Greenland Shark Cull Debate: Fishing Industry vs Conservation 2026

The Greenland shark, the world's slowest shark, is at the center of a heated debate in Greenland as fishers demand action to protect their livelihoods from costly bycatch. For decades, these ancient creatures have been an unwanted nuisance for halibut fishers, but now the question of whether to cull them has sparked controversy.

The Greenland Shark: A Mysterious Giant

The Greenland shark (Somniosus microcephalus) is one of the least understood species on the planet. It is the second-largest carnivorous shark after the great white, reaching lengths of six to seven metres. These sharks can live for more than 400 years, making them the longest-living vertebrates known to science. They inhabit the deep, cold waters of the North Atlantic, where they feed on fish such as Greenland halibut and Atlantic cod.

Fishers' Frustration: The Cost of Bycatch

For fishers like Henrik Jensen, who has fished for halibut off Ilulissat for a decade, the sharks are more than a nuisance—they are a threat to their livelihood. "When I accidentally catch a shark, I bring it to my dogs," Jensen says. "I don't let it back down because [the sharks] bully me and cut my lines." This year alone, Jensen estimates he has lost around 6,000 hooks, with daily losses sometimes reaching 30,000 Danish krone (£3,440). The sharks are attracted to the halibut and cod caught in fishing gear, often becoming entangled and damaging equipment. The background to this story is set out in Super El Niño Devastates Peru's Anchoveta Fishing Industry. A related thread runs through Sharks in Australia: Fear Threatens Conservation Progress. Earlier coverage in Hedge Laying: Ancient Craft for Modern Farm Conservation shows how the argument developed.

The Culling Debate: Conservation vs Livelihoods

The idea of culling Greenland sharks has gained traction among some fishers, but conservationists warn that such measures could be devastating for a species that is already vulnerable. The sharks are listed as near threatened by the IUCN, and their slow reproduction rate makes them particularly susceptible to overfishing. A cull could disrupt the marine ecosystem and undermine decades of conservation efforts. A closer look at the same subject appears in Wildlife Recorders: Unsung Heroes of Local Conservation. Anyone following the wider picture can start with Butterfly Beauty Bias Threatens Dull Species Conservation. The same theme surfaces in Cambodia's Siamese Crocodile Conservation Area Saves Species, which takes a different angle.

Key Takeaways

• The Greenland shark is the world's slowest shark and can live over 400 years.
• Fishers lose thousands of hooks and significant income due to shark bycatch.
• Conservationists argue that culling would harm a near-threatened species.
• Alternative solutions like modified gear and repellents are being explored.

Comparing Perspectives on the Greenland Shark Debate

Possible Solutions: Beyond Culling

Instead of culling, experts suggest a range of alternatives. Modified fishing gear that reduces shark entanglement, such as hooks with repellent coatings or acoustic deterrents, could help. Additionally, establishing shark-safe zones or seasonal closures might protect both the sharks and the fishers' catch. Research into shark behavior could also lead to more effective avoidance strategies. Context on how this played out before sits in Fishing: latest articles. A companion piece, Protected US Sharks Sold to Foreign Aquariums: Delaware Bay Crisis, approaches the same subject from another angle.

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