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03/18/2010 05:12 am ET | Updated May 25, 2011

Bok Choy: The Solution To Overfishing?

"Just think of this as a gourmet wastewater facility," said Kevin Ferry, tearing off a romaine leaf and stuffing it into his mouth. I'd [Barry Estabrook] come to Cabbage Hill for a firsthand look at a form of food production that offers a promising alternative to traditional aquaculture. Called aquaponics, it is a variation on hydroponics, with a sustainable twist.

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