As fish farming grows, so does pollution from farming crops for fish feed, study suggests

atlantic-salmonIn an effort to make fish farming more sustainable, the aquaculture industry has been cutting back on feed made of other fish and replacing it with plant-based alternatives. But a new study warns that may make the fish less healthy to eat and have negative impacts on the environment. Many fish species that are farmed, including Atlantic salmon, the most farmed fish in Canada, are carnivores that eat feed traditionally based on fish meal and fish oil. Environmental advocates such as Greenpeace have criticized the practice as unsustainable, as wild fish that could be used to feed people or maintain wild populations need to be caught in order to produce the fish food. Read the rest here 10:20