Relationship Between Carbon- and Oxygen-Based Primary Productivity in the Arctic Ocean, Svalbard Archipelago

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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.

I: Frontiers in Marine Science, Bind 6, 468, 08.2019.

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avisTidsskriftartikelForskningpeer review

Harvard

Sanz-Martin, M, Vernet, M, Cape, MR, Mesa, E, Delgado-Huertas, A, Reigstad, M, Wassmann, P & Duarte, CM 2019, 'Relationship Between Carbon- and Oxygen-Based Primary Productivity in the Arctic Ocean, Svalbard Archipelago', Frontiers in Marine Science, bind 6, 468. https://doi.org/10.3389/fmars.2019.00468

APA

Sanz-Martin, M., Vernet, M., Cape, M. R., Mesa, E., Delgado-Huertas, A., Reigstad, M., ... Duarte, C. M. (2019). Relationship Between Carbon- and Oxygen-Based Primary Productivity in the Arctic Ocean, Svalbard Archipelago. Frontiers in Marine Science, 6, [468]. https://doi.org/10.3389/fmars.2019.00468

CBE

Sanz-Martin M, Vernet M, Cape MR, Mesa E, Delgado-Huertas A, Reigstad M, Wassmann P, Duarte CM. 2019. Relationship Between Carbon- and Oxygen-Based Primary Productivity in the Arctic Ocean, Svalbard Archipelago. Frontiers in Marine Science. 6. https://doi.org/10.3389/fmars.2019.00468

MLA

Vancouver

Sanz-Martin M, Vernet M, Cape MR, Mesa E, Delgado-Huertas A, Reigstad M o.a. Relationship Between Carbon- and Oxygen-Based Primary Productivity in the Arctic Ocean, Svalbard Archipelago. Frontiers in Marine Science. 2019 aug;6. 468. https://doi.org/10.3389/fmars.2019.00468

Author

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. I: Frontiers in Marine Science. 2019 ; Bind 6.

Bibtex

@article{aeedc50d922c4f8f8125dbf71d67db60,
title = "Relationship Between Carbon- and Oxygen-Based Primary Productivity in the Arctic Ocean, Svalbard Archipelago",
abstract = "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 for other regions of the world's ocean. However, the median O:C ratio for August is",
keywords = "primary production, Arctic Ocean, oxygen method, carbon methodology, Svalbard (Arctic) and plankton, PLANKTONIC PRIMARY PRODUCTION, NET COMMUNITY PRODUCTION, DISSOLVED-OXYGEN, IN-VITRO, COASTAL WATERS, PHYTOPLANKTON, RESPIRATION, GROSS, C-14, O-18",
author = "Marina Sanz-Martin and Maria Vernet and Cape, {Mattias R.} and Elena Mesa and Antonio Delgado-Huertas and Marit Reigstad and Paul Wassmann and Duarte, {Carlos M.}",
year = "2019",
month = "8",
doi = "10.3389/fmars.2019.00468",
language = "English",
volume = "6",
journal = "Frontiers in Marine Science",
issn = "2296-7745",
publisher = "Frontiers Media S.A.",

}

RIS

TY - JOUR

T1 - Relationship Between Carbon- and Oxygen-Based Primary Productivity in the Arctic Ocean, Svalbard Archipelago

AU - Sanz-Martin, Marina

AU - Vernet, Maria

AU - Cape, Mattias R.

AU - Mesa, Elena

AU - Delgado-Huertas, Antonio

AU - Reigstad, Marit

AU - Wassmann, Paul

AU - Duarte, Carlos M.

PY - 2019/8

Y1 - 2019/8

N2 - 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 for other regions of the world's ocean. However, the median O:C ratio for August is

AB - 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 for other regions of the world's ocean. However, the median O:C ratio for August is

KW - primary production

KW - Arctic Ocean

KW - oxygen method

KW - carbon methodology

KW - Svalbard (Arctic) and plankton

KW - PLANKTONIC PRIMARY PRODUCTION

KW - NET COMMUNITY PRODUCTION

KW - DISSOLVED-OXYGEN

KW - IN-VITRO

KW - COASTAL WATERS

KW - PHYTOPLANKTON

KW - RESPIRATION

KW - GROSS

KW - C-14

KW - O-18

U2 - 10.3389/fmars.2019.00468

DO - 10.3389/fmars.2019.00468

M3 - Journal article

VL - 6

JO - Frontiers in Marine Science

JF - Frontiers in Marine Science

SN - 2296-7745

M1 - 468

ER -