This presentation aims to analyse, in the case of Spain, strategies and co-operation for marketing development of aquaculture products at national level. An analysis of the problems that arise in the marketing of aquaculture products in Spain are discussed at the same time as the strategies of the Spanish Aquaculture producers are presented. Special emphasis should be devoted to strategies as identification of products through their guarantees of origin, and the development of local and international markets through the adaptation to consumer gastronomic and cooking demands. Finally, the author defends the strategy that Mediterranean aquaculture producers should utilize the concept of 'Mediterranean diet' in order to enlarge markets.