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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ftdoajarticles:oai:doaj.org/article:be64033420e0438f87311ddeead52f09 2023-05-15T15:32:29+02:00 Losing the ‘arms race’: multiresistant salmon lice are dispersed throughout the North Atlantic Ocean Helene Børretzen Fjørtoft Frank Nilsen Francois Besnier Anne Stene Ann-Kristin Tveten Pål Arne Bjørn Vidar Teis Aspehaug Kevin Alan Glover 2021-05-01T00:00:00Z https://doi.org/10.1098/rsos.210265 https://doaj.org/article/be64033420e0438f87311ddeead52f09 EN eng The Royal Society https://royalsocietypublishing.org/doi/10.1098/rsos.210265 https://doaj.org/toc/2054-5703 doi:10.1098/rsos.210265 2054-5703 https://doaj.org/article/be64033420e0438f87311ddeead52f09 Royal Society Open Science, Vol 8, Iss 5 (2021) Lepeophtheirus salmonis multiresistance salmonid aquaculture organophosphate pyrethroid Science Q article 2021 ftdoajarticles https://doi.org/10.1098/rsos.210265 2022-12-31T05:30:31Z 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 Directory of Open Access Journals: DOAJ Articles Royal Society Open Science 8 5 210265 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Lepeophtheirus salmonis multiresistance salmonid aquaculture organophosphate pyrethroid Science Q |
spellingShingle |
Lepeophtheirus salmonis multiresistance salmonid aquaculture organophosphate pyrethroid Science Q Helene Børretzen Fjørtoft Frank Nilsen Francois Besnier Anne Stene Ann-Kristin Tveten Pål Arne Bjørn Vidar Teis Aspehaug Kevin Alan Glover Losing the ‘arms race’: multiresistant salmon lice are dispersed throughout the North Atlantic Ocean |
topic_facet |
Lepeophtheirus salmonis multiresistance salmonid aquaculture organophosphate pyrethroid Science Q |
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. |
format |
Article in Journal/Newspaper |
author |
Helene Børretzen Fjørtoft Frank Nilsen Francois Besnier Anne Stene Ann-Kristin Tveten Pål Arne Bjørn Vidar Teis Aspehaug Kevin Alan Glover |
author_facet |
Helene Børretzen Fjørtoft Frank Nilsen Francois Besnier Anne Stene Ann-Kristin Tveten Pål Arne Bjørn Vidar Teis Aspehaug Kevin Alan Glover |
author_sort |
Helene Børretzen Fjørtoft |
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 |
https://doi.org/10.1098/rsos.210265 https://doaj.org/article/be64033420e0438f87311ddeead52f09 |
genre |
Atlantic salmon North Atlantic |
genre_facet |
Atlantic salmon North Atlantic |
op_source |
Royal Society Open Science, Vol 8, Iss 5 (2021) |
op_relation |
https://royalsocietypublishing.org/doi/10.1098/rsos.210265 https://doaj.org/toc/2054-5703 doi:10.1098/rsos.210265 2054-5703 https://doaj.org/article/be64033420e0438f87311ddeead52f09 |
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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1766362976854474752 |