Fig. 1
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(a) and (b) Location of the study site on the Rhins River with indications of the fished river sectors (S1–S6), (c) rock weir located between S3 and S4, (d) bridge stabilization weir with macroroughness block ramp (view from downstream), (e) top view of two upstream ramp sections separated by a rest pool, showing two different bed levels on either side of the ramp.
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