Fish staircase from the Lech Stand Dessau in Bavaria. 

Visit to the fish ladder under construction at the Lech barrage in Bavaria and Germany
A fish pass, fish path or fish ladder is a hydraulic structure on flowing waters to give fish the opportunity to overcome weirs, hydroelectric plants and, if necessary, waterfalls during fish migration. All organisms living in flowing waters depend on the ability to migrate through the waters. Fish ladders enable fish and small animals on the bottom of the water (macrozoobenthos) to overcome structural obstacles.
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Fish ladders
• Playlist : Fischtreppe...
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