Book Cover; Title; Copyright; Contents; Preface; 1 The Diversity of Fishes; 2 Fishes and their Habitats; 3 Swimming; 4 Buoyancy; 5 Gas Exchange, Blood, and the Circulatory System; 6 Osmoregulation and Ion Balance; 7 Food and Feeding; 8 Reproduction, and Life Histories; 9 Endocrine Systems; 10 Sensory Systems, and Communication; 11 The Nervous System; 12 The Immune System; 13 Behavior and Cognition; 14 Fisheries and Aquaculture; Subject Index; Systematic Index