Krill fishing in Antarctica affects penguins, whales, seals, and seabirds that depend on krill as their primary food source.
While krill themselves may have limited pain capacity, removing krill from penguin and whale feeding grounds affects the welfare of multiple dependent species through starvation. Krill concentrations in certain fjords and bays are critical breeding-season food sources for animals whose chick or calf survival depends on energy availability. Shifting omega-3 supplement sources and sustainable fishing practices protect the broader ecosystem.