Recovering and restoring deleted salmonid populations

Salmon and trout have been considered as an umbrella species indicating a good status of the ecosystem. They have a notable existence value producing variety of ecosystem services but moreover, indicating healthy rivers, they can be seen as the key species for stream restoration and adapting human induced changes (e.g. climate change). In less than hundred years we have lost the genetic diversity of salmon by hydropower production all over the country and the Baltic Sea region. Besides hydropower salmonid populations have encountered challenges by habitat loss due timber floating, overall human impact on catchment scale deteriorating water quality and effective fisheries which have all been…