Fisheries, as a scientific discipline incorporates concepts from aquaculture, ecology, etc. The main objective of the book is to analyze the utilization of aquatic resources for cultivation of fishes and related products, and the importance of fisheries in maintaining ecological equilibrium. Some of the diverse topics covered in this book are aquaculture, mariculture, risk avoidance behavior, etc. It includes chapters on role of fisheries in maintaining ecosystem health, acoustics, etc. The extensive content of this book provides the readers with a thorough understanding of the subject. Students, researchers, experts and professionals will benefit alike from this book.