Mercury biomagnification in freshwater ecosystems of Nova Scotia

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dc.contributor.advisor Campbell, Linda M., 1970-
dc.coverage.spatial Nova Scotia
dc.creator MacLeod, Kaylee R.
dc.date.accessioned 2023-01-31T15:35:30Z
dc.date.available 2023-01-31T15:35:30Z
dc.date.issued 2022-12-19
dc.identifier.uri http://library2.smu.ca/xmlui/handle/01/31282
dc.description 1 online resource (iv, 136 pages) : maps (some colour), charts (some colour), graphs (some colour)
dc.description Includes abstract and appendices.
dc.description Includes bibliographical references (pages 22-31, 61-68, 128-135).
dc.description.abstract Mercury (Hg) biomagnifies consistently in aquatic food webs around the world. This can be a human health concern in areas with recreational and subsistence fisheries, as the main biomagnifying agent (methylmercury), is a potent neurotoxin. My objective was to assess mercury biomagnification rates in freshwater ecosystems across Nova Scotia and provide data on potential Hg risk in freshwater based on environmental parameters. Trophic magnification slope factors and intercepts varied significantly among the 21 waterbodies examined (TMS; 0.021 - 0.423). Potential bioavailable Hg in freshwater, calculated using water quality data (chlorophyll-a, phosphorus, total organic carbon, and pH) and percent wetland cover, showed that Hg risk varied across the province. en_CA
dc.description.provenance Submitted by Greg Hilliard (greg.hilliard@smu.ca) on 2023-01-31T15:35:30Z No. of bitstreams: 1 MacLeod_Kaylee_MASTERS_2022.pdf: 4412202 bytes, checksum: f7c62e54999a61d812289e1194f4a139 (MD5) en
dc.description.provenance Made available in DSpace on 2023-01-31T15:35:30Z (GMT). No. of bitstreams: 1 MacLeod_Kaylee_MASTERS_2022.pdf: 4412202 bytes, checksum: f7c62e54999a61d812289e1194f4a139 (MD5) Previous issue date: 2022-12-19 en
dc.language.iso en en_CA
dc.publisher Halifax, N.S. : Saint Mary's University
dc.subject.lcsh Fresh water -- Mercury content -- Nova Scotia
dc.subject.lcsh Methylmercury -- Bioaccumulation -- Nova Scotia
dc.subject.lcsh Mercury -- Bioaccumulation -- Risk assessment -- Nova Scotia
dc.subject.lcsh Mercury -- Environmental aspects -- Nova Scotia
dc.subject.lcsh Freshwater ecology -- Nova Scotia
dc.subject.lcsh Food chains (Ecology) -- Nova Scotia
dc.title Mercury biomagnification in freshwater ecosystems of Nova Scotia en_CA
dc.type Text en_CA
thesis.degree.name Master of Science in Applied Science
thesis.degree.level Masters
thesis.degree.discipline Environmental Science
thesis.degree.grantor Saint Mary's University (Halifax, N.S.)
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