Migration strategies of brown trout (Salmo trutta) in a subarctic river system as revealed by stable isotope analysis
We estimated the proportions of anadromous and freshwater‐resident brown trout (Salmo trutta) in different parts of the subarctic River Näätämöjoki/Neidenelva system (Finland and Norway) using carbon, nitrogen and hydrogen stable isotope analyses of archived scales as identifiers of migration strate...
Published in: | Ecology of Freshwater Fish |
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Language: | English |
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2019
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Online Access: | http://urn.fi/URN:NBN:fi:jyu-201904182215 |
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ftjyvaeskylaenun:oai:jyx.jyu.fi:123456789/63560 2024-02-04T10:04:50+01:00 Migration strategies of brown trout (Salmo trutta) in a subarctic river system as revealed by stable isotope analysis Ruokonen, Timo Kiljunen, Mikko Erkinaro, Jaakko Orell, Panu Sivonen, Olli Vestola, Eero Jones, Roger 2019 application/pdf 53-61 fulltext http://urn.fi/URN:NBN:fi:jyu-201904182215 eng eng Wiley-Blackwell Publishing, Inc. Ecology of Freshwater Fish 0906-6691 1 28 10.1111/eff.12426 Ruokonen, T., Kiljunen, M., Erkinaro, J., Orell, P., Sivonen, O., Vestola, E., & Jones, R. (2019). Migration strategies of brown trout (Salmo trutta) in a subarctic river system as revealed by stable isotope analysis. Ecology of Freshwater Fish , 28 (1), 53-61. https://doi.org/10.1111/eff.12426 CONVID_28168247 TUTKAID_78299 URN:NBN:fi:jyu-201904182215 http://urn.fi/URN:NBN:fi:jyu-201904182215 In Copyright © 2018 John Wiley & Sons A/S. openAccess http://rightsstatements.org/page/InC/1.0/?language=en anadromy life-history strategies partial migration residency salmonid taimen vaelluskalat migraatio (biologia) article http://purl.org/eprint/type/JournalArticle http://purl.org/coar/resource_type/c_2df8fbb1 acceptedVersion A1 2019 ftjyvaeskylaenun 2024-01-11T00:03:19Z We estimated the proportions of anadromous and freshwater‐resident brown trout (Salmo trutta) in different parts of the subarctic River Näätämöjoki/Neidenelva system (Finland and Norway) using carbon, nitrogen and hydrogen stable isotope analyses of archived scales as identifiers of migration strategy. Our results showed that carbon stable isotope values were the best predictor of migration strategy. Most individuals fell into two clearly distinct groups representing anadromous (47%) or freshwater‐resident (42%) individuals, but some fish had intermediate carbon values suggesting repeated movement between freshwater and the sea. The proportion of anadromous individuals decreased steadily with distance from the sea forming a spatial continuum in migration strategies which is probably maintained by the combination of several factors such as divergent availability of food resources, variable migration costs and genetic differences. These within‐catchment differences in migration strategies should be taken into account in fisheries management practices. peerReviewed Article in Journal/Newspaper Subarctic JYX - Jyväskylä University Digital Archive Neidenelva ENVELOPE(29.547,29.547,69.698,69.698) Norway Ecology of Freshwater Fish 28 1 53 61 |
institution |
Open Polar |
collection |
JYX - Jyväskylä University Digital Archive |
op_collection_id |
ftjyvaeskylaenun |
language |
English |
topic |
anadromy life-history strategies partial migration residency salmonid taimen vaelluskalat migraatio (biologia) |
spellingShingle |
anadromy life-history strategies partial migration residency salmonid taimen vaelluskalat migraatio (biologia) Ruokonen, Timo Kiljunen, Mikko Erkinaro, Jaakko Orell, Panu Sivonen, Olli Vestola, Eero Jones, Roger Migration strategies of brown trout (Salmo trutta) in a subarctic river system as revealed by stable isotope analysis |
topic_facet |
anadromy life-history strategies partial migration residency salmonid taimen vaelluskalat migraatio (biologia) |
description |
We estimated the proportions of anadromous and freshwater‐resident brown trout (Salmo trutta) in different parts of the subarctic River Näätämöjoki/Neidenelva system (Finland and Norway) using carbon, nitrogen and hydrogen stable isotope analyses of archived scales as identifiers of migration strategy. Our results showed that carbon stable isotope values were the best predictor of migration strategy. Most individuals fell into two clearly distinct groups representing anadromous (47%) or freshwater‐resident (42%) individuals, but some fish had intermediate carbon values suggesting repeated movement between freshwater and the sea. The proportion of anadromous individuals decreased steadily with distance from the sea forming a spatial continuum in migration strategies which is probably maintained by the combination of several factors such as divergent availability of food resources, variable migration costs and genetic differences. These within‐catchment differences in migration strategies should be taken into account in fisheries management practices. peerReviewed |
format |
Article in Journal/Newspaper |
author |
Ruokonen, Timo Kiljunen, Mikko Erkinaro, Jaakko Orell, Panu Sivonen, Olli Vestola, Eero Jones, Roger |
author_facet |
Ruokonen, Timo Kiljunen, Mikko Erkinaro, Jaakko Orell, Panu Sivonen, Olli Vestola, Eero Jones, Roger |
author_sort |
Ruokonen, Timo |
title |
Migration strategies of brown trout (Salmo trutta) in a subarctic river system as revealed by stable isotope analysis |
title_short |
Migration strategies of brown trout (Salmo trutta) in a subarctic river system as revealed by stable isotope analysis |
title_full |
Migration strategies of brown trout (Salmo trutta) in a subarctic river system as revealed by stable isotope analysis |
title_fullStr |
Migration strategies of brown trout (Salmo trutta) in a subarctic river system as revealed by stable isotope analysis |
title_full_unstemmed |
Migration strategies of brown trout (Salmo trutta) in a subarctic river system as revealed by stable isotope analysis |
title_sort |
migration strategies of brown trout (salmo trutta) in a subarctic river system as revealed by stable isotope analysis |
publisher |
Wiley-Blackwell Publishing, Inc. |
publishDate |
2019 |
url |
http://urn.fi/URN:NBN:fi:jyu-201904182215 |
long_lat |
ENVELOPE(29.547,29.547,69.698,69.698) |
geographic |
Neidenelva Norway |
geographic_facet |
Neidenelva Norway |
genre |
Subarctic |
genre_facet |
Subarctic |
op_relation |
Ecology of Freshwater Fish 0906-6691 1 28 10.1111/eff.12426 Ruokonen, T., Kiljunen, M., Erkinaro, J., Orell, P., Sivonen, O., Vestola, E., & Jones, R. (2019). Migration strategies of brown trout (Salmo trutta) in a subarctic river system as revealed by stable isotope analysis. Ecology of Freshwater Fish , 28 (1), 53-61. https://doi.org/10.1111/eff.12426 CONVID_28168247 TUTKAID_78299 URN:NBN:fi:jyu-201904182215 http://urn.fi/URN:NBN:fi:jyu-201904182215 |
op_rights |
In Copyright © 2018 John Wiley & Sons A/S. openAccess http://rightsstatements.org/page/InC/1.0/?language=en |
container_title |
Ecology of Freshwater Fish |
container_volume |
28 |
container_issue |
1 |
container_start_page |
53 |
op_container_end_page |
61 |
_version_ |
1789973582711881728 |