dr. devlin first told me that these fish were the same age, i was blown away. almost didn't believe him. i can see why this would be more economical for a would be gm salmon farmer. they get big faster in half the time. >> one, they waste almost no food. their behavior is so strong to acquired food resource there is very little waste. so for any amount of food taken in, they will grow about 15 to 20% larger. >> reporter: the haines family has been at sea for five generations. now counting their newest crew member but no matter how hard this family works they can't keep up with the world 's appetite for salmon. >> we need a million more pounds of this. >> reporter: why do we need more fish? two-thirds of the salmon caught in the united states is not caught but farmed in chile,ed in and norway. we eat a lot of salmon. most ly atlantic salmon. according to noah, the the atlantic salmon is designated and an endangered species. >> so if americans want it on their plates it's coming from a farm. the idea of the work behind the lab is to feed the planet and potentiall