Got plans for World Oceans Day on June 8? You might celebrate by visiting your favorite place for a spicy tuna roll. Or maybe halibut, salmon, or red snapper sushi. 

But, is what you’re served the fish you ordered?

If you’re in Los Angeles—and likely many other cities around the globe—it’s a flip of the coin.

Dybas, C.L. 2017. Ripple marks—The story behind the story. Oceanography 30(2):12–14, https://doi.org/10.5670/oceanog.2017.206.

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