In the present study, totally isopod infection in all infected fishes were 34.19%. The occurrence of L. parsia was 25%, T. dussumieri was 36%, S. albella was 17.5% and O. cuvieri was 65%. The total of infection affected by Nerocila sp. was 17.41% and Cymothoa sp. was 16.77%. The Livoneca redmanni affected the Brazilian coastal waters the prevalence was5.9%