Abstract: Oxygen is required to support aquatic life and maintain water quality, it is the most important dissolved gas in water. A small amount of oxygen, up to ten molecules of oxygen per million of water, is actually dissolved in water . Fish and zooplankton breath Dissolved Oxygen (DO) and without sufficient oxygen mortality will occur. In this study we give the mathematical model for the interaction between oxygen transport and oxygen use up by contaminants in polluted water bodies and derive the optimal control for the resulting coupled system. We also examine the existence and uniqueness of solution and then state the optimality conditions.
F.B.Agusto and Bamigbola , 2006. Optimal Control for Oxygen Depletion in an Aquatic System. Research Journal of Applied Sciences, 1: 67-71.