“…In intensive fish farming, managing and controlling helminth infections pose a constant challenge, since these tasks are greatly complicated by the limited availability of licensed anthelmintic drugs (Morales‐Serna et al, ; Zuskova et al, ) with varying degrees of effectiveness. Anthelmintic drugs such as albendazole, mebendazole, ivermectin, levamisole and praziquantel have been employed for the control and treatment against monogenean parasites that infest farmed fish (Hirazawa, Akiyama, & Umeda, ; Hirazawa, Ohtaka, & Hata, ; Kim & Choi, ; Martins, Onaka, Moraes, & Fujimoto, ; Morales‐Serna et al, ; Onaka, Martins, & Moraes, ; Santamarina, Tojo, Ubeira, Quinteiro, & Sanmartin, ; Sitjà‐Bobadilla, Felipe, & Alvarez‐Pellitero, ; Zhang et al, ). Parasite infections can be controlled and treated by eliminating developmental stages in hosts, thus interrupting the life cycle of parasites (Bader, Chelladurai, Starling, Jones, & Brewer, ).…”