This book examines the role of coastal and marine ecosystems in ensuring food security across the African continent. It explores the vast potential of these resources, the challenges faced in their sustainable management, and the innovative solutions being implemented to overcome these challenges. Issues of climate change are paramount to the functioning and productivity of these coastal areas in food production and these are also highlighted in this book. Through detailed case studies and expert insights, this book provides an understanding of new economic opportunities related to marine resources, such as sustainable fisheries and marine-based agriculture integration. Other topics included are use of seaweed and other marine plants as food sources, and development of aquaponics system. This book is a valuable resource for researchers, students, policy makers, non-governmental organizations, government workers in the field of aquaculture and mariculture.