Percid Fish Health and Disease

The farming of perch (Perca fluviatilis and Perca flavescens) is developing in both Europe and North America and the main infectious diseases associated with these species include viral diseases, such as the perch fry rhabdovirus (PFRv), bacterial diseases such as Flavobacterium psychrophilum and Aeromonas sobria, protozoan parasites including Ichthyobodo necator and myxosporideans such as Myxobolus neurophilus. Non-infectious conditions such as tail erosion, gill disease and skeletal deformities also can give rise to significant livestock challenges and welfare problems.