This report constitutes a contribution to the EFIMAS project, Operational Evaluation Tools for Fisheries Management Options, under EU's sixth framework programme, priority 8.

EFIMAS is carried out as a multidisciplinary research project with the aim to improve the scientific foundation for fisheries management. The report outlines bio-economic models, which are designed to shed light on the efficiency of different management tools in terms of quota or effort restrictions given the objectives of the Common Fisheries Policy about sustainable and economic viable fisheries.

The report addresses the complexities of biological and economic interaction in a multispecies, multifleet framework and outlines consistent mathematical models.