Interactions of temperature and sublethal environmental copper exposure on the energy metabolism of bluegill (Lepomis macrochirus)

dc.contributor.authorFelts, Paul Ansonen
dc.contributor.departmentZoologyen
dc.date.accessioned2022-05-09T15:44:59Zen
dc.date.available2022-05-09T15:44:59Zen
dc.date.issued1983en
dc.description.abstractThe effects of sublethal copper on metabolism were in vestigated in bluegill (Lepomis macrochirus) by measuring whole body oxygen consumption in fish exposed to sublethal copper alone and in conjunction with a temperature increase. In vitro oxygen consumptions of liver, brain, and gill were also measured under these two conditions, as was the accumulation of copper in these tissues. In addition, the concentration of copper in bile was measured. Copper was found to decrease whole body oxygen consumption in animals exposed to copper alone, although the oxygen consumptions of tissues were not significantly altered. This indicates that copper is acting to decrease VO₂ at a higher level of integration than the individual tissues. In animals subjected to an increase in temperature as well as sublethal copper, oxygen consumption was higher than controls five days after the temperature was increased, indicating a delay in temperature acclimation. This increase was reflected in higher in vitro oxygen consumption in the liver and gill indicating that sublethal copper delays temperature acclimation by acting directly on the tissues. Tissue copper accumulation was seen first in the gills followed by accumulation in the liver. Copper was not found to accumulate in the brain. Increased copper levels were found in the bile at all tested exposure times. A discussion of the ecological implications of these findings is included.en
dc.description.degreeM. S.en
dc.format.extentiv, 48 pages, 2 unnumbered leavesen
dc.format.mimetypeapplication/pdfen
dc.identifier.urihttp://hdl.handle.net/10919/109891en
dc.language.isoenen
dc.publisherVirginia Polytechnic Institute and State Universityen
dc.relation.isformatofOCLC# 10331629en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1983.F456en
dc.subject.lcshBluegill -- Effect of temperature onen
dc.subject.lcshBluegill -- Effect of water pollution onen
dc.subject.lcshCopper -- Metabolismen
dc.titleInteractions of temperature and sublethal environmental copper exposure on the energy metabolism of bluegill (Lepomis macrochirus)en
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineZoologyen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameM. S.en

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