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dc.contributor.supervisorBlanchfield, Paul (Biological Sciences)en_US
dc.contributor.authorMartens, Matthew Thomas
dc.date.accessioned2013-03-13T13:40:09Z
dc.date.available2013-03-13T13:40:09Z
dc.date.issued2013-03-13
dc.identifier.urihttp://hdl.handle.net/1993/17597
dc.description.abstractThis thesis investigates the comparative growth and mortality of a naturalized (wild) and domestic (aquaculture) strain of rainbow trout (Oncorhynchus mykiss) common to Lake Huron. I first conducted a laboratory-based experiment, comparing the growth rates of the two strains. Under optimal and competition treatments, the domestic strain achieved a body weight ~2x that of wild conspecifics. Next, I conducted a replicated, whole-ecosystem study comparing the same strains. Both strains experienced equally low survival and the domestic strain segregated into a fast-growing group, (~3x growth relative to the wild strain), and a slow-growing group that had a lower growth rate than wild trout. A high growth rate for fast-growing domestic trout was achieved by a reliance on high energy prey as well as through low metabolic costs relative to wild strains. Together, these results demonstrate that aquaculture strains of rainbow trout have greater growth potential relative to wild conspecifics and may outcompete them in nature.en_US
dc.language.isoengen_US
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectEcologyen_US
dc.subjectBiologyen_US
dc.subjectFisheriesen_US
dc.subjectAquacultureen_US
dc.titleThe comparative growth and survival of a naturalized and aquaculture strain of rainbow trout (Oncorhynchus mykiss) in laboratory and whole-ecosystem experimentsen_US
dc.typeinfo:eu-repo/semantics/masterThesis
dc.typemaster thesisen_US
dc.degree.disciplineBiological Sciencesen_US
dc.contributor.examiningcommitteeAnderson, Gary (Biological Sciences) Hanson, Mark (Environment and Geography) Devlin, Robert (Department of Fisheries and Oceans Canada)en_US
dc.degree.levelMaster of Science (M.Sc.)en_US
dc.description.noteMay 2013en_US


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