Sources, quality and transfers of organic matter in a highly-stratified sub-Arctic coastal system (Saint-Pierre-et-Miquelon, NW Atlantic)
WOS:000604182000002 International audience In response to ongoing global climate change, marine ecosystems in the northwest Atlantic are experiencing one of the most drastic increases in sea surface temperatures in the world. This warming can increase water column stratification and decrease surface...
Published in: | Progress in Oceanography |
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Main Authors: | , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2021
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Subjects: | |
Online Access: | https://hal.science/hal-03246768 https://hal.science/hal-03246768/document https://hal.science/hal-03246768/file/S0079661120302184.pdf https://doi.org/10.1016/j.pocean.2020.102483 |
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ftnormandieuniv:oai:HAL:hal-03246768v1 |
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openpolar |
institution |
Open Polar |
collection |
Normandie Université: HAL |
op_collection_id |
ftnormandieuniv |
language |
English |
topic |
fatty-acid-composition stable-isotopes spring bloom continental-shelf DISCOVERY cell-size BeBest CNRS UBO temporal variation Fatty acids Organic matter zooplankton fecal pellets Pelagic-benthic coupling trophic markers Newfoundland shelf Saint-Pierre et Miquelon archipelago sand dollar Seasonal stratification settling matter Subarctic ecosystems ACL Stable isotopes [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
spellingShingle |
fatty-acid-composition stable-isotopes spring bloom continental-shelf DISCOVERY cell-size BeBest CNRS UBO temporal variation Fatty acids Organic matter zooplankton fecal pellets Pelagic-benthic coupling trophic markers Newfoundland shelf Saint-Pierre et Miquelon archipelago sand dollar Seasonal stratification settling matter Subarctic ecosystems ACL Stable isotopes [SDE.BE]Environmental Sciences/Biodiversity and Ecology Bridier, Guillaume Meziane, Tarik Grall, Jacques Chauvaud, Laurent Donnet, Sebastien Lazure, Pascal Olivier, Frédéric Sources, quality and transfers of organic matter in a highly-stratified sub-Arctic coastal system (Saint-Pierre-et-Miquelon, NW Atlantic) |
topic_facet |
fatty-acid-composition stable-isotopes spring bloom continental-shelf DISCOVERY cell-size BeBest CNRS UBO temporal variation Fatty acids Organic matter zooplankton fecal pellets Pelagic-benthic coupling trophic markers Newfoundland shelf Saint-Pierre et Miquelon archipelago sand dollar Seasonal stratification settling matter Subarctic ecosystems ACL Stable isotopes [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
description |
WOS:000604182000002 International audience In response to ongoing global climate change, marine ecosystems in the northwest Atlantic are experiencing one of the most drastic increases in sea surface temperatures in the world. This warming can increase water column stratification and decrease surface nutrient concentrations, in turn impacting primary productivity and phytoplankton assemblages. However, the exact impacts of these changes on sources and quality of organic matter as well as its transfers to the benthic compartment remain uncertain. This survey characterized organic matter sources and quality within a highly-stratified sub-Arctic coastal system (Saint-Pierre and Miquelon) and described its transfer towards a biomass-dominant primary consumer, the sand dollar Echinarachnius parma. This study analyzed fatty acid and stable isotope (delta C-13 and delta N-15) composition of surface and bottom Particulate Organic Matter (s-POM and b-POM, respectively), Sedimentary Organic Matter (SOM) and sand dollar tissue along a near shore to offshore gradient during two contrasting seasons associated either with sharp or weak water column stratification (i.e. High vs Low Stratification Periods). Results revealed high relative abundances of polyunsaturated fatty acids (notably macro- and microalgae markers) in POM during the Low Stratification Period while the High Stratification Period was characterized by elevated relative abundance of saturated fatty acids indicating a higher organic matter degradation state. In addition, strong seasonal differences were also observed in food availability with four-fold higher concentrations in total suspended solids during Low vs High Stratification Periods. These results suggested thus multiple negative effects of stratification on pelagic-benthic coupling and POM quality. Lower nutrient repletion of surface waters during period of sharp stratification diminishes pelagic-benthic coupling by reducing food availability, POM quality and vertical transfer of organic matter. By ... |
author2 |
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) Biologie des Organismes et Ecosystèmes Aquatiques (BOREA) Université de Caen Normandie (UNICAEN) Normandie Université (NU)-Normandie Université (NU)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA) 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) Fisheries and Oceans Canada (DFO) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Laboratoire d'Océanographie Physique et Spatiale (LOPS) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS) Muséum national d'Histoire naturelle (MNHN) Station de Biologie Marine de Concarneau Direction générale déléguée à la Recherche, à l’Expertise, à la Valorisation et à l’Enseignement-Formation (DGD.REVE) Muséum national d'Histoire naturelle (MNHN)-Muséum national d'Histoire naturelle (MNHN) |
format |
Article in Journal/Newspaper |
author |
Bridier, Guillaume Meziane, Tarik Grall, Jacques Chauvaud, Laurent Donnet, Sebastien Lazure, Pascal Olivier, Frédéric |
author_facet |
Bridier, Guillaume Meziane, Tarik Grall, Jacques Chauvaud, Laurent Donnet, Sebastien Lazure, Pascal Olivier, Frédéric |
author_sort |
Bridier, Guillaume |
title |
Sources, quality and transfers of organic matter in a highly-stratified sub-Arctic coastal system (Saint-Pierre-et-Miquelon, NW Atlantic) |
title_short |
Sources, quality and transfers of organic matter in a highly-stratified sub-Arctic coastal system (Saint-Pierre-et-Miquelon, NW Atlantic) |
title_full |
Sources, quality and transfers of organic matter in a highly-stratified sub-Arctic coastal system (Saint-Pierre-et-Miquelon, NW Atlantic) |
title_fullStr |
Sources, quality and transfers of organic matter in a highly-stratified sub-Arctic coastal system (Saint-Pierre-et-Miquelon, NW Atlantic) |
title_full_unstemmed |
Sources, quality and transfers of organic matter in a highly-stratified sub-Arctic coastal system (Saint-Pierre-et-Miquelon, NW Atlantic) |
title_sort |
sources, quality and transfers of organic matter in a highly-stratified sub-arctic coastal system (saint-pierre-et-miquelon, nw atlantic) |
publisher |
HAL CCSD |
publishDate |
2021 |
url |
https://hal.science/hal-03246768 https://hal.science/hal-03246768/document https://hal.science/hal-03246768/file/S0079661120302184.pdf https://doi.org/10.1016/j.pocean.2020.102483 |
long_lat |
ENVELOPE(57.468,57.468,65.951,65.951) |
geographic |
Arctic Parma |
geographic_facet |
Arctic Parma |
genre |
Arctic Climate change Newfoundland Northwest Atlantic Phytoplankton Subarctic Zooplankton |
genre_facet |
Arctic Climate change Newfoundland Northwest Atlantic Phytoplankton Subarctic Zooplankton |
op_source |
ISSN: 0079-6611 Progress in Oceanography https://hal.science/hal-03246768 Progress in Oceanography, 2021, 190, pp.102483. ⟨10.1016/j.pocean.2020.102483⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.pocean.2020.102483 hal-03246768 https://hal.science/hal-03246768 https://hal.science/hal-03246768/document https://hal.science/hal-03246768/file/S0079661120302184.pdf doi:10.1016/j.pocean.2020.102483 PII: S0079-6611(20)30218-4 |
op_rights |
http://creativecommons.org/licenses/by-nc/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.pocean.2020.102483 |
container_title |
Progress in Oceanography |
container_volume |
190 |
container_start_page |
102483 |
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1796305254314147840 |
spelling |
ftnormandieuniv:oai:HAL:hal-03246768v1 2024-04-14T08:07:51+00:00 Sources, quality and transfers of organic matter in a highly-stratified sub-Arctic coastal system (Saint-Pierre-et-Miquelon, NW Atlantic) Bridier, Guillaume Meziane, Tarik Grall, Jacques Chauvaud, Laurent Donnet, Sebastien Lazure, Pascal Olivier, Frédéric 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) Biologie des Organismes et Ecosystèmes Aquatiques (BOREA) Université de Caen Normandie (UNICAEN) Normandie Université (NU)-Normandie Université (NU)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA) 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) Fisheries and Oceans Canada (DFO) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Laboratoire d'Océanographie Physique et Spatiale (LOPS) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS) Muséum national d'Histoire naturelle (MNHN) Station de Biologie Marine de Concarneau Direction générale déléguée à la Recherche, à l’Expertise, à la Valorisation et à l’Enseignement-Formation (DGD.REVE) Muséum national d'Histoire naturelle (MNHN)-Muséum national d'Histoire naturelle (MNHN) 2021 https://hal.science/hal-03246768 https://hal.science/hal-03246768/document https://hal.science/hal-03246768/file/S0079661120302184.pdf https://doi.org/10.1016/j.pocean.2020.102483 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.pocean.2020.102483 hal-03246768 https://hal.science/hal-03246768 https://hal.science/hal-03246768/document https://hal.science/hal-03246768/file/S0079661120302184.pdf doi:10.1016/j.pocean.2020.102483 PII: S0079-6611(20)30218-4 http://creativecommons.org/licenses/by-nc/ info:eu-repo/semantics/OpenAccess ISSN: 0079-6611 Progress in Oceanography https://hal.science/hal-03246768 Progress in Oceanography, 2021, 190, pp.102483. ⟨10.1016/j.pocean.2020.102483⟩ fatty-acid-composition stable-isotopes spring bloom continental-shelf DISCOVERY cell-size BeBest CNRS UBO temporal variation Fatty acids Organic matter zooplankton fecal pellets Pelagic-benthic coupling trophic markers Newfoundland shelf Saint-Pierre et Miquelon archipelago sand dollar Seasonal stratification settling matter Subarctic ecosystems ACL Stable isotopes [SDE.BE]Environmental Sciences/Biodiversity and Ecology info:eu-repo/semantics/article Journal articles 2021 ftnormandieuniv https://doi.org/10.1016/j.pocean.2020.102483 2024-03-21T16:35:46Z WOS:000604182000002 International audience In response to ongoing global climate change, marine ecosystems in the northwest Atlantic are experiencing one of the most drastic increases in sea surface temperatures in the world. This warming can increase water column stratification and decrease surface nutrient concentrations, in turn impacting primary productivity and phytoplankton assemblages. However, the exact impacts of these changes on sources and quality of organic matter as well as its transfers to the benthic compartment remain uncertain. This survey characterized organic matter sources and quality within a highly-stratified sub-Arctic coastal system (Saint-Pierre and Miquelon) and described its transfer towards a biomass-dominant primary consumer, the sand dollar Echinarachnius parma. This study analyzed fatty acid and stable isotope (delta C-13 and delta N-15) composition of surface and bottom Particulate Organic Matter (s-POM and b-POM, respectively), Sedimentary Organic Matter (SOM) and sand dollar tissue along a near shore to offshore gradient during two contrasting seasons associated either with sharp or weak water column stratification (i.e. High vs Low Stratification Periods). Results revealed high relative abundances of polyunsaturated fatty acids (notably macro- and microalgae markers) in POM during the Low Stratification Period while the High Stratification Period was characterized by elevated relative abundance of saturated fatty acids indicating a higher organic matter degradation state. In addition, strong seasonal differences were also observed in food availability with four-fold higher concentrations in total suspended solids during Low vs High Stratification Periods. These results suggested thus multiple negative effects of stratification on pelagic-benthic coupling and POM quality. Lower nutrient repletion of surface waters during period of sharp stratification diminishes pelagic-benthic coupling by reducing food availability, POM quality and vertical transfer of organic matter. By ... Article in Journal/Newspaper Arctic Climate change Newfoundland Northwest Atlantic Phytoplankton Subarctic Zooplankton Normandie Université: HAL Arctic Parma ENVELOPE(57.468,57.468,65.951,65.951) Progress in Oceanography 190 102483 |