Gilt-head sea bream is one of the most farmed marine fish in the Mediterranean. Welfare challenges in cage and intensive recirculating systems affect millions of fish annually.
Gilt-head sea bream welfare suffers from the same systemic gaps as Atlantic sea bass in Mediterranean aquaculture - limited welfare oversight, absence of pre-slaughter stunning requirements, and extended pre-harvest fasting. The fish's aggressive nature creates additional challenges: crowded systems with established dominance hierarchies create chronic stress for subordinate individuals who cannot access resources freely. Pre-slaughter fasting lasting up to 10 days - used to empty guts before processing - causes prolonged hunger stress whose welfare cost is routinely treated as commercially necessary rather than ethically problematic. Consumer pressure in European markets is the primary mechanism available for driving welfare improvement in Mediterranean sea bream production.