Wolf fish

Wolf fish is a common name for several related marine fishes in the family Anarhichadidae, especially the wolffish group found in cold northern Atlantic and Pacific waters.

Wolf fish is a common name for several related marine fishes in the family Anarhichadidae, especially the wolffish group found in cold northern Atlantic and Pacific waters. They are known for elongated bodies, large canine-like teeth, and strong jaws adapted for crushing hard-shelled prey such as crabs and sea urchins. The name is sometimes also applied to the wolf-eel, a related fish in the eastern Pacific.

Taxonomy and naming

Wolf fish is a common name for several species in the family Anarhichadidae. In broader usage it may also include the wolf-eel, although some sources treat that as a separate related fish.

Physical characteristics

Wolffish are long-bodied fish with large heads and prominent canine-like teeth. Their jaws and molar-like teeth are adapted for crushing shells and other hard prey.

Habitat and range

These fish are found in cold marine waters of the North Atlantic and North Pacific, often near the bottom in rocky areas. They may occur from shallow coastal waters down to depths of 300 metres or more.

Diet and behaviour

Wolffish are bottom-dwelling predators that feed on hard-shelled invertebrates such as crabs, sea urchins, snails and starfishes. Their feeding specialisation helps them occupy a distinctive role in marine ecosystems.

Conservation

Some wolffish species have been affected by habitat disturbance, overfishing and accidental capture in fishing gear. Several sources identify Atlantic wolffish and northern wolffish as species of concern or threatened in parts of their range. Wolf fish are relevant to Canadian readers because Atlantic and northern wolffish occur in North Atlantic waters, including Canadian marine regions, and some species are managed or monitored in fisheries contexts.