Mugil cephalus is an important food fish species which can be found in coastal tropical and subtropical waters worldwide. M. cephalus has been farmed for centuries in extensive and semi-intensive ponds in many countries and recently has been considered a promising species for aquaculture diversification. However, many behavioural aspects are yet to be fully understood, namely home range, migration, aggregation, aggression, malformations, and slaughter. Addressing these issues may improve the farming and welfare conditions.