Aquaculture could harm animal welfare or protect it, depending on what species the farms raise

The rapid growth in aquaculture means that billions of individual aquatic animals are now being farmed without basic information that could help ensure even minimal welfare standards. Our newly published study shows that these welfare risks are not uniform: Aquaculture is likely to have severe effects on welfare for some species, but negligible impacts on others. By Becca Franks, Chiawen Chiang