Aquaculture has been growing rapidly, and future advancements will rely on the integration of scientific knowledge of varied fields such as molecular and cellular biology, and ecology. Comprehending the link between farmed species and their pathogens and parasites can be significantly challenging to environment. Scientists are making continual efforts to build a model for aquaculture that does not harm environment and offers a dependable source of healthy seafood. This book has been well described and comprises of contributions from prominent global authors, providing rich quality scientific topics focusing on important issues for successful health management of cultured aquatic animals. This collective effort has been aimed at providing extensive information useful for both educational and industrial sectors.