Fish Upstream Passage through Gauging Stations: Experiences with Iberian Barbel in Flat-V Weirs
The monitoring of river discharge is vital for the correct management of water resources. Flat-V gauging weirs are facilities used worldwide for measuring discharge. These structures consist of a small weir with a triangular cross-section and a flat “V”-shaped notch. Their extensive use is a consequ...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-12-01
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| Series: | Fishes |
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| Online Access: | https://www.mdpi.com/2410-3888/6/4/81 |
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| author | Francisco Javier Sanz-Ronda Francisco Javier Bravo-Córdoba Ana García-Vega Jorge Valbuena-Castro Andrés Martínez-de-Azagra Juan Francisco Fuentes-Pérez |
| author_facet | Francisco Javier Sanz-Ronda Francisco Javier Bravo-Córdoba Ana García-Vega Jorge Valbuena-Castro Andrés Martínez-de-Azagra Juan Francisco Fuentes-Pérez |
| author_sort | Francisco Javier Sanz-Ronda |
| collection | DOAJ |
| description | The monitoring of river discharge is vital for the correct management of water resources. Flat-V gauging weirs are facilities used worldwide for measuring discharge. These structures consist of a small weir with a triangular cross-section and a flat “V”-shaped notch. Their extensive use is a consequence of their utility in the measurement of both low and high flow conditions. However, depending on their size, local morphology and river discharge can act as full or partial hydraulic barriers to fish migration. To address this concern, the present work studies fish passage performance over flat-V weirs considering their hydraulic performance. For this, radio-tracking and video-monitoring observations were combined with computational fluid dynamics (CFD) models in two flat-V weirs, using Iberian barbel (<i>Luciobarbus bocagei</i>) as the target species. Results showed that fish passage is conditioned by both hydraulic and behavioral processes, providing evidence for scenarios in which flat-V weirs may act as full or partial barriers to upstream movements. For the studied flat-V weirs, a discharge range of 0.27–8 m<sup>3</sup>/s, with a water drop difference between upstream and downstream water levels lower than 0.7 m and a depth downstream of the weir of higher than 0.3 m can be considered an effective passage situation for barbels. These findings are of interest for quantifying flat-V weir impacts, for engineering applications and for establishing managing or retrofitting actions when required. |
| first_indexed | 2024-03-10T04:09:23Z |
| format | Article |
| id | doaj.art-97d9ff678a54494c8d2e75dba1f68bf4 |
| institution | Directory Open Access Journal |
| issn | 2410-3888 |
| language | English |
| last_indexed | 2024-03-10T04:09:23Z |
| publishDate | 2021-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fishes |
| spelling | doaj.art-97d9ff678a54494c8d2e75dba1f68bf42023-11-23T08:15:13ZengMDPI AGFishes2410-38882021-12-01648110.3390/fishes6040081Fish Upstream Passage through Gauging Stations: Experiences with Iberian Barbel in Flat-V WeirsFrancisco Javier Sanz-Ronda0Francisco Javier Bravo-Córdoba1Ana García-Vega2Jorge Valbuena-Castro3Andrés Martínez-de-Azagra4Juan Francisco Fuentes-Pérez5GEA Ecohidráulica, Department of Agriculture and Forestry Engineering, ETSIIAA, University of Valladolid, Avenida de Madrid 44, Campus La Yutera, 34004 Palencia, SpainCentro Tecnológico Agrario y Agroalimentario Itagra.ct, Avenida de Madrid 44, Campus La Yutera, 34004 Palencia, SpainCentro Tecnológico Agrario y Agroalimentario Itagra.ct, Avenida de Madrid 44, Campus La Yutera, 34004 Palencia, SpainGEA Ecohidráulica, Department of Agriculture and Forestry Engineering, ETSIIAA, University of Valladolid, Avenida de Madrid 44, Campus La Yutera, 34004 Palencia, SpainGEA Ecohidráulica, Department of Agriculture and Forestry Engineering, ETSIIAA, University of Valladolid, Avenida de Madrid 44, Campus La Yutera, 34004 Palencia, SpainGEA Ecohidráulica, Department of Agriculture and Forestry Engineering, ETSIIAA, University of Valladolid, Avenida de Madrid 44, Campus La Yutera, 34004 Palencia, SpainThe monitoring of river discharge is vital for the correct management of water resources. Flat-V gauging weirs are facilities used worldwide for measuring discharge. These structures consist of a small weir with a triangular cross-section and a flat “V”-shaped notch. Their extensive use is a consequence of their utility in the measurement of both low and high flow conditions. However, depending on their size, local morphology and river discharge can act as full or partial hydraulic barriers to fish migration. To address this concern, the present work studies fish passage performance over flat-V weirs considering their hydraulic performance. For this, radio-tracking and video-monitoring observations were combined with computational fluid dynamics (CFD) models in two flat-V weirs, using Iberian barbel (<i>Luciobarbus bocagei</i>) as the target species. Results showed that fish passage is conditioned by both hydraulic and behavioral processes, providing evidence for scenarios in which flat-V weirs may act as full or partial barriers to upstream movements. For the studied flat-V weirs, a discharge range of 0.27–8 m<sup>3</sup>/s, with a water drop difference between upstream and downstream water levels lower than 0.7 m and a depth downstream of the weir of higher than 0.3 m can be considered an effective passage situation for barbels. These findings are of interest for quantifying flat-V weir impacts, for engineering applications and for establishing managing or retrofitting actions when required.https://www.mdpi.com/2410-3888/6/4/81gauging weirsimpactswimming performancehydraulic barriers |
| spellingShingle | Francisco Javier Sanz-Ronda Francisco Javier Bravo-Córdoba Ana García-Vega Jorge Valbuena-Castro Andrés Martínez-de-Azagra Juan Francisco Fuentes-Pérez Fish Upstream Passage through Gauging Stations: Experiences with Iberian Barbel in Flat-V Weirs Fishes gauging weirs impact swimming performance hydraulic barriers |
| title | Fish Upstream Passage through Gauging Stations: Experiences with Iberian Barbel in Flat-V Weirs |
| title_full | Fish Upstream Passage through Gauging Stations: Experiences with Iberian Barbel in Flat-V Weirs |
| title_fullStr | Fish Upstream Passage through Gauging Stations: Experiences with Iberian Barbel in Flat-V Weirs |
| title_full_unstemmed | Fish Upstream Passage through Gauging Stations: Experiences with Iberian Barbel in Flat-V Weirs |
| title_short | Fish Upstream Passage through Gauging Stations: Experiences with Iberian Barbel in Flat-V Weirs |
| title_sort | fish upstream passage through gauging stations experiences with iberian barbel in flat v weirs |
| topic | gauging weirs impact swimming performance hydraulic barriers |
| url | https://www.mdpi.com/2410-3888/6/4/81 |
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