Study on Some Ectoparasitic Diseases of Catfish, Clarias gariepinus with their Control by Ginger, Zingiber officialeMediterranean Aquaculture JournalJ F. Abo-Esa2008ArticleOpen Accessfingerling mortalities, especially in culture system due to the invasion of parasites.The protozoan Trichodina spp.and the monogenean Gyrodactylus spp.were the dominant parasites