The krill industry claimed to be one of the most sustainable in the world, but Greenpeace's latest report "Licence to Krill" told a different story.
Data collected over the last five years showed vessels fishing in protected areas, despite the potential impact on the ecosystem.
Greenpeace Campaigner Emily Hunter said removing krill from the Antarctic food web would have a huge impact on the environment.
"The story of the krill industry is a murky one of vessels fishing from the bottom of the food chain near the feeding grounds of whales, penguins and other animals. They’re waging a tug-of-war for food."
Hunter said the demand for krill based products, like Omega 3 and other nutritional supplements, has become a multi-million dollar industry, despite viable plant based alternatives.
Greenpeace has called upon retailers to no longer support the Antarctic krill fishing industry.
The Commission for the Conservation of Antarctic Marine Living Resources, or CCAMLR, met last year in October where a marine sanctuary was proposed in the Weddell Sea.