Author(s): Filipe Romao; Ana L. Quaresma; Paulo Branco; Jose Maria Santos; Maria Teresa Ferreira; Antonio N. Pinheiro
Linked Author(s): José Maria Santos
Keywords: No Keywords
Abstract: In Mediterranean regions and other areas with water scarcity, discharge-efficient passage systems are required to reestablish longitudinal connectivity to migratory fish. The present study compares the passage performance of the Iberian barbel (Luciobarbus bocagei), a potamodromous cyprinid, negotiating two different types of vertical slot fishways (VSF): a standard VSF and a recently developed multi-slot fishway (MSF), which operates with a smaller discharge (31%) compared to the VSF. Fish performance was similar between fishways, however differences were found in the negotiation of the fishway entrance. Although the MSF was considered a more cost-effective solution, further studies, should focus on the entrance and attraction conditions to improve MSF effectiveness for cyprinid species.
Year: 2018