Show simple item record

dc.contributor.authorGrigg, A.G.
dc.contributor.authorLowi-Merri, T.M.
dc.contributor.authorHutchings, Jeffrey
dc.contributor.authorMassey, M.D.
dc.identifier.citationGrigg, A.G. Lowi-Merri, T.M., Hutchings, J. & Massey, M.D. (2023). Thermal variability induces sex-specific morphometric changesin zebrafish (Danio rerio). Journal of Fish Biology, 103(4), 839-850.en_US
dc.description.abstractIn nature, organisms are exposed to variable environmental conditions that impact their performance and fitness. Despite the ubiquity of environmental variability, substantial knowledge gaps in our understanding of organismal responses to nonconstant thermal regimes remain. In the present study, using zebrafish (Danio rerio) as a model organism, we applied geometric morphometric methods to examine how challenging but ecologically realistic diel thermal fluctuations experienced during different life stages influence adult body shape, size, and condition. Zebrafish were exposed to either thermal fluctuations (22–32°C) or a static optimal temperature (27°C) sharing the same thermal mean during an early period spanning embryonic and larval ontogeny (days 0–30), a later period spanning juvenile and adult ontogeny (days 31–210), or a combination of both. We found that body shape, size, and condition were affected by thermal variability, but these plasticity-mediated changes were dependent on the timing of ontogenetic exposure. Notably, after experiencing fluctuating temperatures during early ontogeny, females displayed a deeper abdomen while males displayed an elongated caudal peduncle region. Moreover, males displayed beneficial acclimation of body condition under lifelong fluctuating temperature exposure, whereas females did not. The present study, using ecologically realistic thermal regimes, provides insight into the timing of environmental experiences that generate phenotypic variation in zebrafish.en_US
dc.publisherJohn Wiley & Sonsen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.titleThermal variability induces sex-specific morphometric changes in zebrafish (Danio rerio)en_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.rights.holder© 2023 The Author(s)en_US
dc.subject.nsiVDP::Matematikk og Naturvitenskap: 400en_US
dc.source.journalJournal of Fish Biologyen_US
dc.description.localcodePaid open accessen_US

Files in this item


This item appears in the following Collection(s)

Show simple item record

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