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Adaptation of a globally important coccolithophore to ocean warming and acidification.
Schlüter, Lothar, Lohbeck, Kai T., Gutowska, Magdalena A., Gröger, Joachim P., Riebesell, Ulf and Reusch, Thorsten B.H.
(2014)
Adaptation of a globally important coccolithophore to ocean warming and acidification.
Nature Climate Change, 4
(11).
pp. 1024-1030.
DOI 10.1038/NCLIMATE2379.
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Abstract
Although ocean warming and acidification are recognized as two major anthropogenic perturbations of today’s oceans we know very little about how marine phytoplankton may respond via evolutionary change. We tested for adaptation to ocean warming in combination with ocean acidification in the globally important phytoplankton species Emiliania huxleyi. Temperature adaptation occurred independently of ocean acidification levels. Growth rates were up to 16% higher in populations adapted for one year to warming when assayed at their upper thermal tolerance limit. Particulate inorganic (PIC) and organic (POC) carbon production was restored to values under present-day ocean conditions, owing to adaptive evolution, and were 101% and 55% higher under combined warming and acidification, respectively, than in non-adapted controls. Cells also evolved to a smaller size while they recovered their initial PIC:POC ratio even under elevated CO2. The observed changes in coccolithophore growth, calcite and biomass production, cell size and elemental composition demonstrate the importance of evolutionary processes for phytoplankton performance in a future ocean.
Document Type: | Article |
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Additional Information: | WOS:000344598400028 |
Keywords: | MARINE-PHYTOPLANKTON; EXPERIMENTAL EVOLUTION; GEPHYROCAPSA-OCEANICA; ADAPTIVE EVOLUTION; EMILIANIA-HUXLEYI; CARBON FLUXES; TEMPERATURE; CO2; SENSITIVITIES; VARIABILITY |
Research affiliation: | OceanRep > GEOMAR > FB3 Marine Ecology > FB3-EV Marine Evolutionary Ecology Kiel University OceanRep > The Future Ocean - Cluster of Excellence OceanRep > GEOMAR > FB2 Marine Biogeochemistry > FB2-BI Biological Oceanography |
Refereed: | Yes |
Open Access Journal?: | No |
Publisher: | Nature Publishing Group |
Projects: | BIOACID, Future Ocean |
Date Deposited: | 05 Sep 2014 08:45 |
Last Modified: | 23 Sep 2019 20:04 |
URI: | https://oceanrep.geomar.de/id/eprint/25582 |
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