The project OASIS aims at describing the functioning characteristics of seamount ecosystems. OASIS' holistic aproach to investigate seamount ecosystems integrates hydrographic, biochemical and biological information. Based on two case studies, OASIS will yield an advanced mechanistic understanding of the processes characterizing seamount ecosystems and their influence on the surrounding ocean. The scientific results, condensed in a conceptual ecosystem model, will be applied to outline a model management plan as well as a site specific management plans for the seamounts investigated.