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Fig. 3

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Schéma des sites d’échantillonnage. Les groupes d’individus échantillonnés sur la passe sont appelés « C », et ceux échantillonnés au pied de l’obstacle sont appelés « R ». Cette appellation du groupe est précédée du chiffre correspondant au numéro du segment dans l’axe aval-amont.

Scheme of the sampling sites. Fish sampled directly on the fishways were called “C”, whereas those sampled below the obstacle were called “R”. This denomination is preceded by the number designing the number of the segment on the downstream-upstream axis.

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