Dissostichus

Dissostichus

 

a genus of fishes of the family Nototheniidae of the order Perciformes. It is distinguished from other species of Nototheniidae by its large body and mouth, tusklike teeth, and very small scales.

There are two species, distributed in the waters around Antarctica. The Patagonian tootnfish (Dissostichus eleginoides) measures up to 193 cm long and weighs up to 70 kg. It is found at depths of 800 m along the shores of Argentina, the island of South Georgia, and the subantarctic islands of the Indian Ocean. The species is predatory. The antarctic toothfish (D. mawsoni), which is the same size as the Patagonian toothfish, lives off the shores of Antarctica and feeds on squids and small fish. It is the prey of the Weddell seal and the sperm whale. The antarctic toothfish is commercially valuable; its meat is extremely tasty and has a fat content of up to 30 percent.

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Because this parasite has been reported for Patagonian toothfish (Dissostichus eleginoides), rays and sharks, in Chile (Rodriguez & GeorgeNascimento, 1996; Pardo-Gandarillas et al., 2007, 2009), it may allow concluding that Chinook salmon returning to Palena River could have fed on similar food items, which act as inter-mediate host of Hepatoxylon trichuri.
These changes are common in the carnivorous species such as Dissostichus mawsoni Norman, 1937 (Eastman & DeVries, 1981), Salmo truta Linnaeus, 1758 (Rocha, Monteiro, & Pereira, 1994), and Anguilla anguilla (Linnaeus, 1758) (Rodriguez, Gisbert, Rodriguez, & Castello-Orvay, 2005).
For example, in 2000, the Commission for the Conservation of Antarctic Marine Living Resources (60) (CCAMLR) introduced a "Catch Documentation Scheme" (CDS) for all toothfish species (Dissostichus spp.) because toothfish were being rapidly depleted.
Factors affecting the incidental mortality of seabirds in the Dissostichus eleginoides fishery in the southwest Atlantic (Subarea 48.3, 1995 season).
[55] analyzed the transcriptome of a stenothermal Antarctic fish, Dissostichus mawsoni.
Finally, there is the example of deepwater fish such as orange roughy, Hoplostethus atlanticus, and Patagonian toothfish, Dissostichus eleginoides.
2001 Estimating the abundance of Patagonian toothfish, Dissostichus eleginoides, using baited cameras: a preliminary study.
Asimismo, por el sur tenemos el subsistema constituido por las Aguas Templadas de la Subantartica (ATSA), al que esta asociado el bacalao de profundidad Dissostichus eleginoides y su fauna acompanante.
Mercury in the marine food chain in the Southern Ocean at Macquarie Island: an analysis of a top predator, Patagonian toothfish (Dissostichus eleginoides) and a mid-trophic species, the warty squid (Moroteuthis ingens).
Most of the fish were small and slender, usually 10 to 30 centimeters, until we caught an Antarctic toothfish (Dissostichus mawsoni), a fish that grows to more than two meters in length, making them the largest and most dominant fish in the Southern Ocean.
CCAMLR introduced catch documentation schemes in 2000 to monitor landings of and global trade in the Patagonia toothfish or Chilean sea bass (Dissostichus eleginoides) in order to assess and combat IUU fishing for this species.
The subject of the current investigations was the anti-freeze glycoproteins of the Antarctic toothfish Dissostichus mawsoni, which one of the American partners, Arthur L.