More than 95 per cent of adult farmed fish are deformed

Daily Mail - Science & tech 

Farmed salmon suffer from deafness because their ears become deformed during their accelerated growth on fishfarms, research has found. Around half of all farmed salmon are at least partially deaf, caused by growths in their inner ears. Researchers say the findings raise questions about the welfare of farmed fish. Farmed salmon suffer from deafness because their ears become deformed during their accelerated growth on fishfarms, research has found. Scientists from the University of Melbourne have found that growing rapidly causes tiny crystals, called otoliths, to form in the fish's inner ears.