Dynamic Analysis of a Phytoplankton-Fish Model with Biological and Artificial Control

Figure 5

(a) An order-1 periodic solution to system (1). (b) The time-series that corresponds to the order-1 periodic solution, where the blue curve denotes population 𝑦 and the red curve denotes population 𝑥 (𝑞=1, 𝜏=0, 𝑝=0.8).

(a)

(b)