The paper provides an overview of the inventory of ad hoc studies concerning the seafood market studies in the participant countries. The work was based on a typology established after a phase of exploratory research following an analytical common framework. Presentation of the results is achieved through a thematic synthesis of the returns, having regard to the particular needs of aquaculture producers. Most of the ad hoc reports produced originated from private sectors organisations, with a limited provision from public sector. The frequency and detail of coverage of reports tended to be generally a function of the size and value of the markets concerned. Pan-European coverage of the markets for aquatic products was unsurprisingly poor. The compilation and review of the ad hoc surveys has identified a number of common deficiencies which warrant consideration if more added value data are to be made available to producers of new aquaculture products.