Phytoplankton lysis predicts dissolved organic carbon release in marine plankton communities
The relationship between the percent extracellular carbon release (PER) and the specific lysis rates of phytoplankton was examined across a range of communities spanning from highly oligotrophic ones in the subtropical Atlantic Ocean to productive ones in the N. African upwelling and the Southern Oc...
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Online Access: | http://hdl.handle.net/10261/86797 https://doi.org/10.5194/bg-10-1259-2013 |
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ftcsic:oai:digital.csic.es:10261/86797 2024-02-11T10:08:50+01:00 Phytoplankton lysis predicts dissolved organic carbon release in marine plankton communities Agustí, Susana Duarte, Carlos M. 2013 http://hdl.handle.net/10261/86797 https://doi.org/10.5194/bg-10-1259-2013 en eng European Geosciences Union doi:10.5194/bg-10-1259-2013 issn: 1726-4170 e-issn: 1726-4189 Biogeosciences 10: 1259-1264 (2013) http://hdl.handle.net/10261/86797 open artículo http://purl.org/coar/resource_type/c_6501 2013 ftcsic https://doi.org/10.5194/bg-10-1259-2013 2024-01-16T09:54:11Z The relationship between the percent extracellular carbon release (PER) and the specific lysis rates of phytoplankton was examined across a range of communities spanning from highly oligotrophic ones in the subtropical Atlantic Ocean to productive ones in the N. African upwelling and the Southern Ocean. Communities in oligotrophic waters supported high phytoplankton cell lysis rates and low particulate primary production rates but high dissolved primary production and PER. The percent extracellular carbon released increased with increasing lysis rates to reach an asymptote at about 80% PER with specific lysis rates > 1.5 d-1, observed in the most oligotrophic conditions tested. These results confirm that high phytoplankton mortality in the oligotrophic ocean leads to high PER, accounting for the large fraction of the photosynthetic carbon channelled through bacteria characteristic of oligotrophic marine communities. © 2013 Author(s). CC Attribution 3.0 License. Peer Reviewed Article in Journal/Newspaper Southern Ocean Digital.CSIC (Spanish National Research Council) Southern Ocean Biogeosciences 10 3 1259 1264 |
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Open Polar |
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Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
description |
The relationship between the percent extracellular carbon release (PER) and the specific lysis rates of phytoplankton was examined across a range of communities spanning from highly oligotrophic ones in the subtropical Atlantic Ocean to productive ones in the N. African upwelling and the Southern Ocean. Communities in oligotrophic waters supported high phytoplankton cell lysis rates and low particulate primary production rates but high dissolved primary production and PER. The percent extracellular carbon released increased with increasing lysis rates to reach an asymptote at about 80% PER with specific lysis rates > 1.5 d-1, observed in the most oligotrophic conditions tested. These results confirm that high phytoplankton mortality in the oligotrophic ocean leads to high PER, accounting for the large fraction of the photosynthetic carbon channelled through bacteria characteristic of oligotrophic marine communities. © 2013 Author(s). CC Attribution 3.0 License. Peer Reviewed |
format |
Article in Journal/Newspaper |
author |
Agustí, Susana Duarte, Carlos M. |
spellingShingle |
Agustí, Susana Duarte, Carlos M. Phytoplankton lysis predicts dissolved organic carbon release in marine plankton communities |
author_facet |
Agustí, Susana Duarte, Carlos M. |
author_sort |
Agustí, Susana |
title |
Phytoplankton lysis predicts dissolved organic carbon release in marine plankton communities |
title_short |
Phytoplankton lysis predicts dissolved organic carbon release in marine plankton communities |
title_full |
Phytoplankton lysis predicts dissolved organic carbon release in marine plankton communities |
title_fullStr |
Phytoplankton lysis predicts dissolved organic carbon release in marine plankton communities |
title_full_unstemmed |
Phytoplankton lysis predicts dissolved organic carbon release in marine plankton communities |
title_sort |
phytoplankton lysis predicts dissolved organic carbon release in marine plankton communities |
publisher |
European Geosciences Union |
publishDate |
2013 |
url |
http://hdl.handle.net/10261/86797 https://doi.org/10.5194/bg-10-1259-2013 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
doi:10.5194/bg-10-1259-2013 issn: 1726-4170 e-issn: 1726-4189 Biogeosciences 10: 1259-1264 (2013) http://hdl.handle.net/10261/86797 |
op_rights |
open |
op_doi |
https://doi.org/10.5194/bg-10-1259-2013 |
container_title |
Biogeosciences |
container_volume |
10 |
container_issue |
3 |
container_start_page |
1259 |
op_container_end_page |
1264 |
_version_ |
1790608455811203072 |