Abstract A conceptual model of the decision-making process in fisheries management is presented in conjunction with applications of computer and systems analysis to this process. One of the most difficult problems to solve is selecting objectives to be used for management evaluation. An objective function based on some or all of the components of yield, species, size desirability, and environmental quality is needed. Systems analysis and computer technology in data processing and simulation may be used in many situations to evaluate decision alternatives as an aid in developing management strategies.