Trent University Graduate Thesis Collection

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    Copyright for all items in the Trent University Graduate Thesis Collection is held by the author, with all rights reserved, unless otherwise noted.
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    Understanding Angler Dynamics in a Recreational Lake Trout (Salvelinus namaycush) Fishery in Algonquin Provincial Park Using Long-Term Access Creel Data

    Year: 2021, 2021
    Member of: Trent University Graduate Thesis Collection
    Name(s): Creator (cre): Cowie, Emily, Thesis advisor (ths): Ridgway, Mark, Degree committee member (dgc): de Kerckhove, Dak, Degree committee member (dgc): Whillans, Tom, Degree granting institution (dgg): Trent University
    Abstract: <p>In order to effectively manage recreational fisheries, it is important to understand how the resource is being used. In this thesis, long-term creel census data, collected on Lake Opeongo in Algonquin Provincial Park, Ontario, Canada was used to assess fine-scale angler dynamics within a recreational Lake Trout (Salvelinus namaycush) fishery. The spatial distribution of angler reported… more

    Temperature effects on the routine metabolic rates of brook trout (Salvelinus fontinalis) eggs, alevin and fry: implications for climate change

    Year: 2017, 2017
    Member of: Trent University Graduate Thesis Collection
    Name(s): Creator (cre): Cook, Catharine Jean, Thesis advisor (ths): Wilson, Chris, Thesis advisor (ths): Burness, Gary, Degree committee member (dgc): Ridgway, Mark, Degree granting institution (dgg): Trent University
    Abstract: <p>Early developmental stages of cold-adapted ectotherms such as brook trout </p><p>(Salvelinus fontinalis) are at risk of mortality with increasing water temperatures because </p><p>of their sensitivity to changes in their environment. I studied the mass and routine </p><p>metabolic rate (RMR) of wild-origin brook trout eggs, alevin and young fry reared… more

    Habitat Preferences and Feeding Ecology of Blackfin Cisco (Coregonus nigripinnis) in Northern Algonquin Provincial Park

    Year: 2017, 2017
    Member of: Trent University Graduate Thesis Collection
    Name(s): Creator (cre): Bell, Allan Henry, Thesis advisor (ths): Ridgway, Mark, Degree committee member (dgc): Wilson, Chris, Degree committee member (dgc): Fox, Michael, Degree granting institution (dgg): Trent University
    Abstract: <p>Blackfin Cisco (Coregonus nigripinnis), a deepwater cisco species once endemic to the Laurentian Great Lakes, was discovered in Algonquin Provincial Park in four lakes situated within a drainage outflow of glacial Lake Algonquin. Blackfin habitat preference was examined by analyzing which covariates best described their depth distribution using hurdle models in a multi-model approach.… more

    Constraints on phenotypic plasticity in response to predation risk: Carryover effects, maternal investment, and the starvation-predation risk trade-off

    Year: 2014, 2014
    Member of: Trent University Graduate Thesis Collection
    Name(s): Creator (cre): Bennett, Amanda Maria, Thesis advisor (ths): Murray, Dennis L, Degree committee member (dgc): Burness, Gary, Degree committee member (dgc): Kerr, Leslie, Degree committee member (dgc): Ridgway, Mark, Degree granting institution (dgg): Trent University
    Abstract: <p>Inducible defenses are plastic responses by an organism to the perception of predation risk. This dissertation focuses on three experiments designed to test the hypothesis that plastic ability is limited by energetic constraints. Chapter 1 provides a general introduction to phenotypic plasticity research and the theoretical costs and limitations affecting the expression of plastic traits… more

    Widespread changes in growth, diet and depth distribution of lake whitefish (Coregonus clupeaformis) in the Great Lakes are linked to invasive dreissenid mussels

    Year: 2014, 2014
    Member of: Trent University Graduate Thesis Collection
    Name(s): Creator (cre): Fera, Shannon A., Thesis advisor (ths): Dunlop, Erin, Thesis advisor (ths): Ridgway, Mark, Degree committee member (dgc): Dillon, Peter, Degree granting institution (dgg): Trent University
    Abstract: <p>Recent declines in growth and condition of Great Lakes' lake whitefish (Coregonus clupeaformis) have been linked to ecosystem-wide changes stemming from the invasion of dreissenid mussels. To test the influence of invasive mussels on this commercially important coregonid species, we collected archived scale samples from ten Great Lake locations and analyzed long-term changes in… more