Similarity in phytoplankton photophysiology among under-ice, marginal ice, and open water environments of Baffin Bay (Arctic Ocean)
International audience As sea ice is declining rapidly in the Arctic, phytoplankton are being exposed to very different light regimes. Here we investigated how phytoplankton photoacclimate in three different irradiance regimes: under the ice, in the marginal ice zone, and in open water. We sampled f...
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Online Access: | https://hal.science/hal-04267639 https://hal.science/hal-04267639/document https://hal.science/hal-04267639/file/Joy-Warren_etal_Elementa2100080.pdf https://doi.org/10.1525/elementa.2021.00080 |
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ftccsdartic:oai:HAL:hal-04267639v1 2023-12-31T10:03:16+01:00 Similarity in phytoplankton photophysiology among under-ice, marginal ice, and open water environments of Baffin Bay (Arctic Ocean) Joy-Warren, Hannah, L Lewis, Kate, M Ardyna, Mathieu Tremblay, Jean-Éric Babin, Marcel Arrigo, Kevin, R Stanford EARTH Stanford University Takuvik International Research Laboratory Université Laval Québec (ULaval)-Centre National de la Recherche Scientifique (CNRS) 2023 https://hal.science/hal-04267639 https://hal.science/hal-04267639/document https://hal.science/hal-04267639/file/Joy-Warren_etal_Elementa2100080.pdf https://doi.org/10.1525/elementa.2021.00080 en eng HAL CCSD University of California Press info:eu-repo/semantics/altIdentifier/doi/10.1525/elementa.2021.00080 hal-04267639 https://hal.science/hal-04267639 https://hal.science/hal-04267639/document https://hal.science/hal-04267639/file/Joy-Warren_etal_Elementa2100080.pdf doi:10.1525/elementa.2021.00080 info:eu-repo/semantics/OpenAccess EISSN: 2325-1026 Elementa: Science of the Anthropocene https://hal.science/hal-04267639 Elementa: Science of the Anthropocene, 2023, 11 (1), pp.00080. ⟨10.1525/elementa.2021.00080⟩ Phytoplankton photophysiology Arctic Ocean Marginal ice zone Photoprotection Photodamage [SDV.MP]Life Sciences [q-bio]/Microbiology and Parasitology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2023 ftccsdartic https://doi.org/10.1525/elementa.2021.00080 2023-12-02T23:38:20Z International audience As sea ice is declining rapidly in the Arctic, phytoplankton are being exposed to very different light regimes. Here we investigated how phytoplankton photoacclimate in three different irradiance regimes: under the ice, in the marginal ice zone, and in open water. We sampled from these three regimes in spring-summer 2016 during the Green Edge cruise in Baffin Bay. We also conducted experiments to investigate the impact of shortterm surface light exposure on phytoplankton photophysiology, focusing on processes related to photoprotection and photodamage. These experiments were designed to simulate phytoplankton mixing to the surface or sea ice rapidly disappearing. Despite differences in hydrography, nutrient concentrations, light conditions, and phytoplankton biomass in each regime, the phytoplankton community was similar in terms of photophysiological state. Photoprotective pigments (including the xanthophyll cycle) were high in all three regimes sampled. As with the in situ measurements, ice conditions and light history had little impact on how phytoplankton responded to the light shock, leading us to conclude that phytoplankton are largely prepared for a high light transition, even when originating from low light environments under sea ice. Article in Journal/Newspaper Arctic Arctic Ocean Baffin Bay Baffin Bay Baffin Phytoplankton Sea ice Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Elem Sci Anth 11 1 |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
Phytoplankton photophysiology Arctic Ocean Marginal ice zone Photoprotection Photodamage [SDV.MP]Life Sciences [q-bio]/Microbiology and Parasitology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
spellingShingle |
Phytoplankton photophysiology Arctic Ocean Marginal ice zone Photoprotection Photodamage [SDV.MP]Life Sciences [q-bio]/Microbiology and Parasitology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography Joy-Warren, Hannah, L Lewis, Kate, M Ardyna, Mathieu Tremblay, Jean-Éric Babin, Marcel Arrigo, Kevin, R Similarity in phytoplankton photophysiology among under-ice, marginal ice, and open water environments of Baffin Bay (Arctic Ocean) |
topic_facet |
Phytoplankton photophysiology Arctic Ocean Marginal ice zone Photoprotection Photodamage [SDV.MP]Life Sciences [q-bio]/Microbiology and Parasitology [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
International audience As sea ice is declining rapidly in the Arctic, phytoplankton are being exposed to very different light regimes. Here we investigated how phytoplankton photoacclimate in three different irradiance regimes: under the ice, in the marginal ice zone, and in open water. We sampled from these three regimes in spring-summer 2016 during the Green Edge cruise in Baffin Bay. We also conducted experiments to investigate the impact of shortterm surface light exposure on phytoplankton photophysiology, focusing on processes related to photoprotection and photodamage. These experiments were designed to simulate phytoplankton mixing to the surface or sea ice rapidly disappearing. Despite differences in hydrography, nutrient concentrations, light conditions, and phytoplankton biomass in each regime, the phytoplankton community was similar in terms of photophysiological state. Photoprotective pigments (including the xanthophyll cycle) were high in all three regimes sampled. As with the in situ measurements, ice conditions and light history had little impact on how phytoplankton responded to the light shock, leading us to conclude that phytoplankton are largely prepared for a high light transition, even when originating from low light environments under sea ice. |
author2 |
Stanford EARTH Stanford University Takuvik International Research Laboratory Université Laval Québec (ULaval)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Joy-Warren, Hannah, L Lewis, Kate, M Ardyna, Mathieu Tremblay, Jean-Éric Babin, Marcel Arrigo, Kevin, R |
author_facet |
Joy-Warren, Hannah, L Lewis, Kate, M Ardyna, Mathieu Tremblay, Jean-Éric Babin, Marcel Arrigo, Kevin, R |
author_sort |
Joy-Warren, Hannah, L |
title |
Similarity in phytoplankton photophysiology among under-ice, marginal ice, and open water environments of Baffin Bay (Arctic Ocean) |
title_short |
Similarity in phytoplankton photophysiology among under-ice, marginal ice, and open water environments of Baffin Bay (Arctic Ocean) |
title_full |
Similarity in phytoplankton photophysiology among under-ice, marginal ice, and open water environments of Baffin Bay (Arctic Ocean) |
title_fullStr |
Similarity in phytoplankton photophysiology among under-ice, marginal ice, and open water environments of Baffin Bay (Arctic Ocean) |
title_full_unstemmed |
Similarity in phytoplankton photophysiology among under-ice, marginal ice, and open water environments of Baffin Bay (Arctic Ocean) |
title_sort |
similarity in phytoplankton photophysiology among under-ice, marginal ice, and open water environments of baffin bay (arctic ocean) |
publisher |
HAL CCSD |
publishDate |
2023 |
url |
https://hal.science/hal-04267639 https://hal.science/hal-04267639/document https://hal.science/hal-04267639/file/Joy-Warren_etal_Elementa2100080.pdf https://doi.org/10.1525/elementa.2021.00080 |
genre |
Arctic Arctic Ocean Baffin Bay Baffin Bay Baffin Phytoplankton Sea ice |
genre_facet |
Arctic Arctic Ocean Baffin Bay Baffin Bay Baffin Phytoplankton Sea ice |
op_source |
EISSN: 2325-1026 Elementa: Science of the Anthropocene https://hal.science/hal-04267639 Elementa: Science of the Anthropocene, 2023, 11 (1), pp.00080. ⟨10.1525/elementa.2021.00080⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1525/elementa.2021.00080 hal-04267639 https://hal.science/hal-04267639 https://hal.science/hal-04267639/document https://hal.science/hal-04267639/file/Joy-Warren_etal_Elementa2100080.pdf doi:10.1525/elementa.2021.00080 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1525/elementa.2021.00080 |
container_title |
Elem Sci Anth |
container_volume |
11 |
container_issue |
1 |
_version_ |
1786819703371464704 |