Can aspects of the discharge regime associated with juvenile Atlantic salmon (Salmo salar L.) and trout (S. trutta L.) densities be identified using historical monitoring data from five UK rivers?
Understanding salmonid discharge requirements can help inform management to conserve wild populations in a changing climate. This study developed Bayesian hierarchical mixed-effects models relating 0+ Atlantic salmon (Salmo salar L.) and trout (Salmo trutta L.) densities to different aspects of rive...
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ftunivbournem:oai:eprints.bournemouth.ac.uk:39397 2024-02-11T10:02:06+01:00 Can aspects of the discharge regime associated with juvenile Atlantic salmon (Salmo salar L.) and trout (S. trutta L.) densities be identified using historical monitoring data from five UK rivers? Gillson, J. P. Maxwell, D. L. Gregory, Stephen D. Posen, P. E. Riley, W. D. Picken, J. L. Assunção, M. G. L. 2020-10-06 application/pdf http://eprints.bournemouth.ac.uk/39397/ https://eprints.bournemouth.ac.uk/39397/7/Fisheries%20Management%20Eco%20-%202020%20-%20Gillson%20-%20Can%20aspects%20of%20the%20discharge%20regime%20associated%20with%20juvenile%20Atlantic%20salmon%20.pdf en eng https://eprints.bournemouth.ac.uk/39397/7/Fisheries%20Management%20Eco%20-%202020%20-%20Gillson%20-%20Can%20aspects%20of%20the%20discharge%20regime%20associated%20with%20juvenile%20Atlantic%20salmon%20.pdf Gillson, J. P., Maxwell, D. L., Gregory, S. D., Posen, P. E., Riley, W. D., Picken, J. L. and Assunção, M. G. L., 2020. Can aspects of the discharge regime associated with juvenile Atlantic salmon (Salmo salar L.) and trout (S. trutta L.) densities be identified using historical monitoring data from five UK rivers? Fisheries Management and Ecology, 27 (6), 567-579. cc_by_4 Article PeerReviewed 2020 ftunivbournem 2024-01-19T00:07:02Z Understanding salmonid discharge requirements can help inform management to conserve wild populations in a changing climate. This study developed Bayesian hierarchical mixed-effects models relating 0+ Atlantic salmon (Salmo salar L.) and trout (Salmo trutta L.) densities to different aspects of river discharge. Associations between these densities and nine hydrological variables representing the magnitude, frequency and duration of discharge events were evaluated using historical monitoring data from 36 sites on five rivers in England and Wales. All hydrological variables had weak associations with 0+ salmonid densities. More frequent high discharges between spawning and emergence were positively and negatively associated with 0+ salmon and trout densities, respectively. High discharges might increase spawning site availability for salmon and decrease egg-to-fry survival for trout. However, overall, only equivocal evidence was found regarding which discharge aspects affect juvenile salmonid densities. Therefore, a strategic review of juvenile salmonid monitoring programmes integrating environmental data collection is recommended. Article in Journal/Newspaper Atlantic salmon Salmo salar Bournemouth University Research Online (BURO) |
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Open Polar |
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Bournemouth University Research Online (BURO) |
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ftunivbournem |
language |
English |
description |
Understanding salmonid discharge requirements can help inform management to conserve wild populations in a changing climate. This study developed Bayesian hierarchical mixed-effects models relating 0+ Atlantic salmon (Salmo salar L.) and trout (Salmo trutta L.) densities to different aspects of river discharge. Associations between these densities and nine hydrological variables representing the magnitude, frequency and duration of discharge events were evaluated using historical monitoring data from 36 sites on five rivers in England and Wales. All hydrological variables had weak associations with 0+ salmonid densities. More frequent high discharges between spawning and emergence were positively and negatively associated with 0+ salmon and trout densities, respectively. High discharges might increase spawning site availability for salmon and decrease egg-to-fry survival for trout. However, overall, only equivocal evidence was found regarding which discharge aspects affect juvenile salmonid densities. Therefore, a strategic review of juvenile salmonid monitoring programmes integrating environmental data collection is recommended. |
format |
Article in Journal/Newspaper |
author |
Gillson, J. P. Maxwell, D. L. Gregory, Stephen D. Posen, P. E. Riley, W. D. Picken, J. L. Assunção, M. G. L. |
spellingShingle |
Gillson, J. P. Maxwell, D. L. Gregory, Stephen D. Posen, P. E. Riley, W. D. Picken, J. L. Assunção, M. G. L. Can aspects of the discharge regime associated with juvenile Atlantic salmon (Salmo salar L.) and trout (S. trutta L.) densities be identified using historical monitoring data from five UK rivers? |
author_facet |
Gillson, J. P. Maxwell, D. L. Gregory, Stephen D. Posen, P. E. Riley, W. D. Picken, J. L. Assunção, M. G. L. |
author_sort |
Gillson, J. P. |
title |
Can aspects of the discharge regime associated with juvenile Atlantic salmon (Salmo salar L.) and trout (S. trutta L.) densities be identified using historical monitoring data from five UK rivers? |
title_short |
Can aspects of the discharge regime associated with juvenile Atlantic salmon (Salmo salar L.) and trout (S. trutta L.) densities be identified using historical monitoring data from five UK rivers? |
title_full |
Can aspects of the discharge regime associated with juvenile Atlantic salmon (Salmo salar L.) and trout (S. trutta L.) densities be identified using historical monitoring data from five UK rivers? |
title_fullStr |
Can aspects of the discharge regime associated with juvenile Atlantic salmon (Salmo salar L.) and trout (S. trutta L.) densities be identified using historical monitoring data from five UK rivers? |
title_full_unstemmed |
Can aspects of the discharge regime associated with juvenile Atlantic salmon (Salmo salar L.) and trout (S. trutta L.) densities be identified using historical monitoring data from five UK rivers? |
title_sort |
can aspects of the discharge regime associated with juvenile atlantic salmon (salmo salar l.) and trout (s. trutta l.) densities be identified using historical monitoring data from five uk rivers? |
publishDate |
2020 |
url |
http://eprints.bournemouth.ac.uk/39397/ https://eprints.bournemouth.ac.uk/39397/7/Fisheries%20Management%20Eco%20-%202020%20-%20Gillson%20-%20Can%20aspects%20of%20the%20discharge%20regime%20associated%20with%20juvenile%20Atlantic%20salmon%20.pdf |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
https://eprints.bournemouth.ac.uk/39397/7/Fisheries%20Management%20Eco%20-%202020%20-%20Gillson%20-%20Can%20aspects%20of%20the%20discharge%20regime%20associated%20with%20juvenile%20Atlantic%20salmon%20.pdf Gillson, J. P., Maxwell, D. L., Gregory, S. D., Posen, P. E., Riley, W. D., Picken, J. L. and Assunção, M. G. L., 2020. Can aspects of the discharge regime associated with juvenile Atlantic salmon (Salmo salar L.) and trout (S. trutta L.) densities be identified using historical monitoring data from five UK rivers? Fisheries Management and Ecology, 27 (6), 567-579. |
op_rights |
cc_by_4 |
_version_ |
1790597994632970240 |