Explore how ecosystem productivity, from virus, bacteria and phytoplankton to fish and marine mammals, and trophic interactions are influenced by the ocean physics and chemistry; particularly how thermohaline circulation and the advection of Atlantic and Arctic water through the system are influencing the marine ecosystem on interannual to multidecadal scales.

• Determine quantitative relations between phytoplankton and zooplankton productivity in the spring bloom setting and in the subsequent setting of regenerated production.
• Explore the seasonal dynamics and determine the quantitative role of the key species Calanus finmarchicus as food for larval, juvenile and planktivore fish.
• Explore the specific role of ocean climate on plankton productivity from seasonal to multidecadal time scales.