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© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

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.

Details

Title
Passage Performance of Technical Pool-Type Fishways for Potamodromous Cyprinids: Novel Experiences in Semiarid Environments
Author
Sanz-Ronda, Francisco Javier 1   VIAFID ORCID Logo  ; Bravo-Córdoba, Francisco Javier 1   VIAFID ORCID Logo  ; Sánchez-Pérez, Ana 2 ; García-Vega, Ana 1   VIAFID ORCID Logo  ; Valbuena-Castro, Jorge 1 ; Fernandes-Celestino, Leandro 3   VIAFID ORCID Logo  ; Mar Torralva 2 ; Oliva-Paterna, Francisco José 2   VIAFID ORCID Logo 

 Applied Ecohydraulics Group (GEA-ecohidraulica.org), E.T.S.II.AA, University of Valladolid, 34004 Palencia, Spain; [email protected] (F.J.B.-C.); [email protected] (A.G.-V.); [email protected] (J.V.-C.) 
 Departmento of. Zoology and Physical Anthropology, Universityof Murcia, 30100 Murcia, Spain; [email protected] (A.S.-P.); [email protected] (M.T.); [email protected] (F.J.O.-P.) 
 Group on Technology in Ecohydraulics and Conservation of Fishery and Water Resources (GETECH), Western Paraná State University (Unioeste), 85903 Toledo, Brazil; [email protected] 
First page
2362
Publication year
2019
Publication date
2019
Publisher
MDPI AG
e-ISSN
20734441
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2550464612
Copyright
© 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.