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dc.contributor.authorDunlop, Kathy
dc.contributor.authorEloranta, Antti P.
dc.contributor.authorSchoen, Erik
dc.contributor.authorWipfli, Mark
dc.contributor.authorJensen, Jenny L.A.
dc.contributor.authorMuladal, Rune
dc.contributor.authorChristensen, Guttorm N.
dc.date.accessioned2021-02-01T10:45:40Z
dc.date.available2021-02-01T10:45:40Z
dc.date.issued2021
dc.identifier.citationDunlop, K., Eloranta, A. P., Schoen, E., Wipfli, M., Jensen, J. L., Muladal, R., & Christensen, G. N. (2021). Evidence of energy and nutrient transfer from invasive pink salmon (Oncorhynchus gorbuscha) spawners to juvenile Atlantic salmon (Salmo salar) and brown trout (Salmo trutta) in northern Norway. <i>Ecology of Freshwater Fish</i>, <i>30</i>(2), 270-283. <a href="https://doi.org/10.1111/eff.12582" target="_blank">https://doi.org/10.1111/eff.12582</a>
dc.identifier.otherCONVID_47067944
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/73909
dc.description.abstractRecent large influxes of non‐native Pacific pink salmon (Oncorhynchus gorbuscha) to North European rivers have raised concern over their potential negative impacts on native salmonids and recipient ecosystems. The eggs and carcasses of semelparous pink salmon may provide a significant nutrient and energy subsidy to native biota, but this phenomenon has not been widely documented outside the species' native distribution. We analysed the stomach contents and stable isotope values (δ15N and δ13C) in muscle and liver tissues of juvenile Atlantic salmon (Salmo salar) and brown trout (Salmo trutta) to determine whether these native salmonids utilise marine‐derived nutrients and energy provided by pink salmon eggs and carcasses in the subarctic river system Vesterelva, northern Norway. Although egg foraging and assimilation of marine‐derived nutrients in fish body tissues were found to be minor at the population level, a few juvenile salmon and trout had recently eaten large quantities of pink salmon eggs. Some of these individuals also had high δ15N and δ13C values, indicating a long‐term diet subsidised by marine‐derived nutrients and energy from pink salmon eggs. Hence, our study provides novel evidence that the eggs of invasive pink salmon may provide an energetic, profitable food resource for juvenile native fish. More research is needed to understand the broader ecological implications for fishes and other biota in river ecosystems invaded by pink salmon.en
dc.format.mimetypeapplication/pdf
dc.languageeng
dc.language.isoeng
dc.publisherWiley-Blackwell
dc.relation.ispartofseriesEcology of Freshwater Fish
dc.rightsCC BY 4.0
dc.subject.otheregg predation
dc.subject.othermarine‐derived nutrients
dc.subject.othernon‐native salmonids
dc.subject.otherresource subsidy
dc.subject.otherstable isotope analysis
dc.subject.othersubarctic river
dc.titleEvidence of energy and nutrient transfer from invasive pink salmon (Oncorhynchus gorbuscha) spawners to juvenile Atlantic salmon (Salmo salar) and brown trout (Salmo trutta) in northern Norway
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-202102011367
dc.contributor.laitosBio- ja ympäristötieteiden laitosfi
dc.contributor.laitosDepartment of Biological and Environmental Scienceen
dc.contributor.oppiaineAkvaattiset tieteetfi
dc.contributor.oppiaineAquatic Sciencesen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.description.reviewstatuspeerReviewed
dc.format.pagerange270-283
dc.relation.issn0906-6691
dc.relation.numberinseries2
dc.relation.volume30
dc.type.versionpublishedVersion
dc.rights.copyright© 2020 The Authors. Ecology of Freshwater Fish published by John Wiley & Sons Lt.
dc.rights.accesslevelopenAccessfi
dc.subject.ysoravinnekierto
dc.subject.ysoisotooppianalyysi
dc.subject.ysojoet
dc.subject.ysoravintoverkot
dc.subject.ysovieraslajit
dc.subject.ysolohikalat
dc.subject.ysovesiekosysteemit
dc.subject.ysotaimen
dc.subject.ysolohi
dc.subject.ysosubarktinen vyöhyke
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p22936
jyx.subject.urihttp://www.yso.fi/onto/yso/p38901
jyx.subject.urihttp://www.yso.fi/onto/yso/p3259
jyx.subject.urihttp://www.yso.fi/onto/yso/p22082
jyx.subject.urihttp://www.yso.fi/onto/yso/p23747
jyx.subject.urihttp://www.yso.fi/onto/yso/p4245
jyx.subject.urihttp://www.yso.fi/onto/yso/p11000
jyx.subject.urihttp://www.yso.fi/onto/yso/p13633
jyx.subject.urihttp://www.yso.fi/onto/yso/p15656
jyx.subject.urihttp://www.yso.fi/onto/yso/p22814
dc.rights.urlhttps://creativecommons.org/licenses/by/4.0/
dc.relation.doi10.1111/eff.12582
jyx.fundinginformationFRAM ‐ High North Research Centre for Climate and the Environment. Terrestrial Flagship.


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