الفهرس 
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Abstract
The present study surveyed some of the ectoparasitic trichodinid and myxozoan protozoan endoparasites infecting selected commercial fishes from locations along the River Nile at El Minia province in Egypt. Fishes specimens were collected during the period from April (2010) to August (2011). Fishes specimens were usually collected from boat landing sites, fishermen. During this study, a total of 367 fishes were examined. The examined fishes assigned to five different species of four families, of which, Oreochromis niloticus belonging to family: Cichlidae, Clarias garipinus belonging to family: Clariidae, Labeo niloticus and Barbus bynni belonging to family: Cyprinidae, and Tetraodon fahka belonging to family: Tetraodontidae. In general, the examined fishes were small and medium sized which are usually consumed by the Egyptian people.
The highest percentage of infection with protozoan parasites was recorded in T. fahka which was 100% (60/60), B. bynni with a percentage of 68.18% (15/22), L. niloticus with a percentage of 66.66% (44/66), C. gariepinus with a percentage of 65.71% (69/105), and the lowest percentage of infection with these parasites was recorded in O. niloticus with a percentage of 51.75% (59/114). A mixed infection between trichodinid parasites and myxosporidian parasites was recorded in some of the examined fishes with a percentage of 7.08% (26/367) in both O. niloticus and C. gariepinus fishes.