Any larger marine animal would be a natural predator of any small marine animal in the Southern Ocean that surrounds Antarctica. Depending on its size, the toothfish could become prey to a penguin, a seal or a whale, or another salt-water fish.
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Antarctic cod is a misnomer for the Antarctic toothfish, the top predator in the Southern Ocean.From the Wikipedia entry:"Antarctic toothfish, Dissostichus mawsoni, can grow in excess of two metres in length and more than 150 kg in mass."
Animals that eat toothfish are elephant seals, albatross, and different types of whales like the sperm and killer whales. The two species of toothfish are Antarctic and Patagonian toothfish. These fish are bottom-dwellers, and adult toothfish can weigh up to 220 pounds.
Also known as the Antarctic Toothfish, the scientific name is Dissostichus mawsoni.
Squids and the antarctic toothfish live in the waters of the antarctic penguins, seals, elephant seals, and many other.
Antarctic cod are often eaten by seals and orcas. These fish are also called the Antarctic toothfish and are eaten primarily by people.
Primarily fish including the Antarctic cod and Patagonian toothfish.
You may be thinking of the Antarctic toothfish. These animals grow to more than 1.7 m in length and can weigh 135 Kg. These animals are eaten by people who think they're eating Patagonian toothfish.
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Antarctic Cod, properly named Antarctic Toothfish, are sea animals with special adaptations to polar cold water. The Southern Ocean can remain liquid to about 27 degrees F, or -2 degrees C, based on high mineral content. At -19 degrees C, water is frozen and contains no life. From the Toothfish Wikipedia entry: "The Antarctic toothfish is noteworthy, like most other Antarctic notothenioids, for producing antifreeze glycoproteins. . .. The presence of antifreeze glycroproteins allows [these animals] to thrive in sub-zero waters of the Southern Ocean surrounding Antarctica."
Antarctic cod, mackerel icefish, and Antarctic toothfish are three species of fish having certain properties of 'antifreeze' proteins contained in their blood that enable them to survive in temperature where 'normal' tissues would freeze.
An adult antarctic cod (also known as an Antarctic toothfish), is typically 2 meters (six feet) in length and weighs about135 kilograms (300 pounds). Some are known to have weight as much as 150 kilograms.