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Study warns against fish farmers switching to plant-based feed

The move can come with environmental, human health costs, researchers warn.

A new study suggests plant-based aquaculture feeds may negatively impact the environment as well as make for a less healthy meal as it could reduce the amount of omega-3s in the fish, according toCBC News.

The plant-based ingredients "then have to come from somewhere and as it gets to a larger and larger scale, then that environmental footprint gets quite large," said Jillian Fry, director of the Public Health and Sustainable Aquaculture Project at Johns Hopkins University, who contributed to the study recently published in Environment International journal, according to the news site.

"Aquaculture's environmental footprint may now include nutrient and pesticide runoff from industrial crop production, and depending on where and how feed crops are produced, could be indirectly linked to associated negative health outcomes," stated the study.

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