Why a Tiny Island Created the Biggest Marine Sanctuary in the South Atlantic
Like most places, the British Overseas Territory of Tristan da Cunha is a community made up of teachers, accountants, mechanics, and grocers. But here, on the most remote inhabited island on earth, the weather has a funny way of rearranging the professional landscape.
“We have two dong-ringers that have a look at the weather, and if they think it’s a suitable day, they’ll ring the dong hanging in the middle of the village,” says James Glass, who serves as Chief Islander, an elected community leader. “It’s actually an empty gas cylinder.” Between 40 and 60 days a year, at about 4:30 in the morning, tinny claps engulf the small village of Edinburgh of the Seven Seas, population 254. The tolls echo off a 2,000-meter cliff at the village’s north end, rousing Tristanians with news of a placid ocean, and an island-wide shift in occupation.
“Plumbers, electricians, carpenters,” says Glass, “on that day, they’re all fishermen.”
Human life on this tiny volcanic island in the middle of the South Atlantic Ocean is intimately tied to the populations of spiny lobsters that populate its surrounding waters. No one knows this better than Tristanians themselves, which is why they recently joined the UK’s Blue Belt Programme—which aims to protect 30 percent of the world’s oceans by 2030—in establishing what is now the fourth largest Marine Protected Zone (MPZ) in the world.
Some 700,000 square kilometers of Tristan’s surrounding waters (an area about three times the size of the UK itself) are now a wildlife sanctuary, off-limits to any extractive activities. It’s a boon to the UK’s bold campaign and a win for oceanic health, but for an island without a landing strip, the move spells further isolation for an already superlatively remote community: The steady stream of fishing charters from Cape Town—which have long served as one of Tristan’s primary connections to the mainland—are no longer viable under the MPZ. To those of us on the mainland, it may seem like a difficult decision to have made, but on Tristan da Cunha, the wellbeing of the spiny lobster is paramount.
The spiny lobster is more than this island’s cash cow. The Tristan da Cunha coat of arms is framed by two spiny lobsters, or what’s known locally as crawfish. They’re a slightly smaller, clawless cousin of the Maine lobster commonly eaten across North America and Europe, but they play an outsized role in the lives of Tristanians. The catch and sale of these lobsters accounts for 80 percent of the island’s revenue, according to Glass, employing 140 men and women on each fairweather day. “Just about every household on Tristan receives some income from fishing, directly or indirectly,” he says.
All told, an island smaller than the city of Boston will alone export 420 tons of lobster each year, which end up in markets from Australia to Japan to France. “We’ve got more markets than we’ve got fish,” says Glass. Without a surfeit of alternative streams of income, however, stock management is critically important.
Michael Marriott is a Program Manager with the Marine Stewardship Council (MSC), an independent organization that sets a standard for sustainability in fisheries worldwide. He says nearly all MSC-certified fisheries have some conditions attached to their certification, indicating room for improvement in either stock population, extraction protocols, or environmental impact. Tristan, on the other hand, has no conditions. “The rock-lobster fishery in Tristan is scoring best practices or above in all 28 of our indicators, which is quite something. It’s rare for a fishery to have none,” says Marriott. “When you’re that remote, I think you become acutely connected to the environment you live in—you tend to be more aware of your vulnerabilities.”
Glass concurs. As an oceanographer, he’s studied fisheries in 16 different countries. He says Tristanian fishing stands alone in its approach to extraction: “The general attitude [elsewhere] is ‘If I don’t catch it, someone’s gonna come behind me and catch it, so I may as well take it out.’ But here it’s quite different, because the fishery is so important to Tristan.”