Antarctic fishes

Common name for several species of fish

Antarctic fishes are a relatively limited but highly specialized group of species adapted to extreme cold in the Southern Ocean. Many belong to the “white-blooded” icefish group, such as the mackerel icefish that lack 'hemoglobin" and thus have colorless blood, a feature that is unique to this region. Other abundant types include ‘Antarctic cods’ though they are not true cods which possess antifreeze glycoproteins in their blood allowing them to survive in waters below the normal freezing point.

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