A large wild salmon stock shows genetic and life history differentiation within, but not between, rivers
Anadromous salmonid fishes frequently exhibit strong geographic population structuring. However, population genetic differentiation of Atlantic salmon (Salmo salar) at fine geographic scales differs across equivalent spatial extents in different regions. So far, fine-scale genetic differentiation ha...
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ftunivhelsihelda:oai:helda.helsinki.fi:10138/332296 2024-01-07T09:42:13+01:00 A large wild salmon stock shows genetic and life history differentiation within, but not between, rivers Miettinen, Antti Palm, Stefan Dannewitz, Johan Lind, Emma Primmer, Craig R. Romakkaniemi, Atso Ostergren, Johan Pritchard, Victoria L. Evolution, Conservation, and Genomics Organismal and Evolutionary Biology Research Programme Biosciences Helsinki Institute of Sustainability Science (HELSUS) Institute of Biotechnology Faculty of Biological and Environmental Sciences 2021-07-08T12:35:01Z 17 application/pdf http://hdl.handle.net/10138/332296 eng eng Springer 10.1007/s10592-020-01317-y Open access funding provided by University of Helsinki including Helsinki University Central Hospital. The study was funded by fishing license revenues from the Tornio River, The Swedish Agency for Marine and Water Management, The Swedish Research Council Formas (Grant/Award 2013-1288 to JO), Societas pro Fauna et Flora Fennica, The Betty Vaananen Fund from The Kuopio Naturalists' Society (KLYY), The Raija and Ossi Tuuliainen Foundation (Raija ja Ossi Tuuliaisen Saatio), and The Baltic Sea Fund from The Finnish Foundation for Nature Conservation (Suomen Luonnonsuojelun Saatio) (grants to AM). Miettinen , A , Palm , S , Dannewitz , J , Lind , E , Primmer , C R , Romakkaniemi , A , Ostergren , J & Pritchard , V L 2021 , ' A large wild salmon stock shows genetic and life history differentiation within, but not between, rivers ' , Conservation Genetics , vol. 22 , pp. 35–51 . https://doi.org/10.1007/s10592-020-01317-y ORCID: /0000-0001-6002-2891/work/96738071 ORCID: /0000-0002-3687-8435/work/96738299 f0d4270e-c549-4010-8f53-3097445d1e0c http://hdl.handle.net/10138/332296 000589994900001 cc_by openAccess info:eu-repo/semantics/openAccess Atlantic salmon Baltic Sea Isolation by distance Mixed stock analysis Population genetics Run timing 1181 Ecology evolutionary biology Article publishedVersion 2021 ftunivhelsihelda 2023-12-14T00:13:09Z Anadromous salmonid fishes frequently exhibit strong geographic population structuring. However, population genetic differentiation of Atlantic salmon (Salmo salar) at fine geographic scales differs across equivalent spatial extents in different regions. So far, fine-scale genetic differentiation has not been assessed in rivers of the Baltic Sea, a region that contains an evolutionarily distinct Atlantic salmon lineage. Thus, Baltic salmon are currently managed on the river level, without focus on potential genetic structure and diversity within rivers. Here, we used microsatellites to characterize the genetic structure of wild juvenile salmon sampled throughout the interconnected, northern Baltic Tornio and Kalix Rivers. We found genetic differentiation within the two rivers, but not between them: salmon in the upper reaches differed from individuals in the lower reaches, regardless of river system. Further, examining smolts migrating from the river to the sea and adults returning from the sea to spawn, we found an association between the genetic structure and seasonal migration timing. Out-migrating smolts genetically assigned to upper river reaches were older and tended to reach the sea later in the season than smolts from the lower reaches. In contrast, mature adults originating from the upper reaches returned to the river early in the season. Our observation of genetic population structuring between downstream and upstream reaches of the large Tornio and Kalix rivers, and its association with migration timing, implies that careful temporal management of the northern Baltic fisheries would help to preserve the diversity and sustainability of the wild salmon stocks of these rivers. Peer reviewed Article in Journal/Newspaper Atlantic salmon Salmo salar HELDA – University of Helsinki Open Repository Kalix ENVELOPE(23.156,23.156,65.853,65.853) Tornio ENVELOPE(24.147,24.147,65.848,65.848) Conservation Genetics 22 1 35 51 |
institution |
Open Polar |
collection |
HELDA – University of Helsinki Open Repository |
op_collection_id |
ftunivhelsihelda |
language |
English |
topic |
Atlantic salmon Baltic Sea Isolation by distance Mixed stock analysis Population genetics Run timing 1181 Ecology evolutionary biology |
spellingShingle |
Atlantic salmon Baltic Sea Isolation by distance Mixed stock analysis Population genetics Run timing 1181 Ecology evolutionary biology Miettinen, Antti Palm, Stefan Dannewitz, Johan Lind, Emma Primmer, Craig R. Romakkaniemi, Atso Ostergren, Johan Pritchard, Victoria L. A large wild salmon stock shows genetic and life history differentiation within, but not between, rivers |
topic_facet |
Atlantic salmon Baltic Sea Isolation by distance Mixed stock analysis Population genetics Run timing 1181 Ecology evolutionary biology |
description |
Anadromous salmonid fishes frequently exhibit strong geographic population structuring. However, population genetic differentiation of Atlantic salmon (Salmo salar) at fine geographic scales differs across equivalent spatial extents in different regions. So far, fine-scale genetic differentiation has not been assessed in rivers of the Baltic Sea, a region that contains an evolutionarily distinct Atlantic salmon lineage. Thus, Baltic salmon are currently managed on the river level, without focus on potential genetic structure and diversity within rivers. Here, we used microsatellites to characterize the genetic structure of wild juvenile salmon sampled throughout the interconnected, northern Baltic Tornio and Kalix Rivers. We found genetic differentiation within the two rivers, but not between them: salmon in the upper reaches differed from individuals in the lower reaches, regardless of river system. Further, examining smolts migrating from the river to the sea and adults returning from the sea to spawn, we found an association between the genetic structure and seasonal migration timing. Out-migrating smolts genetically assigned to upper river reaches were older and tended to reach the sea later in the season than smolts from the lower reaches. In contrast, mature adults originating from the upper reaches returned to the river early in the season. Our observation of genetic population structuring between downstream and upstream reaches of the large Tornio and Kalix rivers, and its association with migration timing, implies that careful temporal management of the northern Baltic fisheries would help to preserve the diversity and sustainability of the wild salmon stocks of these rivers. Peer reviewed |
author2 |
Evolution, Conservation, and Genomics Organismal and Evolutionary Biology Research Programme Biosciences Helsinki Institute of Sustainability Science (HELSUS) Institute of Biotechnology Faculty of Biological and Environmental Sciences |
format |
Article in Journal/Newspaper |
author |
Miettinen, Antti Palm, Stefan Dannewitz, Johan Lind, Emma Primmer, Craig R. Romakkaniemi, Atso Ostergren, Johan Pritchard, Victoria L. |
author_facet |
Miettinen, Antti Palm, Stefan Dannewitz, Johan Lind, Emma Primmer, Craig R. Romakkaniemi, Atso Ostergren, Johan Pritchard, Victoria L. |
author_sort |
Miettinen, Antti |
title |
A large wild salmon stock shows genetic and life history differentiation within, but not between, rivers |
title_short |
A large wild salmon stock shows genetic and life history differentiation within, but not between, rivers |
title_full |
A large wild salmon stock shows genetic and life history differentiation within, but not between, rivers |
title_fullStr |
A large wild salmon stock shows genetic and life history differentiation within, but not between, rivers |
title_full_unstemmed |
A large wild salmon stock shows genetic and life history differentiation within, but not between, rivers |
title_sort |
large wild salmon stock shows genetic and life history differentiation within, but not between, rivers |
publisher |
Springer |
publishDate |
2021 |
url |
http://hdl.handle.net/10138/332296 |
long_lat |
ENVELOPE(23.156,23.156,65.853,65.853) ENVELOPE(24.147,24.147,65.848,65.848) |
geographic |
Kalix Tornio |
geographic_facet |
Kalix Tornio |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
10.1007/s10592-020-01317-y Open access funding provided by University of Helsinki including Helsinki University Central Hospital. The study was funded by fishing license revenues from the Tornio River, The Swedish Agency for Marine and Water Management, The Swedish Research Council Formas (Grant/Award 2013-1288 to JO), Societas pro Fauna et Flora Fennica, The Betty Vaananen Fund from The Kuopio Naturalists' Society (KLYY), The Raija and Ossi Tuuliainen Foundation (Raija ja Ossi Tuuliaisen Saatio), and The Baltic Sea Fund from The Finnish Foundation for Nature Conservation (Suomen Luonnonsuojelun Saatio) (grants to AM). Miettinen , A , Palm , S , Dannewitz , J , Lind , E , Primmer , C R , Romakkaniemi , A , Ostergren , J & Pritchard , V L 2021 , ' A large wild salmon stock shows genetic and life history differentiation within, but not between, rivers ' , Conservation Genetics , vol. 22 , pp. 35–51 . https://doi.org/10.1007/s10592-020-01317-y ORCID: /0000-0001-6002-2891/work/96738071 ORCID: /0000-0002-3687-8435/work/96738299 f0d4270e-c549-4010-8f53-3097445d1e0c http://hdl.handle.net/10138/332296 000589994900001 |
op_rights |
cc_by openAccess info:eu-repo/semantics/openAccess |
container_title |
Conservation Genetics |
container_volume |
22 |
container_issue |
1 |
container_start_page |
35 |
op_container_end_page |
51 |
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1787423145570861056 |