Temporal biomass dynamics of an Arctic plankton bloom in response to increasing levels of atmospheric carbon dioxide
Ocean acidification and carbonation, driven by anthropogenic emissions of carbon dioxide (CO 2 ), have been shown to affect a variety of marine organisms and are likely to change ecosystem functioning. High latitudes, especially the Arctic, will be the first to encounter profound changes in carbonat...
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Online Access: | https://doi.org/10.5194/bg-10-161-2013 https://doaj.org/article/a85d5cce859e493ea32bba79143d29f1 |
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ftdoajarticles:oai:doaj.org/article:a85d5cce859e493ea32bba79143d29f1 2023-05-15T15:01:54+02:00 Temporal biomass dynamics of an Arctic plankton bloom in response to increasing levels of atmospheric carbon dioxide K. G. Schulz R. G. J. Bellerby C. P. D. Brussaard J. Büdenbender J. Czerny A. Engel M. Fischer S. Koch-Klavsen S. A. Krug S. Lischka A. Ludwig M. Meyerhöfer G. Nondal A. Silyakova A. Stuhr U. Riebesell 2013-01-01T00:00:00Z https://doi.org/10.5194/bg-10-161-2013 https://doaj.org/article/a85d5cce859e493ea32bba79143d29f1 EN eng Copernicus Publications http://www.biogeosciences.net/10/161/2013/bg-10-161-2013.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 doi:10.5194/bg-10-161-2013 1726-4170 1726-4189 https://doaj.org/article/a85d5cce859e493ea32bba79143d29f1 Biogeosciences, Vol 10, Iss 1, Pp 161-180 (2013) Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 article 2013 ftdoajarticles https://doi.org/10.5194/bg-10-161-2013 2022-12-31T03:46:37Z Ocean acidification and carbonation, driven by anthropogenic emissions of carbon dioxide (CO 2 ), have been shown to affect a variety of marine organisms and are likely to change ecosystem functioning. High latitudes, especially the Arctic, will be the first to encounter profound changes in carbonate chemistry speciation at a large scale, namely the under-saturation of surface waters with respect to aragonite, a calcium carbonate polymorph produced by several organisms in this region. During a CO 2 perturbation study in Kongsfjorden on the west coast of Spitsbergen (Norway), in the framework of the EU-funded project EPOCA, the temporal dynamics of a plankton bloom was followed in nine mesocosms, manipulated for CO 2 levels ranging initially from about 185 to 1420 μatm. Dissolved inorganic nutrients were added halfway through the experiment. Autotrophic biomass, as identified by chlorophyll a standing stocks (Chl a ), peaked three times in all mesocosms. However, while absolute Chl a concentrations were similar in all mesocosms during the first phase of the experiment, higher autotrophic biomass was measured as high in comparison to low CO 2 during the second phase, right after dissolved inorganic nutrient addition. This trend then reversed in the third phase. There were several statistically significant CO 2 effects on a variety of parameters measured in certain phases, such as nutrient utilization, standing stocks of particulate organic matter, and phytoplankton species composition. Interestingly, CO 2 effects developed slowly but steadily, becoming more and more statistically significant with time. The observed CO 2 -related shifts in nutrient flow into different phytoplankton groups (mainly dinoflagellates, prasinophytes and haptophytes) could have consequences for future organic matter flow to higher trophic levels and export production, with consequences for ecosystem productivity and atmospheric CO 2 . Article in Journal/Newspaper Arctic Kongsfjord* Kongsfjorden Ocean acidification Phytoplankton Spitsbergen Directory of Open Access Journals: DOAJ Articles Arctic Norway Biogeosciences 10 1 161 180 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
spellingShingle |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 K. G. Schulz R. G. J. Bellerby C. P. D. Brussaard J. Büdenbender J. Czerny A. Engel M. Fischer S. Koch-Klavsen S. A. Krug S. Lischka A. Ludwig M. Meyerhöfer G. Nondal A. Silyakova A. Stuhr U. Riebesell Temporal biomass dynamics of an Arctic plankton bloom in response to increasing levels of atmospheric carbon dioxide |
topic_facet |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
description |
Ocean acidification and carbonation, driven by anthropogenic emissions of carbon dioxide (CO 2 ), have been shown to affect a variety of marine organisms and are likely to change ecosystem functioning. High latitudes, especially the Arctic, will be the first to encounter profound changes in carbonate chemistry speciation at a large scale, namely the under-saturation of surface waters with respect to aragonite, a calcium carbonate polymorph produced by several organisms in this region. During a CO 2 perturbation study in Kongsfjorden on the west coast of Spitsbergen (Norway), in the framework of the EU-funded project EPOCA, the temporal dynamics of a plankton bloom was followed in nine mesocosms, manipulated for CO 2 levels ranging initially from about 185 to 1420 μatm. Dissolved inorganic nutrients were added halfway through the experiment. Autotrophic biomass, as identified by chlorophyll a standing stocks (Chl a ), peaked three times in all mesocosms. However, while absolute Chl a concentrations were similar in all mesocosms during the first phase of the experiment, higher autotrophic biomass was measured as high in comparison to low CO 2 during the second phase, right after dissolved inorganic nutrient addition. This trend then reversed in the third phase. There were several statistically significant CO 2 effects on a variety of parameters measured in certain phases, such as nutrient utilization, standing stocks of particulate organic matter, and phytoplankton species composition. Interestingly, CO 2 effects developed slowly but steadily, becoming more and more statistically significant with time. The observed CO 2 -related shifts in nutrient flow into different phytoplankton groups (mainly dinoflagellates, prasinophytes and haptophytes) could have consequences for future organic matter flow to higher trophic levels and export production, with consequences for ecosystem productivity and atmospheric CO 2 . |
format |
Article in Journal/Newspaper |
author |
K. G. Schulz R. G. J. Bellerby C. P. D. Brussaard J. Büdenbender J. Czerny A. Engel M. Fischer S. Koch-Klavsen S. A. Krug S. Lischka A. Ludwig M. Meyerhöfer G. Nondal A. Silyakova A. Stuhr U. Riebesell |
author_facet |
K. G. Schulz R. G. J. Bellerby C. P. D. Brussaard J. Büdenbender J. Czerny A. Engel M. Fischer S. Koch-Klavsen S. A. Krug S. Lischka A. Ludwig M. Meyerhöfer G. Nondal A. Silyakova A. Stuhr U. Riebesell |
author_sort |
K. G. Schulz |
title |
Temporal biomass dynamics of an Arctic plankton bloom in response to increasing levels of atmospheric carbon dioxide |
title_short |
Temporal biomass dynamics of an Arctic plankton bloom in response to increasing levels of atmospheric carbon dioxide |
title_full |
Temporal biomass dynamics of an Arctic plankton bloom in response to increasing levels of atmospheric carbon dioxide |
title_fullStr |
Temporal biomass dynamics of an Arctic plankton bloom in response to increasing levels of atmospheric carbon dioxide |
title_full_unstemmed |
Temporal biomass dynamics of an Arctic plankton bloom in response to increasing levels of atmospheric carbon dioxide |
title_sort |
temporal biomass dynamics of an arctic plankton bloom in response to increasing levels of atmospheric carbon dioxide |
publisher |
Copernicus Publications |
publishDate |
2013 |
url |
https://doi.org/10.5194/bg-10-161-2013 https://doaj.org/article/a85d5cce859e493ea32bba79143d29f1 |
geographic |
Arctic Norway |
geographic_facet |
Arctic Norway |
genre |
Arctic Kongsfjord* Kongsfjorden Ocean acidification Phytoplankton Spitsbergen |
genre_facet |
Arctic Kongsfjord* Kongsfjorden Ocean acidification Phytoplankton Spitsbergen |
op_source |
Biogeosciences, Vol 10, Iss 1, Pp 161-180 (2013) |
op_relation |
http://www.biogeosciences.net/10/161/2013/bg-10-161-2013.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 doi:10.5194/bg-10-161-2013 1726-4170 1726-4189 https://doaj.org/article/a85d5cce859e493ea32bba79143d29f1 |
op_doi |
https://doi.org/10.5194/bg-10-161-2013 |
container_title |
Biogeosciences |
container_volume |
10 |
container_issue |
1 |
container_start_page |
161 |
op_container_end_page |
180 |
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1766333898329948160 |