On 10 June 2026, Peru suspended all anchoveta fishing off its north-central coast. By mid-August, the suspension became a total closure. The trigger: a developing super El Niño that global climate models forecast as the most severe since the 1880s. Climatologist Zeke Hausfather warned in July that the event "may end up the strongest by a truly mind-blowing margin." With only 24% of the 1.9 million tonne quota harvested before the shutdown, Peru's fishing sector faces a 30.7% contraction and roughly 78,000 job losses in 2026, with another 44,000 projected for 2027. The anchoveta is not the Mediterranean anchovy on your pizza. It is a 15cm industrial fish, more than 90% of which is immediately processed into fishmeal and fish oil. These products underpin global aquaculture, factory farming, and nutritional supplement production. Peru is the world's largest fishmeal exporter by a wide margin, producing about 20% of global supply in an average year. When Peru's anchoveta catch disappears, there is no substitute supplier of equivalent scale. The underlying mechanism is elegant and brutal. The Humboldt current, flowing north along Chile and Peru, drives massive upwellings of cold, nutrient-rich deep water that create the most biologically productive fishing grounds on Earth. El Niño disrupts this system. Warmer surface waters suppress the upwelling, starving the plankton that anchoveta feed on, collapsing the base of the food chain. The anchoveta population was already declining before the shutdown — recent annual catches of 2-4 million tonnes are a fraction of the 12 million tonne peak in 1970. This is not a new story. The anchoveta fishery has crashed repeatedly: an 88% collapse in 1973, a drop to under 100,000 tonnes in 1984, a recovery to 9.6 million tonnes in 2000, and a steady decline since. Each crash results from the same toxic combination — industrial overfishing eroding the stock's resilience, then El Niño delivering the knockout blow. The 1973 collapse was severe enough to force Peru's military dictatorship to introduce the first regulatory regime for the fishery. The global transmission mechanism is straightforward: Peru's fishmeal disappears, prices skyrocket, aquaculture and livestock operations worldwide face sharply higher feed costs, and those costs pass through to consumers. The closure will have a direct impact on jobs, food supplies, and supermarket prices globally. Peru's production minister César Quispe Luján defended the decision on conservation grounds, arguing the government must "act with prudence and responsibility to ensure the sustainability of the fishery." What makes this moment structurally different is the forecasted severity of the El Niño. Previous super El Niños (1982-83, 1997-98) devastated the fishery for years. If this event is indeed the strongest on record, recovery timelines become deeply uncertain. The Instituto del Mar del Perú, which recommended the closure, has hinted there may be no second fishing season this autumn. The question is not whether the fishery will recover, but how long it takes — and whether a global food system built on a single ocean current can absorb a multi-year disruption. The deeper structural problem is one of concentration risk masquerading as efficiency. A tenth of the entire global commercial fishing catch, by weight, has come from a single species off a single coast since 1970. The world's aquaculture and livestock industries built their supply chains around this abundance without building redundancy. When the Humboldt current delivers, the system works beautifully. When it doesn't, there is no Plan B at scale.
