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Evaluating Juvenile Salmonid Physical Habitat Use and Characteristics Using A Spatially Explicit Bioenergetics Model And Remote Underwater Video Surveys

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dc.contributor.advisor Cockburn, Jaclyn
dc.contributor.author Tweedie, John
dc.date.accessioned 2018-09-11T13:24:13Z
dc.date.available 2018-09-11T13:24:13Z
dc.date.copyright 2018-08
dc.date.created 2018-08-15
dc.date.issued 2018-09-11
dc.identifier.uri http://hdl.handle.net/10214/14273
dc.description.abstract Understanding physical and biotic aspects of juvenile salmonid habitat is imperative to conservation and restoration efforts. Empirical weighted usable area (WUA) models have been widely adopted to assess riverine habitat suitability but suffer from over-generalized and non- transferable outputs. Directly linking biophysical conditions to metabolic responses using bioneregetics models allows highly transferable growth rate potential predictions. A coupled hydraulic and drift foraging bioenergetics model was applied to two Credit River reaches to assess the influence of channel structure on salmonid habitat. Boulders in the mid-channel sections were observed to increase flow heterogeneity and create velocity refuge and favourable feeding gradients in their wakes. Model output comparison to fish distribution data, generated using remote underwater video (RUV) techniques, indicated that fish using near-bed shear zones as refuge and vertical velocity gradients for feeding was an important behaviour discounted when utilizing depth averaged hydraulic model data. en_US
dc.description.sponsorship GEO Morphix Ltd., Canadian Innovation Foundation grant to J. Cockburn en_US
dc.language.iso en en_US
dc.subject Research Subject Categories en_US
dc.subject Bioenergetics en_US
dc.subject Hydrology en_US
dc.subject Fluvial Geomorphology en_US
dc.subject Ecology en_US
dc.subject Atlantic Salmon en_US
dc.subject Salmonid Habitat en_US
dc.subject River2D en_US
dc.title Evaluating Juvenile Salmonid Physical Habitat Use and Characteristics Using A Spatially Explicit Bioenergetics Model And Remote Underwater Video Surveys en_US
dc.type Thesis en_US
dc.degree.programme Geography en_US
dc.degree.name Master of Science en_US
dc.degree.department Department of Geography, Environment and Geomatics en_US
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