Articles | Volume 15, issue 22
Biogeosciences, 15, 6997–7024, 2018
https://doi.org/10.5194/bg-15-6997-2018
Biogeosciences, 15, 6997–7024, 2018
https://doi.org/10.5194/bg-15-6997-2018

Research article 22 Nov 2018

Research article | 22 Nov 2018

Factors controlling coccolithophore biogeography in the Southern Ocean

Cara Nissen et al.

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ROMS-BEC model data: Factors controlling coccolithophore biogeography in the Southern Ocean C. Nissen, M. Vogt, N. Gruber, M. M\"{u}nnich, and F. A. Haumann https://doi.org/10.3929/ethz-b-000304530

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Short summary
Using a regional ocean model, we find that coccolithophore biomass in the Southern Ocean is highest in the subantarctic in late summer when diatom growth becomes limited by silicate. We show that zooplankton grazing is crucial to explain phytoplankton biomass distributions in this area and conclude that assessments of future distributions should not only consider physical and chemical factors (temperature, light, nutrients, pH), but also interactions with other phytoplankton or zooplankton.
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