Genetic introgression of farmed salmon in native populations: quantifying the relative influence of population size and frequency of escapees
- Farmed escapees may threaten the genetic integrity of native salmon populations through interbreeding. However, introgression requires survival until maturation, successful reproduction and successful early development. These traits are often compromised in domesticated animals selected for high p...
Published in: | Aquaculture Environment Interactions |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Inter-Research
2015
|
Subjects: | |
Online Access: | http://hdl.handle.net/11250/283319 https://doi.org/10.3354/aei00126 |
id |
ftimr:oai:imr.brage.unit.no:11250/283319 |
---|---|
record_format |
openpolar |
spelling |
ftimr:oai:imr.brage.unit.no:11250/283319 2023-05-15T15:32:19+02:00 Genetic introgression of farmed salmon in native populations: quantifying the relative influence of population size and frequency of escapees Heino, Mikko Svåsand, Terje Wennevik, Vidar Glover, Kevin 2015-05-07T11:23:12Z application/pdf http://hdl.handle.net/11250/283319 https://doi.org/10.3354/aei00126 eng eng Inter-Research Heino M, Svåsand T, Wennevik V, Glover KA (2015) Genetic introgression of farmed salmon in native populations: quantifying the relative influence of population size and frequency of escapees. Aquacult Environ Interact 6:185-190 urn:issn:1869-7534 http://hdl.handle.net/11250/283319 https://doi.org/10.3354/aei00126 cristin:1220472 Navngivelse 3.0 Norge http://creativecommons.org/licenses/by/3.0/no/ CC-BY 185-190 6 Aquaculture environment interactions 2 VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Aquaculture: 922 Journal article Peer reviewed 2015 ftimr https://doi.org/10.3354/aei00126 2021-09-23T20:14:42Z - Farmed escapees may threaten the genetic integrity of native salmon populations through interbreeding. However, introgression requires survival until maturation, successful reproduction and successful early development. These traits are often compromised in domesticated animals selected for high performance in captivity. This makes it difficult to predict introgression levels in native populations. A recent study estimated genetic introgression of farmed escaped Atlantic salmon Salmo salar in 20 Norwegian rivers and found highly population-specific levels of introgression. The underlying causes of these patterns, however, remain unknown. Here, using a modeling approach on empirical and demographic data, we demonstrated that a combination of the observed relative frequency of escaped farmed salmon and the average annual angling catch weights for rivers, provides a significantly better predictor for cumulative introgression of farmed salmon in wild populations than the frequency of farmed salmon alone. Our results suggest that the demography of the native population is a significant factor influencing the relative success of farmed salmon in the wild. Article in Journal/Newspaper Atlantic salmon Salmo salar Institute for Marine Research: Brage IMR Aquaculture Environment Interactions 6 2 185 190 |
institution |
Open Polar |
collection |
Institute for Marine Research: Brage IMR |
op_collection_id |
ftimr |
language |
English |
topic |
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Aquaculture: 922 |
spellingShingle |
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Aquaculture: 922 Heino, Mikko Svåsand, Terje Wennevik, Vidar Glover, Kevin Genetic introgression of farmed salmon in native populations: quantifying the relative influence of population size and frequency of escapees |
topic_facet |
VDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Aquaculture: 922 |
description |
- Farmed escapees may threaten the genetic integrity of native salmon populations through interbreeding. However, introgression requires survival until maturation, successful reproduction and successful early development. These traits are often compromised in domesticated animals selected for high performance in captivity. This makes it difficult to predict introgression levels in native populations. A recent study estimated genetic introgression of farmed escaped Atlantic salmon Salmo salar in 20 Norwegian rivers and found highly population-specific levels of introgression. The underlying causes of these patterns, however, remain unknown. Here, using a modeling approach on empirical and demographic data, we demonstrated that a combination of the observed relative frequency of escaped farmed salmon and the average annual angling catch weights for rivers, provides a significantly better predictor for cumulative introgression of farmed salmon in wild populations than the frequency of farmed salmon alone. Our results suggest that the demography of the native population is a significant factor influencing the relative success of farmed salmon in the wild. |
format |
Article in Journal/Newspaper |
author |
Heino, Mikko Svåsand, Terje Wennevik, Vidar Glover, Kevin |
author_facet |
Heino, Mikko Svåsand, Terje Wennevik, Vidar Glover, Kevin |
author_sort |
Heino, Mikko |
title |
Genetic introgression of farmed salmon in native populations: quantifying the relative influence of population size and frequency of escapees |
title_short |
Genetic introgression of farmed salmon in native populations: quantifying the relative influence of population size and frequency of escapees |
title_full |
Genetic introgression of farmed salmon in native populations: quantifying the relative influence of population size and frequency of escapees |
title_fullStr |
Genetic introgression of farmed salmon in native populations: quantifying the relative influence of population size and frequency of escapees |
title_full_unstemmed |
Genetic introgression of farmed salmon in native populations: quantifying the relative influence of population size and frequency of escapees |
title_sort |
genetic introgression of farmed salmon in native populations: quantifying the relative influence of population size and frequency of escapees |
publisher |
Inter-Research |
publishDate |
2015 |
url |
http://hdl.handle.net/11250/283319 https://doi.org/10.3354/aei00126 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
185-190 6 Aquaculture environment interactions 2 |
op_relation |
Heino M, Svåsand T, Wennevik V, Glover KA (2015) Genetic introgression of farmed salmon in native populations: quantifying the relative influence of population size and frequency of escapees. Aquacult Environ Interact 6:185-190 urn:issn:1869-7534 http://hdl.handle.net/11250/283319 https://doi.org/10.3354/aei00126 cristin:1220472 |
op_rights |
Navngivelse 3.0 Norge http://creativecommons.org/licenses/by/3.0/no/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3354/aei00126 |
container_title |
Aquaculture Environment Interactions |
container_volume |
6 |
container_issue |
2 |
container_start_page |
185 |
op_container_end_page |
190 |
_version_ |
1766362825861627904 |