Results about the damages caused from parasitic disease of Gyrodactyosis in the fingerlings of the rainbow trout (O.mykiss)

Abstract

The monogenean Gyrodactylus spp. is an important parasite of farmed fish in Europe because of the heavy damages and losses that induce. For this reason one of the main representative, Gyrodactylus salaris is listed in List III of pathogen in the Fish Health Directive 91/67/EEC. During 2013 are collected in Pogradec 200 fingerlings of rainbow trout (Oncorhynchus mykiss) to the purpose of identifying the presence of Gyrodactylus spp. parasite. The parasite was mostly observed on the back of the fish and mostly in the period from March to July because of the favoritism that comes from the water temperature.Keywords: Oncorhynchus mykiss, Gyrodactylus salaris, Gyrodactylus spp,parasite, fish, etc