Pigment signatures of phytoplankton communities in the Beaufort Sea
International audience Phytoplankton are expected to respond to recent environmental changes of the Arctic Ocean. In terms of bottom-up control, modifying the phytoplankton distribution will ultimately affect the entire food web and carbon export. However, detecting and quantifying changes in phytop...
Published in: | International Journal for Parasitology: Parasites and Wildlife |
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Main Authors: | , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2015
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Subjects: | |
Online Access: | https://hal.sorbonne-universite.fr/hal-01143901 https://hal.sorbonne-universite.fr/hal-01143901/document https://hal.sorbonne-universite.fr/hal-01143901/file/Coupel_2015_Pigment_signatures.pdf https://doi.org/10.5194/bg-12-991-2015 |
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ftepunivpsaclay:oai:HAL:hal-01143901v1 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
École Polytechnique, Université Paris-Saclay: HAL |
op_collection_id |
ftepunivpsaclay |
language |
English |
topic |
[SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
[SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Coupel, Pierre Matsuoka, Atsushi Ruiz-Pino, Diana Gosselin, M. Marie, Dominique Tremblay, Jean-Éric Babin, Marcel Pigment signatures of phytoplankton communities in the Beaufort Sea |
topic_facet |
[SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
International audience Phytoplankton are expected to respond to recent environmental changes of the Arctic Ocean. In terms of bottom-up control, modifying the phytoplankton distribution will ultimately affect the entire food web and carbon export. However, detecting and quantifying changes in phytoplank-ton communities in the Arctic Ocean remains difficult because of the lack of data and the inconsistent identification methods used. Based on pigment and microscopy data sampled in the Beaufort Sea during summer 2009, we optimized the chemotaxonomic tool CHEMTAX (CHEMical TAXon-omy) for the assessment of phytoplankton community composition in an Arctic setting. The geographical distribution of the main phytoplankton groups was determined with clustering methods. Four phytoplankton assemblages were determined and related to bathymetry, nutrients and light availability. Surface waters across the whole survey region were dominated by prasinophytes and chlorophytes, whereas the subsurface chlorophyll maximum was dominated by the cen-tric diatoms Chaetoceros socialis on the shelf and by two populations of nanoflagellates in the deep basin. Microscopic counts showed a high contribution of the heterotrophic di-noflagellates Gymnodinium and Gyrodinium spp. to total carbon biomass, suggesting high grazing activity at this time of the year. However, CHEMTAX was unable to detect these dinoflagellates because they lack peridinin. In heterotrophic dinoflagellates, the inclusion of the pigments of their prey potentially leads to incorrect group assignments and some misinterpretation of CHEMTAX. Thanks to the high repro-ducibility of pigment analysis, our results can serve as a base-line to assess change and spatial or temporal variability in several phytoplankton populations that are not affected by these misinterpretations. |
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) Austral, Boréal et Carbone (ABC) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-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)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-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)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-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)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) Institut des Sciences de la MER de Rimouski (ISMER) Université du Québec à Rimouski (UQAR) Procaryotes Phototrophes Marins = MArine Phototrophic Prokaryotes (MAPP) Adaptation et diversité en milieu marin (AD2M) Station biologique de Roscoff Roscoff (SBR) Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Station biologique de Roscoff Roscoff (SBR) Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Diversité et Interactions au sein du Plancton Océanique (DIPO) |
format |
Article in Journal/Newspaper |
author |
Coupel, Pierre Matsuoka, Atsushi Ruiz-Pino, Diana Gosselin, M. Marie, Dominique Tremblay, Jean-Éric Babin, Marcel |
author_facet |
Coupel, Pierre Matsuoka, Atsushi Ruiz-Pino, Diana Gosselin, M. Marie, Dominique Tremblay, Jean-Éric Babin, Marcel |
author_sort |
Coupel, Pierre |
title |
Pigment signatures of phytoplankton communities in the Beaufort Sea |
title_short |
Pigment signatures of phytoplankton communities in the Beaufort Sea |
title_full |
Pigment signatures of phytoplankton communities in the Beaufort Sea |
title_fullStr |
Pigment signatures of phytoplankton communities in the Beaufort Sea |
title_full_unstemmed |
Pigment signatures of phytoplankton communities in the Beaufort Sea |
title_sort |
pigment signatures of phytoplankton communities in the beaufort sea |
publisher |
HAL CCSD |
publishDate |
2015 |
url |
https://hal.sorbonne-universite.fr/hal-01143901 https://hal.sorbonne-universite.fr/hal-01143901/document https://hal.sorbonne-universite.fr/hal-01143901/file/Coupel_2015_Pigment_signatures.pdf https://doi.org/10.5194/bg-12-991-2015 |
genre |
Arctic Arctic Ocean Beaufort Sea Phytoplankton |
genre_facet |
Arctic Arctic Ocean Beaufort Sea Phytoplankton |
op_source |
ISSN: 1726-4170 EISSN: 1726-4189 Biogeosciences https://hal.sorbonne-universite.fr/hal-01143901 Biogeosciences, 2015, 12 (4), pp.991-1006. ⟨10.5194/bg-12-991-2015⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/bg-12-991-2015 hal-01143901 https://hal.sorbonne-universite.fr/hal-01143901 https://hal.sorbonne-universite.fr/hal-01143901/document https://hal.sorbonne-universite.fr/hal-01143901/file/Coupel_2015_Pigment_signatures.pdf doi:10.5194/bg-12-991-2015 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/bg-12-991-2015 |
container_title |
International Journal for Parasitology: Parasites and Wildlife |
container_volume |
4 |
container_issue |
3 |
container_start_page |
283 |
op_container_end_page |
290 |
_version_ |
1799474254262042624 |
spelling |
ftepunivpsaclay:oai:HAL:hal-01143901v1 2024-05-19T07:35:30+00:00 Pigment signatures of phytoplankton communities in the Beaufort Sea Coupel, Pierre Matsuoka, Atsushi Ruiz-Pino, Diana Gosselin, M. Marie, Dominique Tremblay, Jean-Éric 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) Austral, Boréal et Carbone (ABC) Laboratoire d'Océanographie et du Climat : Expérimentations et Approches Numériques (LOCEAN) Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-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)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-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)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-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)-Université Paris Diderot - Paris 7 (UPD7)-École polytechnique (X)-Centre National d'Études Spatiales Toulouse (CNES)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) Institut des Sciences de la MER de Rimouski (ISMER) Université du Québec à Rimouski (UQAR) Procaryotes Phototrophes Marins = MArine Phototrophic Prokaryotes (MAPP) Adaptation et diversité en milieu marin (AD2M) Station biologique de Roscoff Roscoff (SBR) Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Station biologique de Roscoff Roscoff (SBR) Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Diversité et Interactions au sein du Plancton Océanique (DIPO) 2015-02-17 https://hal.sorbonne-universite.fr/hal-01143901 https://hal.sorbonne-universite.fr/hal-01143901/document https://hal.sorbonne-universite.fr/hal-01143901/file/Coupel_2015_Pigment_signatures.pdf https://doi.org/10.5194/bg-12-991-2015 en eng HAL CCSD European Geosciences Union info:eu-repo/semantics/altIdentifier/doi/10.5194/bg-12-991-2015 hal-01143901 https://hal.sorbonne-universite.fr/hal-01143901 https://hal.sorbonne-universite.fr/hal-01143901/document https://hal.sorbonne-universite.fr/hal-01143901/file/Coupel_2015_Pigment_signatures.pdf doi:10.5194/bg-12-991-2015 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 1726-4170 EISSN: 1726-4189 Biogeosciences https://hal.sorbonne-universite.fr/hal-01143901 Biogeosciences, 2015, 12 (4), pp.991-1006. ⟨10.5194/bg-12-991-2015⟩ [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2015 ftepunivpsaclay https://doi.org/10.5194/bg-12-991-2015 2024-04-25T00:59:00Z International audience Phytoplankton are expected to respond to recent environmental changes of the Arctic Ocean. In terms of bottom-up control, modifying the phytoplankton distribution will ultimately affect the entire food web and carbon export. However, detecting and quantifying changes in phytoplank-ton communities in the Arctic Ocean remains difficult because of the lack of data and the inconsistent identification methods used. Based on pigment and microscopy data sampled in the Beaufort Sea during summer 2009, we optimized the chemotaxonomic tool CHEMTAX (CHEMical TAXon-omy) for the assessment of phytoplankton community composition in an Arctic setting. The geographical distribution of the main phytoplankton groups was determined with clustering methods. Four phytoplankton assemblages were determined and related to bathymetry, nutrients and light availability. Surface waters across the whole survey region were dominated by prasinophytes and chlorophytes, whereas the subsurface chlorophyll maximum was dominated by the cen-tric diatoms Chaetoceros socialis on the shelf and by two populations of nanoflagellates in the deep basin. Microscopic counts showed a high contribution of the heterotrophic di-noflagellates Gymnodinium and Gyrodinium spp. to total carbon biomass, suggesting high grazing activity at this time of the year. However, CHEMTAX was unable to detect these dinoflagellates because they lack peridinin. In heterotrophic dinoflagellates, the inclusion of the pigments of their prey potentially leads to incorrect group assignments and some misinterpretation of CHEMTAX. Thanks to the high repro-ducibility of pigment analysis, our results can serve as a base-line to assess change and spatial or temporal variability in several phytoplankton populations that are not affected by these misinterpretations. Article in Journal/Newspaper Arctic Arctic Ocean Beaufort Sea Phytoplankton École Polytechnique, Université Paris-Saclay: HAL International Journal for Parasitology: Parasites and Wildlife 4 3 283 290 |