@FOUND SOUL,
There is no linkage between the conservation of wild, pelagic environments and any farming operation, including farming for fish and shellfish. As for other types of farming, much of it is done by corporate enterprises, or is subsidized by the state. These are chronically short-term thinkers. They are interested in the bottom line, and have little to no interest in the conservation of resources.
But, once again, to hew to the line of discussion, farming fish or shellfish has no impact on pelagic conditions, from which wild seafood derives. The closest anyone can come to making such an argument is to talk about pollution, but pollution is an issue in itself, not an issue of the conservation of wild species.