In recent years, large aggregations of humpback whales and killer whales have been observed in fjords near Tromsø (Northern Norway) during the winter. The whales were attracted by herring that was overwintering in these fjords. As the whales come into the fjords, they encounter areas with an abundance of human activities, such as commercial and recreational shipping and (coastal) fisheries. In order to mitigate the overlap between whale movement and human activities, it is important to understand how the whales use these fjords. In this PhD I use telemetry tracks and dive patterns from humpback whales and killer whales, in order to develop movement models and species distribution models that can be used to identify and characterize areas that are highly used by whales in various behavioral states. The output of these models can be compared with fishing and shipping activities to identify areas of overlap, and to study the whales behavior in areas with a lot of human activities.