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 (CO2), 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...
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2018
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ftunivbergen:oai:bora.uib.no:1956/19153 2023-05-15T15:02:22+02:00 Temporal biomass dynamics of an Arctic plankton bloom in response to increasing levels of atmospheric carbon dioxide Schulz, Kai G. Bellerby, Richard Brussaard, Corina P.D. Büdenbender, Jan Czerny, Jan Engel, Anja Fischer, Matthias Koch-Klavsen, Signe Krug, Sebastian A. Lischka, Silke Ludwig, Andrea Meyerhöfer, Michael Nondal, Gisle Silyakova, Anna Stuhr, Annegret Riebesell, Ulf 2018-07-02T12:19:24Z application/pdf https://hdl.handle.net/1956/19153 https://doi.org/10.5194/bg-10-161-2013 eng eng European Geosciences Union urn:issn:1726-4170 urn:issn:1726-4189 https://hdl.handle.net/1956/19153 https://doi.org/10.5194/bg-10-161-2013 cristin:1032125 Attribution CC BY http://creativecommons.org/licenses/by/3.0 Copyright 2013 The Authors Biogeosciences VDP::Matematikk og naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Mathematics and natural scienses: 400::Zoology and botany: 480::Ecology: 488 Peer reviewed Journal article 2018 ftunivbergen https://doi.org/10.5194/bg-10-161-2013 2023-03-14T17:41:21Z Ocean acidification and carbonation, driven by anthropogenic emissions of carbon dioxide (CO2), 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 CO2 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 CO2 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 CO2 during the second phase, right after dissolved inorganic nutrient addition. This trend then reversed in the third phase. There were several statistically significant CO2 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, CO2 effects developed slowly but steadily, becoming more and more statistically significant with time. The observed CO2-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 CO2. publishedVersion Article in Journal/Newspaper Arctic Kongsfjord* Kongsfjorden Ocean acidification Phytoplankton Spitsbergen University of Bergen: Bergen Open Research Archive (BORA-UiB) Arctic Norway Biogeosciences 10 1 161 180 |
institution |
Open Polar |
collection |
University of Bergen: Bergen Open Research Archive (BORA-UiB) |
op_collection_id |
ftunivbergen |
language |
English |
topic |
VDP::Matematikk og naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Mathematics and natural scienses: 400::Zoology and botany: 480::Ecology: 488 |
spellingShingle |
VDP::Matematikk og naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Mathematics and natural scienses: 400::Zoology and botany: 480::Ecology: 488 Schulz, Kai G. Bellerby, Richard Brussaard, Corina P.D. Büdenbender, Jan Czerny, Jan Engel, Anja Fischer, Matthias Koch-Klavsen, Signe Krug, Sebastian A. Lischka, Silke Ludwig, Andrea Meyerhöfer, Michael Nondal, Gisle Silyakova, Anna Stuhr, Annegret Riebesell, Ulf Temporal biomass dynamics of an Arctic plankton bloom in response to increasing levels of atmospheric carbon dioxide |
topic_facet |
VDP::Matematikk og naturvitenskap: 400::Zoologiske og botaniske fag: 480::Økologi: 488 VDP::Mathematics and natural scienses: 400::Zoology and botany: 480::Ecology: 488 |
description |
Ocean acidification and carbonation, driven by anthropogenic emissions of carbon dioxide (CO2), 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 CO2 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 CO2 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 CO2 during the second phase, right after dissolved inorganic nutrient addition. This trend then reversed in the third phase. There were several statistically significant CO2 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, CO2 effects developed slowly but steadily, becoming more and more statistically significant with time. The observed CO2-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 CO2. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Schulz, Kai G. Bellerby, Richard Brussaard, Corina P.D. Büdenbender, Jan Czerny, Jan Engel, Anja Fischer, Matthias Koch-Klavsen, Signe Krug, Sebastian A. Lischka, Silke Ludwig, Andrea Meyerhöfer, Michael Nondal, Gisle Silyakova, Anna Stuhr, Annegret Riebesell, Ulf |
author_facet |
Schulz, Kai G. Bellerby, Richard Brussaard, Corina P.D. Büdenbender, Jan Czerny, Jan Engel, Anja Fischer, Matthias Koch-Klavsen, Signe Krug, Sebastian A. Lischka, Silke Ludwig, Andrea Meyerhöfer, Michael Nondal, Gisle Silyakova, Anna Stuhr, Annegret Riebesell, Ulf |
author_sort |
Schulz, Kai G. |
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 |
European Geosciences Union |
publishDate |
2018 |
url |
https://hdl.handle.net/1956/19153 https://doi.org/10.5194/bg-10-161-2013 |
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 |
op_relation |
urn:issn:1726-4170 urn:issn:1726-4189 https://hdl.handle.net/1956/19153 https://doi.org/10.5194/bg-10-161-2013 cristin:1032125 |
op_rights |
Attribution CC BY http://creativecommons.org/licenses/by/3.0 Copyright 2013 The Authors |
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 |
_version_ |
1766334330440777728 |