Swordfish, shark, tilefish, fresh tuna steak, and king mackerel are the main culprits.

剑鱼、鲨鱼、方头鱼、新鲜的金枪鱼排和鲭鱼是罪魁祸首。

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Do not eat shark, swordfish, king mackerel, or tilefish (also called white snapper), because they contain high levels of mercury.

不要吃鲨鱼、旗鱼、青花鱼或方头鱼（也称白鲑鱼），因为它们含有大量的水银。

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Such as tilefish, swordfish, shark, king mackerel.

比如说方头鱼、旗鱼、鲨鱼、鲭鱼。

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Tilefish and king mackerel are two such fish, and both were sold to consumers who believed they were procuring red snapper and halibut respectively.

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Larger fish such as shark, king mackerel, swordfish, and tilefish tend to be highest in mercury because they eat smaller fish and consume the mercury in them as well.

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The agency warns, however, that pregnant and breast-feeding women shouldn't eat swordfish, tilefish, shark, or king mackerel and should limit consumption of white, albacore tuna, a commonly canned variety.

WSJ: Guidelines for Eating Sustainable Seafood