Poor Performance of a Retrofitted Downstream Bypass Revealed by the Analysis of Approaching Behaviour in Combination with a Trapping System
peer reviewed The implementation of fish downstream migration bypass systems is still a major challenge, and there is interest in validating the adequacy of different configurations of bypass devices. In the Amblève River (Belgium), a mobile 3.3-m height dam feeds two principal Francis and one Franc...
Published in: | River Research and Applications |
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Format: | Article in Journal/Newspaper |
Language: | English |
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John Wiley & Sons, Inc
2017
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Online Access: | https://orbi.uliege.be/handle/2268/200433 https://doi.org/10.1002/rra.3062 |
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ftorbi:oai:orbi.ulg.ac.be:2268/200433 2024-04-21T07:57:30+00:00 Poor Performance of a Retrofitted Downstream Bypass Revealed by the Analysis of Approaching Behaviour in Combination with a Trapping System Ovidio, Michaël Dierckx, Arnaud Bunel, Sarah Grandry, Louise Spronck, Christelle Benitez, Jean-Philippe AFFISH-RC - Applied and Fundamental FISH Research Center - ULiège FOCUS - Freshwater and OCeanic science Unit of reSearch - ULiège 2017 https://orbi.uliege.be/handle/2268/200433 https://doi.org/10.1002/rra.3062 en eng John Wiley & Sons, Inc urn:issn:1535-1459 urn:issn:1535-1467 https://orbi.uliege.be/handle/2268/200433 info:hdl:2268/200433 doi:10.1002/rra.3062 scopus-id:2-s2.0-84978513692 restricted access http://purl.org/coar/access_right/c_16ec info:eu-repo/semantics/restrictedAccess River Research and Applications, 33, 27-36 (2017) Salmo salar Bypass Performance Hydroelectricity Rivers Behaviour Fish-passage Fishpass Migration Life sciences Environmental sciences & ecology Sciences du vivant Sciences de l’environnement & écologie journal article http://purl.org/coar/resource_type/c_6501 info:eu-repo/semantics/article peer reviewed 2017 ftorbi https://doi.org/10.1002/rra.3062 2024-03-27T14:53:13Z peer reviewed The implementation of fish downstream migration bypass systems is still a major challenge, and there is interest in validating the adequacy of different configurations of bypass devices. In the Amblève River (Belgium), a mobile 3.3-m height dam feeds two principal Francis and one Francis micro-turbine and is equipped with a modern vertical slot fish pass and a downstream bypass. The aim of this study was to test the bypass attraction and efficiency (i.e. percentage of fish that approach the entrance and use the bypass) for Atlantic salmon smolts. During three consecutive years, a total of 1346 smolts were equipped with a radio frequency identification tag and released from March to May upstream of the dam of Lorcé. The entrance of the downstream migration bypass was equipped with a radio frequency identification antenna in order to detect the smolts approaching. In 2014, a capture cage was also placed downstream the bypass to evaluate its efficiency. The mean percentage of detected smolts at the entrance varied from 26.2 to 39.7%. In 2014, 16.5% of the released smolts entered the bypass and were finally caught in the cage, representing 39% of the smolts detected at the entrance. More than 98% of the detections occurred during night (mainly between 9 PM and 3 AM). The searching delay near the bypass entrance varied from less than 5 min to more than 5 days (median 4.3 min). Visual observation indicated a behavioural reluctance before entering the bypass, with a shift from positive to negative rheotaxy. Our results underline the difficulty to install retrofitted bypass system on old existing hydropower plants. Copyright © 2016 John Wiley & Sons, Ltd. Article in Journal/Newspaper Atlantic salmon Salmo salar University of Liège: ORBi (Open Repository and Bibliography) River Research and Applications 33 1 27 36 |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
Salmo salar Bypass Performance Hydroelectricity Rivers Behaviour Fish-passage Fishpass Migration Life sciences Environmental sciences & ecology Sciences du vivant Sciences de l’environnement & écologie |
spellingShingle |
Salmo salar Bypass Performance Hydroelectricity Rivers Behaviour Fish-passage Fishpass Migration Life sciences Environmental sciences & ecology Sciences du vivant Sciences de l’environnement & écologie Ovidio, Michaël Dierckx, Arnaud Bunel, Sarah Grandry, Louise Spronck, Christelle Benitez, Jean-Philippe Poor Performance of a Retrofitted Downstream Bypass Revealed by the Analysis of Approaching Behaviour in Combination with a Trapping System |
topic_facet |
Salmo salar Bypass Performance Hydroelectricity Rivers Behaviour Fish-passage Fishpass Migration Life sciences Environmental sciences & ecology Sciences du vivant Sciences de l’environnement & écologie |
description |
peer reviewed The implementation of fish downstream migration bypass systems is still a major challenge, and there is interest in validating the adequacy of different configurations of bypass devices. In the Amblève River (Belgium), a mobile 3.3-m height dam feeds two principal Francis and one Francis micro-turbine and is equipped with a modern vertical slot fish pass and a downstream bypass. The aim of this study was to test the bypass attraction and efficiency (i.e. percentage of fish that approach the entrance and use the bypass) for Atlantic salmon smolts. During three consecutive years, a total of 1346 smolts were equipped with a radio frequency identification tag and released from March to May upstream of the dam of Lorcé. The entrance of the downstream migration bypass was equipped with a radio frequency identification antenna in order to detect the smolts approaching. In 2014, a capture cage was also placed downstream the bypass to evaluate its efficiency. The mean percentage of detected smolts at the entrance varied from 26.2 to 39.7%. In 2014, 16.5% of the released smolts entered the bypass and were finally caught in the cage, representing 39% of the smolts detected at the entrance. More than 98% of the detections occurred during night (mainly between 9 PM and 3 AM). The searching delay near the bypass entrance varied from less than 5 min to more than 5 days (median 4.3 min). Visual observation indicated a behavioural reluctance before entering the bypass, with a shift from positive to negative rheotaxy. Our results underline the difficulty to install retrofitted bypass system on old existing hydropower plants. Copyright © 2016 John Wiley & Sons, Ltd. |
author2 |
AFFISH-RC - Applied and Fundamental FISH Research Center - ULiège FOCUS - Freshwater and OCeanic science Unit of reSearch - ULiège |
format |
Article in Journal/Newspaper |
author |
Ovidio, Michaël Dierckx, Arnaud Bunel, Sarah Grandry, Louise Spronck, Christelle Benitez, Jean-Philippe |
author_facet |
Ovidio, Michaël Dierckx, Arnaud Bunel, Sarah Grandry, Louise Spronck, Christelle Benitez, Jean-Philippe |
author_sort |
Ovidio, Michaël |
title |
Poor Performance of a Retrofitted Downstream Bypass Revealed by the Analysis of Approaching Behaviour in Combination with a Trapping System |
title_short |
Poor Performance of a Retrofitted Downstream Bypass Revealed by the Analysis of Approaching Behaviour in Combination with a Trapping System |
title_full |
Poor Performance of a Retrofitted Downstream Bypass Revealed by the Analysis of Approaching Behaviour in Combination with a Trapping System |
title_fullStr |
Poor Performance of a Retrofitted Downstream Bypass Revealed by the Analysis of Approaching Behaviour in Combination with a Trapping System |
title_full_unstemmed |
Poor Performance of a Retrofitted Downstream Bypass Revealed by the Analysis of Approaching Behaviour in Combination with a Trapping System |
title_sort |
poor performance of a retrofitted downstream bypass revealed by the analysis of approaching behaviour in combination with a trapping system |
publisher |
John Wiley & Sons, Inc |
publishDate |
2017 |
url |
https://orbi.uliege.be/handle/2268/200433 https://doi.org/10.1002/rra.3062 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
River Research and Applications, 33, 27-36 (2017) |
op_relation |
urn:issn:1535-1459 urn:issn:1535-1467 https://orbi.uliege.be/handle/2268/200433 info:hdl:2268/200433 doi:10.1002/rra.3062 scopus-id:2-s2.0-84978513692 |
op_rights |
restricted access http://purl.org/coar/access_right/c_16ec info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1002/rra.3062 |
container_title |
River Research and Applications |
container_volume |
33 |
container_issue |
1 |
container_start_page |
27 |
op_container_end_page |
36 |
_version_ |
1796939107753000960 |