| Summary: | S ixty-five eels (Anguilla anguilla) collected in the period betweenJanuary-May 2008, from Al Salam channel (15 cases), Zagazig markets(17 cases) and Al Manzala Lake (33 cases) were examined for pathologicallesions induced by parasitic infestation with identification of thecausative parasite.The prevalence of pathogenic parasites (single or mixed infection) was 22out of 65 eels (33.85%). The identified parasites were Anguillicola crassus(7 cases) (10.7 %), Dactylogyrus species (4 cases) (6.1 %), Pseudodactylogyrusspecies (5cases) (7.7%), Myxidium species (2 cases)(3.07%), Trichodina species (3 cases) (4.6 %), and Proteocephalus species(one case) (1.5 %).It could be concluded that the parasitic fauna markedly impairs the Egyptianeel’s production and produce mild to severe degenerative, necroticand inflammatory changes in the affected organs.
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