Salmon lice in the Pacific Ocean show evidence of evolved resistance to parasiticide treatment
Godwin, S. C., Bateman, A. W., Kuparinen, A., Johnson, R., Powell, J., Speck, K., & Hutchings, J. A. (2022). Salmon lice in the Pacific Ocean show evidence of evolved resistance to parasiticide treatment. Scientific Reports, 12, Article 4775. https://doi.org/10.1038/s41598-022-07464-1
Julkaistu sarjassa
Scientific ReportsTekijät
Päivämäärä
2022Tekijänoikeudet
© The Author(s) 2022
Parasitic salmon lice (Lepeophtheirus salmonis) threaten the economic and ecological sustainability of salmon farming, and their evolved resistance to treatment with emamectin benzoate (EMB) has been a major problem for salmon farming in the Atlantic Ocean. In contrast, the Pacific Ocean, where wild salmon are far more abundant, has not seen widespread evolution of EMB-resistant lice. Here, we use EMB bioassays and counts of lice on farms from the Broughton Archipelago, Canada—a core region of salmon farming in the Pacific—to show that EMB sensitivity has dramatically decreased since 2010, concurrent with marked decrease in the field efficacy of EMB treatments. Notably, these bioassay data were not made available through public reporting by industry or by the federal regulator, but rather through Indigenous-led agreements that created a legal obligation for salmon-farming companies to provide data to First Nations. Our results suggest that salmon lice in the Pacific Ocean have recently evolved substantial resistance to EMB, and that salmon-louse outbreaks on Pacific farms will therefore be more difficult to control in the coming years.
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Julkaisija
Springer Science and Business Media LLCISSN Hae Julkaisufoorumista
2045-2322Asiasanat
Julkaisu tutkimustietojärjestelmässä
https://converis.jyu.fi/converis/portal/detail/Publication/117552191
Metadata
Näytä kaikki kuvailutiedotKokoelmat
Rahoittaja(t)
Suomen Akatemia; Euroopan komissioRahoitusohjelmat(t)
Akatemiahanke, SA
The content of the publication reflects only the author’s view. The funder is not responsible for any use that may be made of the information it contains.
Lisätietoja rahoituksesta
This research was funded by a Liber Ero Postdoctoral Fellowship (to S.C.G), NSERC Discovery Grants (RGPIN-2021-04372 to J.A.H. and RGPIN-2015-04249 to A.K.), the European Research Council (COMPLEX-FISH 770884 to A.K.), and the Academy of Finland (317495 to A.K.).Lisenssi
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