Three herbivorous fish were farmed by freshwater, while mercury in Bighead carp and Bluntsnout bream were higher than Grass carp.

草食性的三种鱼类均为淡水养殖，团头鲂与鳙鱼的含量显著高于草鱼。

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"I would be very interested to explore the fish data more thoroughly, subdividing by herbivorous and carnivorous groups as we have done for the dinosaurs, " O'Gorman told LiveScience.

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