To use salmon as an example, there hasn't been a commercial Atlantic salmon fishery since the early 1970s. Salmon aquaculture actually only started in earnest in the 1990s. It fills a void that exists in the market. There's also a wild salmon fishery, of course, on the west coast in both Canada and Alaska. Those fisheries coexist very nicely in terms of meeting the demands of the consumer today. But definitely there's a big demand for farmed salmon from consumers.
I can speak anecdotally about the argument of aquaculture versus wild, but I can't speak as an expert as it relates to the net benefit of having aquaculture as an industry globally.