The two main species of krill are harvested from the Antarctic Ocean (E. Superba) and the North East Pacific (Pacifica). Krill conglomerate in swarms to feed when the weather is warmer, allowing for high yield in a short window of time. Due to enzymes in krill they must be processed using quick freezing within hours of being removed from the cold water otherwise the krill begin to break down. This further allows the krill to retain their excellent nutrition and protein. more... See more text