Trying to choose the less bad route: Individual migratory behaviour of Atlantic salmon smolts (Salmo salar L.) approaching a bifurcation between a hydropower station and a navigation canal
peer reviewed Contrary to small- and medium-sized rivers, little attention has been paid to the downstream migration of Atlantic salmon smolts in large-sized rivers and the size-related impact of hydropower stations. From 2014 to 2016, we investigated the downstream migration of n=72 acoustic-tagged...
Published in: | Ecological Engineering |
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Main Authors: | , , , , , , , , , , , , |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Elsevier
2021
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Online Access: | https://orbi.uliege.be/handle/2268/261902 https://orbi.uliege.be/bitstream/2268/261902/1/Renardy%20et%20al%202021_EcologicalEngineering_Smolts.pdf https://doi.org/10.1016/j.ecoleng.2021.106304 |
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ftorbi:oai:orbi.ulg.ac.be:2268/261902 2024-04-21T07:57:20+00:00 Trying to choose the less bad route: Individual migratory behaviour of Atlantic salmon smolts (Salmo salar L.) approaching a bifurcation between a hydropower station and a navigation canal Renardy, Séverine Takriet, Abderrahmane Benitez, Jean-Philippe Dierckx, Arnaud Bayens, Raf Coeck, Johan Pauwels, Ine Mouton, Ans Archambeau, Pierre Dewals, Benjamin Pirotton, Michel Erpicum, Sébastien Ovidio, Michaël FOCUS - Freshwater and OCeanic science Unit of reSearch - ULiège AFFISH-RC - Applied and Fundamental FISH Research Center - ULiège 2021-06 https://orbi.uliege.be/handle/2268/261902 https://orbi.uliege.be/bitstream/2268/261902/1/Renardy%20et%20al%202021_EcologicalEngineering_Smolts.pdf https://doi.org/10.1016/j.ecoleng.2021.106304 en eng Elsevier https://www.sciencedirect.com/science/article/abs/pii/S0925857421001592?via%3Dihub urn:issn:0925-8574 https://orbi.uliege.be/handle/2268/261902 info:hdl:2268/261902 https://orbi.uliege.be/bitstream/2268/261902/1/Renardy%20et%20al%202021_EcologicalEngineering_Smolts.pdf doi:10.1016/j.ecoleng.2021.106304 scopus-id:2-s2.0-85107627614 open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess Ecological Engineering, 169 (2021-06) Migratory fish Downstream migration Hydroelectricity Hydraulics River restoration Large-sized river Life sciences Aquatic sciences & oceanology Sciences du vivant Sciences aquatiques & océanologie journal article http://purl.org/coar/resource_type/c_6501 info:eu-repo/semantics/article peer reviewed 2021 ftorbi https://doi.org/10.1016/j.ecoleng.2021.106304 2024-03-27T14:55:22Z peer reviewed Contrary to small- and medium-sized rivers, little attention has been paid to the downstream migration of Atlantic salmon smolts in large-sized rivers and the size-related impact of hydropower stations. From 2014 to 2016, we investigated the downstream migration of n=72 acoustic-tagged smolts in the Meuse river at a bifurcation zone between a hydropower station equipped with three Kaplan turbines and a navigation canal. A hydrodynamic model that solves the depth-integrated shallow water equations on a Cartesian grid using a finite volume technique was used to infer the influence of water discharge and flow velocity on the smolts’ behaviour upstream of the hydroelectric complex. Of the migrating smolts, 41.5 % performed back and forth movements before approaching the complex for the first time, sometimes over long distances and at a slow pace, leading to significant delays (3‒298 h). Beyond about 250 m3 s-1, the water flow direction changes towards the hydropower station with a gradual acceleration. A median water discharge of 161 m3 s-1 and associated median flow velocity of 0.14 m s-1 tended to favour a more direct and downstream movement towards the hydropower station. On the other hand, the navigation canal was mainly approached at low water discharge (median 132 m3 s-1), due to a higher flow velocity (median 0.11 m s-1) at the entrance. Of the released smolts, only 38.6 % passed through the complex, of which 36.4 % migrated by the navigation canal and 63.6 % by the hydropower station, with a median research time of 04:44. Among all the released individuals, the escapement rate at the end of the study site was 2.9 % by the canal and 8.3 % by the Meuse river. This site, which offers two non-optimal, unattractive and unsafe migration routes, turns out to be problematic for successful downstream smolt migration. Article in Journal/Newspaper Atlantic salmon Salmo salar University of Liège: ORBi (Open Repository and Bibliography) Ecological Engineering 169 106304 |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
Migratory fish Downstream migration Hydroelectricity Hydraulics River restoration Large-sized river Life sciences Aquatic sciences & oceanology Sciences du vivant Sciences aquatiques & océanologie |
spellingShingle |
Migratory fish Downstream migration Hydroelectricity Hydraulics River restoration Large-sized river Life sciences Aquatic sciences & oceanology Sciences du vivant Sciences aquatiques & océanologie Renardy, Séverine Takriet, Abderrahmane Benitez, Jean-Philippe Dierckx, Arnaud Bayens, Raf Coeck, Johan Pauwels, Ine Mouton, Ans Archambeau, Pierre Dewals, Benjamin Pirotton, Michel Erpicum, Sébastien Ovidio, Michaël Trying to choose the less bad route: Individual migratory behaviour of Atlantic salmon smolts (Salmo salar L.) approaching a bifurcation between a hydropower station and a navigation canal |
topic_facet |
Migratory fish Downstream migration Hydroelectricity Hydraulics River restoration Large-sized river Life sciences Aquatic sciences & oceanology Sciences du vivant Sciences aquatiques & océanologie |
description |
peer reviewed Contrary to small- and medium-sized rivers, little attention has been paid to the downstream migration of Atlantic salmon smolts in large-sized rivers and the size-related impact of hydropower stations. From 2014 to 2016, we investigated the downstream migration of n=72 acoustic-tagged smolts in the Meuse river at a bifurcation zone between a hydropower station equipped with three Kaplan turbines and a navigation canal. A hydrodynamic model that solves the depth-integrated shallow water equations on a Cartesian grid using a finite volume technique was used to infer the influence of water discharge and flow velocity on the smolts’ behaviour upstream of the hydroelectric complex. Of the migrating smolts, 41.5 % performed back and forth movements before approaching the complex for the first time, sometimes over long distances and at a slow pace, leading to significant delays (3‒298 h). Beyond about 250 m3 s-1, the water flow direction changes towards the hydropower station with a gradual acceleration. A median water discharge of 161 m3 s-1 and associated median flow velocity of 0.14 m s-1 tended to favour a more direct and downstream movement towards the hydropower station. On the other hand, the navigation canal was mainly approached at low water discharge (median 132 m3 s-1), due to a higher flow velocity (median 0.11 m s-1) at the entrance. Of the released smolts, only 38.6 % passed through the complex, of which 36.4 % migrated by the navigation canal and 63.6 % by the hydropower station, with a median research time of 04:44. Among all the released individuals, the escapement rate at the end of the study site was 2.9 % by the canal and 8.3 % by the Meuse river. This site, which offers two non-optimal, unattractive and unsafe migration routes, turns out to be problematic for successful downstream smolt migration. |
author2 |
FOCUS - Freshwater and OCeanic science Unit of reSearch - ULiège AFFISH-RC - Applied and Fundamental FISH Research Center - ULiège |
format |
Article in Journal/Newspaper |
author |
Renardy, Séverine Takriet, Abderrahmane Benitez, Jean-Philippe Dierckx, Arnaud Bayens, Raf Coeck, Johan Pauwels, Ine Mouton, Ans Archambeau, Pierre Dewals, Benjamin Pirotton, Michel Erpicum, Sébastien Ovidio, Michaël |
author_facet |
Renardy, Séverine Takriet, Abderrahmane Benitez, Jean-Philippe Dierckx, Arnaud Bayens, Raf Coeck, Johan Pauwels, Ine Mouton, Ans Archambeau, Pierre Dewals, Benjamin Pirotton, Michel Erpicum, Sébastien Ovidio, Michaël |
author_sort |
Renardy, Séverine |
title |
Trying to choose the less bad route: Individual migratory behaviour of Atlantic salmon smolts (Salmo salar L.) approaching a bifurcation between a hydropower station and a navigation canal |
title_short |
Trying to choose the less bad route: Individual migratory behaviour of Atlantic salmon smolts (Salmo salar L.) approaching a bifurcation between a hydropower station and a navigation canal |
title_full |
Trying to choose the less bad route: Individual migratory behaviour of Atlantic salmon smolts (Salmo salar L.) approaching a bifurcation between a hydropower station and a navigation canal |
title_fullStr |
Trying to choose the less bad route: Individual migratory behaviour of Atlantic salmon smolts (Salmo salar L.) approaching a bifurcation between a hydropower station and a navigation canal |
title_full_unstemmed |
Trying to choose the less bad route: Individual migratory behaviour of Atlantic salmon smolts (Salmo salar L.) approaching a bifurcation between a hydropower station and a navigation canal |
title_sort |
trying to choose the less bad route: individual migratory behaviour of atlantic salmon smolts (salmo salar l.) approaching a bifurcation between a hydropower station and a navigation canal |
publisher |
Elsevier |
publishDate |
2021 |
url |
https://orbi.uliege.be/handle/2268/261902 https://orbi.uliege.be/bitstream/2268/261902/1/Renardy%20et%20al%202021_EcologicalEngineering_Smolts.pdf https://doi.org/10.1016/j.ecoleng.2021.106304 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Ecological Engineering, 169 (2021-06) |
op_relation |
https://www.sciencedirect.com/science/article/abs/pii/S0925857421001592?via%3Dihub urn:issn:0925-8574 https://orbi.uliege.be/handle/2268/261902 info:hdl:2268/261902 https://orbi.uliege.be/bitstream/2268/261902/1/Renardy%20et%20al%202021_EcologicalEngineering_Smolts.pdf doi:10.1016/j.ecoleng.2021.106304 scopus-id:2-s2.0-85107627614 |
op_rights |
open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1016/j.ecoleng.2021.106304 |
container_title |
Ecological Engineering |
container_volume |
169 |
container_start_page |
106304 |
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1796939018257039360 |