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River fragmentation due to artificial barriers directly impacts fish communities by limiting migratory movements. This work aims to understand how small barriers affect the movements of a potamodromous cyprinid species – the Iberian barbel (Luciobarbus bocagei (Steindachner, 1864)) – in a 5.6km upstream segment of a stream impacted only by the presence of physical barriers. Fish were marked with Visible...
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