Figure 9
From: Periodic solution and control optimization of a prey-predator model with two types of harvesting
Numerical simulations in case \(\pmb{x_{E_{1}}< h< x_{E_{2}}<(1-p_{h})h+\tau_{h} <K}\). (a)Â Phase portrait of prey fish density and predator fish density on \(h=5.8\). (b)Â Time series of prey fish density. (c)Â Time series of predator fish density.