These boats are specialised vessels that have spaces or wells in the hull itself.
Here, fresh seawater fills, and here the salmon is transported from fish farms to the place where they are to be slaughtered and packed for transport to the markets.
Salmon is exported all over from Norway. Trailers transport salmon to the closest markets in Europe.
For more remote areas, Norwegian salmon is transported by air.
Otherwise, the pictures show a bit of the coast where the salmon is on the way to the slaughter- and packing plant.
The very last picture shows a small island consisting of the rock granite.