Similarity in phytoplankton photophysiology among under-ice, marginal ice, and open water environments of Baffin Bay (Arctic Ocean)
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...
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University of California Press
2023
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Online Access: | http://dx.doi.org/10.1525/elementa.2021.00080 https://online.ucpress.edu/elementa/article-pdf/doi/10.1525/elementa.2021.00080/777620/elementa.2021.00080.pdf |
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crunicaliforniap:10.1525/elementa.2021.00080 2023-08-27T04:07:40+02:00 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. 2023 http://dx.doi.org/10.1525/elementa.2021.00080 https://online.ucpress.edu/elementa/article-pdf/doi/10.1525/elementa.2021.00080/777620/elementa.2021.00080.pdf en eng University of California Press http://creativecommons.org/licenses/by/4.0/ Elem Sci Anth volume 11, issue 1 ISSN 2325-1026 Atmospheric Science Geology Geotechnical Engineering and Engineering Geology Ecology Environmental Engineering Oceanography journal-article 2023 crunicaliforniap https://doi.org/10.1525/elementa.2021.00080 2023-08-04T13:13:34Z 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 Arctic Ocean Baffin Bay Baffin Bay Baffin Phytoplankton Sea ice University of California Press (via Crossref) Arctic Arctic Ocean Baffin Bay Elem Sci Anth 11 1 |
institution |
Open Polar |
collection |
University of California Press (via Crossref) |
op_collection_id |
crunicaliforniap |
language |
English |
topic |
Atmospheric Science Geology Geotechnical Engineering and Engineering Geology Ecology Environmental Engineering Oceanography |
spellingShingle |
Atmospheric Science Geology Geotechnical Engineering and Engineering Geology Ecology Environmental Engineering 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 |
Atmospheric Science Geology Geotechnical Engineering and Engineering Geology Ecology Environmental Engineering Oceanography |
description |
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. |
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 |
University of California Press |
publishDate |
2023 |
url |
http://dx.doi.org/10.1525/elementa.2021.00080 https://online.ucpress.edu/elementa/article-pdf/doi/10.1525/elementa.2021.00080/777620/elementa.2021.00080.pdf |
geographic |
Arctic Arctic Ocean Baffin Bay |
geographic_facet |
Arctic Arctic Ocean Baffin Bay |
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 |
Elem Sci Anth volume 11, issue 1 ISSN 2325-1026 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1525/elementa.2021.00080 |
container_title |
Elem Sci Anth |
container_volume |
11 |
container_issue |
1 |
_version_ |
1775348405297479680 |