- Data from: High degree of cryptic population differentiation in the Baltic Sea herring Clupea harengus(2012-11-14) Corander, Jukka; Majander, Kerttu; Cheng, Lu; Merilä, Juha; University of Helsinki - Corander, Jukka; University of Helsinki - Majander, Kerttu; University of Helsinki - Cheng, Lu; University of Helsinki - Merilä, Juha