Krill also appears in the trade, which, although it is one of the largest biomasses on the planet (Antarctic krill alone is estimated at 380 million tons) is caught in quantities not exceeding 120.000 tons per year.

An excerpt from the article 22 facts about crustacean

Krill is often used not as a dish but as a raw material for the production of oil - a very healthy dietary supplement with high amounts of omega-3 fatty acids, mainly EPA, and DHA with high bioavailability and rich in astaxanthin.