The evaluation of fisheries management: a dynamic stochastic approach

• Autores: José María Da Rocha Álvarez, María José Gutiérrez Huerta
• Localización: Working paper series ( RGEA ), Nº. 12, 2004
• Idioma: inglés
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• Resumen

  • Most existing studies evaluating the management of fisheries fail to check the goodness of the parameters estimated in reproducing the observed dynamics of the resource. We present an alternative approach: assuming that the stock growth path is affected by productivity shocks that follow a Markov process, we calibrate the growth path of the resource such that the observed dynamics of resource are matched. This approach is applied to two different fishing grounds: the European Anchovy (Division VIII) and the Southern Stock of Hake. In this context, an efficient policy consists of applying a different exploitation rule depending on the state of the resource and the constant-escapement rule is not the efficient policy .