Patagonian toothfish | |
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Not evaluated (IUCN 3.1)
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Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Actinopterygii |
Order: | Perciformes |
Family: | Nototheniidae |
Genus: | Dissostichus |
Species: | D. eleginoides |
Binomial name | |
Dissostichus eleginoides Smitt, 1898 |
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Synonyms | |
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The Patagonian toothfish, Dissostichus eleginoides, is a species of cod icefish found in cold waters (1–4 °C or 34–39 °F) between depths of 45 m (148 ft) and 3,850 m (12,631 ft) in the southern Atlantic, Pacific and Indian Oceans and Southern Ocean on seamounts and continental shelves around most sub-Antarctic islands.
A close relative, the Antarctic toothfish (Dissostichus mawsoni), is found farther south around the edges of the Antarctic shelf; and a Marine Stewardship Council (MSC) certified fishery is active in the Ross Sea.
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.
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.
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.