This paper introduces “Marine Spatial Planning, “Blue Growth policy” and the “EU strategy for the Baltic Sea” (EUSBSR) as the measures of the European Union aimed at the sustainable management of the economic potential of the oceans. It discusses how those concepts work and relate to each other. The focus is on one economic sector within the concept of Blue Growth, namely aquaculture. After an overview of what it entails, the paper explains the economic and environmental aspects of the fish and bivalve farms in aquaculture the ecological problems that it involves. The final part of the paper presents an analysis of selected EUSBSR Aquabest guidelines aquaculture projects in the Baltic Sea region.