The four storage lakes were built between 1938-1961 along the River Inn. High rates of sedimentation have allowed rapid colonization of water-fringe vegetation, especially reedbeds (Phragmites), and alluvial woodland, dominated by willow Salix. When water-levels are low, large areas of mudflats are exposed.
An important site for breeding waterbirds and passage waders. The site holds 20,000 or more waterbirds, on a regular basis.
Pressure/threats to key biodiversity
The main threats are disturbance from angling and hunting, and from recreational activities.
National High International High870 ha of IBA covered by Nature Reserve (Unterer Inn, 870 ha).870 ha of IBA covered by Ramsar Site (Stauseen am Unteren Inn, 870 ha). 870 ha of IBA covered by Special Protection Area (Unterer Inn, 870 ha).
BirdLife International (2019) Important Bird Areas factsheet: Storage lakes on the lower Inn. Downloaded from
http://www.birdlife.org on 14/12/2019.