Scientific Name: Anarhichas lupus
Description: Elongated laterally compressed body. Has a heavy blunt head, terminal mouth with conical teeth. Lateral line is absent. Colour variable from a blue to olive green to purplish brown. There are also 10 dark vertical bars along the body.
Distribution: Occurs on both sides of the Atlantic Ocean . The wolfish is a hard bottom dweller, occurring at depths of 101-350m.
Diet: Preys upon a variety of bottom invertebrates, echinoderms, molluscs, crustaceans and small amounts of fish.
Growth: Little is known about the growth of the wolffish except that it is rapid during its first summer. They can grow up to 5-6 feet in length.
Reproduction: Spawning takes place in September and eggs are deposited in a mass that the male guards. Male Atlantic wolffsh, reduce feeding just before spawning and do not feed until the eggs have hatched.
Predation: Juvenile wolffish have been found in cod stomachs.
Relation to man: There is no directed fishery for wolffish, but they are taken as by-catch of the ground fishery. These fish also have antifreeze proteins, but little is known about their pattern or production.
Fletcher Lab - PhD student Mariève Desjardins is studying the evolution of antifreeze proteins in Atlantic Wolffish.