The Body Design of Hagfishes (Eptatretus stoutii and Myxine glutinosa) Protects from Biting Predators

dc.contributor.advisorFudge, Douglas S
dc.contributor.advisorWright, Patricia A
dc.contributor.authorBoggett, Sarah
dc.date.accessioned2017-04-24T17:02:24Z
dc.date.available2017-04-24T17:02:24Z
dc.date.copyright2017-04
dc.date.created2017-04-07
dc.date.issued2017-04-24
dc.degree.departmentDepartment of Integrative Biologyen_US
dc.degree.grantorUniversity of Guelphen_US
dc.degree.nameMaster of Scienceen_US
dc.degree.programmeIntegrative Biologyen_US
dc.description.abstractThis thesis investigates how the body structure of hagfishes plays a role in defence against biting predators. Evidence of hagfish being attacked by biting predators show them swimming away relatively unscathed even after a violent initial attack. I hypothesized that the flaccid and loose body design of hagfishes protects them from biting predators by the minimal attachments between the skin and musculature combined with a large subcutaneous sinus allowing its internal organs to avoid damage from penetrating teeth. To test this, I quantified the flaccidity of the subcutaneous sinus, simulated shark attacks with a customized guillotine, and manipulated the adhesion and flaccidity between the skin and body of hagfishes and lamprey. Here I provide evidence consistent with my hypothesis. This ability of hagfishes to survive initial attacks from biting predators may be an essential component of a strategy that relies on defensive slime to thwart further attacks.en_US
dc.description.sponsorshipNatural Sciences and Engineering Research Council of Canada
dc.identifier.urihttp://hdl.handle.net/10214/10321
dc.language.isoenen_US
dc.publisherUniversity of Guelphen_US
dc.rights.licenseAll items in the Atrium are protected by copyright with all rights reserved unless otherwise indicated.
dc.subjecthagfishen_US
dc.subjectsharken_US
dc.subjectsubcutaneous sinusen_US
dc.subjectpredatoren_US
dc.subjectpreyen_US
dc.subjectskinen_US
dc.subjectlooseen_US
dc.subjectflacciden_US
dc.titleThe Body Design of Hagfishes (Eptatretus stoutii and Myxine glutinosa) Protects from Biting Predatorsen_US
dc.typeThesisen_US

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