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Under the Antarctic Ice--Antarctic Toothfish Dissostichus
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Under the Antarctic Ice--Antarctic Toothfish (Dissostichus mawsoni)

July 12, 2010
Under the Antarctic Ice--Antarctic Toothfish (Dissostichus mawsoni) An Antarctic Toothfish (Dissostichus mawsoni). This image was taken as part of the on-going National Science Foundation (NSF)-supported "seal cam" project, where scientists use seals as "eyes" to observe what goes on underneath the Antarctic ice. The Antarctic Weddell seals are a predator of the toothfish. Antarctic toothfish are a piscivorous, bentho-pelagic nototheniid endemic to Antarctica. They have a circumpolar distribution around the continent occupying waters between 500 and 3000 meters in depth. Juvenile toothish primarily occupy the shallow end of this spectrum while neutrally buoyant adults descend into deeper waters. Antarctic toothfish live to at least 39 years of age, as supported by a recent age validation study, and grow to over 2 meters in length. [Image 3 of 4 related images. See Image 4.]