretagne Sud (UBS)-Institut National des Sciences Appliquées - Rennes (INSA Rennes) Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National de Recherche en Informatique et en Automatique (Inria)-École normale supérieure - Rennes (ENS Rennes)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1) Université de Rennes (UNIV-RENNES)-CentraleSupélec-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique) Institut Mines-Télécom Paris (IMT)-Institut Mines-Télécom Paris (IMT) Laboratoire Mouvement Sport Santé (M2S) École normale supérieure - Cachan (ENS Cachan)-Université de Rennes 1 (UR1) Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Université de Brest (UBO)-Université de Rennes 2 (UR2) Université de Rennes (UNIV-RENNES)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique ) GIPSA - Signal Images Physique (GIPSA-SIGMAPHY) GIPSA Pôle Sciences des Données (GIPSA-PSD) Grenoble Images Parole Signal Automatique (GIPSA-lab) Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ) Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ) Université Grenoble Alpes (UGA)-Grenoble Images Parole Signal Automatique (GIPSA-lab) Université Grenoble Alpes (UGA) GIPSA-Services (GIPSA-Services) Takuvik International Research Laboratory Université Laval Québec (ULaval)-Centre National de la Recherche Scientifique (CNRS) Université Laval Québec (ULaval) ArcticNet (Network of Centres of Excellence of Canada); Canadian Healthy Oceans Network (CHONe); Natural Sciences and Engineering Research Council of Canada (NSERC) Natural Sciences and Engineering Research Council of Canada; Quebec-Ocean (Fonds de recherche du Quebec - Nature et technologies); MNHN through a 3-year visiting professorship at ISMER-UQAR 2020-10-02 https://doi.org/10.1098/rsta.2019.0353 https://hal.archives-ouvertes.fr/hal-02958917 en eng HAL CCSD Royal Society, The hal-02958917 doi:10.1098/rsta.2019.0353 PUBMED: 32862812 10670/1.h5e1o2 https://hal.archives-ouvertes.fr/hal-02958917 undefined Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 1364-503X EISSN: 1471-2962 Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Royal Society, The, 2020, 378 (2181), pp.20190353. ⟨10.1098/rsta.2019.0353⟩ bivalve growth mismatch hypothesis climate change Arctic sclerochronology pelagic-benthic coupling match acl envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2020 fttriple https://doi.org/10.1098/rsta.2019.0353 2023-01-22T18:29:39Z International audience Climate changes in the Arctic may weaken the currently tight pelagic-benthic coupling. In response to decreasing sea ice cover, arctic marine systems are expected to shift from a 'sea-ice algae-benthos' to a 'phytoplankton-zooplankton' dominance. We used mollusc shells as bioarchives and fatty acid trophic markers to estimate the effects of the reduction of sea ice cover on the food exported to the seafloor. Bathyal bivalve Astarte moerchi living at 600m depth in northern Baffin Bay reveals a clear shift in growth variations and Ba/Ca ratios since the late 1970s, which we relate to a change in food availability. Tissue fatty acid compositions show that this species feeds mainly on microalgae exported from the euphotic zone to the seabed. We, therefore, suggest that changes in pelagic-benthic coupling are likely due either to local changes in sea ice dynamics, mediated through bottom-up regulation exerted by sea ice on phytoplankton production, or to a mismatch between phytoplankton bloom and zooplankton grazing due to phenological change. Both possibilities allow a more regular and increased transfer of food to the seabed. This article is part of the theme issue 'The changing Arctic Ocean: consequences for biological communities, biogeochemical processes and ecosystem functioning'. Article in Journal/Newspaper Arctic Arctic Ocean Baffin Bay Baffin Bay Baffin Climate change ice algae Phytoplankton Sea ice Zooplankton Unknown Arctic Arctic Ocean Baffin Bay Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 378 2181 20190353 |