A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Salmon lice in the Pacific Ocean show evidence of evolved resistance to parasiticide treatment (2022)

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

JYU-tekijät tai -toimittajat

Kuparinen, Anna

Julkaisun tiedot

Julkaisun kaikki tekijät tai toimittajat: Godwin, Sean C.; Bateman, Andrew W.; Kuparinen, Anna; Johnson, Rick; Powell, John; Speck, Kelly; Hutchings, Jeffrey A.

Lehti tai sarja: Scientific Reports

eISSN: 2045-2322

Julkaisuvuosi: 2022

Ilmestymispäivä: 28.03.2022

Volyymi: 12

Artikkelinumero: 4775

Kustantaja: Springer Science and Business Media LLC

Julkaisumaa: Britannia

Julkaisun kieli: englanti

DOI: https://doi.org/10.1038/s41598-022-07464-1

Linkki tutkimusaineistoon: https://doi.org/10.5281/zenodo.6341974

Julkaisun avoin saatavuus: Avoimesti saatavilla

Julkaisukanavan avoin saatavuus: Kokonaan avoin julkaisukanava

Julkaisu on rinnakkaistallennettu (JYX): https://jyx.jyu.fi/handle/123456789/80482

Tiivistelmä

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.

YSO-asiasanat: lohi; loiset; täit; kalanviljely; resistenssi; meribiologia

Vapaat asiasanat: emamektiinibentsoaatti; Lepeophtheirus salmonis

Tieteenalat: