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Eastern Beaufort Sea beluga (Delphinapterus leucas) body condition indicators for monitoring the Tarium Niryutait Marine Protected Area

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dc.contributor.supervisor Loseto, Lisa (Environment and Geography) Peyton, Jonathan (Environmental and Geography) en_US
dc.contributor.author MacMillan, Kathleen
dc.date.accessioned 2019-01-10T15:02:22Z
dc.date.available 2019-01-10T15:02:22Z
dc.date.issued 2018-12-26 en_US
dc.date.submitted 2018-12-27T01:53:08Z en
dc.date.submitted 2019-01-08T22:55:22Z en
dc.identifier.uri http://hdl.handle.net/1993/33689
dc.description.abstract Two body condition indicators, blubber thickness and maximal half-girth measurements, were evaluated for use to monitor the health of Eastern Beaufort Sea beluga (Delphinapterus leucas) in the Tarium Niryutait Marine Protected Area (TN MPA). Beluga body condition metrics collected from the community-based beluga monitoring program in the Inuvialuit Settlement Region from 2000-2015 were assessed. Body condition indicators based on the predicted values and residuals of fitted linear models for blubber thickness and girth were developed to account for variation in age, size, location, and timing of harvest. Statistically significant differences in condition were detected between regions of the TN MPA for three of the condition indices. The male blubber thickness indicator was found to increase during the summer harvest season. Long-term temporal analyses found that both girth indicators led the trends in both blubber thickness indicators. Lastly, two large-scale climatic variability metrics, Pacific Decadal Oscillation and sea ice minimum, were significantly negatively correlated to body condition trends. This research provides key recommendations for the TN MPA co-management agencies on the use of body condition indicators. en_US
dc.rights info:eu-repo/semantics/openAccess
dc.subject Beluga en_US
dc.subject Body condition en_US
dc.subject Indicator en_US
dc.subject Marine protected areas en_US
dc.subject Arctic en_US
dc.subject Monitoring en_US
dc.title Eastern Beaufort Sea beluga (Delphinapterus leucas) body condition indicators for monitoring the Tarium Niryutait Marine Protected Area en_US
dc.type info:eu-repo/semantics/masterThesis
dc.type master thesis en_US
dc.degree.discipline Environment and Geography en_US
dc.contributor.examiningcommittee Hanson, Mark (Environment and Geography) Roth, James (Biological Sciences) en_US
dc.degree.level Master of Science (M.Sc.) en_US
dc.description.note February 2019 en_US


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