None commonly used
The Blue Shark is unmistakable — sleek, slender, and elegant, with a vibrant deep blue back fading to lighter blue along its sides and a bright white belly. It has long, pointed pectoral fins and a distinctive, slim, torpedo-shaped body designed for swift movement through open waters.
Blue Sharks are highly migratory, found across the world’s temperate and tropical oceans. Around the UK, they are seen most commonly off the southwest coast, particularly Cornwall, during the summer months when they migrate closer to shore in search of food. They are usually found far offshore, favouring deep, open waters.
Sustainability Rating
Status: Blue Sharks are classified as Near Threatened globally due to overfishing, mainly as a result of bycatch in tuna and swordfish fisheries.
Best Choice: At present, Blue Shark is not considered a sustainable seafood choice.
Avoid: Avoid consumption entirely where possible, as stocks are under pressure and targeted fishing can be unsustainable.
Culinary Uses
Although Blue Shark has been used historically for steaks, soups, and smoked dishes, it is rarely recommended for eating today due to sustainability concerns.
The flesh is mild-flavoured but tends to spoil quickly, requiring immediate and careful preparation if used.
Alternatives such as Pollack or mackerel provide more sustainable options for similar robust cooking methods like grilling or roasting.
Best Fishing Practices
Catch-and-release recreational fishing is encouraged rather than harvest.
Targeted commercial fishing for Blue Sharks is discouraged without strict management measures.
Reducing bycatch in tuna and swordfish fisheries is key to their long-term survival.
Seasonality
Sightings in UK waters peak during the summer months, particularly from June to September.
Not typically available or recommended in fish markets or restaurants focused on sustainability.
The Importance of Protecting Blue Sharks
As graceful apex predators, Blue Sharks play a critical role in maintaining the balance of marine ecosystems.
Choosing to avoid unsustainably sourced shark products supports wider efforts to protect vulnerable shark populations worldwide. Sustainable seafood choices help ensure the health of our oceans, and allow magnificent species like the Blue Shark to continue to thrive offshore.
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