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The response of riffles and pools to changing water contaminants in Sixteen-mile Creek, Halton, Ontario

dc.contributor.advisorMcLaren, Brian
dc.contributor.authorNorris, Ashlyne M.
dc.date.accessioned2020-05-06T20:51:49Z
dc.date.available2020-05-06T20:51:49Z
dc.date.created2020
dc.date.issued2020
dc.identifier.urihttp://knowledgecommons.lakeheadu.ca/handle/2453/4616
dc.description.abstractIncreasing water contaminants has been a growing problem in Southern Ontario due to rapid urbanization, agricultural runoff and pollution. Determining how riffles and pools respond to changing contaminants is crucial to understanding effects on species living within those particular habitats. Sites were studied along Sixteen-Mile Creek in Halton, Ontario, to compare water quality and fish occurrence. Electrofishing was used to sample Johnny darter, longnose dace, river chub and rainbow darter as models for tolerant and intolerant species. Elevated sodium chloride had an effect on all species except for the tolerant longnose dace. Meanwhile, lower dissolved oxygen and an increase in phosphorous affected both tolerant and intolerant species. Overall, water contaminants pose a great threat to aquatic ecosystems as they can lower fecundity, decrease activity, impair growth and development and reduce survivability in fishen_US
dc.language.isoen_USen_US
dc.subjectAquatic ecosystemen_US
dc.subjectStream dynamics (riffles and pools)en_US
dc.subjectEffects of urban pollution on water qualityen_US
dc.subjectEffects of pollutants on freshwater fishesen_US
dc.titleThe response of riffles and pools to changing water contaminants in Sixteen-mile Creek, Halton, Ontarioen_US
dc.typeThesisen_US
etd.degree.nameHonours Bachelor of Environmental Managementen_US
etd.degree.levelBacheloren_US
etd.degree.disciplineNatural Resources Managementen_US
etd.degree.grantorLakehead Universityen_US


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