Relationship Between Carbon- and Oxygen-Based Primary Productivity in the Arctic Ocean, Svalbard Archipelago
Phytoplankton contribute half of the primary production (PP) in the biosphere and are the major source of energy for the Arctic Ocean ecosystem. While PP measurements are therefore fundamental to our understanding of marine biogeochemical cycling, the extent to which current methods provide a defini...
Published in: | Frontiers in Marine Science |
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2019
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Online Access: | https://pure.au.dk/portal/da/publications/relationship-between-carbon-and-oxygenbased-primary-productivity-in-the-arctic-ocean-svalbard-archipelago(aeedc50d-922c-4f8f-8125-dbf71d67db60).html https://doi.org/10.3389/fmars.2019.00468 |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/aeedc50d-922c-4f8f-8125-dbf71d67db60 2023-12-24T10:12:04+01:00 Relationship Between Carbon- and Oxygen-Based Primary Productivity in the Arctic Ocean, Svalbard Archipelago Sanz-Martin, Marina Vernet, Maria Cape, Mattias R. Mesa, Elena Delgado-Huertas, Antonio Reigstad, Marit Wassmann, Paul Duarte, Carlos M. 2019-08 https://pure.au.dk/portal/da/publications/relationship-between-carbon-and-oxygenbased-primary-productivity-in-the-arctic-ocean-svalbard-archipelago(aeedc50d-922c-4f8f-8125-dbf71d67db60).html https://doi.org/10.3389/fmars.2019.00468 eng eng https://pure.au.dk/portal/da/publications/relationship-between-carbon-and-oxygenbased-primary-productivity-in-the-arctic-ocean-svalbard-archipelago(aeedc50d-922c-4f8f-8125-dbf71d67db60).html info:eu-repo/semantics/openAccess Sanz-Martin , M , Vernet , M , Cape , M R , Mesa , E , Delgado-Huertas , A , Reigstad , M , Wassmann , P & Duarte , C M 2019 , ' Relationship Between Carbon- and Oxygen-Based Primary Productivity in the Arctic Ocean, Svalbard Archipelago ' , Frontiers in Marine Science , vol. 6 , no. JUL , 468 . https://doi.org/10.3389/fmars.2019.00468 Arctic Ocean C-14 COASTAL WATERS DISSOLVED-OXYGEN GROSS IN-VITRO NET COMMUNITY PRODUCTION O-18 PHYTOPLANKTON PLANKTONIC PRIMARY PRODUCTION RESPIRATION Svalbard (Arctic) and plankton carbon methodology oxygen method primary production article 2019 ftuniaarhuspubl https://doi.org/10.3389/fmars.2019.00468 2023-11-30T00:00:12Z Phytoplankton contribute half of the primary production (PP) in the biosphere and are the major source of energy for the Arctic Ocean ecosystem. While PP 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 PP measurements are sparse. In this study, we compared three common methods for estimating PP in the European Arctic Ocean: (1) production of O-18-labeled oxygen (GPP-O-18), (2) changes in dissolved oxygen (GPP-DO), and (3) incorporation rates of C-14-labeled carbon into particulate organic carbon (C-14-POC) and into total organic carbon (C-14-TOC, the sum of dissolved and particulate organic carbon). Results show that PP 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 C-14-POC and C-14-TOC. The C-14-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., C-14-TOC was 52% and 50% of GPP-DO, and GPP-O-18, respectively, while in August, during post-bloom conditions dominated by flagellates, C-14-TOC was 125% of GPP-DO, and C-14-TOC was 175% of GPP-O-18. 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 May is within the range of that observed ... Article in Journal/Newspaper Arctic Arctic Arctic Ocean Climate change Phytoplankton Svalbard Aarhus University: Research Arctic Arctic Ocean Svalbard Svalbard Archipelago Frontiers in Marine Science 6 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
Arctic Ocean C-14 COASTAL WATERS DISSOLVED-OXYGEN GROSS IN-VITRO NET COMMUNITY PRODUCTION O-18 PHYTOPLANKTON PLANKTONIC PRIMARY PRODUCTION RESPIRATION Svalbard (Arctic) and plankton carbon methodology oxygen method primary production |
spellingShingle |
Arctic Ocean C-14 COASTAL WATERS DISSOLVED-OXYGEN GROSS IN-VITRO NET COMMUNITY PRODUCTION O-18 PHYTOPLANKTON PLANKTONIC PRIMARY PRODUCTION RESPIRATION Svalbard (Arctic) and plankton carbon methodology oxygen method primary production Sanz-Martin, Marina Vernet, Maria Cape, Mattias R. Mesa, Elena Delgado-Huertas, Antonio Reigstad, Marit Wassmann, Paul Duarte, Carlos M. Relationship Between Carbon- and Oxygen-Based Primary Productivity in the Arctic Ocean, Svalbard Archipelago |
topic_facet |
Arctic Ocean C-14 COASTAL WATERS DISSOLVED-OXYGEN GROSS IN-VITRO NET COMMUNITY PRODUCTION O-18 PHYTOPLANKTON PLANKTONIC PRIMARY PRODUCTION RESPIRATION Svalbard (Arctic) and plankton carbon methodology oxygen method primary production |
description |
Phytoplankton contribute half of the primary production (PP) in the biosphere and are the major source of energy for the Arctic Ocean ecosystem. While PP 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 PP measurements are sparse. In this study, we compared three common methods for estimating PP in the European Arctic Ocean: (1) production of O-18-labeled oxygen (GPP-O-18), (2) changes in dissolved oxygen (GPP-DO), and (3) incorporation rates of C-14-labeled carbon into particulate organic carbon (C-14-POC) and into total organic carbon (C-14-TOC, the sum of dissolved and particulate organic carbon). Results show that PP 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 C-14-POC and C-14-TOC. The C-14-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., C-14-TOC was 52% and 50% of GPP-DO, and GPP-O-18, respectively, while in August, during post-bloom conditions dominated by flagellates, C-14-TOC was 125% of GPP-DO, and C-14-TOC was 175% of GPP-O-18. 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 May is within the range of that observed ... |
format |
Article in Journal/Newspaper |
author |
Sanz-Martin, Marina Vernet, Maria Cape, Mattias R. Mesa, Elena Delgado-Huertas, Antonio Reigstad, Marit Wassmann, Paul Duarte, Carlos M. |
author_facet |
Sanz-Martin, Marina Vernet, Maria Cape, Mattias R. Mesa, Elena Delgado-Huertas, Antonio Reigstad, Marit Wassmann, Paul Duarte, Carlos M. |
author_sort |
Sanz-Martin, 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 |
publishDate |
2019 |
url |
https://pure.au.dk/portal/da/publications/relationship-between-carbon-and-oxygenbased-primary-productivity-in-the-arctic-ocean-svalbard-archipelago(aeedc50d-922c-4f8f-8125-dbf71d67db60).html https://doi.org/10.3389/fmars.2019.00468 |
geographic |
Arctic Arctic Ocean Svalbard Svalbard Archipelago |
geographic_facet |
Arctic Arctic Ocean Svalbard Svalbard Archipelago |
genre |
Arctic Arctic Arctic Ocean Climate change Phytoplankton Svalbard |
genre_facet |
Arctic Arctic Arctic Ocean Climate change Phytoplankton Svalbard |
op_source |
Sanz-Martin , M , Vernet , M , Cape , M R , Mesa , E , Delgado-Huertas , A , Reigstad , M , Wassmann , P & Duarte , C M 2019 , ' Relationship Between Carbon- and Oxygen-Based Primary Productivity in the Arctic Ocean, Svalbard Archipelago ' , Frontiers in Marine Science , vol. 6 , no. JUL , 468 . https://doi.org/10.3389/fmars.2019.00468 |
op_relation |
https://pure.au.dk/portal/da/publications/relationship-between-carbon-and-oxygenbased-primary-productivity-in-the-arctic-ocean-svalbard-archipelago(aeedc50d-922c-4f8f-8125-dbf71d67db60).html |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3389/fmars.2019.00468 |
container_title |
Frontiers in Marine Science |
container_volume |
6 |
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1786172425883353088 |