Increasing temperatures accentuate negative fitness consequences of a marine parasite
Godwin, S. C., Fast, M. D., Kuparinen, A., Medcalf, K. E., & Hutchings, J. A. (2020). Increasing temperatures accentuate negative fitness consequences of a marine parasite. Scientific Reports, 10, Article 18467. https://doi.org/10.1038/s41598-020-74948-3
Published inScientific Reports
DisciplineAkvaattiset tieteetAquatic Sciences
© 2020 the Authors
Infectious diseases are key drivers of wildlife populations and agriculture production, but whether and how climate change will influence disease impacts remains controversial. One of the critical knowledge gaps that prevents resolution of this controversy is a lack of high-quality experimental data, especially in marine systems of significant ecological and economic consequence. Here, we performed a manipulative experiment in which we tested the temperature-dependent effects on Atlantic salmon (Salmo salar) of sea lice (Lepeophtheirus salmonis)—a parasite that can depress the productivity of wild-salmon populations and the profits of the salmon-farming industry. We explored sea-louse impacts on their hosts across a range of temperatures (10, 13, 16, 19, and 22 °C) and infestation levels (zero, ‘low’ (mean abundance ± SE = 1.6 ± 0.1 lice per fish), and ‘high’ infestation (6.8 ± 0.4 lice per fish)). We found that the effects of sea lice on the growth rate, condition, and survival of juvenile Atlantic salmon all worsen with increasing temperature. Our results provide a rare empirical example of how climate change may influence the impacts of marine disease in a key social-ecological system. These findings underscore the importance of considering climate-driven changes to disease impacts in wildlife conservation and agriculture. ...
PublisherNature Publishing Group
ISSN Search the Publication Forum2045-2322
Publication in research information system
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Related funder(s)European Commission
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.
Additional information about fundingThis research was funded by Liber Ero (via a postdoctoral fellowship to S. Godwin), the Natural Sciences and Engineering Research Council (Discovery Grants to J. Hutchings (170146-2013) and A. Kuparinen (04249-2015)), the Atlantic Salmon Conservation Foundation (to S. Godwin and J. Hutchings), the Atlantic Canada Opportunities Agency in association with the Atlantic Innovation Fund (to M. Fast), the Ocean Frontiers Institute (to M. Fast), the Academy of Finland (to A. Kuparinen), and the European Research Council (COMPLEX-FISH 770884 to A. Kuparinen). ...
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