Hálsar in Djúpavogshreppur was protected as an agabus uliginosus habitat in 2011. The aim of the protection is to promote the preservation and maintenance of the natural condition of the ponds in Hálsar and strengthen the protection of the only known habitat of agabus uliginosus in Iceland, along with other ecosystems in the area.

Furthermore, the aim of the protection is to ensure research opportunities of the ecosystem in the area, with emphasis on the agabus uliginosus habitat, which is nearly undisturbed, and the research and educational value of the area is high.

All known Haliplus fulvus in Iceland are found in the ponds in Hálsar, and the area has a diverse and robust ecosystem.

When deciding on the protection, the Convention on the Conservation of European Wildlife and Natural Habitats (Bern 1979) was taken into account, as provided for in the Official Journal C 17/1993, Convention on Biological Diversity (Rio de Janeiro 1992), and the Official Journal C 3/1995, a European conservation plan on the protection of invertebrates that was formed on the basis of the Bern Convention (Nature and Environment No. 145) and the 2010 United Nations Biodiversity Target.