Factors controlling the competition between Phaeocystis and diatoms in the Southern Ocean ...
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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ftdatacite:10.3929/ethz-b-000398131 2024-04-28T08:39:02+00:00 Factors controlling the competition between Phaeocystis and diatoms in the Southern Ocean ... Nissen, Cara Vogt, Meike 2020 application/pdf https://dx.doi.org/10.3929/ethz-b-000398131 http://hdl.handle.net/20.500.11850/398131 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 Working Paper 2020 ftdatacite https://doi.org/10.3929/ethz-b-000398131 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 extended ROMS-BEC by 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 % and 40 % to annual NPP and POC export south of 60° S, respectively, making them an important contributor to high-latitude carbon cycling. In our simulation, the relative importance of ... : Biogeosciences Discussions ... Text 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 extended ROMS-BEC by 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 % and 40 % to annual NPP and POC export south of 60° S, respectively, making them an important contributor to high-latitude carbon cycling. In our simulation, the relative importance of ... : Biogeosciences Discussions ... |
format |
Text |
author |
Nissen, Cara Vogt, Meike |
spellingShingle |
Nissen, Cara Vogt, Meike Factors controlling the competition between Phaeocystis and diatoms in the Southern Ocean ... |
author_facet |
Nissen, Cara Vogt, Meike |
author_sort |
Nissen, Cara |
title |
Factors controlling the competition between Phaeocystis and diatoms in the Southern Ocean ... |
title_short |
Factors controlling the competition between Phaeocystis and diatoms in the Southern Ocean ... |
title_full |
Factors controlling the competition between Phaeocystis and diatoms in the Southern Ocean ... |
title_fullStr |
Factors controlling the competition between Phaeocystis and diatoms in the Southern Ocean ... |
title_full_unstemmed |
Factors controlling the competition between Phaeocystis and diatoms in the Southern Ocean ... |
title_sort |
factors controlling the competition between phaeocystis and diatoms in the southern ocean ... |
publisher |
ETH Zurich |
publishDate |
2020 |
url |
https://dx.doi.org/10.3929/ethz-b-000398131 http://hdl.handle.net/20.500.11850/398131 |
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-000398131 |
_version_ |
1797570261342486528 |