I don't know what would happen in 40 to 100 years. Salmon do live in the cold water, except that they go off Greenland and go into deeper water where it's not so cold. They just have that period of time. It's an artificial situation to be coaxing them in cold water, of course. Coaxing is a farming operation, so it's not wild. The industry is constantly doing genetic selection to improve production.
I'm just speaking personally that I feel all genetic technologies could be used. It's a good idea to use genetic processes to improve the production of animals for food. So any technique that can be invented, and more neurotechniques.... This is an old technique now. More techniques will come into play.
I have colleagues at Memorial University who are genomicists, and they're constantly working on which genes are turned on and off by stress, diseases, and ultimately, they will modify the egg even if it's only done by broodstock selection. You're certainly going to change the genetics of the populations, to some extent, in the culture system.
I'm not an expert on this area. As I said, I go back 30 years, and I had a particular set of tools and there was an interest in trying to improve the production in the Atlantic provinces. We saw this as an idea. I had no idea it would get to this length. I still think it was a good idea.