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Life history variability in maturity and the influence of environment in Atlantic Salmon, Salmo salar, and Bullethead Parrotfish, Chlorurus sordidus and C. spilurus, under climate change

dc.contributor.authorKitching, Tor
dc.contributor.copyright-releaseNot Applicableen_US
dc.contributor.degreeMaster of Scienceen_US
dc.contributor.departmentDepartment of Biologyen_US
dc.contributor.ethics-approvalNot Applicableen_US
dc.contributor.external-examinerSean Coxen_US
dc.contributor.graduate-coordinatorDaniel Ruzzanteen_US
dc.contributor.manuscriptsYesen_US
dc.contributor.thesis-readerGlenn Crossinen_US
dc.contributor.thesis-readerJeffrey Hutchingsen_US
dc.contributor.thesis-supervisorAaron MacNeilen_US
dc.date.accessioned2021-12-20T13:11:11Z
dc.date.available2021-12-20T13:11:11Z
dc.date.defence2021-12-07
dc.date.issued2021-12-20T13:11:11Z
dc.description.abstractLife history transitions are periods between lifecycle stages defined by physiological, morphological, or spatial change. By assessing the timing of transitions, we increase our understanding of the trade-offs in traits to maximize fitness. One such transition is maturity, which we study because it is required for successful reproduction. In this thesis, we explore maturation strategies and the drivers of their plasticity in two fish taxa. Here we show evidence of (1) inter- and intra- population variability in mature male parr age at maturity driven by intrinsic population-level differences and thermal experience in Atlantic Salmon and (2) population demography as a driver of size at phase change in protogynous Bullethead parrotfish. Identifying the drivers of plasticity in maturity traits and how maturation timing may change with environmental variability in fish taxa can provide ecological predictions of population dynamics and inform fisheries management.en_US
dc.identifier.urihttp://hdl.handle.net/10222/81127
dc.language.isoenen_US
dc.subjectLife historyen_US
dc.subjectMaturityen_US
dc.subjectModellingen_US
dc.subjectSalmo salaren_US
dc.subjectChlorurus sordidusen_US
dc.subjectChlorurus spilurusen_US
dc.titleLife history variability in maturity and the influence of environment in Atlantic Salmon, Salmo salar, and Bullethead Parrotfish, Chlorurus sordidus and C. spilurus, under climate changeen_US

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