Dynamics of Single Species Group Report.- Why Do Fish Populations Vary?.- The Availability and Information Content of Fisheries Data.- Dynamics and Evolution of Marine Populations with Pelagic Larval Dispersal.- Ecosystems Dynamics Group Report.- Observed Patterns in Multispecies Fisheries.- Some Approaches to Modeling Multispecies Systems.- The Response of Multispecies Systems to Perturbations.- Management under Uncertainty Group Report.- Kinds of Variability and Uncertainty Affecting Fisheries.- Managing Fisheries under Biological Uncertainty.- The Wider Dimensions of Management Uncertainty in World Fisheries.- Strategies for Multispecies Management Group Report.- Strategies for Multispecies Management: Objectives and Constraints.- Management Techniques for Multispecies Fisheries.- Epilogue.- Geographical Glossary.- Glossary of Technical Terms.- List of Participants with Fields of Research.- Author Index.