Potential of Otolith Microchemistry to Distinguish Nursery Areas of Salmon within River Simojoki
Draining into the northern Baltic Sea, River Simojoki is an important spawning river for Atlantic salmon. The present study aimed to preliminary explore the potential of analysing the elemental composition of otoliths to distinguish the within-river nursery area of origin for salmon. Parr were sampl...
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2023
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Online Access: | https://research.abo.fi/en/publications/7e4ee533-9148-46d3-b0d9-745c82ac9090 https://doi.org/10.3390/fishes8060332 https://research.abo.fi/ws/files/57142341/fishes-08-00332-v2.pdf https://www.mdpi.com/2410-3888/8/6/332 https://urn.fi/URN:NBN:fi-fe20231120147668 |
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ftaboakademicris:oai:pure.atira.dk:publications/7e4ee533-9148-46d3-b0d9-745c82ac9090 2024-06-16T07:38:49+00:00 Potential of Otolith Microchemistry to Distinguish Nursery Areas of Salmon within River Simojoki Finnäs, Viktor Jokikokko, Erkki Lill, Jan-Olof Lahaye, Yann Hägerstrand, Henry Lindström, Kai 2023-06-20 application/pdf https://research.abo.fi/en/publications/7e4ee533-9148-46d3-b0d9-745c82ac9090 https://doi.org/10.3390/fishes8060332 https://research.abo.fi/ws/files/57142341/fishes-08-00332-v2.pdf https://www.mdpi.com/2410-3888/8/6/332 https://urn.fi/URN:NBN:fi-fe20231120147668 eng eng https://research.abo.fi/en/publications/7e4ee533-9148-46d3-b0d9-745c82ac9090 info:eu-repo/semantics/openAccess Finnäs , V , Jokikokko , E , Lill , J-O , Lahaye , Y , Hägerstrand , H & Lindström , K 2023 , ' Potential of Otolith Microchemistry to Distinguish Nursery Areas of Salmon within River Simojoki ' , Fishes , vol. 8 , no. 6 , 332 . https://doi.org/10.3390/fishes8060332 article 2023 ftaboakademicris https://doi.org/10.3390/fishes8060332 2024-05-22T23:35:55Z Draining into the northern Baltic Sea, River Simojoki is an important spawning river for Atlantic salmon. The present study aimed to preliminary explore the potential of analysing the elemental composition of otoliths to distinguish the within-river nursery area of origin for salmon. Parr were sampled at three nursery areas in the river and smolts of unknown origin were sampled near the river mouth during the migration to the sea. The concentrations of multiple elements and the strontium 87 Sr/ 86 Sr isotopic ratio in the otoliths were analysed using single- and multi-collector laser ablation inductively coupled plasma mass spectrometry, respectively. Based on the otolith elemental variables, parr could be reclassified to the sampled nursery areas using discriminant function analysis and random forest with a success rate of 53.3% and 63.3%, respectively. However, for parr sampled at the uppermost nursery area in the river, the success rates were 90% and 100%, respectively. Applying the classification models trained on the parr samples to determine which nursery area sampled smolt originated from was constrained by the limited sampling of parr, both in sample sizes and the coverage of the nursery areas found in the river. Article in Journal/Newspaper Atlantic salmon Åbo Akademi University Research Portal Simojoki ENVELOPE(25.050,25.050,65.617,65.617) Fishes 8 6 332 |
institution |
Open Polar |
collection |
Åbo Akademi University Research Portal |
op_collection_id |
ftaboakademicris |
language |
English |
description |
Draining into the northern Baltic Sea, River Simojoki is an important spawning river for Atlantic salmon. The present study aimed to preliminary explore the potential of analysing the elemental composition of otoliths to distinguish the within-river nursery area of origin for salmon. Parr were sampled at three nursery areas in the river and smolts of unknown origin were sampled near the river mouth during the migration to the sea. The concentrations of multiple elements and the strontium 87 Sr/ 86 Sr isotopic ratio in the otoliths were analysed using single- and multi-collector laser ablation inductively coupled plasma mass spectrometry, respectively. Based on the otolith elemental variables, parr could be reclassified to the sampled nursery areas using discriminant function analysis and random forest with a success rate of 53.3% and 63.3%, respectively. However, for parr sampled at the uppermost nursery area in the river, the success rates were 90% and 100%, respectively. Applying the classification models trained on the parr samples to determine which nursery area sampled smolt originated from was constrained by the limited sampling of parr, both in sample sizes and the coverage of the nursery areas found in the river. |
format |
Article in Journal/Newspaper |
author |
Finnäs, Viktor Jokikokko, Erkki Lill, Jan-Olof Lahaye, Yann Hägerstrand, Henry Lindström, Kai |
spellingShingle |
Finnäs, Viktor Jokikokko, Erkki Lill, Jan-Olof Lahaye, Yann Hägerstrand, Henry Lindström, Kai Potential of Otolith Microchemistry to Distinguish Nursery Areas of Salmon within River Simojoki |
author_facet |
Finnäs, Viktor Jokikokko, Erkki Lill, Jan-Olof Lahaye, Yann Hägerstrand, Henry Lindström, Kai |
author_sort |
Finnäs, Viktor |
title |
Potential of Otolith Microchemistry to Distinguish Nursery Areas of Salmon within River Simojoki |
title_short |
Potential of Otolith Microchemistry to Distinguish Nursery Areas of Salmon within River Simojoki |
title_full |
Potential of Otolith Microchemistry to Distinguish Nursery Areas of Salmon within River Simojoki |
title_fullStr |
Potential of Otolith Microchemistry to Distinguish Nursery Areas of Salmon within River Simojoki |
title_full_unstemmed |
Potential of Otolith Microchemistry to Distinguish Nursery Areas of Salmon within River Simojoki |
title_sort |
potential of otolith microchemistry to distinguish nursery areas of salmon within river simojoki |
publishDate |
2023 |
url |
https://research.abo.fi/en/publications/7e4ee533-9148-46d3-b0d9-745c82ac9090 https://doi.org/10.3390/fishes8060332 https://research.abo.fi/ws/files/57142341/fishes-08-00332-v2.pdf https://www.mdpi.com/2410-3888/8/6/332 https://urn.fi/URN:NBN:fi-fe20231120147668 |
long_lat |
ENVELOPE(25.050,25.050,65.617,65.617) |
geographic |
Simojoki |
geographic_facet |
Simojoki |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_source |
Finnäs , V , Jokikokko , E , Lill , J-O , Lahaye , Y , Hägerstrand , H & Lindström , K 2023 , ' Potential of Otolith Microchemistry to Distinguish Nursery Areas of Salmon within River Simojoki ' , Fishes , vol. 8 , no. 6 , 332 . https://doi.org/10.3390/fishes8060332 |
op_relation |
https://research.abo.fi/en/publications/7e4ee533-9148-46d3-b0d9-745c82ac9090 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3390/fishes8060332 |
container_title |
Fishes |
container_volume |
8 |
container_issue |
6 |
container_start_page |
332 |
_version_ |
1802005542053347328 |