As Monsanto has already displayed through their lawsuits, when GMO/GE product runs rampant throughout nature - and it does - the patent holder of the modified gene has license to indiscriminately test product for any trace of the gene.
If a genetic trace is found, as it stands in the law, Monsanto owns the rights to it. This includes any genetic modifications to other plants, animals, and people, because it is the result of cross-pollination or consumption. This is an extraordinarily dangerous precedent, and one GE salmon farmers will likely exploit.
The implication here is that all salmon could arguably be "owned" by AquaAdvantage and AquaBounty Technologies in the very near future. This is beyond measures of ridiculousness and has the potential to put the world in Oliver Twist's shoes, "Please sir, I want some more."