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  • News & Media

    Practical advice for building fish migration aids

    Vienna, 26 March 2013. The ICPDR has published a manual with practical advice for measures that aim to ensure fish migration at transverse structures such as dams and weirs.

  • Publications

    Measures for ensuring fish migration at transverse structures (1.03 MB)

  • Content pages

    Wetlands

    The floodplains and wetlands of the Danube basin are uniquely valuable ecosystems in global terms, although few areas are still in their natural or near-natural state.

  • Content pages

    Dams & Structures

    Since the 16th century, people have been changing the natural course of the rivers in the Danube River Basin, mainly for flood defence, hydropower generation and navigation. All these changes affect the ecological quality of the rivers. Changes in the depth or width of a river typically reduce flow rates, interrupting natural sediment transportation as well as the migration routes of animals.