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Large fishing boats use voluminous trawl nets, longlines miles in length, and other industrial gear to catch fish on the high seas, which can destroy habitats and kill other sea life. Christopher Costello/NPR hide caption

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Christopher Costello/NPR

Fish market workers in Jersey City, N.J., prepare a bluefin tuna for shipment to some of New York's top sushi restaurants. Emmanuel Dunand/AFP/Getty Images hide caption

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Emmanuel Dunand/AFP/Getty Images