This book provides current research on aquaculture. Chapter One reviews management, challenges and developments of aquaculture in Ghana, West Africa. Chapter Two covers the fundamental knowledge of phage infection in bacterial cell and extends it to phage therapy by using a model of Vibrio-phage, called VH-P, with its specific Vibrio harveyi host, VH 13-1. Chapter Three discusses taste-taint modelling in Recirculating Aquaculture Systems (RAS) farmed fish. Chapter Four investigates the causative effect of protein, lipid, feeding level and their interaction on growth, biological parameters and haematology of Oreochromis niloticus. Chapter Five provides a review on the mapping of the value chain for farmed fish and gender analysis along the aquaculture value chain in Kenya. Chapter Six answers why aquaculture trials have not been successful in Tanzania.