There are rules banning fishing fleets from taking undersize tuna out of the Mediterranean, but none that prevent catching immature tuna and fattening them in floating pens.

• 法规禁止渔业船队把体型不足的鲔鱼带离地中海，但没有禁止捕捉未成熟的鲔鱼、在漂浮围栏里把牠们养肥。