Migratory connectivity of two Baltic Sea salmon populations: retrospective analysis using stable isotopes of scales
Abstract Torniainen, J., Vuorinen, P. J., Jones, R. I., Keinänen, M., Palm, S., Vuori, K. A. M., and Kiljunen, M. 2014. Migratory connectivity of two Baltic Sea salmon populations: retrospective analysis using stable isotopes of scales. – ICES Journal of Marine Science, 71: 336–344. Migratory connec...
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croxfordunivpr:10.1093/icesjms/fst153 2024-06-23T07:51:25+00:00 Migratory connectivity of two Baltic Sea salmon populations: retrospective analysis using stable isotopes of scales Torniainen, Jyrki Vuorinen, Pekka J. Jones, Roger I. Keinänen, Marja Palm, Stefan Vuori, Kristiina A. M. Kiljunen, Mikko 2013 http://dx.doi.org/10.1093/icesjms/fst153 http://academic.oup.com/icesjms/article-pdf/71/2/336/29148128/fst153.pdf en eng Oxford University Press (OUP) ICES Journal of Marine Science volume 71, issue 2, page 336-344 ISSN 1095-9289 1054-3139 journal-article 2013 croxfordunivpr https://doi.org/10.1093/icesjms/fst153 2024-06-04T06:11:16Z Abstract Torniainen, J., Vuorinen, P. J., Jones, R. I., Keinänen, M., Palm, S., Vuori, K. A. M., and Kiljunen, M. 2014. Migratory connectivity of two Baltic Sea salmon populations: retrospective analysis using stable isotopes of scales. – ICES Journal of Marine Science, 71: 336–344. Migratory connectivity refers to the extent to which individuals of a migratory population behave in unison, and has significant consequences for the ecology, evolution and conservation of migratory animals. We made a retrospective assessment of the migratory connectivity of River Simojoki and River Kymijoki populations of Atlantic salmon Salmo salar L. by using stable isotope analysis of archived scales to identify the final feeding areas used before ascending rivers for spawning. We also tested differences in migratory connectivity between wild and hatchery-reared salmon and compared Carlin-tag recoveries with salmon scale stable isotope analysis as methods for studying salmon migrations. Stable isotope (δ13C, δ15N) values from the last growth region of scales from salmon caught ascending their natal rivers were compared via discriminant analysis with those from scales of salmon caught in different Baltic Sea areas during 1989–2011. Most River Simojoki salmon had likely fed in the Baltic Proper (mean ± SD for ascending fish probability 0.59 ± 0.32) with secondary likely feeding areas in the Bothnian Sea (0.21 ± 0.26) and the Gulf of Finland (0.20 ± 0.27). Most River Kymijoki salmon had likely fed in the Gulf of Finland (0.71 ± 0.42) with the Baltic Proper (0.29 ± 0.41) a secondary feeding area. The results did not indicate the Bothnian Sea to be an important feeding area. The two salmon populations showed weak migratory connectivity and rather fixed areal preference throughout the record irrespective of wild or stocked origin. Although the results from the scale stable isotope analyses were broadly consistent with previously reported Carlin-tag recoveries, we argue that the stable isotope approach offers several important ... Article in Journal/Newspaper Atlantic salmon Salmo salar Oxford University Press Simojoki ENVELOPE(25.050,25.050,65.617,65.617) ICES Journal of Marine Science 71 2 336 344 |
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Open Polar |
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Oxford University Press |
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croxfordunivpr |
language |
English |
description |
Abstract Torniainen, J., Vuorinen, P. J., Jones, R. I., Keinänen, M., Palm, S., Vuori, K. A. M., and Kiljunen, M. 2014. Migratory connectivity of two Baltic Sea salmon populations: retrospective analysis using stable isotopes of scales. – ICES Journal of Marine Science, 71: 336–344. Migratory connectivity refers to the extent to which individuals of a migratory population behave in unison, and has significant consequences for the ecology, evolution and conservation of migratory animals. We made a retrospective assessment of the migratory connectivity of River Simojoki and River Kymijoki populations of Atlantic salmon Salmo salar L. by using stable isotope analysis of archived scales to identify the final feeding areas used before ascending rivers for spawning. We also tested differences in migratory connectivity between wild and hatchery-reared salmon and compared Carlin-tag recoveries with salmon scale stable isotope analysis as methods for studying salmon migrations. Stable isotope (δ13C, δ15N) values from the last growth region of scales from salmon caught ascending their natal rivers were compared via discriminant analysis with those from scales of salmon caught in different Baltic Sea areas during 1989–2011. Most River Simojoki salmon had likely fed in the Baltic Proper (mean ± SD for ascending fish probability 0.59 ± 0.32) with secondary likely feeding areas in the Bothnian Sea (0.21 ± 0.26) and the Gulf of Finland (0.20 ± 0.27). Most River Kymijoki salmon had likely fed in the Gulf of Finland (0.71 ± 0.42) with the Baltic Proper (0.29 ± 0.41) a secondary feeding area. The results did not indicate the Bothnian Sea to be an important feeding area. The two salmon populations showed weak migratory connectivity and rather fixed areal preference throughout the record irrespective of wild or stocked origin. Although the results from the scale stable isotope analyses were broadly consistent with previously reported Carlin-tag recoveries, we argue that the stable isotope approach offers several important ... |
format |
Article in Journal/Newspaper |
author |
Torniainen, Jyrki Vuorinen, Pekka J. Jones, Roger I. Keinänen, Marja Palm, Stefan Vuori, Kristiina A. M. Kiljunen, Mikko |
spellingShingle |
Torniainen, Jyrki Vuorinen, Pekka J. Jones, Roger I. Keinänen, Marja Palm, Stefan Vuori, Kristiina A. M. Kiljunen, Mikko Migratory connectivity of two Baltic Sea salmon populations: retrospective analysis using stable isotopes of scales |
author_facet |
Torniainen, Jyrki Vuorinen, Pekka J. Jones, Roger I. Keinänen, Marja Palm, Stefan Vuori, Kristiina A. M. Kiljunen, Mikko |
author_sort |
Torniainen, Jyrki |
title |
Migratory connectivity of two Baltic Sea salmon populations: retrospective analysis using stable isotopes of scales |
title_short |
Migratory connectivity of two Baltic Sea salmon populations: retrospective analysis using stable isotopes of scales |
title_full |
Migratory connectivity of two Baltic Sea salmon populations: retrospective analysis using stable isotopes of scales |
title_fullStr |
Migratory connectivity of two Baltic Sea salmon populations: retrospective analysis using stable isotopes of scales |
title_full_unstemmed |
Migratory connectivity of two Baltic Sea salmon populations: retrospective analysis using stable isotopes of scales |
title_sort |
migratory connectivity of two baltic sea salmon populations: retrospective analysis using stable isotopes of scales |
publisher |
Oxford University Press (OUP) |
publishDate |
2013 |
url |
http://dx.doi.org/10.1093/icesjms/fst153 http://academic.oup.com/icesjms/article-pdf/71/2/336/29148128/fst153.pdf |
long_lat |
ENVELOPE(25.050,25.050,65.617,65.617) |
geographic |
Simojoki |
geographic_facet |
Simojoki |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
ICES Journal of Marine Science volume 71, issue 2, page 336-344 ISSN 1095-9289 1054-3139 |
op_doi |
https://doi.org/10.1093/icesjms/fst153 |
container_title |
ICES Journal of Marine Science |
container_volume |
71 |
container_issue |
2 |
container_start_page |
336 |
op_container_end_page |
344 |
_version_ |
1802642524610756608 |