Amoeba-like infections in cultured marine fishes: systemic infection in pompano Trachinotus falcatus L. from Singapore and gill disease associated with Paramoeba sp. in sea bream Sparus aurata L. from Greece

Two cases of Amoeba-like infections in cultured warmwater marine fish are described, a systemic infection in pompano T. falcatus from Singapore and a gill infection in Mediterranean (Greece) sea bream S. auratus. All pompano showed marked systemic infection of Amoeba-like parasites in the gills, kidneys, intestines, pancreas and spleen. The most severe lesions were in the gills and renal tissues. In infected sea bream, there were extensive hyperplasia, fusion of secondary lamellae, increased bacterial load and lacunae formation in the gills with Amoeba-like organism.