Experimental Assessment of the Influence of Fish Passage Geometry Parameters on Downstream Migrating Atlantic Salmon (Salmo salar) Smolts Behavior
peer reviewed The fragmentation of rivers caused by the construction of dams and weirs disturbs fish migration and poses a threat to fish populations and aquatic biodiversity. Fish passages around hydraulic structures aim to restore river connectivity; however, the effective design of fish passages...
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Online Access: | https://orbi.uliege.be/handle/2268/289040 https://orbi.uliege.be/bitstream/2268/289040/1/water-14-00616.pdf https://doi.org/10.3390/w14040616 |
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ftorbi:oai:orbi.ulg.ac.be:2268/289040 2024-04-21T07:57:02+00:00 Experimental Assessment of the Influence of Fish Passage Geometry Parameters on Downstream Migrating Atlantic Salmon (Salmo salar) Smolts Behavior Erpicum, Sébastien Kitsikoudis, Vasileios Archambeau, Pierre Dewals, Benjamin Pirotton, Michel UEE - Urban and Environmental Engineering - ULiège 2022-02 https://orbi.uliege.be/handle/2268/289040 https://orbi.uliege.be/bitstream/2268/289040/1/water-14-00616.pdf https://doi.org/10.3390/w14040616 en eng MDPI https://www.mdpi.com/2073-4441/14/4/616/pdf urn:issn:2073-4441 https://orbi.uliege.be/handle/2268/289040 info:hdl:2268/289040 https://orbi.uliege.be/bitstream/2268/289040/1/water-14-00616.pdf doi:10.3390/w14040616 scopus-id:2-s2.0-85124946640 open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess Water, 14 (4), 616 (2022-02) Atlantic salmon Ecohydraulics Experimental hydraulics Fish migration Fish passage Hydraulic structures Down-stream Experimental assessment Experimental hydraulic Fish populations Geometry parameter Salmon Salmo salar Geography Planning and Development Biochemistry Aquatic Science Water Science and Technology Engineering computing & technology Civil engineering Ingénierie informatique & technologie Ingénierie civile journal article http://purl.org/coar/resource_type/c_6501 info:eu-repo/semantics/article peer reviewed 2022 ftorbi https://doi.org/10.3390/w14040616 2024-03-27T14:57:48Z peer reviewed The fragmentation of rivers caused by the construction of dams and weirs disturbs fish migration and poses a threat to fish populations and aquatic biodiversity. Fish passages around hydraulic structures aim to restore river connectivity; however, the effective design of fish passages is a challenging problem that depends on several processes. The present experimental study investigated how the characteristics of a trash rack at the entrance of a fish passage for downstream migration affects fish behavior and subsequently the effectiveness of the fish passage. A series of experiments was carried out to systematically analyze the behavior of Atlantic salmon smolts in a flume with two outlets featuring the same 1:1 physical model of the entrance of a downstream passage with or without a trash rack. The parameters that were tested were the spacing of the vertical round bars of the trash rack, the location of the trash rack at the fish passage, and the velocity gradient at the entrance of the passage. Aggregated results showed that only 34% of the fish selected the outlet with a trash rack to exit the flume while 66% preferred the unobstructed outlet. More fish swam through the outlet with the trash rack when the spacing of the vertical bars increased from 10 cm to 20 cm and when the rack was placed in the higher velocity region compared to the lower velocity one. These results show that a trash rack acts as an obstacle to Atlantic salmon smolts passing through a downstream passage. When possible, trash racks should be avoided at the entrance of downstream fish passages. 13. Climate action Article in Journal/Newspaper Atlantic salmon Salmo salar University of Liège: ORBi (Open Repository and Bibliography) Water 14 4 616 |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
Atlantic salmon Ecohydraulics Experimental hydraulics Fish migration Fish passage Hydraulic structures Down-stream Experimental assessment Experimental hydraulic Fish populations Geometry parameter Salmon Salmo salar Geography Planning and Development Biochemistry Aquatic Science Water Science and Technology Engineering computing & technology Civil engineering Ingénierie informatique & technologie Ingénierie civile |
spellingShingle |
Atlantic salmon Ecohydraulics Experimental hydraulics Fish migration Fish passage Hydraulic structures Down-stream Experimental assessment Experimental hydraulic Fish populations Geometry parameter Salmon Salmo salar Geography Planning and Development Biochemistry Aquatic Science Water Science and Technology Engineering computing & technology Civil engineering Ingénierie informatique & technologie Ingénierie civile Erpicum, Sébastien Kitsikoudis, Vasileios Archambeau, Pierre Dewals, Benjamin Pirotton, Michel Experimental Assessment of the Influence of Fish Passage Geometry Parameters on Downstream Migrating Atlantic Salmon (Salmo salar) Smolts Behavior |
topic_facet |
Atlantic salmon Ecohydraulics Experimental hydraulics Fish migration Fish passage Hydraulic structures Down-stream Experimental assessment Experimental hydraulic Fish populations Geometry parameter Salmon Salmo salar Geography Planning and Development Biochemistry Aquatic Science Water Science and Technology Engineering computing & technology Civil engineering Ingénierie informatique & technologie Ingénierie civile |
description |
peer reviewed The fragmentation of rivers caused by the construction of dams and weirs disturbs fish migration and poses a threat to fish populations and aquatic biodiversity. Fish passages around hydraulic structures aim to restore river connectivity; however, the effective design of fish passages is a challenging problem that depends on several processes. The present experimental study investigated how the characteristics of a trash rack at the entrance of a fish passage for downstream migration affects fish behavior and subsequently the effectiveness of the fish passage. A series of experiments was carried out to systematically analyze the behavior of Atlantic salmon smolts in a flume with two outlets featuring the same 1:1 physical model of the entrance of a downstream passage with or without a trash rack. The parameters that were tested were the spacing of the vertical round bars of the trash rack, the location of the trash rack at the fish passage, and the velocity gradient at the entrance of the passage. Aggregated results showed that only 34% of the fish selected the outlet with a trash rack to exit the flume while 66% preferred the unobstructed outlet. More fish swam through the outlet with the trash rack when the spacing of the vertical bars increased from 10 cm to 20 cm and when the rack was placed in the higher velocity region compared to the lower velocity one. These results show that a trash rack acts as an obstacle to Atlantic salmon smolts passing through a downstream passage. When possible, trash racks should be avoided at the entrance of downstream fish passages. 13. Climate action |
author2 |
UEE - Urban and Environmental Engineering - ULiège |
format |
Article in Journal/Newspaper |
author |
Erpicum, Sébastien Kitsikoudis, Vasileios Archambeau, Pierre Dewals, Benjamin Pirotton, Michel |
author_facet |
Erpicum, Sébastien Kitsikoudis, Vasileios Archambeau, Pierre Dewals, Benjamin Pirotton, Michel |
author_sort |
Erpicum, Sébastien |
title |
Experimental Assessment of the Influence of Fish Passage Geometry Parameters on Downstream Migrating Atlantic Salmon (Salmo salar) Smolts Behavior |
title_short |
Experimental Assessment of the Influence of Fish Passage Geometry Parameters on Downstream Migrating Atlantic Salmon (Salmo salar) Smolts Behavior |
title_full |
Experimental Assessment of the Influence of Fish Passage Geometry Parameters on Downstream Migrating Atlantic Salmon (Salmo salar) Smolts Behavior |
title_fullStr |
Experimental Assessment of the Influence of Fish Passage Geometry Parameters on Downstream Migrating Atlantic Salmon (Salmo salar) Smolts Behavior |
title_full_unstemmed |
Experimental Assessment of the Influence of Fish Passage Geometry Parameters on Downstream Migrating Atlantic Salmon (Salmo salar) Smolts Behavior |
title_sort |
experimental assessment of the influence of fish passage geometry parameters on downstream migrating atlantic salmon (salmo salar) smolts behavior |
publisher |
MDPI |
publishDate |
2022 |
url |
https://orbi.uliege.be/handle/2268/289040 https://orbi.uliege.be/bitstream/2268/289040/1/water-14-00616.pdf https://doi.org/10.3390/w14040616 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Water, 14 (4), 616 (2022-02) |
op_relation |
https://www.mdpi.com/2073-4441/14/4/616/pdf urn:issn:2073-4441 https://orbi.uliege.be/handle/2268/289040 info:hdl:2268/289040 https://orbi.uliege.be/bitstream/2268/289040/1/water-14-00616.pdf doi:10.3390/w14040616 scopus-id:2-s2.0-85124946640 |
op_rights |
open access http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3390/w14040616 |
container_title |
Water |
container_volume |
14 |
container_issue |
4 |
container_start_page |
616 |
_version_ |
1796938823947517952 |