Nonlinear Dynamic Model of Re-balancing Ecosystems and Improving Economic Development

This paper establishes a Volterra predator-prey model with three biological populations, and specify the steady-state numbers of the three populations. Then, based on AHP, obtain the ratio of different species in the second population. When other species are not totally suppressed, with an improved predator-prey model we simulate the current situation to obtain predicted numbers of populations, and establish a nonlinear dynamic model that reflects an interdependent set of species, introduces mussels and seaweed growing on the sides of the pens to obtain the numbers of populations in steady state and the outputs of model. Finally, build a nonlinear equilibrium optimization model, from which we obtain an optimal strategy and harvest, and the model is proved can improve the economic development.