The Arctic picoeukaryote Micromonas pusilla benefits from Ocean Acidification under constant and dynamic light ...
Compared to the rest of the globe, the Arctic Ocean is affected disproportionately by climate change. Despite these fast environmental changes, we currently know little about the effects of ocean acidification (OA) on marine key species in this area. Moreover, the existing studies typically test the...
| Main Authors: | , , |
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| Format: | Article in Journal/Newspaper |
| Language: | English |
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PANGAEA
2019
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.1594/pangaea.908691 https://doi.pangaea.de/10.1594/PANGAEA.908691 |
| Summary: | Compared to the rest of the globe, the Arctic Ocean is affected disproportionately by climate change. Despite these fast environmental changes, we currently know little about the effects of ocean acidification (OA) on marine key species in this area. Moreover, the existing studies typically test the effects of OA under constant, hence artificial light fields. In this study, the abundant Arctic picoeukaryote Micromonas pusilla was acclimated to current (400 μatm) and future (900 μatm) pCO2 levels under a constant as well as dynamic light, simulating more realistic light fields as experienced in the upper mixed layer. To describe and understand the responses to these drivers, growth, particulate organic carbon (POC) production, elemental composition, photophysiology and reactive oxygen species (ROS) production were analysed. M. pusilla was able to benefit from OA on various scales, ranging from an increase in growth rates to enhanced photosynthetic capacity, irrespective of the light regime. These beneficial ... : Supplement to: White, Emily; Hoppe, Clara Jule Marie; Rost, Björn (2020): The Arctic picoeukaryote Micromonas pusilla benefits from ocean acidification under constant and dynamic light. Biogeosciences, 17(3), 635-647 ... |
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