Molecular Characterization and Immunological Approaches Associated with Yellow Grub Trematode (Clinostomid) Infecting Nile Tilapia

Figure 2

Oreochromis niloticus infected with different degrees of intensity of infection with clinostomid encysted metacercariae: (a) two cysts of clinostomid showed a yellowish cyst in the buccal cavity (black arrow); (b) single excysted metacercariae of (white arrow); (c) three cysts of C. phalacrocoracis infected fish showed large spherical cysts in the buccal cavity (black arrows); (d) ten cysts of C. phalacrocoracis that infect fish (black arrows).