Water
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May 05, 2010
alpMedia | Schaan, LI
An inventory of all the artificial barriers that impede the flow of rivers has found out that French rivers are interrupted by 60,000 dams, weirs, locks, mills etc. The inventory has been recently published as a online map where the works are shown divided by department, municipality or watercourse. All these works obstruct the movement of migratory aquatic organisms and the transport of sediments, thereby affecting ecosystems.