a study of biological data from 428,773 Norwegian, North Sea and Western Baltic herrings collected between 1970 and 2015*
Comparative biology and population mixing among local, coastal and offshore Atlantic herring in the North Sea, Skagerrak, Kattegat and western Baltic, Florian Berg, Aril Slotte, Arne Johannessen, Cecilie Kvamme, Lotte Worsøe Clausen & Richard DM Nash, 2017