What is "greenland halibut"

The Greenland halibut or Greenland turbot (Reinhardtius hippoglossoides) belongs to the Pleuronectidae family (the right eye flounders), and is the only species of the genus Reinhardtius. It is a deep water fish, ranging between about , and is found in the northern Atlantic and northern Pacific Oceans.

The Greenland halibut is a flatfish, and the left eye has migrated during the fish's development so that it is on the right side of the head. However, in this fish, it has not moved as far as in bottom-dwelling flatfish and the fish can probably see forwards. The Greenland halibut can swim in a vertical position and both sides of its body are a speckled brown colour, but the left side is rather paler than the right. This fish is used for human consumption and is caught mostly by trawling. Greenpeace considers the fishery unsustainable and has added the Greenland halibut to its seafood red list.