I believe the technology is inherently risky. And I believe that if production were very limited, if the numbers of farms in a given area were severely restricted, if there were no proximity to wild stocks that could be impacted by disease and parasite transfer from the farms, if there were no chemical use on the farms being dispersed into the marine environment, then perhaps you could raise fish in net cages in the ocean. But I don't see that happening anywhere.
In order for the industry to be profitable, they have to rely on density. In order for them to be efficient, they rely on the concentration of farms in a given area so that their feed boats and their crew boats do not have to travel vast distances from one farm to the next. When you create a situation like that, you begin to have cumulative impacts. And I don't believe we can reach a point where those impacts can be completely negated.