Evaluating management options for Baltic salmon (Salmo salar) using bio-economic operating models in a generic simulation framework

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The population of wild Baltic salmon has undergone in the last century a severe decline, due to dam building, overfishing and pollution. The international effort to reverse this decline can claim success in some of the main Baltic rivers where stocks are seen to be recovering, yet some wild stocks remain highly depleted. From a policy perspective there is a desire to identify a management strategy that would have a high probability of safeguarding the stocks while minimizing economic and social hardships of regulation. The difficulty in designing experiments in the real world makes simulation an attractive realm in which to evaluate alternative management regimes.