In just fifty years, wild Atlantic salmon populations have collapsed by 75%, with fewer than 60,000 remaining in and around Iceland—a crisis that Patagonia founder Yvon Chouinard warns could push the "king of fish" toward extinction if the Icelandic parliament passes new legislation expanding open-net salmon farming.
The proposed bill arrives at a critical juncture. Climate change already poses a mortal threat to wild salmon through warming ocean waters, and adding industrial fish farms would accelerate their decline even faster. Yet Chouinard, who has visited Iceland regularly since 1960, argues that ordinary Icelanders understand what's at stake: more than 65% of those polled oppose the expansion of open-net salmon farming, according to new polling data.
The mechanics of industrial salmon farming reveal why public opposition runs so deep. Each farm consists of massive floating cylindrical cages stretching 30 to 50 meters below the water's surface, with individual farms sometimes holding 16 pens containing 100,000 salmon or more. Feeding these vast numbers of carnivorous fish requires millions of pounds of food made from fishmeal and oil sourced from wild populations—decimating stocks of sardines, herring, and other species to sustain operations that simultaneously poison the waters they occupy with heavy metals, microplastics, pesticides, antibiotics, and waste.
The problem extends beyond pollution. Salmon lice infestations in farms trigger feeding frenzies that devastate captive populations and affect wild salmon up to 60 kilometers away, particularly weakening vulnerable young fish. Chemical treatments meant to kill the lice or prevent molting can harm lobsters, crabs, and other crustaceans downstream. When farms collapse—as happened in Iceland in 2023 and Washington state in 2017, releasing tens of thousands of farmed fish into the wild—the consequences cascade through ecosystems. Escaped farmed salmon, bred to be docile and to fatten quickly, can overwhelm wild counterparts in competition for food and habitat. Should they interbreed, generations of wild evolution become undone by the introduction of blunted genes into highly adapted wild populations. That 2017 Washington collapse was so catastrophic that the state subsequently passed a law to phase out open net-pen salmon farming entirely. Yet Iceland's latest aquaculture bill does little to prevent similar disasters from recurring.
The economic argument against expansion is equally compelling. Iceland's tourism industry employs more than 34,000 people and depends entirely on the nation's reputation for pristine natural beauty and healthy wildlife populations—economic value that dwarfs the employment footprint of industrial aquaculture. Chouinard's central appeal is straightforward: "Icelandic ministers can listen to reason and citizens and set an example of responsibility, rather than giving in to the worldwide aquaculture industry."
This is not merely a local concern. Pollution and harm from these farms flow into other ecosystems, affecting species and communities far beyond Iceland's borders. Opposing industrial aquaculture represents a rejection of nature-destroying development and active protection of a keystone species whose survival is intertwined with the health of entire ocean systems. The choice before Iceland's parliament is clear: profit from a shrinking industry that destroys the natural foundation of a much larger one, or protect the wild salmon and the waters that sustain them.