Why marine phytoplankton calcify

Monteiro, Fanny M., Bach, Lennart T., Brownlee, Colin, Bown, Paul, Rickaby, Rosalind E. M., Poulton, Alex J., Tyrrell, Toby, Beaufort, Luc, Dutkiewicz, Stephanie, Gibbs, Samantha, Gutowska, Magdalena A., Lee, Renee, Riebesell, Ulf, Young, Jeremy and Ridgwell, Andy (2016) Why marine phytoplankton calcify Science Advances, 2 (7). e1501822-e1501822. DOI 10.1126/sciadv.1501822.

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Abstract

Calcifying marine phytoplankton - coccolithophores — are some of the most successful yet enigmatic organisms in the ocean and are at risk from global change. To better understand how they will be affected, we need to know “why” coccolithophores calcify. We review coccolithophorid evolutionary history and cell biology as well as insights from recent experiments to provide a critical assessment of the costs and benefits of calcification. We conclude that calcification has high energy demands and that coccolithophores might have calcified initially to reduce grazing pressure but that additional benefits such as protection from photodamage and viral/bacterial attack further explain their high diversity and broad spectrum ecology. The cost-benefit aspect of these traits is illustrated by novel ecosystem modeling, although conclusive observations remain limited. In the future ocean, the trade-off between changing ecological and physiological costs of calcification and their benefits will ultimately decide how this important group is affected by ocean acidification and global warming

Document Type: Article
Research affiliation: OceanRep > GEOMAR > FB2 Marine Biogeochemistry > FB2-BI Biological Oceanography
Kiel University
Refereed: Yes
Open Access Journal?: Yes
DOI etc.: 10.1126/sciadv.1501822
ISSN: 2375-2548
Projects: BIOACID
Date Deposited: 08 Dec 2016 10:04
Last Modified: 04 May 2017 11:35
URI: http://oceanrep.geomar.de/id/eprint/35123

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