This is a companion volume to World Animal Science C4, The Production of Aquatic Animals (Crustaceans, Molluscs, Amphibians and Reptiles). It describes the production of fishes, particularly the most important species or species groups farmed in both marine and fresh waters throughout the world. The volume emphasizes all the systems and practices currently used for production, aspects which are unusual or constrain further development, and key areas of present research.