This monograph is based upon research undertaken over the period 1989-1992. The contributions to this book are based principally on an edited selection of working papers that appeared in the series Economics of Giant Clam Mariculture between November 1989 and May 1992. By presenting this selection in revised and edited form, it is hoped that these research contributions will be of more lasting and comprehensive value as reference material. The papers selected for inclusion here are only a portion of those completed. However, they are the papers which relate most directly to the southwestern Pacific.