1. EFIMAS - Operational Evaluation Tools for Fisheries Management Options EUROCEAN 2004, GALWAY, IRELAND, slide EU FP6 SSP8-CT-2003-50251 EFIMAS Objectives Approach J.R. Nielsen, P.J. Sparre, L. Kell, P. Degnbol, S. Pascoe, M. Pastoors, L. Motos and M.B. Horsten (Editors on behalf of the EFIMAS Consortium) To develop an operational management evaluation framework that can evaluate the trade-off between different management objectives when choosing from alternate management options. The framework will: be developed to inform an exploratory, adaptive decision-making process. appraise biological, social and economic effects of fisheries management measures in the EU. be applied to key European fisheries. take into account the dynamics of the fisheries systems and uncertainties, and will include risk assessments. 1 Use of stochastic simulation covering the full fisheries system from the fish resources, through data collection, assessment and management, and the response of the system to management. The input data will be generated by a descriptive model assumed to represent the “true/real” system. The data will then be processed by a traditional or alternative assessment model, to generate management advice. Simulations of the resultant management actions and of their effect on the ”true/real” system will generate a range of performance measures for the resource and the fishery. These measures can then be compared across different assessment models and management approaches. Fisheries Management Evaluation Framework Output and Parameters from WP4 analyses:  Biological Dynamics  Fleet Dynamics  Fishery Interactions  … Hypotheses about the “real” system Management Options  TAC regulations  Effort Control  Technical Measures  … Measures of Performance × WP3 Apply Simulation Model from WP3 to Case Studies. Parameterization of Model: Analyses with existing and emerging descriptive stock/fisheries assessment models (e.g. TEMAS, CUBE, XSA). Descriptive Models Sustainability Objectives Economic Objectives Social Objectives … Evaluation WP5 Feedback (e.g. re-iterate) WP4

2. EFIMAS - Operational Evaluation Tools for Fisheries Management Options EUROCEAN 2004, GALWAY, IRELAND, slide EU FP6 SSP8-CT-2003-50251 EFIMAS 2 Potential application The operational evaluation tools will be developed in parallel with an evaluation of their utility in informing a decision making process  adaptable to experiences from their use by stakeholders. The tools will be implemented in a range of case studies of key European fisheries  adaptable to experiences from case implementation. EFIMAS will only recommend on the implementation of management options that have been evaluated through the management evaluation framework. Example A switch from stock based to fleet-and-fishery based management would represent a paradigm change in fisheries management. The switch would enable advice as effort limits, and account for technical interactions. It could also involve economic and social parameters. The evaluation tools would simulate both stock-structured and fleet-structured input data, and would perform the traditional stock assessments with stock structured data and alternative assessment with fleet structured data. Replicate runs including stochastic variation would be used to estimate probability distributions of the performance measures of the two alternative management scenarios so that their performance could be compared. The framework will enable stakeholders to evaluate management options relative to specific objectives and to the desired properties of the management procedures. This will allow the decision-makers to explore alternatives by comparing the expected performance and outcomes of various options on the basis of an evaluation and simulation framework.