Lacustrine spatial distribution of landlocked Atlantic salmon populations assessed across generations by multilocus individual assignment and mixed‐stock analyses
Abstract The objective of this study was to assess the spatiotemporal distribution of four landlocked Atlantic salmon ( Salmo salar ) populations during their sympatric feeding phase in lake St‐Jean (Québec, Canada). A total of 1100 fish captured over a period of 25 years was genotyped at six micros...
Published in: | Molecular Ecology |
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Language: | English |
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Online Access: | http://dx.doi.org/10.1046/j.0962-1083.2001.01374.x http://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.0962-1083.2001.01374.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.0962-1083.2001.01374.x |
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crwiley:10.1046/j.0962-1083.2001.01374.x 2024-06-02T08:03:35+00:00 Lacustrine spatial distribution of landlocked Atlantic salmon populations assessed across generations by multilocus individual assignment and mixed‐stock analyses Potvin, C. Bernatchez, L. 2001 http://dx.doi.org/10.1046/j.0962-1083.2001.01374.x http://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.0962-1083.2001.01374.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.0962-1083.2001.01374.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Molecular Ecology volume 10, issue 10, page 2375-2388 ISSN 0962-1083 1365-294X journal-article 2001 crwiley https://doi.org/10.1046/j.0962-1083.2001.01374.x 2024-05-03T10:57:08Z Abstract The objective of this study was to assess the spatiotemporal distribution of four landlocked Atlantic salmon ( Salmo salar ) populations during their sympatric feeding phase in lake St‐Jean (Québec, Canada). A total of 1100 fish captured over a period of 25 years was genotyped at six microsatellite loci in order to assess the temporal stability of the relative proportion of each population in different lake sectors using both individual‐based assignment and mixed‐stock analysis. Estimates of relative proportions obtained from both methods were highly correlated. A nonrandom spatial distribution of populations was observed for each period and, despite the fact that the overall proportion of each population varied over time, the pattern of differential distribution remained generally stable over time. Furthermore, there were indications that the extent of horizontal spatial overlap among populations was negatively correlated with that of their genetic differentiation at both microsatellites and a major histocompatibility complex locus, and independent of the geographical distance between the rivers of origin. We discuss the hypothesis that the temporal stability of spatial distribution, the lack of an association between spatial partitioning and geographical distance between rivers of origin, and the apparent negative correlation between spatial overlap and genetic differentiation, reflect the outcome of selective pressures driving behavioural differences for spatial niche partitioning among populations. Article in Journal/Newspaper Atlantic salmon Salmo salar Wiley Online Library Canada Molecular Ecology 10 10 2375 2388 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract The objective of this study was to assess the spatiotemporal distribution of four landlocked Atlantic salmon ( Salmo salar ) populations during their sympatric feeding phase in lake St‐Jean (Québec, Canada). A total of 1100 fish captured over a period of 25 years was genotyped at six microsatellite loci in order to assess the temporal stability of the relative proportion of each population in different lake sectors using both individual‐based assignment and mixed‐stock analysis. Estimates of relative proportions obtained from both methods were highly correlated. A nonrandom spatial distribution of populations was observed for each period and, despite the fact that the overall proportion of each population varied over time, the pattern of differential distribution remained generally stable over time. Furthermore, there were indications that the extent of horizontal spatial overlap among populations was negatively correlated with that of their genetic differentiation at both microsatellites and a major histocompatibility complex locus, and independent of the geographical distance between the rivers of origin. We discuss the hypothesis that the temporal stability of spatial distribution, the lack of an association between spatial partitioning and geographical distance between rivers of origin, and the apparent negative correlation between spatial overlap and genetic differentiation, reflect the outcome of selective pressures driving behavioural differences for spatial niche partitioning among populations. |
format |
Article in Journal/Newspaper |
author |
Potvin, C. Bernatchez, L. |
spellingShingle |
Potvin, C. Bernatchez, L. Lacustrine spatial distribution of landlocked Atlantic salmon populations assessed across generations by multilocus individual assignment and mixed‐stock analyses |
author_facet |
Potvin, C. Bernatchez, L. |
author_sort |
Potvin, C. |
title |
Lacustrine spatial distribution of landlocked Atlantic salmon populations assessed across generations by multilocus individual assignment and mixed‐stock analyses |
title_short |
Lacustrine spatial distribution of landlocked Atlantic salmon populations assessed across generations by multilocus individual assignment and mixed‐stock analyses |
title_full |
Lacustrine spatial distribution of landlocked Atlantic salmon populations assessed across generations by multilocus individual assignment and mixed‐stock analyses |
title_fullStr |
Lacustrine spatial distribution of landlocked Atlantic salmon populations assessed across generations by multilocus individual assignment and mixed‐stock analyses |
title_full_unstemmed |
Lacustrine spatial distribution of landlocked Atlantic salmon populations assessed across generations by multilocus individual assignment and mixed‐stock analyses |
title_sort |
lacustrine spatial distribution of landlocked atlantic salmon populations assessed across generations by multilocus individual assignment and mixed‐stock analyses |
publisher |
Wiley |
publishDate |
2001 |
url |
http://dx.doi.org/10.1046/j.0962-1083.2001.01374.x http://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.0962-1083.2001.01374.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.0962-1083.2001.01374.x |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Molecular Ecology volume 10, issue 10, page 2375-2388 ISSN 0962-1083 1365-294X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1046/j.0962-1083.2001.01374.x |
container_title |
Molecular Ecology |
container_volume |
10 |
container_issue |
10 |
container_start_page |
2375 |
op_container_end_page |
2388 |
_version_ |
1800748147651117056 |