Scope The scope of the analysis is confined solely to the commercial fishing sectors for Florida West Coast, Alabama, Mississippi, Louisiana and Texas. In spite of the size of the recreational fishery in terms of catch, severe data limitations preclude any detailed analysis of this sector. This, however, should have only minimal effects on the analysis of the commercial sector. The GMFMC has established that the commercial and recreational sectors are, to a large extent, geographically distinct in regard to the location of fishing activity. The data utilized in this study consist primarily of secondary data reported annually by the National Marine Fisheries Service. While these data constitute the "best available" data, its highly aggregate nature has forced considerable simplification in building the empirical models. Within the context of limited data, it is anticipated that some of the theoretical and statistical formulations presented will prove useful to others engaged in the empirical analysis of the fisheries under similar data confines. Chapter II presents a review of current bioeconomic theory and develops a theoretical model of a multi-sector fishery with variable output prices. Chapter III presents the empirical specification of the catch and price equations for each state participating in the GMRFF. Also included is a discussion of the estimators utilized in estimating these equations. The resulting estimated equations are discussed and used to estimate maximum economic yield in Chapter IV. Chapter V con- tains a summary of this study and all conclusions which have been rendered. Also included are suggestions for further research.