Fig. 1.

Map of the study area including sampling stations and a simplified illustration of the dominating currents along the coast from the Danish Belt Sea to the Barents Sea. Green arrows indicate the northbound coastal current, and red arrows indicate ocean currents from the NE Atlantic. Red circles and white boxes show the position and codes of the sample stations. See Table 1 for explanation of the codes. Oslofjorden (IO and D2), Lysefjorden (LY), Salangen (SI and SY) and Isfjorden (KW) are sill fjords, whereas the fjords represented by NH, NS VI and FV are open fjords/coastal areas. DV is located in the Danish Straits. The squares indicates groups (South and North) used in Migrate analysis