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Roche P.,Office National de lEau et des Milieux Aquatiques | Pautrat P.,Agence de lEau Rhone Mediterranee and Corse
Houille Blanche | Year: 2011

The existence of linked institutional frameworks and technical considerations backed, substantiated and shared by a large number of actors, brings within reach new and clear targets for restoring the biological continuum in the downstream section of the Rhone. These frameworks and considerations comprise: - the institutional framework of the Rhone Plan (2007-2013) that brings together these actors to ensure the sustainable development of the Rhone Valley, - CNR's Missions in the General Interest organised in five-year plans (2009-2013 for the current plan), - considerations stemming from the Migratory Fish Management Plan (2010-2014), the Eel Management Plan, and in particular the contributions of ONEMA, - setting up a strategy to restore migratory fish species in the Rhone Valley (2009), - the framework agreement implemented between the Water Agency and CNR prefiguring the finance for actions during the next few years (2009). Four types of action will be implemented to achieve these targets: the use and optimisation of migration routes by increasing the reliability of facilities and adapting the management of three navigation locks, in addition to existing facilities further upstream, - the elimination of hard points, especially by the construction of a fish pass on the dam-hydropower plant of Sauveterre, - the construction of structures in small hydropower plants permitting migration runs up and downstream, following the increased use of compensation water in the Old Rhone (cf. contribution on the small hydropower plant of Rochemaure), - monitoring the efficiency of the actions performed and improving knowledge of populations © 2011 Société Hydrotechnique de France. Source

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