As part of the LIFE project Remibar, 304 culverts or dams (also called objects) that constituted migration barriers for aquatic organisms and otters in the Counties of Norrbotten and Västerbotten have been removed or rebuilt. These migration barriers were located in five project areas in five river systems that were part of the EU Natura2000 network. In the County of Norrbotten, the areas included in the project were the Ängesån project area (part of the Torne River drainage basin), the Råneälven project area (part of the Råne River drainage basin) and the Varjisån project area (part of the Pite River drainage basin). In the County of Västerbotten the Sävarån and Lögdeälven project areas encompassed the Sävar River and the Lögde River drainage basins.