Mebendazole dietary supplementation controls Monogenoidea (Platyhelminthes: Dactylogyridae) and does not alter the physiology of the freshwater fish Colossoma macropomum (Cuvier, 1818)

Colossoma macropomum commonly known as tambaqui or cachama is one of the most native farmed characid fish in South America. North of Brazil has the main tambaqui production, however obstacles interfere in the fish health like ectoparasites. Besides the best management practices, alternative treatments must be pointed out to keep the homeostasis of the host under parasite infestation. This study focused the treatment of monogenean helminth parasites in the gills of C. macropomum and its effects on the hematological parameters and plasma ions.