Cyclopterus lumpus, commonly known as the lumpfish, inhabits the cold waters of the North Atlantic. Notable for its stout, rounded body and bumpy skin, the lumpfish is equipped with a unique suction disc formed from pelvic fins, enabling it to cling to rocky substrates. Typically solitary, it feeds on small invertebrates and plays a role in controlling pest populations.

Cyclopterus lumpus, commonly known as the lumpfish or lumpsucker, is native to the North Atlantic Ocean. Its geographical distribution includes the coastal waters of both the eastern and western North Atlantic. In the eastern Atlantic, it is found from the Barents Sea and Iceland down to the Bay of Biscay. In the western Atlantic, its range extends from Greenland and the Gulf of St. Lawrence down to the Chesapeake Bay.

The lumpfish is typically found in cold, temperate marine environments. It inhabits coastal and offshore waters, often residing at depths ranging from 50 to 300 meters, although it can be found as deep as 400 meters. The species prefers rocky substrates and areas with abundant seaweed, which provide both food and protection.

Cyclopterus lumpus is primarily a benthic species, meaning it lives near the sea floor. It is well-adapted to cold, oxygen-rich waters. The lumpfish feeds on a variety of benthic invertebrates, such as crustaceans and mollusks, making it an important part of the marine food web. During the breeding season, lumpfish migrate to shallower waters where males guard the eggs until they hatch.