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dc.contributor.authorJonsson, Bror
dc.contributor.authorJonsson, Nina
dc.description.abstractTemperature during embryonic development affects ecological traits and influences the ability to rapidly adapt to the prevailing conditions in changing environments. Here, we review examples of how these developmental effects are manifested in life-history traits from studies of various fish species, with examples of impacts on somatic growth, age at migration and maturation, allocation of resources to gonads and egg size. Temperature during embryogenesis appears important for some behavioural decisions, such as when maturing Atlantic salmon Salmo salar return home from the ocean for spawning in distant rivers during summer. In some species, early temperature influences sex determination. The temperature level during embryogenesis may preadapt the fish to maximize offspring production under the thermal conditions encountered at the embryo stage. This thermal influence is a phenotypically plastic response that triggers polyphenism in salmonids and may be a first step in speciation of North American darters (Percidae). The responses to early temperature appear to be regulated by epigenetic mechanisms, such as DNA methylation, histone modification and micro RNAsnb_NO
dc.rightsNavngivelse 4.0 Internasjonal*
dc.subjectPhenotypic plasticitynb_NO
dc.subjectGene expressionnb_NO
dc.subjectLife-history charactersnb_NO
dc.titlePhenotypic plasticity and epigenetics of fish: Embryo temperature affects later-developing life-history traitsnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.rights.holder© The authors 2019.nb_NO
dc.subject.nsiVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480nb_NO
dc.source.journalAquatic Biologynb_NO

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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal