<P> The average weight of a commercially caught Patagonian toothfish is 7--10 kg (15--22 lb), depending on the fishery, with large adults occasionally exceeding 100 kilograms (220 lb). They are thought to live up to fifty years and to reach a length up to 2.3 m (7.5 ft). Several commercial fisheries exist for Patagonian toothfish which are detailed below . </P> <P> This species is also sold under the trade names Chilean Seabass in the United States and Canada; Merluza negra in Argentina, Peru and Uruguay; Legine australe in France; Mero in Korea, Japan, and Spain, and Bacalao de profundidad in Chile . </P> <P> The name "Chilean Seabass" was invented by a fish wholesaler named Lee Lantz in 1977 . He was looking for a name that would make it attractive to the American market . He considered "Pacific sea bass" and "South American 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 . </P> <P> 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 . </P>

What is the real name for chilean sea bass