High plasticity in inorganic carbon uptake by Southern Ocean phytoplankton in response to ambient CO 2
The fixation of dissolved inorganic carbon (DIC) by marine phytoplankton provides an important feedback mechanism on concentrations of CO2 in the atmosphere. As a consequence it is important to determine whether oceanic primary productivity is susceptible to changing atmospheric CO2 levels. Among nu...
Published in: | Deep Sea Research Part II: Topical Studies in Oceanography |
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Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2011
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Online Access: | https://hdl.handle.net/11370/74b3cc87-baaf-449e-92cc-34e4915bb8d0 https://research.rug.nl/en/publications/74b3cc87-baaf-449e-92cc-34e4915bb8d0 https://doi.org/10.1016/j.dsr2.2011.03.006 https://pure.rug.nl/ws/files/6770267/2011DeepSeaRes2Neven.pdf |
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ftunigroningenpu:oai:pure.rug.nl:publications/74b3cc87-baaf-449e-92cc-34e4915bb8d0 2024-06-02T08:14:44+00:00 High plasticity in inorganic carbon uptake by Southern Ocean phytoplankton in response to ambient CO 2 Neven, Ika A. Stefels, Jacqueline van Heuven, Steven M. A. C. de Baar, Hein J. W. Elzenga, J. Theo M. 2011-12-15 application/pdf https://hdl.handle.net/11370/74b3cc87-baaf-449e-92cc-34e4915bb8d0 https://research.rug.nl/en/publications/74b3cc87-baaf-449e-92cc-34e4915bb8d0 https://doi.org/10.1016/j.dsr2.2011.03.006 https://pure.rug.nl/ws/files/6770267/2011DeepSeaRes2Neven.pdf eng eng https://research.rug.nl/en/publications/74b3cc87-baaf-449e-92cc-34e4915bb8d0 info:eu-repo/semantics/openAccess Neven , I A , Stefels , J , van Heuven , S M A C , de Baar , H J W & Elzenga , J T M 2011 , ' High plasticity in inorganic carbon uptake by Southern Ocean phytoplankton in response to ambient CO 2 ' , Deep-Sea research part ii-Topical studies in oceanography , vol. 58 , no. 25-26 , pp. 2636-2646 . https://doi.org/10.1016/j.dsr2.2011.03.006 Carbon sink CO2 concentrating mechanism HCO3- Carbonic anhydrase Isotope disequilibrium technique Weddell Sea ISOTOPIC DISEQUILIBRIUM TECHNIQUE MARINE-PHYTOPLANKTON IRON LIMITATION CO2-CONCENTRATING MECHANISMS CONCENTRATING MECHANISMS ENRICHMENT EXPERIMENTS BICARBONATE TRANSPORT LIGHT AVAILABILITY ANHYDRASE ACTIVITY GROWTH-RATES article 2011 ftunigroningenpu https://doi.org/10.1016/j.dsr2.2011.03.006 2024-05-07T18:51:18Z The fixation of dissolved inorganic carbon (DIC) by marine phytoplankton provides an important feedback mechanism on concentrations of CO2 in the atmosphere. As a consequence it is important to determine whether oceanic primary productivity is susceptible to changing atmospheric CO2 levels. Among numerous other factors, the acquisition of DIC by microalgae particularly in the polar seas is projected to have a significant effect on future phytoplanktonic production and hence atmospheric CO2 concentrations. Using the isotopic disequilibrium technique the contribution of different carbon species (CO2 and bicarbonate) to the overall DIC uptake and the extent to which external Carbonic Anhydrase (eCA) plays a role in facilitating DIC uptake was estimated. Simultaneous uptake of CO2 and HCO3- was observed in all cases, but the proportions in which different DIC species contributed to carbon assimilation varied considerably between stations. Bicarbonate as well as CO2 could be the major DIC source for local phytoplankton assemblages. There was a positive correlation between the contribution of CO2 to total DIC uptake and ambient concentration of CO2 in seawater suggesting that Southern Ocean microalgae could increase the proportion of CO2 uptake under future high atmospheric CO2 levels. Results will be discussed in view of metabolic costs related to DIC acquisition of Southern Ocean phytoplankton. (C) 2011 Elsevier Ltd. All rights reserved. Article in Journal/Newspaper Southern Ocean Weddell Sea University of Groningen research database Southern Ocean Weddell Weddell Sea Deep Sea Research Part II: Topical Studies in Oceanography 58 25-26 2636 2646 |
institution |
Open Polar |
collection |
University of Groningen research database |
op_collection_id |
ftunigroningenpu |
language |
English |
topic |
Carbon sink CO2 concentrating mechanism HCO3- Carbonic anhydrase Isotope disequilibrium technique Weddell Sea ISOTOPIC DISEQUILIBRIUM TECHNIQUE MARINE-PHYTOPLANKTON IRON LIMITATION CO2-CONCENTRATING MECHANISMS CONCENTRATING MECHANISMS ENRICHMENT EXPERIMENTS BICARBONATE TRANSPORT LIGHT AVAILABILITY ANHYDRASE ACTIVITY GROWTH-RATES |
spellingShingle |
Carbon sink CO2 concentrating mechanism HCO3- Carbonic anhydrase Isotope disequilibrium technique Weddell Sea ISOTOPIC DISEQUILIBRIUM TECHNIQUE MARINE-PHYTOPLANKTON IRON LIMITATION CO2-CONCENTRATING MECHANISMS CONCENTRATING MECHANISMS ENRICHMENT EXPERIMENTS BICARBONATE TRANSPORT LIGHT AVAILABILITY ANHYDRASE ACTIVITY GROWTH-RATES Neven, Ika A. Stefels, Jacqueline van Heuven, Steven M. A. C. de Baar, Hein J. W. Elzenga, J. Theo M. High plasticity in inorganic carbon uptake by Southern Ocean phytoplankton in response to ambient CO 2 |
topic_facet |
Carbon sink CO2 concentrating mechanism HCO3- Carbonic anhydrase Isotope disequilibrium technique Weddell Sea ISOTOPIC DISEQUILIBRIUM TECHNIQUE MARINE-PHYTOPLANKTON IRON LIMITATION CO2-CONCENTRATING MECHANISMS CONCENTRATING MECHANISMS ENRICHMENT EXPERIMENTS BICARBONATE TRANSPORT LIGHT AVAILABILITY ANHYDRASE ACTIVITY GROWTH-RATES |
description |
The fixation of dissolved inorganic carbon (DIC) by marine phytoplankton provides an important feedback mechanism on concentrations of CO2 in the atmosphere. As a consequence it is important to determine whether oceanic primary productivity is susceptible to changing atmospheric CO2 levels. Among numerous other factors, the acquisition of DIC by microalgae particularly in the polar seas is projected to have a significant effect on future phytoplanktonic production and hence atmospheric CO2 concentrations. Using the isotopic disequilibrium technique the contribution of different carbon species (CO2 and bicarbonate) to the overall DIC uptake and the extent to which external Carbonic Anhydrase (eCA) plays a role in facilitating DIC uptake was estimated. Simultaneous uptake of CO2 and HCO3- was observed in all cases, but the proportions in which different DIC species contributed to carbon assimilation varied considerably between stations. Bicarbonate as well as CO2 could be the major DIC source for local phytoplankton assemblages. There was a positive correlation between the contribution of CO2 to total DIC uptake and ambient concentration of CO2 in seawater suggesting that Southern Ocean microalgae could increase the proportion of CO2 uptake under future high atmospheric CO2 levels. Results will be discussed in view of metabolic costs related to DIC acquisition of Southern Ocean phytoplankton. (C) 2011 Elsevier Ltd. All rights reserved. |
format |
Article in Journal/Newspaper |
author |
Neven, Ika A. Stefels, Jacqueline van Heuven, Steven M. A. C. de Baar, Hein J. W. Elzenga, J. Theo M. |
author_facet |
Neven, Ika A. Stefels, Jacqueline van Heuven, Steven M. A. C. de Baar, Hein J. W. Elzenga, J. Theo M. |
author_sort |
Neven, Ika A. |
title |
High plasticity in inorganic carbon uptake by Southern Ocean phytoplankton in response to ambient CO 2 |
title_short |
High plasticity in inorganic carbon uptake by Southern Ocean phytoplankton in response to ambient CO 2 |
title_full |
High plasticity in inorganic carbon uptake by Southern Ocean phytoplankton in response to ambient CO 2 |
title_fullStr |
High plasticity in inorganic carbon uptake by Southern Ocean phytoplankton in response to ambient CO 2 |
title_full_unstemmed |
High plasticity in inorganic carbon uptake by Southern Ocean phytoplankton in response to ambient CO 2 |
title_sort |
high plasticity in inorganic carbon uptake by southern ocean phytoplankton in response to ambient co 2 |
publishDate |
2011 |
url |
https://hdl.handle.net/11370/74b3cc87-baaf-449e-92cc-34e4915bb8d0 https://research.rug.nl/en/publications/74b3cc87-baaf-449e-92cc-34e4915bb8d0 https://doi.org/10.1016/j.dsr2.2011.03.006 https://pure.rug.nl/ws/files/6770267/2011DeepSeaRes2Neven.pdf |
geographic |
Southern Ocean Weddell Weddell Sea |
geographic_facet |
Southern Ocean Weddell Weddell Sea |
genre |
Southern Ocean Weddell Sea |
genre_facet |
Southern Ocean Weddell Sea |
op_source |
Neven , I A , Stefels , J , van Heuven , S M A C , de Baar , H J W & Elzenga , J T M 2011 , ' High plasticity in inorganic carbon uptake by Southern Ocean phytoplankton in response to ambient CO 2 ' , Deep-Sea research part ii-Topical studies in oceanography , vol. 58 , no. 25-26 , pp. 2636-2646 . https://doi.org/10.1016/j.dsr2.2011.03.006 |
op_relation |
https://research.rug.nl/en/publications/74b3cc87-baaf-449e-92cc-34e4915bb8d0 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.dsr2.2011.03.006 |
container_title |
Deep Sea Research Part II: Topical Studies in Oceanography |
container_volume |
58 |
container_issue |
25-26 |
container_start_page |
2636 |
op_container_end_page |
2646 |
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1800738708726480896 |