Dr. Kevan Main is a global pioneer in aquaculture, often called seafood farming but encompassing much more. Want to know how much of your seafood is farmed? Curious about whether farmed fish are good for you and the environment? Main shares ideas and stories about aquaculture done right — using improved technology to make this rapidly growing practice more sustainable and economically sound. Beyond simply farming fish, Main is studying how to raise fish together with salt-tolerant "sea vegetables" in a practice called marine aquaponics, and the results are tasty.