Damning testimony from the crew of one longline tuna-fishing boat has lifted the lid on the treatment of workers in the fleets supplying fish to the UK and EU

Abdul was the first to fall sick, in February 2025, four months into his first ever stint on a longline tuna fishing vessel in the Indian Ocean. Told he was “weak” and “overreacting” by other crew members, he forced himself to keep working, even when he could barely stand, his legs swollen and bruised.

In the months that followed, other crew members of the Tai Xiang 5, a Chinese vessel belonging to Shandong Zhonglu Oceanic Fisheries, a large state-owned fishing company, allegedly began to suffer similar symptoms: swollen, painful limbs and debilitating weakness, with some becoming very short of breath. They were offered no proper medical care, claims Abdul, 36, nor rest from the gruelling 16-hour days, for which they earned 4.6m Indonesian rupiah (about £198) a month.