Principal human activities include nature protection, recreation, and fishing. Reindeer husbandry and forestry occur in the surroundings. Archeological findings document habitation of the area up to 8,000 years ago. Ramsar site no. 810. Three small rivers converge, forming a system of sheltered brackish lagoons and extensive intertidal mudflats with wet meadows.
Salinity varies from freshwater to brackish and finally salt water.
The high biological production, extensive beds of aquatic vegetation, and invertebrates support large numbers of migrating birds and numerous wintering swans, geese, ducks and waders. Several waterbird species breed at the site, and the otter Lutra lutra is common in the area. Human activities include agriculture and hunting. There are archeological sites in the area. Part of a river delta including shallow marine waters, sand banks exposed at low tide, saltmarsh and wet mires.