The effect of a hydropower station associated with a navigation canal on the Atlantic salmon smolt: identification of impacts and remedial actions
peer reviewed The combined impact of disturbances on downstream migrating fish in large-sized rivers, such as a hydropower station associated with a navigation channel, has never been studied. From 2014 to 2016, we investigated the downstream migration of n=72 acoustic-tagged smolts in the Meuse riv...
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ftorbi:oai:orbi.ulg.ac.be:2268/293185 2024-04-21T07:57:27+00:00 The effect of a hydropower station associated with a navigation canal on the Atlantic salmon smolt: identification of impacts and remedial actions Influence d'une centrale hydroélectrique associée à un canal de navigation sur la dévalaison du smolt de saumon atlantique : mise en évidence des impacts et pistes de remédiation Renardy, Séverine Abderrahmane, Takriet Benitez, Jean-Philippe Dierckx, Arnaud Baeyens, Raf Coeck, Johan Pauwels, Ine S. 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 2022-07-06 https://orbi.uliege.be/handle/2268/293185 fr fre https://orbi.uliege.be/handle/2268/293185 info:hdl:2268/293185 4ème Conférence internationale I.S.Rivers, Lyon, France [FR], 4 juillet 2022 au 8 juillet 2022 Migratory fish Hydroelectricity Downstream migration River restoration Hydrodynamic modelling Life sciences Aquatic sciences & oceanology Sciences du vivant Sciences aquatiques & océanologie conference paper not in proceedings http://purl.org/coar/resource_type/c_18cp info:eu-repo/semantics/conferencePaper peer reviewed 2022 ftorbi 2024-03-27T14:52:07Z peer reviewed The combined impact of disturbances on downstream migrating fish in large-sized rivers, such as a hydropower station associated with a navigation channel, has never been studied. 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. In order to identify the effect of water flow directions and velocities on smolt behaviour, the hydrodynamic characteristics of the study site were notably modeled. Of the migrating smolts, 41.5 % performed back and forth movements before approaching the complex, sometimes over long distances and at a slow pace, leading to significant delays (3‒298 h). 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. The escapement rate at the end of the study site has only reached 2.9 % by the canal and 8.3 % by the Meuse river. This site turns out to be problematic for successful smolt downstream migration by highly impeding the longitudinal Meuse river connectivity. Possible remediations will be discussed in order to improve the crossing rate of this type of complex. Conference Object Atlantic salmon University of Liège: ORBi (Open Repository and Bibliography) |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
French |
topic |
Migratory fish Hydroelectricity Downstream migration River restoration Hydrodynamic modelling Life sciences Aquatic sciences & oceanology Sciences du vivant Sciences aquatiques & océanologie |
spellingShingle |
Migratory fish Hydroelectricity Downstream migration River restoration Hydrodynamic modelling Life sciences Aquatic sciences & oceanology Sciences du vivant Sciences aquatiques & océanologie Renardy, Séverine Abderrahmane, Takriet Benitez, Jean-Philippe Dierckx, Arnaud Baeyens, Raf Coeck, Johan Pauwels, Ine S. Mouton, Ans Archambeau, Pierre Dewals, Benjamin Pirotton, Michel Erpicum, Sébastien Ovidio, Michaël The effect of a hydropower station associated with a navigation canal on the Atlantic salmon smolt: identification of impacts and remedial actions |
topic_facet |
Migratory fish Hydroelectricity Downstream migration River restoration Hydrodynamic modelling Life sciences Aquatic sciences & oceanology Sciences du vivant Sciences aquatiques & océanologie |
description |
peer reviewed The combined impact of disturbances on downstream migrating fish in large-sized rivers, such as a hydropower station associated with a navigation channel, has never been studied. 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. In order to identify the effect of water flow directions and velocities on smolt behaviour, the hydrodynamic characteristics of the study site were notably modeled. Of the migrating smolts, 41.5 % performed back and forth movements before approaching the complex, sometimes over long distances and at a slow pace, leading to significant delays (3‒298 h). 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. The escapement rate at the end of the study site has only reached 2.9 % by the canal and 8.3 % by the Meuse river. This site turns out to be problematic for successful smolt downstream migration by highly impeding the longitudinal Meuse river connectivity. Possible remediations will be discussed in order to improve the crossing rate of this type of complex. |
author2 |
FOCUS - Freshwater and OCeanic science Unit of reSearch - ULiège AFFISH-RC - Applied and Fundamental FISH Research Center - ULiège |
format |
Conference Object |
author |
Renardy, Séverine Abderrahmane, Takriet Benitez, Jean-Philippe Dierckx, Arnaud Baeyens, Raf Coeck, Johan Pauwels, Ine S. Mouton, Ans Archambeau, Pierre Dewals, Benjamin Pirotton, Michel Erpicum, Sébastien Ovidio, Michaël |
author_facet |
Renardy, Séverine Abderrahmane, Takriet Benitez, Jean-Philippe Dierckx, Arnaud Baeyens, Raf Coeck, Johan Pauwels, Ine S. Mouton, Ans Archambeau, Pierre Dewals, Benjamin Pirotton, Michel Erpicum, Sébastien Ovidio, Michaël |
author_sort |
Renardy, Séverine |
title |
The effect of a hydropower station associated with a navigation canal on the Atlantic salmon smolt: identification of impacts and remedial actions |
title_short |
The effect of a hydropower station associated with a navigation canal on the Atlantic salmon smolt: identification of impacts and remedial actions |
title_full |
The effect of a hydropower station associated with a navigation canal on the Atlantic salmon smolt: identification of impacts and remedial actions |
title_fullStr |
The effect of a hydropower station associated with a navigation canal on the Atlantic salmon smolt: identification of impacts and remedial actions |
title_full_unstemmed |
The effect of a hydropower station associated with a navigation canal on the Atlantic salmon smolt: identification of impacts and remedial actions |
title_sort |
effect of a hydropower station associated with a navigation canal on the atlantic salmon smolt: identification of impacts and remedial actions |
publishDate |
2022 |
url |
https://orbi.uliege.be/handle/2268/293185 |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_source |
4ème Conférence internationale I.S.Rivers, Lyon, France [FR], 4 juillet 2022 au 8 juillet 2022 |
op_relation |
https://orbi.uliege.be/handle/2268/293185 info:hdl:2268/293185 |
_version_ |
1796939080632631296 |