Prevalence and recurrence of escaped farmed Atlantic salmon (Salmo salar) in eastern North American rivers
Knowledge of the prevalence of escaped farmed fishes in the wild is an essential first step to assessing the risk resulting from interactions between farmed and wild fishes. This is especially important in eastern North America, where Atlantic salmon ( Salmo salar ) aquaculture occurs near wild Atla...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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crcansciencepubl:10.1139/f08-181 2024-06-23T07:51:15+00:00 Prevalence and recurrence of escaped farmed Atlantic salmon (Salmo salar) in eastern North American rivers Morris, Matthew R.J. Fraser, Dylan J. Heggelin, Anthony J. Whoriskey, Frederick G. Carr, Jonathan W. O’Neil, Shane F. Hutchings, Jeffrey A. 2008 http://dx.doi.org/10.1139/f08-181 http://www.nrcresearchpress.com/doi/full-xml/10.1139/F08-181 http://www.nrcresearchpress.com/doi/pdf/10.1139/F08-181 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 65, issue 12, page 2807-2826 ISSN 0706-652X 1205-7533 journal-article 2008 crcansciencepubl https://doi.org/10.1139/f08-181 2024-06-06T04:11:15Z Knowledge of the prevalence of escaped farmed fishes in the wild is an essential first step to assessing the risk resulting from interactions between farmed and wild fishes. This is especially important in eastern North America, where Atlantic salmon ( Salmo salar ) aquaculture occurs near wild Atlantic salmon rivers and where many wild salmon populations are severely depressed. Here, we review the literature on the incidence of escaped farmed salmon in eastern North American rivers, for which there has been no comprehensive compilation to date. Escaped farmed salmon have been found in 54 of 62 (87%) rivers investigated within a 300 km radius of the aquaculture industry since 1984, including 11 rivers that contain endangered salmon populations. Averaged among all investigations, the proportional representation of farmed salmon among adults entering the rivers from the sea was 9.2% (range 0% to 100%). Where data were sufficient to examine temporal trends, farmed salmon proportions varied considerably over time, suggesting that escape events are episodic in nature. We conclude that escaped farmed salmon are sufficiently prevalent in eastern North American rivers to pose a potentially serious risk to the persistence of wild salmon populations, especially in those rivers that are adjacent to existing aquaculture sites. Article in Journal/Newspaper Atlantic salmon Salmo salar Canadian Science Publishing Canadian Journal of Fisheries and Aquatic Sciences 65 12 2807 2826 |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
Knowledge of the prevalence of escaped farmed fishes in the wild is an essential first step to assessing the risk resulting from interactions between farmed and wild fishes. This is especially important in eastern North America, where Atlantic salmon ( Salmo salar ) aquaculture occurs near wild Atlantic salmon rivers and where many wild salmon populations are severely depressed. Here, we review the literature on the incidence of escaped farmed salmon in eastern North American rivers, for which there has been no comprehensive compilation to date. Escaped farmed salmon have been found in 54 of 62 (87%) rivers investigated within a 300 km radius of the aquaculture industry since 1984, including 11 rivers that contain endangered salmon populations. Averaged among all investigations, the proportional representation of farmed salmon among adults entering the rivers from the sea was 9.2% (range 0% to 100%). Where data were sufficient to examine temporal trends, farmed salmon proportions varied considerably over time, suggesting that escape events are episodic in nature. We conclude that escaped farmed salmon are sufficiently prevalent in eastern North American rivers to pose a potentially serious risk to the persistence of wild salmon populations, especially in those rivers that are adjacent to existing aquaculture sites. |
format |
Article in Journal/Newspaper |
author |
Morris, Matthew R.J. Fraser, Dylan J. Heggelin, Anthony J. Whoriskey, Frederick G. Carr, Jonathan W. O’Neil, Shane F. Hutchings, Jeffrey A. |
spellingShingle |
Morris, Matthew R.J. Fraser, Dylan J. Heggelin, Anthony J. Whoriskey, Frederick G. Carr, Jonathan W. O’Neil, Shane F. Hutchings, Jeffrey A. Prevalence and recurrence of escaped farmed Atlantic salmon (Salmo salar) in eastern North American rivers |
author_facet |
Morris, Matthew R.J. Fraser, Dylan J. Heggelin, Anthony J. Whoriskey, Frederick G. Carr, Jonathan W. O’Neil, Shane F. Hutchings, Jeffrey A. |
author_sort |
Morris, Matthew R.J. |
title |
Prevalence and recurrence of escaped farmed Atlantic salmon (Salmo salar) in eastern North American rivers |
title_short |
Prevalence and recurrence of escaped farmed Atlantic salmon (Salmo salar) in eastern North American rivers |
title_full |
Prevalence and recurrence of escaped farmed Atlantic salmon (Salmo salar) in eastern North American rivers |
title_fullStr |
Prevalence and recurrence of escaped farmed Atlantic salmon (Salmo salar) in eastern North American rivers |
title_full_unstemmed |
Prevalence and recurrence of escaped farmed Atlantic salmon (Salmo salar) in eastern North American rivers |
title_sort |
prevalence and recurrence of escaped farmed atlantic salmon (salmo salar) in eastern north american rivers |
publisher |
Canadian Science Publishing |
publishDate |
2008 |
url |
http://dx.doi.org/10.1139/f08-181 http://www.nrcresearchpress.com/doi/full-xml/10.1139/F08-181 http://www.nrcresearchpress.com/doi/pdf/10.1139/F08-181 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 65, issue 12, page 2807-2826 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f08-181 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
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65 |
container_issue |
12 |
container_start_page |
2807 |
op_container_end_page |
2826 |
_version_ |
1802642272029769728 |