Pilot Assessment of Primary Productivity OSPAR Convention The Convention for the Protection of the Marine Environment of the North-East Atlantic (the "OSPAR Convention") was opened for signature at the Ministerial Meeting of the former Oslo and Paris Commissions in Paris on

Abstract

International audiencePrimary production sustains the functioning of marine food webs. Over the long-term (1997-2019) primaryproduction was stable in the Greater North Sea, Celtic Seas and Bay of Biscay and Iberian Coast. Significantdecreases occurred 2015-2019, likely driven by reduced nutrient availability and climate change, which maydisturb higher trophic levels