Licenses: Creative Commons Attribution Share-Alike 4.0 Groups: Abundance Level (FIRMS Standard) FIRMS Fishing Pressure (FIRMS Standard) FishSource Tags: Code 27.4.a System fao Name Northern North Sea Division 27.4.a Code 27.5 System fao Name Iceland and Faroes Grounds Subarea 27.5 Code HER Classification System ASFIS Scientific Name Clupea harengus connected