Uronema marinum

From Fish
Free living protozoa of Uronema spp
Ulcers associated with Uronema marinum
Severe ulceration associated with Uronema spp

Uronema marinum is a free-living hymenostomatid ciliated protzoan which infects the gills, viscera and body muscle in Atlantic and Pacific marine fishes.

Life cycle

Both of these parasites have a direct life cycle: they live on the fish, feeding and the population growing very rapidly, then drop off into the water column

Clinical signs

This parasite causes extensive damage to the body muscle. Death can occur as a result of exceptional load of the parasite on the gills, thus interfering with normal respiratory function.