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Articles by Casson Trenor

Casson Trenor is the author of Sustainable Sushi: A Guide to Saving the Oceans One Bite at a Time, designed to enable consumers concerned about environmental and health issues to dine with confidence at the sushi bar. He also owns and maintains Sustainable Sushi, a popular blog and reference website concentrating on sushi and ocean conservation.

Featured Article

Cross-posted from Sustainable Sushi.

Seafood isn’t only sold in the seafood section. Americans buy a tremendous amount of our seafood from the shelves of our local grocer rather than from the freezers, including one particular item that we put in everything from sandwiches to casseroles to salads: tuna fish.

For decades, tuna was the most widely consumed seafood product in the United States. Although it has recently lost pole position to farmed shrimp, it is still massively popular, and even though it’s in a can, it is still fish, and thus merits scrutiny in terms of sustainable practices — or, in this case, its total lack thereof.

Here’s the issue: Catching tuna in a manner that keeps the price hovering around $1-$2 per can is difficult. It’s a challenging process for a number of reasons, not least of which is that most species of tuna are constantly on the move across the vastness of the open ocean. Chasing these schools around is a time- and resource-intensive process — especially with oil prices on the perpetual upswing — but the tuna industry has found a way to cut some pretty significant corners. ... Read more