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dc.contributor.authorRenault, Isabelle
dc.date.accessioned2022-02-01T14:48:21Z
dc.date.available2022-02-01T14:48:21Z
dc.date.issued2022-02-01T14:48:21Z
dc.identifier.urihttp://hdl.handle.net/10222/81280
dc.description.abstractLearning more about crustacean health and immunity is important to protect them from infections and disease outbreaks. Little is known about the evolution of antilipopolysaccharide factors (ALFs), so this study examined the phylogeny of 291 ALF sequences of decapods using unrooted Maximum Likelihood trees. Due to the heterogeneity of the trees, it is likely that ALFs evolved over a series of successive gene duplications followed by neofunctionalization. The acanthocephalan Profilicollis botulus has the intermediate host Carcinus maenas. The goal of this project was to identify whether infected crabs displayed different behaviours compared to uninfected ones. Three behaviour trials were conducted on crabs (n = 37) from a Nova Scotia population (mirror approach test, open field test, and background preference test). No significant differences were detected between infected and uninfected crabs. This has interesting implications for our knowledge of acanthocephalans, as host manipulation is predicted to be their ancestral trait.en_US
dc.language.isoenen_US
dc.subjectImmunologyen_US
dc.subjectParasitologyen_US
dc.subjectAnimal Behaviouren_US
dc.titleExploring Crustacean Health: Effect of Profilicollis botulus Infection on the Behaviour of Carcinus maenas and Antilipopolysaccharide Factor Phylogeny in Decapodaen_US
dc.date.defence2022-01-21
dc.contributor.departmentFaculty of Agricultureen_US
dc.contributor.degreeMaster of Scienceen_US
dc.contributor.external-examinern/aen_US
dc.contributor.graduate-coordinatorDr. Gordon Priceen_US
dc.contributor.thesis-readerDr. Sarah Stewart-Clarken_US
dc.contributor.thesis-readerDr. Shelley Adamoen_US
dc.contributor.thesis-supervisorDr. Fraser Clarken_US
dc.contributor.ethics-approvalNot Applicableen_US
dc.contributor.manuscriptsNoen_US
dc.contributor.copyright-releaseNoen_US
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