New production regulates export stoichiometry in the ocean
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...
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Online Access: | https://hdl.handle.net/10037/5616 https://doi.org/10.1371/journal.pone.0054027 |
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ftunivtroemsoe:oai:munin.uit.no:10037/5616 2023-05-15T14:45:37+02:00 New production regulates export stoichiometry in the ocean Tamelander, Tobias Reigstad, Marit Olli, Kalle Slagstad, Dag Wassmann, Paul 2013 https://hdl.handle.net/10037/5616 https://doi.org/10.1371/journal.pone.0054027 eng eng Public Library of Science (PLoS) PLoS ONE (2013), vol. 8(1): e54027 FRIDAID 972943 http://dx.doi.org/10.1371/journal.pone.0054027 1932-6203 https://hdl.handle.net/10037/5616 URN:NBN:no-uit_munin_5310 openAccess VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 Journal article Tidsskriftartikkel Peer reviewed 2013 ftunivtroemsoe https://doi.org/10.1371/journal.pone.0054027 2021-06-25T17:53:42Z 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. Article in Journal/Newspaper Arctic Arctic Ocean University of Tromsø: Munin Open Research Archive Arctic Arctic Ocean PLoS ONE 8 1 e54027 |
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Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 |
spellingShingle |
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 Tamelander, Tobias Reigstad, Marit Olli, Kalle Slagstad, Dag Wassmann, Paul New production regulates export stoichiometry in the ocean |
topic_facet |
VDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497 |
description |
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. |
format |
Article in Journal/Newspaper |
author |
Tamelander, Tobias Reigstad, Marit Olli, Kalle Slagstad, Dag Wassmann, Paul |
author_facet |
Tamelander, Tobias Reigstad, Marit Olli, Kalle Slagstad, Dag Wassmann, Paul |
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 (PLoS) |
publishDate |
2013 |
url |
https://hdl.handle.net/10037/5616 https://doi.org/10.1371/journal.pone.0054027 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean |
genre_facet |
Arctic Arctic Ocean |
op_relation |
PLoS ONE (2013), vol. 8(1): e54027 FRIDAID 972943 http://dx.doi.org/10.1371/journal.pone.0054027 1932-6203 https://hdl.handle.net/10037/5616 URN:NBN:no-uit_munin_5310 |
op_rights |
openAccess |
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_ |
1766317002381590528 |