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dc.contributor.authorKotowych, Nicholas
dc.contributor.authorSmalås, Aslak
dc.contributor.authorAmundsen, Per-Arne
dc.contributor.authorPrimicerio, Raul
dc.date.accessioned2023-10-31T11:38:25Z
dc.date.available2023-10-31T11:38:25Z
dc.date.issued2023-10-05
dc.description.abstractHigh-latitude aquatic ecosystems are responding to rapid climate warming. A longer ice-free season with higher water temperatures may accelerate somatic growth in lake ectotherms, leading to widespread ecological implications. In fish, rising temperatures are expected to boost rates of food intake and conversion, and predictions based on empirical relationships between temperature and growth suggest a substantial increase in fish growth rates during the last decades. Fish abundance negatively affects growth by limiting food availability. This field study addresses the effects of climate warming on growth of a subarctic population of Arctic charr (Salvelinus alpinus (L.) over nearly 40 years. Juvenile growth of 680 individuals of Arctic charr, was reconstructed by sclerochronological analysis using sagittal otoliths sampled annually from the early 1980s to 2016. Statistical modelling revealed a positive effect of water temperature, and a negative effect of abundance on somatic growth in juvenile individuals. Temperature dependence in growth was significant for average and fast-growing individuals across all investigated age classes. These findings suggest that, as temperatures rise, somatic growth of Arctic charr will increase in high latitude lakes. Climate warming will thus influence cold water fish life history and size-structured interactions, with important consequences for their populations and ecosystems.en_US
dc.identifier.citationKotowych, Smalås, Amundsen, Primicerio. Climate warming accelerates somatic growth of an Arctic fish species in high-latitude lakes. Scientific Reports. 2023;13en_US
dc.identifier.cristinIDFRIDAID 2189643
dc.identifier.doi10.1038/s41598-023-43654-1
dc.identifier.issn2045-2322
dc.identifier.urihttps://hdl.handle.net/10037/31660
dc.language.isoengen_US
dc.publisherSpringer Natureen_US
dc.relation.journalScientific Reports
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/H2020/677039/EU/Co-creating a decision support framework to ensure sustainable fish production in Europe under climate change/ClimeFish/en_US
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2023 The Author(s)en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0en_US
dc.rightsAttribution 4.0 International (CC BY 4.0)en_US
dc.titleClimate warming accelerates somatic growth of an Arctic fish species in high-latitude lakesen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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Attribution 4.0 International (CC BY 4.0)
Except where otherwise noted, this item's license is described as Attribution 4.0 International (CC BY 4.0)