The design of a marine environmental simulation system

The purpose of this system is to hold, rear and culture marine biota under conditions of con trolled temperature, salinity, dissolved oxygen and turbidity. Each of the parameters is to be capable of wide range, rapid, and independent control. The physical requirements and limitations associated with parameter changes in the flow through system are examined. The problems of parameter interaction and, when applicable, the nonconservative nature of the parameters are also examined. A conceptual frame work within which to optimally examine and describe the control problem is developed and then used to determine system requirements. Several implementations are developed and a particular configuration is recommended.