Infectious disease, shifting climates, and opportunistic predators: cumulative factors potentially impacting wild salmon declines

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dc.contributor.authorMiller, Kristina M.
dc.contributor.authorTeffer, Amy
dc.contributor.authorTucker, Strahan
dc.contributor.authorLi, Shaorong
dc.contributor.authorSchulze, Angela D.
dc.contributor.authorTrudel, Marc
dc.contributor.authorJuanes, Francis
dc.contributor.authorTabata, Amy
dc.contributor.authorKaukinen, Karia H.
dc.contributor.authorGinther, Norma G.
dc.contributor.authorMing, Tobi J.
dc.contributor.authorCooke, Steven J.
dc.contributor.authorHipfner, Mark
dc.contributor.authorPatterson, David A.
dc.contributor.authorHinch, Scott G.
dc.date.accessioned2021-07-09T15:54:51Z
dc.date.available2021-07-09T15:54:51Z
dc.date.copyright2014en_US
dc.date.issued2014
dc.description.abstractEmerging diseases are impacting animals under high-density culture, yet few studies assess their importance to wild populations. Microparasites selected for enhanced virulence in culture settings should be less successful maintaining infectivity in wild populations, as once the host dies, there are limited opportunities to infect new individuals. Instead, moderately virulent microparasites persisting for long periods across multiple environments are of greatest concern. Evolved resistance to endemic microparasites may reduce susceptibilities, but as barriers to microparasite distributions are weakened, and environments become more stressful, unexposed populations may be impacted and pathogenicity enhanced. We provide an overview of the evolutionary and ecological impacts of infectious diseases in wild salmon and suggest ways in which modern technologies can elucidate the microparasites of greatest potential import. We present four case studies that resolve microparasite impacts on adult salmon migration success, impact of river warming on microparasite replication, and infection status on susceptibility to predation. Future health of wild salmon must be considered in a holistic context that includes the cumulative or synergistic impacts of multiple tressors. These approaches will identify populations at greatest risk, critically needed to manage and potentially ameliorate the shifts in current or future trajectories of wild populations.en_US
dc.description.reviewstatusRevieweden_US
dc.description.scholarlevelFacultyen_US
dc.description.sponsorshipWe thank C. Middleton, A. Lotto, K. Jeffries and Pacific salmon ecology and conservation lab members for assistance in case study III, M. Drever, G. Keddie, E. Lok, C. Rock, D. Shervill, and K. Studholme for assistance in the field for case study IV, and J. Price for laboratory assistance in case study I. In case study II, LGL Ltd (K. English and D. Robichaud) provided data from radiotracking receivers and Kintama Research (D. Welch) provided data from acoustic receivers. Funding was provided by Genome British Columbia AGIP FishManOmics project (initial microbe monitoring platform development and case study I), Fisheries and Oceans Canada Genomics Research and Development Initiative (case study I), NSERC Partnership Grant for the Ocean Tracking Network Canada, the Canada Foundation for Innovation, and the Pacific Ocean Shelf Tracking Project (POST) (case study II), NSERC Strategic (case study III), Canadian Wildlife Service, Wildlife Research Division of Environment Canada, and the Bonneville Power Administration (case study IV). A complete evaluation of the microbe monitoring platform currently underway is funded by Genome British Columbia under phase 2a of the SSHI project.en_US
dc.identifier.citationMiller, K.M., Teffer, A., Tucker, S., Li, S., Schulze, A.D., Trudel, M., Juanes, F., Tabata, A., Kaukinen, K.H., Ginther, N.G., Ming, T.J., Cooke, S.J., Hipfner, M., Patterson, D.A., & Hinch, S.G. (2014). Infectious disease, shifting climates, and opportunistic predators: cumulative factors potentially impacting wild salmon declines. Evolutionary Applications, 7(7). https://doi.org/10.1111/eva.12164en_US
dc.identifier.urihttp://doi.org/10.1111/eva.12164
dc.identifier.urihttp://hdl.handle.net/1828/13101
dc.language.isoenen_US
dc.publisherEvolutionary Applicationsen_US
dc.subjectclimateen_US
dc.subjectcoevolutionen_US
dc.subjectcumulative impactsen_US
dc.subjectecological impactsen_US
dc.subjectinfectious diseaseen_US
dc.subjectmicroparasiteen_US
dc.subjectpredationen_US
dc.subjectwild salmonen_US
dc.titleInfectious disease, shifting climates, and opportunistic predators: cumulative factors potentially impacting wild salmon declinesen_US
dc.typeArticleen_US

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