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dc.contributor.authorYoung, Neera Chhabra
dc.date.accessioned2014-03-03T23:06:43Z
dc.date.available2014-03-03T23:06:43Z
dc.date.issued2004-08
dc.identifier.otheryoung_neera_c_200408_ms
dc.identifier.urihttp://purl.galileo.usg.edu/uga_etd/young_neera_c_200408_ms
dc.identifier.urihttp://hdl.handle.net/10724/22036
dc.description.abstractLargemouth bass (Micropterus salmoides) from L Lake, Par Pond, and Pond B located on the Savannah River Site in SC, were analyzed for mercury concentration, length, weight, and age. Fish skull asymmetries were assessed using geometric morphometrics by landmarking dorsal and ventral images. Mercury was positively correlated with fish length, weight, and age for all populations, but not with age for Par Pond. Directional asymmetry was significant in each population but not different among populations. Each population had significant levels of fluctuating asymmetry (FA), but the only difference was that Par Pond had greater FA than Pond B for the dorsal view of the skull. Correlations between individual overall asymmetry values and Hg for either view were not significant for any population or for populations considered together. Patterns of variation in asymmetry and mercury concentrations among locations were not consistent.
dc.languageeng
dc.publisheruga
dc.rightspublic
dc.subjectDirectional asymmetry
dc.subjectFish skull
dc.subjectFluctuating asymmetry
dc.subjectGeometric morphometrics
dc.subjectMercury
dc.subjectLandmarking
dc.subjectLargemouth bass
dc.subjectSymmetric shape variation
dc.subjectMicropterus salmoides
dc.subjectOverall asymmetry
dc.titleEffect of mercury concentration on asymmetry in fish skulls
dc.typeThesis
dc.description.degreeMS
dc.description.departmentEcology
dc.description.majorToxicology
dc.description.advisorCharles H. Jagoe
dc.description.committeeCharles H. Jagoe
dc.description.committeeMachelle Wilson
dc.description.committeeI. Lehr Brisbin, Jr.


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