Multigenerational effects of selenium in rainbow trout, brook trout, and cutthroat trout

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dc.contributor.authorPilgrim, Nicole L.
dc.contributor.supervisorHontela, Alice
dc.date.accessioned2013-10-31T20:28:13Z
dc.date.available2013-10-31T20:28:13Z
dc.date.issued2012
dc.degree.levelMasters
dc.descriptionxi, 123 leaves : ill. ; 29 cmen_US
dc.description.abstractSelenium (Se) is an essential element, toxic at concentrations only slightly above those required. It can become detrimental to fish health when available in excess in the aquatic environment. This study examined the effects of Se on adult female rainbow trout, brook trout, and cutthroat trout fed Se-methionine for five months, and on their larvae. Differences between fish species and between tissues were observed in the accumulation of Se in adults, and dose-dependent effects of Se on plasma thyroid hormone concentrations in brook trout, gonad size in all three species, and indicators of oxidative stress in rainbow trout and cutthroat trout, were detected. Survival of larvae and swim-up success decreased with increasing egg Se concentrations in rainbow trout and cutthroat trout, however, the same effects were not observed in brook trout. Data from this study provide new evidence for species-specific Se accumulation and toxicity in salmonid fish.en_US
dc.identifier.urihttps://hdl.handle.net/10133/3299
dc.language.isoen_CAen_US
dc.publisherLethbridge, Alta. : University of Lethbridge, Dept. of Biological Sciences, c2012en_US
dc.publisher.departmentBiological Sciences Departmenten_US
dc.publisher.facultyArts and Scienceen_US
dc.relation.ispartofseriesThesis (University of Lethbridge. Faculty of Arts and Science)en_US
dc.subjectSelenium -- Toxicologyen_US
dc.subjectRainbow trout -- Effect of selenim on -- Researchen_US
dc.subjectCutthroat trout -- Effect of selenium on -- Researchen_US
dc.subjectBrook trout -- Effect of selenium on -- Researchen_US
dc.subjectEnvironmental toxicology -- Researchen_US
dc.subjectDissertations, Academicen_US
dc.titleMultigenerational effects of selenium in rainbow trout, brook trout, and cutthroat trouten_US
dc.typeThesisen_US
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