Factors controlling the competition between Phaeocystis and diatoms in the Southern Ocean and implications for carbon export fluxes ...
The high-latitude Southern Ocean phytoplankton community is shaped by the competition between Phaeocystis and silicifying diatoms, with the relative abundance of these two groups controlling primary and export production, the production of dimethylsulfide, the ratio of silicic acid and nitrate avail...
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Online Access: | https://dx.doi.org/10.3929/ethz-b-000495300 http://hdl.handle.net/20.500.11850/495300 |
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ftdatacite:10.3929/ethz-b-000495300 2024-04-28T08:39:03+00:00 Factors controlling the competition between Phaeocystis and diatoms in the Southern Ocean and implications for carbon export fluxes ... Nissen, Cara Vogt, Meike 2021 application/pdf https://dx.doi.org/10.3929/ethz-b-000495300 http://hdl.handle.net/20.500.11850/495300 en eng ETH Zurich info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 article-journal Text ScholarlyArticle Journal Article 2021 ftdatacite https://doi.org/10.3929/ethz-b-000495300 2024-04-02T12:34:54Z The high-latitude Southern Ocean phytoplankton community is shaped by the competition between Phaeocystis and silicifying diatoms, with the relative abundance of these two groups controlling primary and export production, the production of dimethylsulfide, the ratio of silicic acid and nitrate available in the water column, and the structure of the food web. Here, we investigate this competition using a regional physical–biogeochemical–ecological model (ROMS-BEC) configured at eddy-permitting resolution for the Southern Ocean south of 35∘ S. We improved ROMS-BEC by adding an explicit parameterization of Phaeocystis colonies so that the model, together with the previous addition of an explicit coccolithophore type, now includes all biogeochemically relevant Southern Ocean phytoplankton types. We find that Phaeocystis contribute 46±21 % (1σ in space) and 40±20 % to annual net primary production (NPP) and particulate organic carbon (POC) export south of 60∘ S, respectively, making them an important contributor ... : Biogeosciences, 18 (1) ... Article in Journal/Newspaper Southern Ocean DataCite Metadata Store (German National Library of Science and Technology) |
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Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
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ftdatacite |
language |
English |
description |
The high-latitude Southern Ocean phytoplankton community is shaped by the competition between Phaeocystis and silicifying diatoms, with the relative abundance of these two groups controlling primary and export production, the production of dimethylsulfide, the ratio of silicic acid and nitrate available in the water column, and the structure of the food web. Here, we investigate this competition using a regional physical–biogeochemical–ecological model (ROMS-BEC) configured at eddy-permitting resolution for the Southern Ocean south of 35∘ S. We improved ROMS-BEC by adding an explicit parameterization of Phaeocystis colonies so that the model, together with the previous addition of an explicit coccolithophore type, now includes all biogeochemically relevant Southern Ocean phytoplankton types. We find that Phaeocystis contribute 46±21 % (1σ in space) and 40±20 % to annual net primary production (NPP) and particulate organic carbon (POC) export south of 60∘ S, respectively, making them an important contributor ... : Biogeosciences, 18 (1) ... |
format |
Article in Journal/Newspaper |
author |
Nissen, Cara Vogt, Meike |
spellingShingle |
Nissen, Cara Vogt, Meike Factors controlling the competition between Phaeocystis and diatoms in the Southern Ocean and implications for carbon export fluxes ... |
author_facet |
Nissen, Cara Vogt, Meike |
author_sort |
Nissen, Cara |
title |
Factors controlling the competition between Phaeocystis and diatoms in the Southern Ocean and implications for carbon export fluxes ... |
title_short |
Factors controlling the competition between Phaeocystis and diatoms in the Southern Ocean and implications for carbon export fluxes ... |
title_full |
Factors controlling the competition between Phaeocystis and diatoms in the Southern Ocean and implications for carbon export fluxes ... |
title_fullStr |
Factors controlling the competition between Phaeocystis and diatoms in the Southern Ocean and implications for carbon export fluxes ... |
title_full_unstemmed |
Factors controlling the competition between Phaeocystis and diatoms in the Southern Ocean and implications for carbon export fluxes ... |
title_sort |
factors controlling the competition between phaeocystis and diatoms in the southern ocean and implications for carbon export fluxes ... |
publisher |
ETH Zurich |
publishDate |
2021 |
url |
https://dx.doi.org/10.3929/ethz-b-000495300 http://hdl.handle.net/20.500.11850/495300 |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_doi |
https://doi.org/10.3929/ethz-b-000495300 |
_version_ |
1797570277015552000 |