Kvamsdal, SturlaMaroto Fernández, José MaríaMorán Cabré, ManuelSandal, Leif K.2023-06-182023-06-1820161500-4066https://hdl.handle.net/20.500.14352/27620Publicado como artículo de revista: Kvamsdal, Sturla & Maroto, José M. & Morán, Manuel & Sandal, Leif K., 2017. "A bridge between continuous and discrete-time bioeconomic models: Seasonality in fisheries," Ecological Modelling, Elsevier, vol. 364(C), pages 124-131. https://doi.org/10.1016/j.ecolmodel.2017.09.020Wedevelopadiscretizationmethodto construct adiscretefinite-time bioeconomicmodel, corresponding to bioeconomic models with continuous-time growth function, but allowing the analysis of seasonality in fisheries. The discretization method consists ofthree steps: first, we estimate a proper growth function for the continuous-time model with the Ensemble Kalman Filter. Second, we use the Runge-Kutta method to discretize the growth function. Third, we use the Bellman approach to analyze the optimal management of seasonal fisheries in a discrete-time setting. We analyze both the case of quarterly harvest and the case of monthly harvest, and we compare these cases with the case of annual harvest. We find that seasonal harvesting is a win–win optimal solution that provides higher harvest, higher optimal steady state equilibrium, and higher economic value than annual harvesting. We also demonstrate that the discretization method overcomes the errors and preserves the strengths of both continuous and discretetime bioeconomic models.engtechnical reportopen accessBioeconomic modellingSeasonal fisheriesSustainable management of resourcesDiscrete-time dynamic optimizationKalman filterRunge-Kutta method.Ecología (Biología)Medio ambiente naturalComercio2401.06 Ecología animal5304.03 Comercio exterior