Polar fish
Fish of the Arctic and Southern Oceans, adapted to water near minus 2 degrees Celsius.
Also: Antarctic fish, Arctic fish
The Southern Ocean around Antarctica is dominated by one group, the notothenioids, including the Antarctic toothfish and the icefish, which carry antifreeze in their blood. The Arctic holds polar cod, Arctic char, capelin and the Greenland shark, which may live for centuries. Polar fish grow and breed slowly in the cold, so they recover slowly from fishing. The Patagonian and Antarctic toothfish, sold as Chilean sea bass, are managed by an international commission, CCAMLR, set up in 1982.