Patagonian Desert whom 3,000 ended up in Buenos Aires separated by sexes to avoid their procreation. The boundary treaty of 1881 between Chile and Argentina bought most of the desert under definitive Argentine sovereignty; previously Chile had claimed varying now Argentine areas under claims of inherited colonial titles. In the few decades before and after 1900 the less dry parts of the Patagonian steppe experienced a sheep farming boom, transforming the region into one of the world's greatest exporters of ovine products. The area is sparsely populated today and those that do live here survive mainly by the raising of livestock such
Patagonian toothfish sea bass" before settling on "Chilean sea bass". In 1994, the U.S. Food and Drug Administration (FDA) accepted "Chilean Seabass" as an "alternative market name" for Patagonian toothfish, and in 2013 for Antarctic toothfish. In the UK, the approved commercial designations for "D. eleginoides" and "D. mawsoni" are "icefish" and "toothfish". This has created some confusion as there is a genuine "icefish" ("Champsocephalus gunnari") caught in subantarctic waters, which does not resemble toothfish in any way. Patagonian toothfish spawn in deep water (around 1,000m) during the austral winter, producing pelagic eggs and larvae. Larvae switch to a demersal habitat at