Patagonian Desert albeit to the west, where precipitation is higher, bushes are replaced by grasses. Topographically the deserts consist of alternating tablelands and massifs dissected by river valleys and canyons. The more western parts of the steppe host lakes of glacial origin and grades into barren mountains or cold temperate forests along valleys. Inhabited by hunter-gatherers since Pre-Hispanic times, the desert faced migration in the 19th century of Mapuches, Chileans, Argentines, Welsh, and other European peoples, transforming it from a conflictive borderland zone to an integral part of Argentina, with cattle, sheep and horse husbandry being the primary land uses. The Patagonian
Patagonian toothfish worried about the future for the species. An open reply noted that sea birds had indeed been protected in toothfish fisheries globally, and that IUU fishing was virtually eliminated. The EU has also imposed requirements against IUU fishing that include: Patagonian Toothfish is currently listed by the Monterey Bay Aquarium on its Seafood Watch list and pocket guides. In April 2013, Seafood Watch produced an updated report, indicating new ratings for some fisheries, which allocates approximately 78% of toothfish caught worldwide, which are as follows: In 2010, Greenpeace International added the Patagonian toothfish to its seafood red list. "The Greenpeace