The advective origin of an under-ice spring bloom in the Arctic Ocean using multiple observational platforms
Under-ice blooms of phytoplankton in the Chukchi Sea have been observed, with strong implications for our understanding of the production regimes in the Arctic Ocean. Using a combination of satellite remote sensing of phytoplankton biomass, in situ observations under sea ice from an autonomous under...
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ftntnutrondheimi:oai:ntnuopen.ntnu.no:11250/2577917 2023-05-15T13:58:49+02:00 The advective origin of an under-ice spring bloom in the Arctic Ocean using multiple observational platforms Johnsen, Geir Norli, Marit Moline, Mark A. Robbins, Ian Quillfeldt, Cecilie von Sørensen, Kai Cottier, Finlo Robert Berge, Jørgen 2018 http://hdl.handle.net/11250/2577917 https://doi.org/10.1007/s00300-018-2278-5 eng eng Springer Verlag https://doi.org/10.1007/s00300-018-2278-5 Norges forskningsråd: 244319 Norges forskningsråd: 223254 Polar Biology. 2018, 41 (6), 1197-1216. urn:issn:0722-4060 http://hdl.handle.net/11250/2577917 cristin:1570375 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no CC-BY 1197-1216 41 Polar Biology 6 Journal article Peer reviewed 2018 ftntnutrondheimi https://doi.org/10.1007/s00300-018-2278-5 2019-09-17T06:54:39Z Under-ice blooms of phytoplankton in the Chukchi Sea have been observed, with strong implications for our understanding of the production regimes in the Arctic Ocean. Using a combination of satellite remote sensing of phytoplankton biomass, in situ observations under sea ice from an autonomous underwater vehicle (AUV), and in vivo photophysiology, we examined the composition, magnitude and origin of a bloom detected beneath the sea ice Northwest of Svalbard (Southern Yermak Plateau) in May 2010. In situ concentration of up to 20 mg chlorophyll a [Chl a] m− 3, were dominated by the northern planktonic spring species of diatoms, Thalassiosira nordenskioeldii, T. antarctica var. borealis, Chaetoceros socialis species complex and Fragilariopsis oceanica. These species were also found south of the marginal ice zone (MIZ). Cells in the water column under the sea ice were typically high-light acclimated, with a mean light saturation index (Ek) of 138 μmol photons m− 2 s−1 and a ratio between photoprotective carotenoids (PPC) and Chl a (w:w) of 0.2. Remotely sensed data of [Chl a] showed a 32,000 km2 bloom developing south of the MIZ. In effect, our data suggest that the observed under-ice bloom was in fact a bloom developed in open waters south of the ice edge, and that a combination of northward-flowing water masses and southward drifting sea ice effectively positioned the bloom under the sea ice. This have implications for our general understanding of under-ice blooms, publishedVersion © The Author(s) 2018 Open Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/) Article in Journal/Newspaper Antarc* Antarctica Arctic Arctic Ocean Chukchi Chukchi Sea Phytoplankton Polar Biology Sea ice Svalbard Yermak plateau NTNU Open Archive (Norwegian University of Science and Technology) Arctic Arctic Ocean Chukchi Sea Svalbard Yermak Plateau ENVELOPE(5.000,5.000,81.250,81.250) Polar Biology 41 6 1197 1216 |
institution |
Open Polar |
collection |
NTNU Open Archive (Norwegian University of Science and Technology) |
op_collection_id |
ftntnutrondheimi |
language |
English |
description |
Under-ice blooms of phytoplankton in the Chukchi Sea have been observed, with strong implications for our understanding of the production regimes in the Arctic Ocean. Using a combination of satellite remote sensing of phytoplankton biomass, in situ observations under sea ice from an autonomous underwater vehicle (AUV), and in vivo photophysiology, we examined the composition, magnitude and origin of a bloom detected beneath the sea ice Northwest of Svalbard (Southern Yermak Plateau) in May 2010. In situ concentration of up to 20 mg chlorophyll a [Chl a] m− 3, were dominated by the northern planktonic spring species of diatoms, Thalassiosira nordenskioeldii, T. antarctica var. borealis, Chaetoceros socialis species complex and Fragilariopsis oceanica. These species were also found south of the marginal ice zone (MIZ). Cells in the water column under the sea ice were typically high-light acclimated, with a mean light saturation index (Ek) of 138 μmol photons m− 2 s−1 and a ratio between photoprotective carotenoids (PPC) and Chl a (w:w) of 0.2. Remotely sensed data of [Chl a] showed a 32,000 km2 bloom developing south of the MIZ. In effect, our data suggest that the observed under-ice bloom was in fact a bloom developed in open waters south of the ice edge, and that a combination of northward-flowing water masses and southward drifting sea ice effectively positioned the bloom under the sea ice. This have implications for our general understanding of under-ice blooms, publishedVersion © The Author(s) 2018 Open Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/) |
format |
Article in Journal/Newspaper |
author |
Johnsen, Geir Norli, Marit Moline, Mark A. Robbins, Ian Quillfeldt, Cecilie von Sørensen, Kai Cottier, Finlo Robert Berge, Jørgen |
spellingShingle |
Johnsen, Geir Norli, Marit Moline, Mark A. Robbins, Ian Quillfeldt, Cecilie von Sørensen, Kai Cottier, Finlo Robert Berge, Jørgen The advective origin of an under-ice spring bloom in the Arctic Ocean using multiple observational platforms |
author_facet |
Johnsen, Geir Norli, Marit Moline, Mark A. Robbins, Ian Quillfeldt, Cecilie von Sørensen, Kai Cottier, Finlo Robert Berge, Jørgen |
author_sort |
Johnsen, Geir |
title |
The advective origin of an under-ice spring bloom in the Arctic Ocean using multiple observational platforms |
title_short |
The advective origin of an under-ice spring bloom in the Arctic Ocean using multiple observational platforms |
title_full |
The advective origin of an under-ice spring bloom in the Arctic Ocean using multiple observational platforms |
title_fullStr |
The advective origin of an under-ice spring bloom in the Arctic Ocean using multiple observational platforms |
title_full_unstemmed |
The advective origin of an under-ice spring bloom in the Arctic Ocean using multiple observational platforms |
title_sort |
advective origin of an under-ice spring bloom in the arctic ocean using multiple observational platforms |
publisher |
Springer Verlag |
publishDate |
2018 |
url |
http://hdl.handle.net/11250/2577917 https://doi.org/10.1007/s00300-018-2278-5 |
long_lat |
ENVELOPE(5.000,5.000,81.250,81.250) |
geographic |
Arctic Arctic Ocean Chukchi Sea Svalbard Yermak Plateau |
geographic_facet |
Arctic Arctic Ocean Chukchi Sea Svalbard Yermak Plateau |
genre |
Antarc* Antarctica Arctic Arctic Ocean Chukchi Chukchi Sea Phytoplankton Polar Biology Sea ice Svalbard Yermak plateau |
genre_facet |
Antarc* Antarctica Arctic Arctic Ocean Chukchi Chukchi Sea Phytoplankton Polar Biology Sea ice Svalbard Yermak plateau |
op_source |
1197-1216 41 Polar Biology 6 |
op_relation |
https://doi.org/10.1007/s00300-018-2278-5 Norges forskningsråd: 244319 Norges forskningsråd: 223254 Polar Biology. 2018, 41 (6), 1197-1216. urn:issn:0722-4060 http://hdl.handle.net/11250/2577917 cristin:1570375 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1007/s00300-018-2278-5 |
container_title |
Polar Biology |
container_volume |
41 |
container_issue |
6 |
container_start_page |
1197 |
op_container_end_page |
1216 |
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1766267189607792640 |