Abstract
A single state bioresource management model was derived from the viewpoint of control engineering based on a nonlinear and stochastic dynamic system. The model can be used to solve the problem regarding the analysis and management of biological resources in the presence of uncertainty and the implication of uncertainty in decision making. The management of trace Zn bioaccumulation in aquaculture abalone, Haliotis diversicolor supertexta, is illustrated to show the applicability of established techniques in designing a dynamic feedback control strategy. General results from the engineering analysis are presented in the form of strategies of constant Zn concentration in molluskan shellfish and of constant control effort and in the form of warning about the instability of the system. Numerical data were obtained which could be used to design a controller minimizing fluctuations about a chosen equilibrium state. Dynamic feedback optimization can serve as a guide to the decision making of sustainable bioresource management in a polluted ecosystem in that the decisions are required to be made in the presence of uncertainty.
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