| abstract |
A composition in the form of an aqueous solution comprising a photosensitizer for use in a photodynamic therapy method, for an infection by external crustacean parasites in salmonid fish, said infection by external crustacean parasites comprising an infection by salmon lice, Lepeophtheirus salmonis , Caligus rogercresseyi and Caligus spp. Said photosensitizer is curcumin or a pharmaceutically acceptable derivative thereof, and said photosensitizer is administered in a bath treatment of salmonid fish in need of said treatment, and the salmon lice are illuminated with the light. |