| Name | Description |
| Cold Water Vibriosis | Caused by the bacterium Vibrio salmonicida (V. salm) and is a problem in farmed salmon. The disease is also called Hitra disease. |
| Furunculosis | caused by the bacterium Aeromonas salmonicida subsp. salmonicida (A. salm), is one of the most serious infectious diseases of wild and farmed salmonids throughout the world, except South America. |
| Infectious Pancreatic Necrosis | used to be a disease of first-feeding fry in the freshwater phase, in recent years it has become a serious problem in marine salmonid farming. Salmonids are predominantly susceptible, particularly brook trout, brown trout, rainbow trout, Atlantic salmon, Pacific salmon and Coho salmon. |
| Pancreas Disease | an important economic disease of European farmed Atlantic salmon. It can cause significant losses due to morbidity, mortality and reduced production. While the name suggests that the primary organ damaged is the pancreas, severe cardiac and skeletal myopathies are also key features of this disease. |
| Piscirickettsiosis | SRS (a.k.a. Salmon Rickettsial Syndrome or Piscirickettsiosis or Coho salmon septicaemia or Huito disease) is considered to be the most important disease problem in the Chilean salmon farming industry |
| Proliferative kidney disease | A parasitic disease of great economic significance to salmonid aquaculture. Although primarily regarded as a condition affecting first season rainbow trout (Oncorhynchus mykiss), all salmonids can become infected during freshwater stages with varying severity. |
| Pseudotuberculosis | Yersinia pseudotuberculosis is a Gram-negative bacterium which primarily causes disease in animals; humans occasionally get infected zoonotically, most often through the food-borne route. |
| Sea Lice | Sea lice is the common term used for one group of parasitic caligid copepods which occur naturally on fish world-wide. Copepods are crustaceans found in both marine and freshwater environments. Most are planktonic, while others are found living in the sediments. Some species are specialized to live as parasites, on or in host organisms at some stage in the lifecycle, although one or more stages are free-living as plankton in the water, usually during the early stages of development. |
| Vibriosis | A bacterial disease of salt-water and migratory fish, and the severity of vibriosis has increased proportionately with the development and expansion of fish farming world-wide. It has a global distribution with epizootics on all continents and a wide range of fish. |
| Winter Disease Syndrome | Over the last few years a disease referred to as Winter Disease Syndrome (WDS) has been affecting (mainly) sea bream in the Mediterranean area. The diseased fish show typical behaviour for this disease, i.e., they swim belly-up and, as the name indicates, they are affected mainly during winter when water temperatures are low. |
