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Fig. 5

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Effets des pressions sur les cinq indicateurs estimés par les GAMs. Ns : échappement d’anguilles argentées (nombre), SR : proportion de femelles (sex-ratio), Ls : longueur moyenne à l’argenture, E : quantité d’œufs produite, Sl : proportion d’individus à croissante lente, g : pêcherie civelière, s0,66 et s0,1: pêcheries d’anguilles argentées situées à l’amont et à l’aval, respectivement, t0,66 et t0,1: turbines situées à l’amont et à l’aval, respectivement, b0,66 et b0,1: obstacles à la montaison situés à l’amont et à l’aval, respectivement.

Effects of the pressures on the five indicators estimated by the GAMs. Ns: number of escapees, SR: proportion of females (sex-ratio), Ls: mean length-at-silvering, E: egg production, Sl: proportion of slow growers, g: glass eel fishery, s0,66 and s0,1: silver eel fisheries located near the river source and the river mouth, respectively, t0,66 and t0,1: turbines located near the river source and the river mouth, respectively, b0,66 and b0,1: obstacles located near the river source and the river mouth, respectively.

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