Forced labour, disease and conflict: The hidden side of industrial fishing in Saya de Malha

France 24

14-05-2025

In October 2022, a British-American couple, Kyle and Maryanne Webb, were sailing their yacht through a remote area of the Indian Ocean between Mauritius and Seychelles, just south of the Saya de Malha Bank, the world's largest seagrass field. The Webbs were sailing enthusiasts and had covered tens of thousands of miles on their vessel, the Begonia, over the previous years. As they passed the bank, they spotted a small fishing vessel, about 55 feet in length, painted bright yellow and turquoise, with about a dozen red and orange flags billowing from the roof of its cabin. It was a Sri Lankan gillnet boat called, in Sinhali, the Hasaranga Putha.
Looking gaunt and desperate, the crew told the Webbs that they had sailed roughly 2,000 miles from their home port, in Beruwala, Sri Lanka. They had been at sea for two weeks, they said, but had only caught four fish. They begged the Webbs for food, soda and cigarettes. The Webbs gave them what they could, including fresh water, then headed on their way. "They were clearly in a struggling financial position, "Mrs. Webb said. "It broke my heart to see the efforts they feel they must go to provide for their families."
A month later, again near the Saya de Malha Bank, the Hasaranga Putha hailed another vessel – the South African ocean research and supply ship, S.A. Agulhas II, who was on an expedition in Saya de Malha for the environmental non-profit Monaco Explorations. By this time, the Sri Lankan crew was almost out of fuel and begged for diesel. The scientists did not have the right type of petrol to offer but they still boarded a dinghy and brought the fishers water and cigarettes. Grateful, the Sri Lankans gave them fish in return. The Hasaranga Putha would remain at sea for another six months before returning to Colombo in April 2023.
A perilous journey
Hundreds of miles from the nearest port, the Saya de Malha Bank is one of the most remote areas on the planet, which means it can be a harrowing workplace for the thousands of fishers from a half dozen countries that make the perilous journey to reach it. The farther from shore that vessels travel, and the more time they spend at sea, the more the risks pile up. Dangerous storms, deadly accidents, malnutrition, and physical violence are common threats faced by distant-water crews. Each year, a fleet of several dozen Sri Lankan gill-netters makes some of the longest trips made to the area, often in the least equipped boats.
Some of the vessels that fish the Saya de Malha Bank engage in a practice called transshipment, where they offload their catch to refrigerated carriers without returning to shore, so that they can remain fishing on the high seas for longer periods of time. Fishing is the most dangerous occupation in the world, and more than 100,000 fishermen die on the job each year. When they do, particularly on longer journeys far from shore, it is not uncommon for their bodies to be buried at sea.
Sri Lankan gillnetters are not the only fishing vessels making perilous journeys to reach the rich and biodiverse Saya de Malha Bank. Thai fishmeal trawlers also target these waters, traveling more than 2,500 nautical miles from the port of Kantang. In January 2016, for example, three Thai trawlers left the Saya de Malha Bank and returned to Thailand. During the journey, 38 Cambodian crew members fell ill, and by the time they returned to port, six had already died. The remaining sick crew were hospitalised and treated for beriberi, a disease caused by a deficiency of Vitamin B1 or thiamine. Symptoms include tingling, burning, numbness, difficulty breathing, lethargy, chest pain, dizziness, confusion, and severe swelling.
Easily preventable, yet fatal if left untreated, beriberi has historically appeared in prisons, asylums, and migrant camps, but it has largely been stamped out. Experts say that when it occurs at sea, beriberi often indicates criminal neglect. One medical examiner described it as "slow-motion murder" because it is so easily treatable and avoidable.
The disease has become more prevalent on distant-water fishing vessels in part because ships stay so long at sea, a trend facilitated by transshipment. Working practices involving hard labour and extensive working hours cause the body to deplete vitamin B1 at a faster metabolic rate to produce energy, the Thai government concluded in a report on the deaths. Further research by Greenpeace found that some of the workers were victims of forced labour.
Crime on the high seas
Today, fewer vessels from the Thai fleet are traveling to Saya de Mahla, but some still make the trip, and questions about their working conditions linger. In April 2023, one of those vessels, the Chokephoemsin 1, a bright blue 90-foot trawler, set out for the Saya de Malha Bank with a crew member named Ae Khunsena, who boarded the ship in Samut Prakan, Thailand, for a five-month tour, according to a report compiled by Stella Maris, a non-profit organisation that helps fishers. As is typical on high-seas vessels, the hours were long and punishing. Khunsena earned 10,000 baht, or about $288, per month, according to his contract.
In one of his last calls to his family through Facebook, Khunsena said he had witnessed a fight that resulted in more than one death. He said the body of a crew member who was killed was brought back to the ship and kept in the freezer. When his family pressed for details, Khunsena said he would tell them more later. He added that another Thai crew member who also witnessed the killing had been threatened with death and so he fled the ship while it was still near shore along the Thai coast. Khunsena's family spoke to Khunsena for the last time on July 22, 2023. A company official contested this claim and said no such fight happened and added that there was an observer from the Department of Fisheries aboard the vessel, who would have reported such an incident had it happened.
On July 29, while working in waters near Sri Lanka, Khunsena went overboard, off the stern of the ship. The incident was captured on a ship security camera. A man listed as Khunsena's employer on his contract named Chaiyapruk Kowikai told Khunsena's family that he had jumped. The ship's captain then spent a day unsuccessfully searching the area to rescue him, before returning to fishing, Kowikai said.
The vessel returned to port in Thailand roughly two months later. Police, company and insurance officials eventually concluded that Khunsena's death was likely a suicide. This claim seemed to be backed up by the onboard footage, which did not show anyone near him when he went over the side of the boat.
In September, 2024, a reporting team from the Outlaw Ocean Project visited Khunsena's village. Settled by rice farmers about a century ago, Non Siao is located in Bua Lai District, Nakhon Ratchasima, roughly two hundred miles to the northeast of Bangkok. The reporting team interviewed Khusena's mother and cousin as well as the local labour inspector, police chief, aid worker and an official from the company that owned the ship. While the police and company officials said the death was likely a suicide, Khusena's family avidly disagreed. "Why would he jump?" said Palita, Khunsena's cousin, explaining why she highly doubted that Khusena took his own life. "He didn't have any problems with anyone." Sitting on the ground under an overcast sky as she spoke with the reporter in a follow-up conversation by video chat, Palita went silent and looked down at her phone. "He wanted to see me," added Khusena's mother, Boonpeng Khunsena, who also doubted his suicide, since he kept saying in calls that he intended to be home by Mother's Day. His family instead speculated that Khusena had likely witnessed a violent crime and therefore to silence him, he had been coerced to jump overboard.
As is often the case with crimes at sea, where evidence is limited, witnesses are few and frequently unreliable, it is difficult to know whether Khusena died due to foul play. Perhaps, as his family speculated in interviews with The Outlaw Ocean Project, he had witnessed a violent crime and, consequently, had been forced to jump overboard. Perhaps, instead, he jumped willingly from the ship, a suicidal gesture likely driven by depression or mental health issues. In either scenario, the point remains the same: these distant-water ships are traveling so far from shore that the working and living conditions are brutal and sometimes violent. And these very conditions are likely playing a role in sinister outcomes.
A transit route for migrants
And yet, the human tragedy that criss-crosses this remote patch of high seas is not just tied to fishers. The Saya de Malha Bank has also become a transit route for migrants fleeing Sri Lanka. Since 2016, hundreds of Sri Lankans have attempted to make the perilous journey on fishing boats to the French-administered island of Reunion, in the Indian Ocean, some making the journey directly from Saya de Malha. Those who do succeed in making landfall on Reunion are often repatriated. In one case, on December 7, 2023, a Sri Lankan vessel that had spent the previous three months fishing in Saya de Malha, the Imul-A-0813 KLT, illegally entered the waters around Reunion. The seven crew members were apprehended by local authorities and repatriated to Sri Lanka two weeks later. Joining them on the repatriation flight were crew members of two other Sri Lankan fishing vessels that had previously been detained by Reunion authorities.
With near-shore stocks overfished in Thailand and Sri Lanka, vessel owners send their crews further and further from shore in search of a worthwhile catch. That is what makes the Saya de Malha – far from land, poorly monitored, and with a bountiful ecosystem – such an attractive target. But the fishers forced to work there live a precarious existence, and for some, the long journey to the Saya de Malha is the last they ever take.
This article was written by Ian Urbina, Maya Martin, Joe Galvin, Susan Ryan, and Austin Brush - Editors at The Outlaw Ocean Project.
The Outlaw Ocean Project is a non-profit journalism organisation based in Washington DC that produces investigative stories about human rights, labour and environmental concerns on the two thirds of the planet covered by water. The organisation is run by Ian Urbina, an award-winning journalist who used to work for The New York Times.