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There are serious problems with this if salmon farming is anything to go by.
You probably know about the levels of localised pollution and disease caused by salmon farms. A bigger, but possibly less well known, problem is that it takes about 3 tons of wild caught fish to produce 1 ton of farmed salmon. Much of the feed is made up of sandeels and other species low down the food chain and their removal from the ecosystem has a serious impact on the wild fish that depend on them.
You probably know about the levels of localised pollution and disease caused by salmon farms. A bigger, but possibly less well known, problem is that it takes about 3 tons of wild caught fish to produce 1 ton of farmed salmon. Much of the feed is made up of sandeels and other species low down the food chain and their removal from the ecosystem has a serious impact on the wild fish that depend on them.
