Environmental and anthropogenic correlates of migratory speeds among Atlantic salmon smolts
Dams, weirs, and hydropower facilities are often cited as migratory barriers which impart significant reductions in fitness among migratory fish species. Even where upstream and downstream passage options are available, barrier passage can still often result in energetic or physical costs which comp...
Published in: | River Research and Applications |
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Karlstads universitet, Institutionen för miljö- och livsvetenskaper (from 2013)
2021
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Online Access: | http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-82500 https://doi.org/10.1002/rra.3760 |
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ftkarlstadsuniv:oai:DiVA.org:kau-82500 2023-07-16T03:57:30+02:00 Environmental and anthropogenic correlates of migratory speeds among Atlantic salmon smolts Harbicht, Andrew Nilsson, Per Anders Österling, Martin Calles, Olle 2021 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-82500 https://doi.org/10.1002/rra.3760 eng eng Karlstads universitet, Institutionen för miljö- och livsvetenskaper (from 2013) Rivers Research and Applications : an international journal devoted to river research and management, 1535-1459, 2021, 37:3, s. 358-372 orcid:0000-0002-3541-9835 orcid:0000-0001-6758-5857 orcid:0000-0002-8738-8815 http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-82500 doi:10.1002/rra.3760 ISI:000601923900001 Scopus 2-s2.0-85098069592 info:eu-repo/semantics/openAccess anthropogenic delay migration barriers Salmo salar smolt time‐ to‐ event analysis Biological Sciences Biologiska vetenskaper Article in journal info:eu-repo/semantics/article text 2021 ftkarlstadsuniv https://doi.org/10.1002/rra.3760 2023-06-26T22:13:05Z Dams, weirs, and hydropower facilities are often cited as migratory barriers which impart significant reductions in fitness among migratory fish species. Even where upstream and downstream passage options are available, barrier passage can still often result in energetic or physical costs which compound delays or cause mortality. Past studies have identified variables associated with such fitness reductions, though few examine their effects in the context of the whole river scale. To this end, we assessed the migratory rates and downstream passage of radio-tagged Atlantic salmon (Salmo salar) smolts through nine river sections (including two reservoir sections and one dammed section) along a 20 km stretch of river. Migration stoppages were not found to be elevated in reservoir or dammed sections, while migration rates were best described by physical river properties (width), biological traits (smolt total length), and seasonal variables (diel period) rather than anthropogenic factors. These results suggest the negative effect of reservoirs may primarily be due to their influence on river width and may be negligible when width is largely unaffected by an impoundment. Similarly, spilling water during fish migrations as a mitigative measure appears to make delays negligible. These conditions and actions may not completely marginalize the effect of dams, however, as a negative trend was still observed resulting from passage effects at the dam. Article in Journal/Newspaper Atlantic salmon Salmo salar Karlstad University: Publications (DIVA) River Research and Applications 37 3 358 372 |
institution |
Open Polar |
collection |
Karlstad University: Publications (DIVA) |
op_collection_id |
ftkarlstadsuniv |
language |
English |
topic |
anthropogenic delay migration barriers Salmo salar smolt time‐ to‐ event analysis Biological Sciences Biologiska vetenskaper |
spellingShingle |
anthropogenic delay migration barriers Salmo salar smolt time‐ to‐ event analysis Biological Sciences Biologiska vetenskaper Harbicht, Andrew Nilsson, Per Anders Österling, Martin Calles, Olle Environmental and anthropogenic correlates of migratory speeds among Atlantic salmon smolts |
topic_facet |
anthropogenic delay migration barriers Salmo salar smolt time‐ to‐ event analysis Biological Sciences Biologiska vetenskaper |
description |
Dams, weirs, and hydropower facilities are often cited as migratory barriers which impart significant reductions in fitness among migratory fish species. Even where upstream and downstream passage options are available, barrier passage can still often result in energetic or physical costs which compound delays or cause mortality. Past studies have identified variables associated with such fitness reductions, though few examine their effects in the context of the whole river scale. To this end, we assessed the migratory rates and downstream passage of radio-tagged Atlantic salmon (Salmo salar) smolts through nine river sections (including two reservoir sections and one dammed section) along a 20 km stretch of river. Migration stoppages were not found to be elevated in reservoir or dammed sections, while migration rates were best described by physical river properties (width), biological traits (smolt total length), and seasonal variables (diel period) rather than anthropogenic factors. These results suggest the negative effect of reservoirs may primarily be due to their influence on river width and may be negligible when width is largely unaffected by an impoundment. Similarly, spilling water during fish migrations as a mitigative measure appears to make delays negligible. These conditions and actions may not completely marginalize the effect of dams, however, as a negative trend was still observed resulting from passage effects at the dam. |
format |
Article in Journal/Newspaper |
author |
Harbicht, Andrew Nilsson, Per Anders Österling, Martin Calles, Olle |
author_facet |
Harbicht, Andrew Nilsson, Per Anders Österling, Martin Calles, Olle |
author_sort |
Harbicht, Andrew |
title |
Environmental and anthropogenic correlates of migratory speeds among Atlantic salmon smolts |
title_short |
Environmental and anthropogenic correlates of migratory speeds among Atlantic salmon smolts |
title_full |
Environmental and anthropogenic correlates of migratory speeds among Atlantic salmon smolts |
title_fullStr |
Environmental and anthropogenic correlates of migratory speeds among Atlantic salmon smolts |
title_full_unstemmed |
Environmental and anthropogenic correlates of migratory speeds among Atlantic salmon smolts |
title_sort |
environmental and anthropogenic correlates of migratory speeds among atlantic salmon smolts |
publisher |
Karlstads universitet, Institutionen för miljö- och livsvetenskaper (from 2013) |
publishDate |
2021 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-82500 https://doi.org/10.1002/rra.3760 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
Rivers Research and Applications : an international journal devoted to river research and management, 1535-1459, 2021, 37:3, s. 358-372 orcid:0000-0002-3541-9835 orcid:0000-0001-6758-5857 orcid:0000-0002-8738-8815 http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-82500 doi:10.1002/rra.3760 ISI:000601923900001 Scopus 2-s2.0-85098069592 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1002/rra.3760 |
container_title |
River Research and Applications |
container_volume |
37 |
container_issue |
3 |
container_start_page |
358 |
op_container_end_page |
372 |
_version_ |
1771544105731489792 |