This chapter covers the host range and specificity, morphology, life cycle, physiopathology, parasite-host interactions, role as disease vector and control and prevention (biological control, environmental approach, drug therapy, vaccination and insecticides) of Lepeophtheirus salmonis and Caligus r...

Resistance development to parasiticides has been a problem in both terrestrial and aquatic environments. A major challenge exists in early detection of resistance emergence due to the low frequency at which resistant organisms can occur initially within a population and the difficulty in detecting t...

The host parasite system of the MSX parasite, Haplosporidium nelsoni, in the eastern oyster, Crassostrea virginica, poses many challenges for experimental study. The interactions that are involved in the development of the typically high prevalence and intensities of disease encountered in certain e...