Relationship between carbon- and oxygen-based primary productivity in the Arctic Ocean, svalbard archipelago
Phytoplankton contribute half of the primary production in the biosphere and are the major source of energy for the Arctic Ocean ecosystem. While primary production measurements are therefore fundamental to our understanding of marine biogeochemical cycling, the extent to which current methods provi...
Published in: | Frontiers in Marine Science |
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Online Access: | http://hdl.handle.net/10261/202916 https://doi.org/10.3389/fmars.2019.00468 https://doi.org/10.13039/501100005416 https://doi.org/10.13039/100000001 https://doi.org/10.13039/100000104 |
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ftcsic:oai:digital.csic.es:10261/202916 2024-02-11T10:00:24+01:00 Relationship between carbon- and oxygen-based primary productivity in the Arctic Ocean, svalbard archipelago Sanz-Martín, Marina Vernet, María Cape, Mattias R. Mesa, Elena Delgado Huertas, Antonio Reigstad, Marit Wassmann, Paul F. Duarte, Carlos M. Norwegian Research Council La Caixa Ministerio de Trabajo, Migraciones y Seguridad Social (España) National Science Foundation (US) National Aeronautics and Space Administration (US) Institute for Advanced Study (Germany) 2019-08-02 http://hdl.handle.net/10261/202916 https://doi.org/10.3389/fmars.2019.00468 https://doi.org/10.13039/501100005416 https://doi.org/10.13039/100000001 https://doi.org/10.13039/100000104 unknown Frontiers Media Publisher's version http://doi.org/10.3389/fmars.2019.00468 Sí Frontiers in Marine Science 6: 468 (2019) http://hdl.handle.net/10261/202916 doi:10.3389/fmars.2019.00468 2296-7745 http://dx.doi.org/10.13039/501100005416 http://dx.doi.org/10.13039/100000001 http://dx.doi.org/10.13039/100000104 open primary production Arctic Ocean oxygen method carbon methodology Svalbard (Arctic) and plankton artículo http://purl.org/coar/resource_type/c_6501 2019 ftcsic https://doi.org/10.3389/fmars.2019.0046810.13039/50110000541610.13039/10000000110.13039/100000104 2024-01-16T10:49:34Z Phytoplankton contribute half of the primary production in the biosphere and are the major source of energy for the Arctic Ocean ecosystem. While primary production measurements are therefore fundamental to our understanding of marine biogeochemical cycling, the extent to which current methods provide a definitive estimate of this process remains uncertain given differences in their underlying approaches and assumptions. This is especially the case in the Arctic Ocean, a region of the planet undergoing rapid evolution as a result of climate change, yet where primary production measurements are sparse. In this study, we compared three common methods for estimating primary production in the European Arctic Ocean: 1) production of 18O-labeled oxygen (GPP-18O), 2) changes in dissolved oxygen (GPP-DO) and 3) incorporation rates of 14C-labelled carbon into particulate organic carbon (14C-POC) and into total organic carbon (14C-TOC, the sum of dissolved and particulate organic carbon). Results show that primary production rates derived using oxygen methods showed good agreement across season and were strongly positively correlated. While also strongly correlated, higher scatter associated with seasonal changes was observed between 14C-POC and 14C-TOC. The 14C-TOC-derived rates were, on average, approximately 50 % of the oxygen-based estimates. However, the relationship between these estimates changed seasonally. In May, during a spring bloom of Phaeocystis sp., 14C-TOC was 52 % and 50 % of GPP-DO and GPP-18O respectively, while in August, during post-bloom conditions dominated by flagellates, 14C-TOC was 125 % of GPP-DO and 14C-TOC was 175 % of GPP-18O. Varying relationship between C and O rates may be the result of varying importance of respiration, where C-based rates estimate Net Primary Production (NPP) and O-based rates estimate Gross Primary Production (GPP).However, uncertainty remains in this comparison, given differing assumptions of the methods and the photosynthetic quotients.The median O:C ratio of 4.75 in ... Article in Journal/Newspaper Arctic Arctic Ocean Climate change Phytoplankton Svalbard Digital.CSIC (Spanish National Research Council) Arctic Arctic Ocean Svalbard Svalbard Archipelago Frontiers in Marine Science 6 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
unknown |
topic |
primary production Arctic Ocean oxygen method carbon methodology Svalbard (Arctic) and plankton |
spellingShingle |
primary production Arctic Ocean oxygen method carbon methodology Svalbard (Arctic) and plankton Sanz-Martín, Marina Vernet, María Cape, Mattias R. Mesa, Elena Delgado Huertas, Antonio Reigstad, Marit Wassmann, Paul F. Duarte, Carlos M. Relationship between carbon- and oxygen-based primary productivity in the Arctic Ocean, svalbard archipelago |
topic_facet |
primary production Arctic Ocean oxygen method carbon methodology Svalbard (Arctic) and plankton |
description |
Phytoplankton contribute half of the primary production in the biosphere and are the major source of energy for the Arctic Ocean ecosystem. While primary production measurements are therefore fundamental to our understanding of marine biogeochemical cycling, the extent to which current methods provide a definitive estimate of this process remains uncertain given differences in their underlying approaches and assumptions. This is especially the case in the Arctic Ocean, a region of the planet undergoing rapid evolution as a result of climate change, yet where primary production measurements are sparse. In this study, we compared three common methods for estimating primary production in the European Arctic Ocean: 1) production of 18O-labeled oxygen (GPP-18O), 2) changes in dissolved oxygen (GPP-DO) and 3) incorporation rates of 14C-labelled carbon into particulate organic carbon (14C-POC) and into total organic carbon (14C-TOC, the sum of dissolved and particulate organic carbon). Results show that primary production rates derived using oxygen methods showed good agreement across season and were strongly positively correlated. While also strongly correlated, higher scatter associated with seasonal changes was observed between 14C-POC and 14C-TOC. The 14C-TOC-derived rates were, on average, approximately 50 % of the oxygen-based estimates. However, the relationship between these estimates changed seasonally. In May, during a spring bloom of Phaeocystis sp., 14C-TOC was 52 % and 50 % of GPP-DO and GPP-18O respectively, while in August, during post-bloom conditions dominated by flagellates, 14C-TOC was 125 % of GPP-DO and 14C-TOC was 175 % of GPP-18O. Varying relationship between C and O rates may be the result of varying importance of respiration, where C-based rates estimate Net Primary Production (NPP) and O-based rates estimate Gross Primary Production (GPP).However, uncertainty remains in this comparison, given differing assumptions of the methods and the photosynthetic quotients.The median O:C ratio of 4.75 in ... |
author2 |
Norwegian Research Council La Caixa Ministerio de Trabajo, Migraciones y Seguridad Social (España) National Science Foundation (US) National Aeronautics and Space Administration (US) Institute for Advanced Study (Germany) |
format |
Article in Journal/Newspaper |
author |
Sanz-Martín, Marina Vernet, María Cape, Mattias R. Mesa, Elena Delgado Huertas, Antonio Reigstad, Marit Wassmann, Paul F. Duarte, Carlos M. |
author_facet |
Sanz-Martín, Marina Vernet, María Cape, Mattias R. Mesa, Elena Delgado Huertas, Antonio Reigstad, Marit Wassmann, Paul F. Duarte, Carlos M. |
author_sort |
Sanz-Martín, Marina |
title |
Relationship between carbon- and oxygen-based primary productivity in the Arctic Ocean, svalbard archipelago |
title_short |
Relationship between carbon- and oxygen-based primary productivity in the Arctic Ocean, svalbard archipelago |
title_full |
Relationship between carbon- and oxygen-based primary productivity in the Arctic Ocean, svalbard archipelago |
title_fullStr |
Relationship between carbon- and oxygen-based primary productivity in the Arctic Ocean, svalbard archipelago |
title_full_unstemmed |
Relationship between carbon- and oxygen-based primary productivity in the Arctic Ocean, svalbard archipelago |
title_sort |
relationship between carbon- and oxygen-based primary productivity in the arctic ocean, svalbard archipelago |
publisher |
Frontiers Media |
publishDate |
2019 |
url |
http://hdl.handle.net/10261/202916 https://doi.org/10.3389/fmars.2019.00468 https://doi.org/10.13039/501100005416 https://doi.org/10.13039/100000001 https://doi.org/10.13039/100000104 |
geographic |
Arctic Arctic Ocean Svalbard Svalbard Archipelago |
geographic_facet |
Arctic Arctic Ocean Svalbard Svalbard Archipelago |
genre |
Arctic Arctic Ocean Climate change Phytoplankton Svalbard |
genre_facet |
Arctic Arctic Ocean Climate change Phytoplankton Svalbard |
op_relation |
Publisher's version http://doi.org/10.3389/fmars.2019.00468 Sí Frontiers in Marine Science 6: 468 (2019) http://hdl.handle.net/10261/202916 doi:10.3389/fmars.2019.00468 2296-7745 http://dx.doi.org/10.13039/501100005416 http://dx.doi.org/10.13039/100000001 http://dx.doi.org/10.13039/100000104 |
op_rights |
open |
op_doi |
https://doi.org/10.3389/fmars.2019.0046810.13039/50110000541610.13039/10000000110.13039/100000104 |
container_title |
Frontiers in Marine Science |
container_volume |
6 |
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1790596103817658368 |