Fig. 4
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Trois exemples d'aménagement d'obstacles sur le Bocq : bras de contournement à Purnode (à gauche), dispositif en pré-barrages Yvoir (au milieu) et passe à poissons à Yvoir (à droite).
Three examples of barriers restoration projects implemented on the Bocq river: bypass channel in Purnode (left), pre-barrage (middle) and fish pass in Yvoir (right).
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