Global asymptotical stability for a fishery model with seasonal
A new fishery model is proposed by using the strategy of seasonal
harvesting. Sufficient and necessary conditions are established to
ensure the existence of a unique equilibrium or a periodic solution by
the approach of Poincaré maps. It is shown that the equilibrium or the
periodic solution is globally asymptotically stable. Numerical examples
are provided to demonstrate the model dynamics and some biological
implications are given as well.