海洋鱼类中的汞含量也很高——尤其在体型较大的鱼类体内，如鲨鱼、金枪鱼和旗鱼。

Mercury levels are high in marine fish, too—particularly in larger species, such as shark, tuna, and swordfish.

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然而，许多鱼类，如鲨鱼，鲶鱼，旗鱼和海鳟，含有近三分之一脂肪，而鲑鱼和橘棘鲷（红鱼）则超过50％。

However, many fish, such as shark, catfish, swordfish, and sea trout, contain almost one-third fat, while salmon and orange roughy contain over 50%.

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旗鱼是海洋中最美丽、最优雅的鱼类之一。

Sailfish are one of the most beautiful and graceful fish in the sea.

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