A growing focus on the ethical treatment of fish in aquaculture is gaining importance and should be acknowledged. Emphasis should be placed on research and development in new areas of aquaculture, particularly biotechnology, for diagnosis, vaccine development, and aquatic medicine specifically for cold-blooded animals. The unique health management requirements of aquaculture, which involves delicate cold-blooded animals with less developed immune systems, highly influenced by ambient temperature and environment, and therefore highly susceptible to diseases, must be taken into account.

Seven emerging areas in aquaculture health management have been identified, including non-infectious diseases, the demand for biosecurity measures, zoonotic diseases, immunology and defense mechanisms in fish and shellfish and prophylaxis, biotechnological interventions through the development of diagnostics and vaccines, and aquatic medicine for cold-blooded animals, as well as the welfare of aquatic animals in aquaculture. These emerging issues are addressed in various chapters of this book. The book provides comprehensive, updated information on fish and shellfish health management in 20 chapters, with eight new chapters dedicated to the emerging areas of aquaculture health. Overall, the field of fisheries education in health management has undergone significant changes, with increased information available through research and development, new emerging areas, technologies, and trends in aquaculture.

1. Introduction   K.M.Shankar, 2.Pathological Processes and Disease Development  K.M.Shankar and  K.S Ramesh, 3. Parasitic Diseases of Fish and Shellfish-.K.M.Shankar,  Naveen Kumar  B.T and  K.S Ramesh, 4. Bacterial Diseases of Fishes Naveen Kumar B.T and  K.M Shankar,  5. Bacterial and Other Diseases of Significance of Shellfishes Naveen Kumar B.T and  K.M.Shankar, 6. Viral Diseases of Fishes  K.M.Shankar, 7. Viral Diseases of shellfishes- K.M.Shankar and  Abhiman,  8. Oomycete and Fungal diseases in fin fishes- . Pravata Kumar Pradhan and  Neeraj Sood, 9.   Non infectious diseases of fishes (NIDs)- K.M.Shankar,  10. Toxicology in Aquaculture- K.M.Shankar, 11. Epidemiology and Biosecurity in Aquaculture Health Management- K.M Shankar, 12.  Zoonotic diseases originating from fish and shellfish -  K.M.Shankar and  Prakash Patil , 13.Conventional Methods of Disease Diagnosis- K.M.Shankar,  14. Antibody Based Disease Diagnosis- Omkar Vijay Byadgi,  Naveen Kumar  B.T and . Raj Reddy, 15. Nucleic Acid Based Disease Diagnosis- . Omkar Vijay Byadgi,  Naveen Kumar  B. T and  Raj Reddy,  16. Aquatic Medicine  K.M. Shankar and . Prakash Patil,  17. Defense Mechanisms in Fishes and Crustaceans- Prakash Patil and  K.M.Shankar, 18 Prophylaxis in Aquaculture. M. N. Venugopal, 19.   Biotechnology in Aquaculture Health Management- K. M. Shankar, 20. Welfare of fish and shellfish  in aquaculture K.M. Shankar