Conversation

"Whales are recovering from near extinction, but industrial fishing around Antarctica competes for their sole food source.
Nearly all of this catch is used to make two products: fish meal for aquaculture, and omega-3 dietary supplements. Most of the fish meal feeds farmed salmon, which develop their familiar pink color from consuming the food."

https://theconversation.com/whales-are-recovering-from-near-extinction-but-industrial-fishing-around-antarctica-competes-for-their-sole-food-source-237927