Focusing on pathobiology and protective strategies against protozoan and metazoan parasites of fish, this book reviews the latest research on important parasites: those that cause financial hardships to the aquaculture industry, have been introduced to new geographical regions through transportation of infected fish, are pathogenic to groups of finfish and detrimental to production, are highly adaptable and not host-specific with worldwide distributions, and that may serve as disease models for studies on other pathogens. It also highlights gaps in the knowledge to help direct future research.

Climate change with global warming is not disputed by the vast majority of scientists and the aquatic system is most affected. A global rise in water temperature and acidification of the aquatic environment will continue even if we can significantly reduce the current output of the two most important greenhouse gasses (carbon dioxide and methane). These and other environmental changes will affect fish health which includes infectious pathogens. This important new text is the second volume on climate change and fish health. It covers changes to the freshwater ecosystem and their current and expected effects on selected infectious diseases of fish. The book represents contributions by over 50 experts from 18 countries. Comprehensive and thought-provoking, the book details abiotic and biotic environmental changes in temperate and tropical freshwater ecosystems, sequestrations of atmospheric carbon dioxide and effects on infectious diseases (12 microbial and 10 parasitic) in economically important fish in tropical, subtropical and temperate waters. The text is key reading for fish disease scientists, aquatic ecologists, fish health consultants, veterinarians, policy makers and all who are interested in fish health and the environment.

This textbook provides a highly accessible and concise overview on the innate and adaptive immune systems in fish as well as on fundamentals and latest developments in fish vaccinology. It introduces the anatomy and molecular functions of immune organs and furthermore examines in detail the interactions between the host immune systems and different types of pathogens. The textbook is essential reading for students in Veterinary/Fish Medicine, Aquaculture and Immunology. Furthermore, the volume serves as a quick reference for Fish Pathologists and Aquaculturists. Chapter 2 is available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.