For a long time, the fishery resource had been considered as inexhaustible given the modes of fishing. This influenced the attitudes of Fishers, scientists, managers, and politicians therefore, complicating efforts to establish effective restrictions on Fishing activities. By the second half of the 20th century, the paradigm of inexhaustibility could not hold, due to the advent of large-scale industrial fishing and far-off fleets. With a mismatch in fishing history and fishery management efforts its hard to estimate the baseline for managements. This book gives the audience some of the scientific management efforts and the organizations involved. The book also explains the different types of fisheries and fisheries management strategies that lead to sustainable livelihoods. Mathematical approaches are also provided in this book to enable the reader in determining the health status of a fishery. For readers interested in fishery managements the book offers considerations and guidelines on both gear and technical approaches to responsible fisheries. The book can help in providing basics of scientific fisheries managements to the various stakeholder at different instances of a fishery health.