This cruise forms part of an international coordinated survey monitoring the populations of herring and sprat in the North Sea and adjacent waters. The whole survey area is covered annually during June and July by vessels from Norway, Scotland, Ireland, Germany, The Netherlands and Denmark. The Danish vessel, Dana, has participated in this survey since its beginning in 1981 and will participate again in 2022.
This survey uses a combination of acoustic methods and biological sampling of pelagic fish to achieve the following