The “Ciclos de Produção Planctónica e Sua Relação com os Recursos Pesqueiros” project aims to describe the dynamics of planktonic communities associated with the coastal upwelling system in Portugal. This description is important for understanding the bio-oceanographic processes that condition posture, growth and survival in pre-recruitment phases, as well as patterns of abundance, distribution and migration of fishery resources, in particular small pelagic species. In addition to this goal, project also aims to determine the areas, seasons and the laying intensity of these species.