A bear-sized bluefin tuna has been sold at a Tokyo market for ¥207 million ($1.3 million), boasting enough fishy flesh to create a sashimi platter that could satisfy an entire school of sharks.

Europol have coordinated an international operation with authorities from France, Italy, Malta, Spain and Portugal to arrest 79 individuals for their involvement in Europe’s bluefin tuna market.

Some estimates suggest that the market does more than $4 billion in business per year. The tuna in the market is delivered from all over the world frozen or on ice less than 24 hours after being ...