Fresh tuna tossed on the grill or rolled into sushi is so much in demand that prices have followed.

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So if kept very clean and very cold and handled with care, fresh tuna can be enjoyed medium rare, rare or even raw.

CNN: Tuna making a splash in popularity

Golden Osetra caviar perfected Big Eye Tuna atop fresh bergamot and a froth of green apple.

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It seems likely that a fresh attempt to list bluefin tuna will have to wait until the next CITES meeting in three years time.

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Two years on you can dine on fresh sea urchin roe and quivering tuna belly at the izakaya and sushi restaurant Kushi, and around the corner is the Passenger, an artisan cocktail bar that hosts private tasting menu events.

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This diet was supplemented with fresh fish caught as they traveled, including tuna and shark.

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In the historic church building you will find fishmongers peddling whole salmon, giant chunks of tuna, cod fillets, langoustines, crawfish, fresh crabs, pickled herring and anything else that once swam or scurried across the ocean floor.

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Try the homemade breads and fresh soups such as the tomato apple (with roasted Fuji apples and carrots) and seared tuna salad.

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The FSA surveyed 336 fresh, frozen and processed sea fish and shellfish for mercury content, including trout, salmon, tuna, halibut, hoki, sea bass, lobster, mussels and prawns.

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