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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Online Access: | https://epic.awi.de/id/eprint/47656/ https://epic.awi.de/id/eprint/47656/1/Hoppe_etal_2018_BG.pdf https://doi.org/10.5194/bg-15-4353-2018 https://hdl.handle.net/10013/epic.81eccb23-f818-45fe-887e-3815d84d721f https://hdl.handle.net/ |
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ftawi:oai:epic.awi.de:47656 2023-05-15T14:27:25+02:00 The Arctic picoeukaryote Micromonas pusilla benefits synergistically from warming and ocean acidification Hoppe, Clara Jule Marie Flintrop, Clara M. Rost, Björn 2018-07-18 application/pdf https://epic.awi.de/id/eprint/47656/ https://epic.awi.de/id/eprint/47656/1/Hoppe_etal_2018_BG.pdf https://doi.org/10.5194/bg-15-4353-2018 https://hdl.handle.net/10013/epic.81eccb23-f818-45fe-887e-3815d84d721f https://hdl.handle.net/ unknown https://epic.awi.de/id/eprint/47656/1/Hoppe_etal_2018_BG.pdf https://hdl.handle.net/ Hoppe, C. J. M. orcid:0000-0002-2509-0546 , Flintrop, C. M. and Rost, B. orcid:0000-0001-5452-5505 (2018) The Arctic picoeukaryote Micromonas pusilla benefits synergistically from warming and ocean acidification , Biogeosciences, 15 (14), pp. 4353-4365 . doi:10.5194/bg-15-4353-2018 <https://doi.org/10.5194/bg-15-4353-2018> , hdl:10013/epic.81eccb23-f818-45fe-887e-3815d84d721f EPIC3Biogeosciences, 15(14), pp. 4353-4365, ISSN: 1726-4189 Article isiRev 2018 ftawi https://doi.org/10.5194/bg-15-4353-2018 2021-12-24T15:44:00Z 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 Arctic Ocean Climate change Ocean acidification Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Arctic Ocean Biogeosciences 15 14 4353 4365 |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
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ftawi |
language |
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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 |
spellingShingle |
Hoppe, Clara Jule Marie Flintrop, Clara M. Rost, Björn The Arctic picoeukaryote Micromonas pusilla benefits synergistically from warming and ocean acidification |
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 |
publishDate |
2018 |
url |
https://epic.awi.de/id/eprint/47656/ https://epic.awi.de/id/eprint/47656/1/Hoppe_etal_2018_BG.pdf https://doi.org/10.5194/bg-15-4353-2018 https://hdl.handle.net/10013/epic.81eccb23-f818-45fe-887e-3815d84d721f https://hdl.handle.net/ |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Arctic Ocean Climate change Ocean acidification |
genre_facet |
Arctic Arctic Arctic Ocean Climate change Ocean acidification |
op_source |
EPIC3Biogeosciences, 15(14), pp. 4353-4365, ISSN: 1726-4189 |
op_relation |
https://epic.awi.de/id/eprint/47656/1/Hoppe_etal_2018_BG.pdf https://hdl.handle.net/ Hoppe, C. J. M. orcid:0000-0002-2509-0546 , Flintrop, C. M. and Rost, B. orcid:0000-0001-5452-5505 (2018) The Arctic picoeukaryote Micromonas pusilla benefits synergistically from warming and ocean acidification , Biogeosciences, 15 (14), pp. 4353-4365 . doi:10.5194/bg-15-4353-2018 <https://doi.org/10.5194/bg-15-4353-2018> , hdl:10013/epic.81eccb23-f818-45fe-887e-3815d84d721f |
op_doi |
https://doi.org/10.5194/bg-15-4353-2018 |
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Biogeosciences |
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15 |
container_issue |
14 |
container_start_page |
4353 |
op_container_end_page |
4365 |
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