barbel performed a significantly higher number of movements in the MSF. Results show that differences exist between configurations in the number of fish movements through the first slot. The present study compares the passage performance of the Iberian barbel, Luciobarbus bocagei (Steindachner, 1864), a potamodromous cyprinid, negotiating two different types of vertical slot fishways (VSF): a standard VSF and a multi-slot VSF (MSF). Discharge-efficient passage systems are required in Mediterranean regions and other areas with dry climates.
Developing and testing new fishway designs is important to improve these facilities.
