There are lots of studies and computer modelling on the impact of releasing some of the GE fish into the environment by accident. We could have an entire committee hearing on this one, and I invite you to do so, maybe later.
But some of the experts predict that even the release of only a few non-sterile GE fish in very limited or specific populations of wild salmon could eventually lead to extinction of the wild salmon. That's why the Royal Society was very specific. Why? First, because they compete for food. Second, they are also sexual predators. They compete for reproduction even if the next generation is less viable. Basically, there is a weakening of the wild salmon compared to the GE salmon.
I invite you and this committee, for time's sake, to look at some of the documentation of the European Free Trade Agreement and some of the experts who looked into that, and to do it quickly, because this issue is going to come up sooner than you think.