Pulse fishing policy for a model with state-dependent harvesting

The reports of the Second International Symposium on Cage of Aquaculture in Asia (SISCAA) show that much attention is being paid to resource management. It is important to solve this remarkable problem. In this work, a state-dependent impulsive differential model focusing on a stage structure and impulsive harvest aims for the simulation of the factual biological resource management. With the approaches of continuity of function rule, we obtain the sufficient conditions of the existence and orbitally asymptotic stability of periodic solution. Our results are valuable for biological resource management in practice.