Population Genetics of Atlantic Salmon (Salmo salar) in Prince Edward Island, Canada
ABSTRACT Atlantic salmon (Salmo salar) have experienced population declines across their native range. Widespread stocking has been a population recovery strategy, but there is a growing awareness that stocking may put genetic integrity at risk. In Prince Edward Island, Canada, over 37 million salmo...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2025-05-01
|
| Series: | Ecology and Evolution |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/ece3.71285 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849726487187423232 |
|---|---|
| author | Carissa M. Grove Scott D. Roloson Kyle M. Knysh Scott A. Pavey David K. Cairns Robert F. Gilmour Jr. Michael R. van denHeuvel |
| author_facet | Carissa M. Grove Scott D. Roloson Kyle M. Knysh Scott A. Pavey David K. Cairns Robert F. Gilmour Jr. Michael R. van denHeuvel |
| author_sort | Carissa M. Grove |
| collection | DOAJ |
| description | ABSTRACT Atlantic salmon (Salmo salar) have experienced population declines across their native range. Widespread stocking has been a population recovery strategy, but there is a growing awareness that stocking may put genetic integrity at risk. In Prince Edward Island, Canada, over 37 million salmon have been stocked since 1880. This study used a panel of six microsatellites and next‐generation sequencing to evaluate the genetic composition of 884 individuals from 20 rivers. Bayesian clustering methods inferred groupings that were generally consistent with the spatial distribution of rivers. A cluster in northeastern PEI was the most distinct, clustering separately across all methods. Distance between rivers accounted for 25.8% of the variations, whereas stocking intensity did not predict genetic variation. The genetic composition of the most heavily stocked river changed over a few years, suggesting that wild free‐ranging fish could outcompete stocked fish. Currently, PEI has multiple genetic stocks that are consistent with the post‐glacial biogeography rather than stocking history. Clarification of these adaptations is required to guide the incorporation of genetics into management strategies for the benefit of Atlantic salmon conservation. |
| format | Article |
| id | doaj-art-bd62ed8a273342719c8ea2b586faf0fc |
| institution | DOAJ |
| issn | 2045-7758 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Wiley |
| record_format | Article |
| series | Ecology and Evolution |
| spelling | doaj-art-bd62ed8a273342719c8ea2b586faf0fc2025-08-20T03:10:09ZengWileyEcology and Evolution2045-77582025-05-01155n/an/a10.1002/ece3.71285Population Genetics of Atlantic Salmon (Salmo salar) in Prince Edward Island, CanadaCarissa M. Grove0Scott D. Roloson1Kyle M. Knysh2Scott A. Pavey3David K. Cairns4Robert F. Gilmour Jr.5Michael R. van denHeuvel6Canadian Rivers Institute University of Prince Edward Island Charlottetown Prince Edward Island CanadaFisheries and Oceans Canada Charlottetown Prince Edward Island CanadaCanadian Rivers Institute University of Prince Edward Island Charlottetown Prince Edward Island CanadaCanadian Rivers Institute University of New Brunswick Saint John New Brunswick CanadaFisheries and Oceans Canada Charlottetown Prince Edward Island CanadaDepartment of Sustainable Design Engineering University of Prince Edward Island Charlottetown Prince Edward Island CanadaCanadian Rivers Institute University of Prince Edward Island Charlottetown Prince Edward Island CanadaABSTRACT Atlantic salmon (Salmo salar) have experienced population declines across their native range. Widespread stocking has been a population recovery strategy, but there is a growing awareness that stocking may put genetic integrity at risk. In Prince Edward Island, Canada, over 37 million salmon have been stocked since 1880. This study used a panel of six microsatellites and next‐generation sequencing to evaluate the genetic composition of 884 individuals from 20 rivers. Bayesian clustering methods inferred groupings that were generally consistent with the spatial distribution of rivers. A cluster in northeastern PEI was the most distinct, clustering separately across all methods. Distance between rivers accounted for 25.8% of the variations, whereas stocking intensity did not predict genetic variation. The genetic composition of the most heavily stocked river changed over a few years, suggesting that wild free‐ranging fish could outcompete stocked fish. Currently, PEI has multiple genetic stocks that are consistent with the post‐glacial biogeography rather than stocking history. Clarification of these adaptations is required to guide the incorporation of genetics into management strategies for the benefit of Atlantic salmon conservation.https://doi.org/10.1002/ece3.71285Atlantic salmondiversitygeneticspopulationstocking |
| spellingShingle | Carissa M. Grove Scott D. Roloson Kyle M. Knysh Scott A. Pavey David K. Cairns Robert F. Gilmour Jr. Michael R. van denHeuvel Population Genetics of Atlantic Salmon (Salmo salar) in Prince Edward Island, Canada Ecology and Evolution Atlantic salmon diversity genetics population stocking |
| title | Population Genetics of Atlantic Salmon (Salmo salar) in Prince Edward Island, Canada |
| title_full | Population Genetics of Atlantic Salmon (Salmo salar) in Prince Edward Island, Canada |
| title_fullStr | Population Genetics of Atlantic Salmon (Salmo salar) in Prince Edward Island, Canada |
| title_full_unstemmed | Population Genetics of Atlantic Salmon (Salmo salar) in Prince Edward Island, Canada |
| title_short | Population Genetics of Atlantic Salmon (Salmo salar) in Prince Edward Island, Canada |
| title_sort | population genetics of atlantic salmon salmo salar in prince edward island canada |
| topic | Atlantic salmon diversity genetics population stocking |
| url | https://doi.org/10.1002/ece3.71285 |
| work_keys_str_mv | AT carissamgrove populationgeneticsofatlanticsalmonsalmosalarinprinceedwardislandcanada AT scottdroloson populationgeneticsofatlanticsalmonsalmosalarinprinceedwardislandcanada AT kylemknysh populationgeneticsofatlanticsalmonsalmosalarinprinceedwardislandcanada AT scottapavey populationgeneticsofatlanticsalmonsalmosalarinprinceedwardislandcanada AT davidkcairns populationgeneticsofatlanticsalmonsalmosalarinprinceedwardislandcanada AT robertfgilmourjr populationgeneticsofatlanticsalmonsalmosalarinprinceedwardislandcanada AT michaelrvandenheuvel populationgeneticsofatlanticsalmonsalmosalarinprinceedwardislandcanada |