Sebastes norvegicus, the rose fish, rock fish, ocean perch, Atlantic redfish, Norway haddock, golden redfish, pinkbelly rosefish, Norway seaperch, Scottish seaperch or bergylt, is a species of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae.

[3] In the past, the scientific name Sebastes marinus was frequently used, but this is actually a synonym of Serranus scriba.

In the western Atlantic it is found as far south as Flemish Cap, the Grand Banks and the Gulf of St.

[8] Sebastes norvegicus is predatory and in the summer its diet is dominated by krill, in the autumn and winter by the Atlantic herring (Clupea harengus) and in spring by capelin (Mallotus villosus), Atlantic herrings, krill and ctenophores in spring.

It is a gregarious species at all stages of its life history which grows slowly and is long lived.

The males inseminate the females in August–September in the Barents Sea and between October and January in waters off Iceland and Greenland but the oocytyes are not fertilised until February and March with larvae being extruded from April to June or even as late as August.

[13] It is also on WWF's list of fish species to avoid, unless the fishery is certified by MSC.

[14][15] In Canada's Gulf of St. Lawrence, the fish is reported to be enjoying a "booming population",[16] leading Atlantic provinces to compete for shares of the fishery, estimated to be able to reach 50,000 tonnes of catch annually.