Response of the Southern Ocean global ecosystem to physical and trophic constraints

The ecosystem of the higher trophic levels (specific scales : Southern Ocean and century). It relates to the conceptualization, the parameterization and the validation of a coupled 3D numerical model integrating the whole of the physical and biological processes which control the dynamics and the variability of the global ecosystem of the Southern Ocean. The biological module of this model will be primarily centred on the zooplankton (in particular the krill) and the higher predators, but will take into account phytoplanktonic variables limiting the feeding of the herbivores.

In a second step, the coupled 3D model will be applied to the evaluation of the response of this ecosystem according to various scenarios of forcing taking account of natural factors as well as anthropogenic.