Patagonian toothfish 50 years and to reach a length up to . Several commercial fisheries exist for Patagonian toothfish which are detailed below. This species is also sold in the trade under the culinary names Chilean seabass in the United States and Canada; in Argentina, Peru and Uruguay; legine australe in France; mero in Korea, Japan, and Spain, and bacalao de profundidad in Chile. 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
Patagonian mara as anal digging. In addition a male will stand on his hind legs and urinate on a female’s rump to which the female will respond by spraying a jet of urine backwards into the face of the male. The male’s urination is meant to repel other males from his partner while the female’s urination is a rejection of any approaching male when she is not receptive. Both anal digging and urination are more frequent during the breeding season and are more commonly done by males. The Patagonian mara is considered to be a near threatened species. Historically, maras have ranged