Aquaculture is expanding along with the increase in demand for animal protein and hence significantly contributes to food security and socioeconomic livelihood. This book gathers current principles of aquaculture that are applied and practiced globally. It covers crucial topics including site selection, breeding and husbandry techniques, nutrition, health management, biosecurity, and sustainability. Furthermore, aquaculture's impact on food production and the economic values generated by the industry are also explored. While emphasizing the significance of environmental sustainability, this book encourages practices that minimize negative impacts on the ecosystem and preserve the health of our oceans. As a collection of reviews on the current practices in aquaculture, this book is a resource for individuals working in or interested in the industry. It also serves as a reference and guideline for students, researchers, and aquaculture operators.