... because γ1=0.Case study: Bay of Biscay anchovyBecause the first age class of Bay of Biscay anchovy accounts for ca. 80% of spawning stock biomass, the sustainability of the precautionary approachwill ... Ledayev, R. J. Stern, and P. R. Wolenski. Quali-tative properties of trajectories of control systems: a survey. Journal of Dynamical Control Systems, 1:1–48, 1995.[7] P. Cury, C. Mullon, S. Garcia, ... discounted rent of a fishery are all examples of dynamic optimal control problems. Basic contributions for the optimal management or conservation of natural resources and bioeconomic modeling can be...