Hatching insects and jumping trout is the epitome of clean water  and fresh nature. But how long can we keep this idyll? Anthropogenic pollution and alteration of rivers and streams threatens the spaw ... Continue

Hatching insects and jumping trout is the epitome of clean water  and fresh nature. But how long can we keep this idyll? Anthropogenic pollution and alteration of rivers and streams threatens the spawning grounds of fish and and the life of insects. DVD available in FFP shop.