Abalone Haliotis discus hannai Ino are large algivorous marine gastropods, and the most commercially important specie of gastropods in aquaculture for Asia. However, abalone culture has suffered serious problems of mortality from disease outbreaks, environmental contamination and decreased innate immunity of abalone in China and other countries or districts. It is an emergent and necessary work for us to explore the immune system of abalone and to find effective methods to control these diseases or t...