It was estimated at one point that Dwayne "The Rock" Johnson ate upwards of 821 pounds of cod per year. He's certainly an outlier, but as global demands for seafood increase, fish farms are rising to meet that challenge, with the aquaculture market projected to reach $219.42 billion by 2022. Already, half the seafood eaten in the U.S. is farmed, and a startup called Aquabyte is using machine learning and computer vision to make those farms more efficient and productive.