RT info:eu-repo/semantics/article
T1 Passage performance of technical pool-type fishways for Potamodromous Cyprinids: novel experiences in semiarid environments
A1 Sanz Ronda, Francisco Javier
A1 Bravo Córdoba, Francisco Javier
A1 Sánchez Pérez, Ana
A1 García Vega, Ana
A1 Valbuena Castro, Jorge
A1 Fernandes Celestino, Leandro
A1 Torralva, Mar
A1 Oliva Paterna, Francisco José
AB Endemic freshwater fish from semiarid environments are among the most threated species in the world due to water overexploitation and habitat fragmentation problems. Stepped or pool-type fishways are used worldwide to reestablish longitudinal connectivity and mitigate fish migration problems. Many of them are being installed or planned in rivers of semiarid environments, however, very few studies about fish passage performance through pool-type fishways has been carried out to date on these regions. The present work focuses on the passage performance of two potamodromous cyprinids endemic of these regions, with different ecological and swimming behavior: southern Iberian barbel (Luciobarbus sclateri) and Iberian straight-mouth nase (Pseudochondrostoma polylepis). These are assessed in two of the most common types of stepped fishways: vertical slot and submerged notch with bottom orifice fishways. Experiments were carried out during the spawning season in the Segura River (southeastern Spain), using a passive integrated transponder (PIT) tag and antenna system. Ascent success was greater than 80%, with a median transit time lower than 17 minutes per meter of height in all trials, and for both species and fishway types. Results show that both types of fishways, if correctly designed and constructed, provide interesting alternatives for the restoration of fish migration pathways in these regions.
PB MDPI
SN 2073-4441
YR 2019
FD 2019
LK https://uvadoc.uva.es/handle/10324/53128
UL https://uvadoc.uva.es/handle/10324/53128
LA eng
NO Water, 2019, vol. 11, n. 11, 2362
NO Producción Científica
DS UVaDOC
RD 24-nov-2024