Validation of a Swimming Direction Model for the Downstream Migration of Atlantic Salmon Smolts
Fish swimming performance is strongly influenced by flow hydrodynamics, but little is known about the relation between fine-scale fish movements and hydrodynamics based on in-situ investigations. In the presented study, we validated the etho-hydraulic fish swimming direction model presented in the R...
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Online Access: | https://hdl.handle.net/11250/2740548 https://doi.org/10.3390/w13091230 |
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ftntnutrondheimi:oai:ntnuopen.ntnu.no:11250/2740548 2023-05-15T15:32:28+02:00 Validation of a Swimming Direction Model for the Downstream Migration of Atlantic Salmon Smolts Szabo-Meszaros, Marcell Silva, Ana T. Bærum, Kim Magnus Baktoft, Henrik Alfredsen, Knut Hedger, Richard David Økland, Finn Gjelland, Karl Øystein Fjeldstad, Hans-Petter Calles, Olle Forseth, Torbjørn 2021 application/pdf https://hdl.handle.net/11250/2740548 https://doi.org/10.3390/w13091230 eng eng MDPI Norges forskningsråd: 244022 Norges forskningsråd: 257588 urn:issn:2073-4441 https://hdl.handle.net/11250/2740548 https://doi.org/10.3390/w13091230 cristin:1907160 Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no CC-BY 13 Water 9 Peer reviewed Journal article 2021 ftntnutrondheimi https://doi.org/10.3390/w13091230 2021-05-12T22:34:42Z Fish swimming performance is strongly influenced by flow hydrodynamics, but little is known about the relation between fine-scale fish movements and hydrodynamics based on in-situ investigations. In the presented study, we validated the etho-hydraulic fish swimming direction model presented in the River Mandal from Southern Norway, using similar behavioral and hydraulic data on salmon smolts from the River Orkla in Central Norway. The re-parametrized model explained the variation of the swimming direction of fish in the Orkla system in same degree as the original model performed in the Mandal system (R2: 84% in both cases). The transferability of the model when using it from one river to predict swimming direction in the other river was lower (R2: 21% and 26%), but nevertheless relatively high given that the two localities differed in hydraulic conditions. The analyses thus provide support for the fact that the identified hydraulic parameters and their interaction affected smolt behavior in a similar way at the two sites, but that local parametrization of the base model is required. The developed etho-hydraulic models can provide important insights into fish behavior and fish migration trajectories and can be developed into prediction models important for the future development of behavioral downstream migration solutions. publishedVersion Article in Journal/Newspaper Atlantic salmon NTNU Open Archive (Norwegian University of Science and Technology) Norway Orkla ENVELOPE(9.831,9.831,63.311,63.311) Water 13 9 1230 |
institution |
Open Polar |
collection |
NTNU Open Archive (Norwegian University of Science and Technology) |
op_collection_id |
ftntnutrondheimi |
language |
English |
description |
Fish swimming performance is strongly influenced by flow hydrodynamics, but little is known about the relation between fine-scale fish movements and hydrodynamics based on in-situ investigations. In the presented study, we validated the etho-hydraulic fish swimming direction model presented in the River Mandal from Southern Norway, using similar behavioral and hydraulic data on salmon smolts from the River Orkla in Central Norway. The re-parametrized model explained the variation of the swimming direction of fish in the Orkla system in same degree as the original model performed in the Mandal system (R2: 84% in both cases). The transferability of the model when using it from one river to predict swimming direction in the other river was lower (R2: 21% and 26%), but nevertheless relatively high given that the two localities differed in hydraulic conditions. The analyses thus provide support for the fact that the identified hydraulic parameters and their interaction affected smolt behavior in a similar way at the two sites, but that local parametrization of the base model is required. The developed etho-hydraulic models can provide important insights into fish behavior and fish migration trajectories and can be developed into prediction models important for the future development of behavioral downstream migration solutions. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Szabo-Meszaros, Marcell Silva, Ana T. Bærum, Kim Magnus Baktoft, Henrik Alfredsen, Knut Hedger, Richard David Økland, Finn Gjelland, Karl Øystein Fjeldstad, Hans-Petter Calles, Olle Forseth, Torbjørn |
spellingShingle |
Szabo-Meszaros, Marcell Silva, Ana T. Bærum, Kim Magnus Baktoft, Henrik Alfredsen, Knut Hedger, Richard David Økland, Finn Gjelland, Karl Øystein Fjeldstad, Hans-Petter Calles, Olle Forseth, Torbjørn Validation of a Swimming Direction Model for the Downstream Migration of Atlantic Salmon Smolts |
author_facet |
Szabo-Meszaros, Marcell Silva, Ana T. Bærum, Kim Magnus Baktoft, Henrik Alfredsen, Knut Hedger, Richard David Økland, Finn Gjelland, Karl Øystein Fjeldstad, Hans-Petter Calles, Olle Forseth, Torbjørn |
author_sort |
Szabo-Meszaros, Marcell |
title |
Validation of a Swimming Direction Model for the Downstream Migration of Atlantic Salmon Smolts |
title_short |
Validation of a Swimming Direction Model for the Downstream Migration of Atlantic Salmon Smolts |
title_full |
Validation of a Swimming Direction Model for the Downstream Migration of Atlantic Salmon Smolts |
title_fullStr |
Validation of a Swimming Direction Model for the Downstream Migration of Atlantic Salmon Smolts |
title_full_unstemmed |
Validation of a Swimming Direction Model for the Downstream Migration of Atlantic Salmon Smolts |
title_sort |
validation of a swimming direction model for the downstream migration of atlantic salmon smolts |
publisher |
MDPI |
publishDate |
2021 |
url |
https://hdl.handle.net/11250/2740548 https://doi.org/10.3390/w13091230 |
long_lat |
ENVELOPE(9.831,9.831,63.311,63.311) |
geographic |
Norway Orkla |
geographic_facet |
Norway Orkla |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_source |
13 Water 9 |
op_relation |
Norges forskningsråd: 244022 Norges forskningsråd: 257588 urn:issn:2073-4441 https://hdl.handle.net/11250/2740548 https://doi.org/10.3390/w13091230 cristin:1907160 |
op_rights |
Navngivelse 4.0 Internasjonal http://creativecommons.org/licenses/by/4.0/deed.no |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3390/w13091230 |
container_title |
Water |
container_volume |
13 |
container_issue |
9 |
container_start_page |
1230 |
_version_ |
1766362960642441216 |