The Arctic picoeukaryote <i>Micromonas pusilla</i> benefits synergistically from warming and ocean acidification

Hoppe, Clara Jule Marie; Flintrop, Clara M.; Rost, Björn

doi:https://doi.org/10.5194/bg-15-4353-2018

Articles | Volume 15, issue 14

https://doi.org/10.5194/bg-15-4353-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-15-4353-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 15, issue 14

Research article

|

18 Jul 2018

Research article |

| 18 Jul 2018

The Arctic picoeukaryote Micromonas pusilla benefits synergistically from warming and ocean acidification

Clara Jule Marie Hoppe, Clara M. Flintrop, and Björn Rost

Supplement

https://doi.org/10.5194/bg-15-4353-2018-supplement

Data sets

Interactive effects of warming and ocean acidification on the Arctic picoeukaryote Micromonas pusilla C. J. M. Hoppe, C. Flintrop, and B. Rost https://doi.org/10.1594/PANGAEA.892370

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Responses of the Arctic microalgae Micromonas pusilla to different pCO₂ levels were investigated at two temperatures. We observed that warming and ocean acidification (OA) synergistically increased growth rates. Furthermore, elevated temperature shifted the pCO₂ optimum of biomass production to higher levels. This seem to be caused by more efficient photosynthesis under warmer and more acidic conditions. Our findings explain the dominance of picoeukaryotes frequently observed in OA experiments.