In aquaculture, the interactions and balance—or imbalance—between the fish, the rearing environment, pathogens, and farm management determine the occurrence and impact of clinical diseases. The global assessment of the factors related to disease impact is commonly referred to as disease burden. This assessment goes beyond the economic consequences of mortality and morbidity, encompassing additional economic factors related to...

Following the intensification of the Mediterranean aquaculture over the years, Sparicotyle (syn. Microcotyle ) chrysophrii (van Beneden and Hesse, 1863; Microcotylidae, Monogenea) became one of the most pathogenic ectoparasites for the gilthead seabream ( Sparus aurata L.) aquaculture. It has demonstrated a remarkable versatility to expand over its known host range, accomplish an efficient transfer between the wild and farmed...