sablefish means: The soft-textured flesh of this saltwater fish is mild in flavor. This fish is great for smoking due to its high fat content. It is also known as “Alaskan cod”, “Black Cod”, “Butterfish” and “Skil”, although it’s neither a butterfish nor a cod. (in Cooking Dictionary)
What else does sablefish mean?
Grayish or black food fish (Anoplopoma fimbria) The North Pacific Ocean. (in Merlin Dictionary)