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Sex- and Age-Dependent Differences and Habitat Influences on Demersal Arctic Cod, Boreogadus saida (Lepechin 1774) Diet and Energy Allocation in the Canadian Beaufort Sea

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dc.contributor.supervisor Treberg, Jason (Biological Sciences) Reist, James D. (Adjunct, Biological Sciences) en_US
dc.contributor.author Lynn, Brittany
dc.date.accessioned 2016-09-16T13:58:31Z
dc.date.available 2016-09-16T13:58:31Z
dc.date.issued 2016
dc.identifier.uri http://hdl.handle.net/1993/31787
dc.description.abstract Arctic Cod, Boreogadus saida (Lepechin 1774) occur throughout the circumpolar north at all levels of the water column depending on their life history stage, the time of day, the season, and their activity. Arctic Cod are the most abundant fish species in the Canadian Beaufort Sea (CBS) ecosystem, and are an important link in the flow of energy within the food web. This study examined differences in energy acquisition and usage in Arctic Cod among three depth zones in the CBS (from 15-800m) by examining stomach contents and physiological indicators, taking into account sex, age and body size. Nonparametric comparison analyses found no differences with depth, but support for an ontogenetic shift in diet regarding prey size, a difference in energy content of an average diet between size classes 1 (30-60mm) and 2-4 (2: 60-90mm; 3: 90-120mm; 4: >120mm), and a slight positive relationship between physiological indicators and body size. en_US
dc.subject Arctic, Bioenergetics, Fishes, Growth, Beaufort sea, Arctic cod en_US
dc.title Sex- and Age-Dependent Differences and Habitat Influences on Demersal Arctic Cod, Boreogadus saida (Lepechin 1774) Diet and Energy Allocation in the Canadian Beaufort Sea en_US
dc.degree.discipline Biological Sciences en_US
dc.contributor.examiningcommittee Davoren, Gail (Biological Sciences) Walkusz, Wojciech (Fisheries and Oceans Canada) en_US
dc.degree.level Master of Science (M.Sc.) en_US
dc.description.note October 2016 en_US


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