What ocean is know for having a rich level of krill?

The Southern Ocean, surrounding Antarctica, is known for its rich levels of krill, particularly Antarctic krill (Euphausia superba). This nutrient-rich environment supports a diverse ecosystem, serving as a crucial food source for various marine animals, including whales, seals, and seabirds. The abundance of krill plays a vital role in the ocean's food web and is significant for global marine biodiversity.