Structure of fish assemblages -- Discrete vs. overlapping assemblages and assemblage stability -- Stream eocolgy and limonolgy as related to fish assemblages -- Influence of global to regional zoogeography on local fish assemblages -- Physical factors within drainages as related to fish assemblages -- Disturbance, harsh environments, and physicochemical tolerance -- Morpholgy, habitat use, and life history. Interactive factors: competition, mixed species benefits and coevolution -- Interactive factors: predation effects in fish assemblages -- Effects of fish in ecosystems. This book is about freshwater fish in streams, lakes, reservoirs, and special habitats around the world. It addresses approximately twenty major topics in freshwater fish ecology in a format suitable for use in graduate-level courses. The book focuses on basic ecology and contains much data from fisheries ecology. Dr. Matthews explains the way in which empirical studies, theoretical concepts, and experimental evaluations blend into the current state-of-the-art with respect to each major topic, and provides original data and interpretations on some points as well as new syntheses. Each chapter contains empirical information, a synthesis, and a summary.