Last November the sushi world was struck with some bitter news: the Pacific bluefin tuna was placed on the International Union for Conservation of Nature and Natural Resources’ (IUCN) Red List of Threatened Species. While not considered endangered like its close relatives, the Atlantic and Southern bluefin tuna, it has been proclaimed as a vulnerable species.
Bluefin tuna is considered the best of the best, its tender red meat is coveted by sushi chefs and sushi consumers alike. But what will happen if the Pacific bluefin becomes extinct? Foreseeing a future of sushi connoisseurs being forced to eat tuna-shaped cakes or playing with tuna models to try to get their bluefin fix, scientists have come up with a radical new idea: use mackerel to breed bluefin tuna.