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Otoliths as indicators of trace element exposure in freshwater fish: a mesocosm experiment with manganese and an examination of hydro-impoundment on otolith trace element signatures

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dc.contributor.supervisor Hanson, Mark (Environment and Geography) en_US
dc.contributor.author Vanderpont, Adam
dc.contributor.author Halden, Norman
dc.contributor.author Wang, Feiyue
dc.contributor.author Kenkel, Norman
dc.date.accessioned 2018-08-03T00:59:46Z
dc.date.available 2018-08-03T00:59:46Z
dc.date.issued 2018 en_US
dc.date.submitted 2018-06-29T17:18:14Z en
dc.date.submitted 2018-07-10T02:42:51Z en
dc.identifier.uri http://hdl.handle.net/1993/33195
dc.description.abstract Through biomonitoring, organisms are measured to determine levels of contamination or exposure. In freshwater, biota like fish are used to represent whole communities due to their ecological/commercial relevance. In fish, soft tissues are typically used for trace element analyses although their potential for depuration, transformation, and contaminant re-compartmentalization makes them applicable for only short-term biomonitoring. Alternatively, metabolically inert calcified tissues (e.g., otoliths) have been found useful in long-term trace element biomonitoring. Biomonitor utility was demonstrated through two studies. The first being a mesocosm study on baitfish species exposed to MnSO4 in which otolith chemical signatures were compared with the ambient mesocosm environment. Under study conditions, fish otolith biomonitors were ineffective at detecting manganese. The second study utilized fish otoliths to measure the effect of impoundment by comparing water and otolith trace element concentrations between impounded and non-impounded waterbodies. Otolith signatures successfully discriminated based on impoundment status and species. en_US
dc.subject CAMP en_US
dc.subject Otolith en_US
dc.subject Impoundment en_US
dc.subject Mesocosm en_US
dc.subject Freshwater en_US
dc.subject Lake en_US
dc.subject Wetland en_US
dc.subject Statistics en_US
dc.subject Trace en_US
dc.title Otoliths as indicators of trace element exposure in freshwater fish: a mesocosm experiment with manganese and an examination of hydro-impoundment on otolith trace element signatures en_US
dc.degree.discipline Environment and Geography en_US
dc.contributor.examiningcommittee Halden, Norman (Geological Sciences) en_US
dc.contributor.examiningcommittee Wang, Feiyue (Environment and Geography) en_US
dc.degree.level Master of Science (M.Sc.) en_US
dc.description.note October 2018 en_US


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