New Production Regulates Export Stoichiometry in the Ocean
8 pages, 4 figures, 4 tables The proportion in which carbon and growth-limiting nutrients are exported from the oceans' productive surface layer to the deep sea is a crucial parameter in models of the biological carbon pump. Based on >400 vertical flux observations of particulate organic car...
Published in: | PLoS ONE |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Public Library of Science
2013
|
Subjects: | |
Online Access: | http://hdl.handle.net/10261/115528 https://doi.org/10.1371/journal.pone.0054027 |
id |
ftcsic:oai:digital.csic.es:10261/115528 |
---|---|
record_format |
openpolar |
spelling |
ftcsic:oai:digital.csic.es:10261/115528 2024-02-11T10:00:26+01:00 New Production Regulates Export Stoichiometry in the Ocean Tamelander, Tobias Reigstad, Marit Olli, Kalle Slagstad, Dad Wassmann, Paul F. 2013-01-16 http://hdl.handle.net/10261/115528 https://doi.org/10.1371/journal.pone.0054027 unknown Public Library of Science https://doi.org/10.1371/journal.pone.0054027 doi:10.1371/journal.pone.0054027 issn: 1932-6203 PLoS ONE 8(1): e54027 (2013) http://hdl.handle.net/10261/115528 23342065 open artículo http://purl.org/coar/resource_type/c_6501 2013 ftcsic https://doi.org/10.1371/journal.pone.0054027 2024-01-16T10:07:27Z 8 pages, 4 figures, 4 tables The proportion in which carbon and growth-limiting nutrients are exported from the oceans' productive surface layer to the deep sea is a crucial parameter in models of the biological carbon pump. Based on >400 vertical flux observations of particulate organic carbon (POC) and nitrogen (PON) from the European Arctic Ocean we show the common assumption of constant C:N stoichiometry not to be met. Exported POC:PON ratios exceeded the classical Redfield atomic ratio of 6.625 in the entire region, with the largest deviation in the deep Central Arctic Ocean. In this part the mean exported POC:PON ratio of 9.7 (a:a) implies c. 40% higher carbon export compared to Redfield-based estimates. When spatially integrated, the potential POC export in the European Arctic was 10-30% higher than suggested by calculations based on constant POC:PON ratios. We further demonstrate that the exported POC:PON ratio varies regionally in relation to nitrate-based new production over geographical scales that range from the Arctic to the subtropics, being highest in the least productive oligotrophic Central Arctic Ocean and subtropical gyres. Accounting for variations in export stoichiometry among systems of different productivity will improve the ability of models to resolve regional patterns in carbon export and, hence, the oceans' contribution to the global carbon cycle will be predicted more accurately. © 2013 Tamelander et al. This study was financed by the Research Council of Norway (http://www.forskningsradet.no) through the project 184860/S30 MERCLIM (T.T., D.S., P.W.) and by Tromsø forskningsstiftelse through the project CONFLUX (M.R., D.S.) Peer Reviewed Article in Journal/Newspaper Arctic Arctic Ocean Tromsø Digital.CSIC (Spanish National Research Council) Arctic Arctic Ocean Norway Tromsø PLoS ONE 8 1 e54027 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
unknown |
description |
8 pages, 4 figures, 4 tables The proportion in which carbon and growth-limiting nutrients are exported from the oceans' productive surface layer to the deep sea is a crucial parameter in models of the biological carbon pump. Based on >400 vertical flux observations of particulate organic carbon (POC) and nitrogen (PON) from the European Arctic Ocean we show the common assumption of constant C:N stoichiometry not to be met. Exported POC:PON ratios exceeded the classical Redfield atomic ratio of 6.625 in the entire region, with the largest deviation in the deep Central Arctic Ocean. In this part the mean exported POC:PON ratio of 9.7 (a:a) implies c. 40% higher carbon export compared to Redfield-based estimates. When spatially integrated, the potential POC export in the European Arctic was 10-30% higher than suggested by calculations based on constant POC:PON ratios. We further demonstrate that the exported POC:PON ratio varies regionally in relation to nitrate-based new production over geographical scales that range from the Arctic to the subtropics, being highest in the least productive oligotrophic Central Arctic Ocean and subtropical gyres. Accounting for variations in export stoichiometry among systems of different productivity will improve the ability of models to resolve regional patterns in carbon export and, hence, the oceans' contribution to the global carbon cycle will be predicted more accurately. © 2013 Tamelander et al. This study was financed by the Research Council of Norway (http://www.forskningsradet.no) through the project 184860/S30 MERCLIM (T.T., D.S., P.W.) and by Tromsø forskningsstiftelse through the project CONFLUX (M.R., D.S.) Peer Reviewed |
format |
Article in Journal/Newspaper |
author |
Tamelander, Tobias Reigstad, Marit Olli, Kalle Slagstad, Dad Wassmann, Paul F. |
spellingShingle |
Tamelander, Tobias Reigstad, Marit Olli, Kalle Slagstad, Dad Wassmann, Paul F. New Production Regulates Export Stoichiometry in the Ocean |
author_facet |
Tamelander, Tobias Reigstad, Marit Olli, Kalle Slagstad, Dad Wassmann, Paul F. |
author_sort |
Tamelander, Tobias |
title |
New Production Regulates Export Stoichiometry in the Ocean |
title_short |
New Production Regulates Export Stoichiometry in the Ocean |
title_full |
New Production Regulates Export Stoichiometry in the Ocean |
title_fullStr |
New Production Regulates Export Stoichiometry in the Ocean |
title_full_unstemmed |
New Production Regulates Export Stoichiometry in the Ocean |
title_sort |
new production regulates export stoichiometry in the ocean |
publisher |
Public Library of Science |
publishDate |
2013 |
url |
http://hdl.handle.net/10261/115528 https://doi.org/10.1371/journal.pone.0054027 |
geographic |
Arctic Arctic Ocean Norway Tromsø |
geographic_facet |
Arctic Arctic Ocean Norway Tromsø |
genre |
Arctic Arctic Ocean Tromsø |
genre_facet |
Arctic Arctic Ocean Tromsø |
op_relation |
https://doi.org/10.1371/journal.pone.0054027 doi:10.1371/journal.pone.0054027 issn: 1932-6203 PLoS ONE 8(1): e54027 (2013) http://hdl.handle.net/10261/115528 23342065 |
op_rights |
open |
op_doi |
https://doi.org/10.1371/journal.pone.0054027 |
container_title |
PLoS ONE |
container_volume |
8 |
container_issue |
1 |
container_start_page |
e54027 |
_version_ |
1790596138433249280 |