HomeFish encyclopediaRay-finned fishesCodsHakes and burbotsFourbeard rockling Fourbeard rockling (Enchelyopus cimbrius) Scientific name: Enchelyopus cimbrius Linnaeus, 1766 The Fourbeard rockling (Enchelyopus cimbrius) is a marine fish of the family Lotidae. BiologySedentary bottom dwellers on muddy sand between patches of hard substrate, or on the soft, smooth ground of deep sinks on the continental slopes of both sides of the North Atlantic. Feed on flatfishes, amphipods, decapods, copepods, mysids, shrimps, isopods and other small crustaceans. Spawn in the Baltic Sea. Mixed with soups and other products hot-smoked.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameEnchelyopus cimbriusFamilyLotidae (Hakes and burbots)OrderGadiformes (Cods)ClassActinopterygii (Ray-finned fishes)Maximum length41.0Common length30.0Depth range20–650 m (66–2133 ft)EnvironmentMarine; demersal; oceanodromous; depth range 20 - 650 m, usually 20 - 50 mClimateTemperateDistributionNorthwest Atlantic: northern Gulf of Mexico to Newfoundland, western Greenland. Northeast Atlantic: coasts of Europe and the British Isles from the Barents Sea to the northern Bay of Biscay. One locality at Cape Blanc, Mauritania. Reported from Estonia.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: minor commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (K=0.20-0.25; tm=3; tmax=9; Fec=5,000) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026