Right now, if you are growing a lot of fish, there are impacts on the surrounding environment. For finfish—salmon, trout, halibut—we prefer to see closed containment, because that has a number of advantages in terms of waste, antibiotics, and sea lice. We have companies in Nova Scotia that are moving in this direction, and I am very happy to buy their product.
With GMOs, if it happens once, that's it. Then that trait.... It's like the first ship that brought zebra mussels into the Great Lakes. In an aquatic system, you can't get those zebra mussels back into the ship. You can't round them up.
Aquatic systems pose unique challenges.