Losing the ‘arms race’: multiresistant salmon lice are dispersed throughout the North Atlantic Ocean
Nothing lasts forever, including the effect of chemicals aimed to control pests in food production. As old pesticides have been compromised by emerging resistance, new ones have been introduced and turned the odds back in our favour. With time, however, some pests have developed multi-pesticide resi...
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crroyalsociety:10.1098/rsos.210265 2024-06-02T08:03:41+00:00 Losing the ‘arms race’: multiresistant salmon lice are dispersed throughout the North Atlantic Ocean Fjørtoft, Helene Børretzen Nilsen, Frank Besnier, Francois Stene, Anne Tveten, Ann-Kristin Bjørn, Pål Arne Aspehaug, Vidar Teis Glover, Kevin Alan Regional Research Fond Norwegian Food Safety Authority Norwegian Ministry of Trade and Industry 2021 http://dx.doi.org/10.1098/rsos.210265 https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.210265 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsos.210265 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Royal Society Open Science volume 8, issue 5, page 210265 ISSN 2054-5703 journal-article 2021 crroyalsociety https://doi.org/10.1098/rsos.210265 2024-05-07T14:16:57Z Nothing lasts forever, including the effect of chemicals aimed to control pests in food production. As old pesticides have been compromised by emerging resistance, new ones have been introduced and turned the odds back in our favour. With time, however, some pests have developed multi-pesticide resistance, challenging our ability to control them. In salmonid aquaculture, the ectoparasitic salmon louse has developed resistance to most of the available delousing compounds. The discovery of genetic markers associated with resistance to organophosphates and pyrethroids made it possible for us to investigate simultaneous resistance to both compounds in approximately 2000 samples of salmon lice from throughout the North Atlantic in the years 2000–2016. We observed widespread and increasing multiresistance on the European side of the Atlantic, particularly in areas with intensive aquaculture. Multiresistant lice were also found on wild Atlantic salmon and sea trout, and also on farmed salmonid hosts in areas where delousing chemicals have not been used. In areas with intensive aquaculture, there are almost no lice left that are sensitive to both compounds. These results demonstrate the speed to which this parasite can develop widespread multiresistance, illustrating why the aquaculture industry has repeatedly lost the arms race with this highly problematic parasite. Article in Journal/Newspaper Atlantic salmon North Atlantic The Royal Society Royal Society Open Science 8 5 210265 |
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Open Polar |
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The Royal Society |
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crroyalsociety |
language |
English |
description |
Nothing lasts forever, including the effect of chemicals aimed to control pests in food production. As old pesticides have been compromised by emerging resistance, new ones have been introduced and turned the odds back in our favour. With time, however, some pests have developed multi-pesticide resistance, challenging our ability to control them. In salmonid aquaculture, the ectoparasitic salmon louse has developed resistance to most of the available delousing compounds. The discovery of genetic markers associated with resistance to organophosphates and pyrethroids made it possible for us to investigate simultaneous resistance to both compounds in approximately 2000 samples of salmon lice from throughout the North Atlantic in the years 2000–2016. We observed widespread and increasing multiresistance on the European side of the Atlantic, particularly in areas with intensive aquaculture. Multiresistant lice were also found on wild Atlantic salmon and sea trout, and also on farmed salmonid hosts in areas where delousing chemicals have not been used. In areas with intensive aquaculture, there are almost no lice left that are sensitive to both compounds. These results demonstrate the speed to which this parasite can develop widespread multiresistance, illustrating why the aquaculture industry has repeatedly lost the arms race with this highly problematic parasite. |
author2 |
Regional Research Fond Norwegian Food Safety Authority Norwegian Ministry of Trade and Industry |
format |
Article in Journal/Newspaper |
author |
Fjørtoft, Helene Børretzen Nilsen, Frank Besnier, Francois Stene, Anne Tveten, Ann-Kristin Bjørn, Pål Arne Aspehaug, Vidar Teis Glover, Kevin Alan |
spellingShingle |
Fjørtoft, Helene Børretzen Nilsen, Frank Besnier, Francois Stene, Anne Tveten, Ann-Kristin Bjørn, Pål Arne Aspehaug, Vidar Teis Glover, Kevin Alan Losing the ‘arms race’: multiresistant salmon lice are dispersed throughout the North Atlantic Ocean |
author_facet |
Fjørtoft, Helene Børretzen Nilsen, Frank Besnier, Francois Stene, Anne Tveten, Ann-Kristin Bjørn, Pål Arne Aspehaug, Vidar Teis Glover, Kevin Alan |
author_sort |
Fjørtoft, Helene Børretzen |
title |
Losing the ‘arms race’: multiresistant salmon lice are dispersed throughout the North Atlantic Ocean |
title_short |
Losing the ‘arms race’: multiresistant salmon lice are dispersed throughout the North Atlantic Ocean |
title_full |
Losing the ‘arms race’: multiresistant salmon lice are dispersed throughout the North Atlantic Ocean |
title_fullStr |
Losing the ‘arms race’: multiresistant salmon lice are dispersed throughout the North Atlantic Ocean |
title_full_unstemmed |
Losing the ‘arms race’: multiresistant salmon lice are dispersed throughout the North Atlantic Ocean |
title_sort |
losing the ‘arms race’: multiresistant salmon lice are dispersed throughout the north atlantic ocean |
publisher |
The Royal Society |
publishDate |
2021 |
url |
http://dx.doi.org/10.1098/rsos.210265 https://royalsocietypublishing.org/doi/pdf/10.1098/rsos.210265 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsos.210265 |
genre |
Atlantic salmon North Atlantic |
genre_facet |
Atlantic salmon North Atlantic |
op_source |
Royal Society Open Science volume 8, issue 5, page 210265 ISSN 2054-5703 |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rsos.210265 |
container_title |
Royal Society Open Science |
container_volume |
8 |
container_issue |
5 |
container_start_page |
210265 |
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1800748275279593472 |