The effects of repeat acute thermal stress on the critical thermal maximum (CTmax) and physiology of juvenile shortnose sturgeon (Acipenser brevirostrum)

dc.contributor.advisorKieffer, James
dc.contributor.authorBard, Brittany
dc.date.accessioned2023-06-07T20:40:14Z
dc.date.available2023-06-07T20:40:14Z
dc.date.issued2018
dc.description.abstractThe shortnose sturgeon (Acipenser brevirostrum) is a species of special concern in Canada, but little is known about their thermal biology. Information on the upper thermal tolerance of shortnose sturgeon becomes valuable for predicting future survival particularly with climate change and improving species management. Using standard critical thermal maximum (CTmax) methodology, the objective is to determine whether previous thermal stress affected the CTmax of juvenile shortnose sturgeon when exposed to a secondary thermal stress event. Prior exposure to thermal stress did not affect CTmax 2 of juvenile shortnose sturgeon, when a 24h recovery period is allotted between tests. Plasma glucose, lactate and osmolarity were all significantly affected by thermal stress, but values returned to control levels within 24hrs. Hematocrit, plasma chloride and protein concentrations were not significantly affected by thermal stress. The data supports the hypothesis that repeated thermal stress does not affect the CTmax of juvenile shortnose sturgeon.
dc.description.copyrightThis work is licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this license, visit: http://creativecommons.org/licenses/by/4.0/ or send a letter to Creative Commons, PO Box 1866, Mountain View, CA 94042, USA.
dc.format.extentvii, 42 pages
dc.format.mediumelectronic
dc.identifier.urihttps://unbscholar.lib.unb.ca/handle/1882/34903
dc.language.isoen_CA
dc.publisherUniversity of New Brunswick
dc.rightshttp://purl.org/coar/access_right/c_16ec
dc.subject.disciplineBiology
dc.titleThe effects of repeat acute thermal stress on the critical thermal maximum (CTmax) and physiology of juvenile shortnose sturgeon (Acipenser brevirostrum)
dc.typesenior report
thesis.degree.disciplineBiology
thesis.degree.fullnameBachelor of Science with Honours in Marine Biology
thesis.degree.grantorUniversity of New Brunswick
thesis.degree.levelundergraduate
thesis.degree.nameB.Sc.

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