Initiated in 1982, A.I.D.'s Pond Dynamics/Aquaculture Collaborative Research Support Program (CRSP) conducts research in developing countries and the United States to develop aqua cultural technology as a means of increasing the availability of animal protein. Due to funding constraints, the number of project sites was reduced in 1987 from six to three. This report summarizes activities and accomplishments for FY1988. (1) Under the Global Experiment, by far the largest CRSP component, research was conducted in Rwanda and Thailand on the chemical, physical, and biological responses of tilapia-stocked freshwater ponds treated with varying rates of fertilizers, and in Panama on the effects of diet protein and stocking density on shrimp production. In December 1987, however, political conditions forced the Panama project to relocate to Honduras, where research is still in the planning stage. (2) Major FY88 accomplishments stemmed from the U.S. component and included: consolidation of a 1.5 million-item central data base, the world's largest standardized collection of pond dynamics and aquaculture measurements; analysis of results from the Global Experiment (showing, inter alia, that pond productivity was highest in Thailand and lowest in Rwanda); and development of various models, including three empirical models for examining oxygen flow through pond systems. Three projects were conducted under the U.S. Special Topics Research Program. (3) Projects under the Host Country Special Topics Research component numbered ten and focused on areas facilitating U.S. host country collaboration and the development of indigenous research capacity. In addition to summarizing technical accomplishments in the above components, this report briefly reviews CRSP efforts in project development, public services, program management, and technical guidance.