Fig 2. Amyloodinium ocellatum on the gills (a-c) and skin (d) of young tilapia. Pathological alterations of tissues, SEM.Amyloodinium ocellatum (Dinoflagellida)
a - swelling of gill filaments and fusion of respiratory lamellae. b - erosion of gill epithelium of the site of parasite attachment. c - lesion on the surface of gill epithelium after detachment of parasite. d - degeneration of epithelial cells and concentration of bacteria at the site of parasite attachment.