The Arctic picoeukaryote Micromonas pusilla benefits synergistically from warming and ocean acidification
In the Arctic Ocean, climate change effects such as warming and ocean acidification (OA) are manifesting faster than in other regions. Yet, we are lacking a mechanistic understanding of the interactive effects of these drivers on Arctic primary producers. In the current study, one of the most abunda...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00005259 2023-05-15T14:42:06+02:00 The Arctic picoeukaryote Micromonas pusilla benefits synergistically from warming and ocean acidification Hoppe, Clara Jule Marie Flintrop, Clara M. Rost, Björn 2018-07 electronic https://doi.org/10.5194/bg-15-4353-2018 https://noa.gwlb.de/receive/cop_mods_00005259 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00005216/bg-15-4353-2018.pdf https://bg.copernicus.org/articles/15/4353/2018/bg-15-4353-2018.pdf eng eng Copernicus Publications Biogeosciences -- http://www.bibliothek.uni-regensburg.de/ezeit/?2158181 -- http://www.copernicus.org/EGU/bg/bg.html -- 1726-4189 https://doi.org/10.5194/bg-15-4353-2018 https://noa.gwlb.de/receive/cop_mods_00005259 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00005216/bg-15-4353-2018.pdf https://bg.copernicus.org/articles/15/4353/2018/bg-15-4353-2018.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2018 ftnonlinearchiv https://doi.org/10.5194/bg-15-4353-2018 2022-02-08T22:59:42Z In the Arctic Ocean, climate change effects such as warming and ocean acidification (OA) are manifesting faster than in other regions. Yet, we are lacking a mechanistic understanding of the interactive effects of these drivers on Arctic primary producers. In the current study, one of the most abundant species of the Arctic Ocean, the prasinophyte Micromonas pusilla, was exposed to a range of different pCO2 levels at two temperatures representing realistic current and future scenarios for nutrient-replete conditions. We observed that warming and OA synergistically increased growth rates at intermediate to high pCO2 levels. Furthermore, elevated temperatures shifted the pCO2 optimum of biomass production to higher levels. Based on changes in cellular composition and photophysiology, we hypothesise that the observed synergies can be explained by beneficial effects of warming on carbon fixation in combination with facilitated carbon acquisition under OA. Our findings help to understand the higher abundances of picoeukaryotes such as M. pusilla under OA, as has been observed in many mesocosm studies. Article in Journal/Newspaper Arctic Arctic Ocean Climate change Ocean acidification Niedersächsisches Online-Archiv NOA Arctic Arctic Ocean Biogeosciences 15 14 4353 4365 |
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English |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Hoppe, Clara Jule Marie Flintrop, Clara M. Rost, Björn The Arctic picoeukaryote Micromonas pusilla benefits synergistically from warming and ocean acidification |
topic_facet |
article Verlagsveröffentlichung |
description |
In the Arctic Ocean, climate change effects such as warming and ocean acidification (OA) are manifesting faster than in other regions. Yet, we are lacking a mechanistic understanding of the interactive effects of these drivers on Arctic primary producers. In the current study, one of the most abundant species of the Arctic Ocean, the prasinophyte Micromonas pusilla, was exposed to a range of different pCO2 levels at two temperatures representing realistic current and future scenarios for nutrient-replete conditions. We observed that warming and OA synergistically increased growth rates at intermediate to high pCO2 levels. Furthermore, elevated temperatures shifted the pCO2 optimum of biomass production to higher levels. Based on changes in cellular composition and photophysiology, we hypothesise that the observed synergies can be explained by beneficial effects of warming on carbon fixation in combination with facilitated carbon acquisition under OA. Our findings help to understand the higher abundances of picoeukaryotes such as M. pusilla under OA, as has been observed in many mesocosm studies. |
format |
Article in Journal/Newspaper |
author |
Hoppe, Clara Jule Marie Flintrop, Clara M. Rost, Björn |
author_facet |
Hoppe, Clara Jule Marie Flintrop, Clara M. Rost, Björn |
author_sort |
Hoppe, Clara Jule Marie |
title |
The Arctic picoeukaryote Micromonas pusilla benefits synergistically from warming and ocean acidification |
title_short |
The Arctic picoeukaryote Micromonas pusilla benefits synergistically from warming and ocean acidification |
title_full |
The Arctic picoeukaryote Micromonas pusilla benefits synergistically from warming and ocean acidification |
title_fullStr |
The Arctic picoeukaryote Micromonas pusilla benefits synergistically from warming and ocean acidification |
title_full_unstemmed |
The Arctic picoeukaryote Micromonas pusilla benefits synergistically from warming and ocean acidification |
title_sort |
arctic picoeukaryote micromonas pusilla benefits synergistically from warming and ocean acidification |
publisher |
Copernicus Publications |
publishDate |
2018 |
url |
https://doi.org/10.5194/bg-15-4353-2018 https://noa.gwlb.de/receive/cop_mods_00005259 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00005216/bg-15-4353-2018.pdf https://bg.copernicus.org/articles/15/4353/2018/bg-15-4353-2018.pdf |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Climate change Ocean acidification |
genre_facet |
Arctic Arctic Ocean Climate change Ocean acidification |
op_relation |
Biogeosciences -- http://www.bibliothek.uni-regensburg.de/ezeit/?2158181 -- http://www.copernicus.org/EGU/bg/bg.html -- 1726-4189 https://doi.org/10.5194/bg-15-4353-2018 https://noa.gwlb.de/receive/cop_mods_00005259 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00005216/bg-15-4353-2018.pdf https://bg.copernicus.org/articles/15/4353/2018/bg-15-4353-2018.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/bg-15-4353-2018 |
container_title |
Biogeosciences |
container_volume |
15 |
container_issue |
14 |
container_start_page |
4353 |
op_container_end_page |
4365 |
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1766313776837033984 |