Articles | Volume 13, issue 14
Biogeosciences, 13, 4111–4133, 2016
https://doi.org/10.5194/bg-13-4111-2016
Biogeosciences, 13, 4111–4133, 2016
https://doi.org/10.5194/bg-13-4111-2016
Research article
18 Jul 2016
Research article | 18 Jul 2016

Role of zooplankton dynamics for Southern Ocean phytoplankton biomass and global biogeochemical cycles

Corinne Le Quéré et al.

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We present a global biogeochemical model which incorporates ecosystem dynamics based on the representation of ten plankton functional types, and use the model to assess the relative roles of iron vs. grazing in determining phytoplankton biomass in the Southern Ocean. Our results suggest that observed low phytoplankton biomass in the Southern Ocean during summer is primarily explained by the dynamics of the Southern Ocean zooplankton community, despite iron limitation of phytoplankton growth.
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