in a relatively short timespan aquaculture has developed into a considerable industry for the production of food reaching more than million tonnes in with atlantic salmon as the most important species the sector is still relatively young and has the potential for further growth and development asche and bjprndal the important production nordic areas in terms of volume are the norwegian coast danish inland waters and the coast of the faroe islands aquaculture is now also developing in nutrient poor oligotrophic freshwater basins in the baltic sea and in land based recirculation systems ras in several nordic regions