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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ftinsu:oai:HAL:hal-04290923v1 2024-09-15T17:53:53+00:00 Similarity in phytoplankton photophysiology among under-ice, marginal ice, and open water environments of Baffin Bay (Arctic Ocean) Joy-Warren, Hannah Lewis, Kate Ardyna, Mathieu Tremblay, Jean-Éric Babin, Marcel Arrigo, Kevin Takuvik International Research Laboratory Université Laval Québec (ULaval)-Centre National de la Recherche Scientifique (CNRS) Laboratoire d'océanographie de Villefranche (LOV) Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de la Mer de Villefranche (IMEV) Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) 2023-05-05 https://hal.science/hal-04290923 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-04290923 https://hal.science/hal-04290923 doi:10.1525/elementa.2021.00080 EISSN: 2325-1026 Elementa: Science of the Anthropocene https://hal.science/hal-04290923 Elementa: Science of the Anthropocene, 2023, 11 (1), ⟨10.1525/elementa.2021.00080⟩ [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2023 ftinsu https://doi.org/10.1525/elementa.2021.00080 2024-07-31T23:43:33Z 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 short-term 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 high light exposure, 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 Ocean Baffin Bay Baffin Bay Baffin Phytoplankton Sea ice Institut national des sciences de l'Univers: HAL-INSU Elem Sci Anth 11 1 |
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Institut national des sciences de l'Univers: HAL-INSU |
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language |
English |
topic |
[SDE]Environmental Sciences |
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[SDE]Environmental Sciences Joy-Warren, Hannah Lewis, Kate Ardyna, Mathieu Tremblay, Jean-Éric Babin, Marcel Arrigo, Kevin Similarity in phytoplankton photophysiology among under-ice, marginal ice, and open water environments of Baffin Bay (Arctic Ocean) |
topic_facet |
[SDE]Environmental Sciences |
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 short-term 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 high light exposure, 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 |
Takuvik International Research Laboratory Université Laval Québec (ULaval)-Centre National de la Recherche Scientifique (CNRS) Laboratoire d'océanographie de Villefranche (LOV) Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de la Mer de Villefranche (IMEV) Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Joy-Warren, Hannah Lewis, Kate Ardyna, Mathieu Tremblay, Jean-Éric Babin, Marcel Arrigo, Kevin |
author_facet |
Joy-Warren, Hannah Lewis, Kate Ardyna, Mathieu Tremblay, Jean-Éric Babin, Marcel Arrigo, Kevin |
author_sort |
Joy-Warren, Hannah |
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-04290923 https://doi.org/10.1525/elementa.2021.00080 |
genre |
Arctic Ocean Baffin Bay Baffin Bay Baffin Phytoplankton Sea ice |
genre_facet |
Arctic Ocean Baffin Bay Baffin Bay Baffin Phytoplankton Sea ice |
op_source |
EISSN: 2325-1026 Elementa: Science of the Anthropocene https://hal.science/hal-04290923 Elementa: Science of the Anthropocene, 2023, 11 (1), ⟨10.1525/elementa.2021.00080⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1525/elementa.2021.00080 hal-04290923 https://hal.science/hal-04290923 doi:10.1525/elementa.2021.00080 |
op_doi |
https://doi.org/10.1525/elementa.2021.00080 |
container_title |
Elem Sci Anth |
container_volume |
11 |
container_issue |
1 |
_version_ |
1810429987692478464 |