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MS (Master of Science)
Date of Award
Committee Chair or Co-Chairs
Karl H. Joplin, Thomas C. Jones
Thermal adaptation in freshwater planktonic crustacean Daphnia pulex has been investigated by means of heatshock (35°C) experiments using individuals acclimated to different water temperatures (18, 24, and 28°C). Retention of mobility and survival during the heatshock experiments differed among clones and strongly depended on acclimation temperature: clones acclimated to substressful temperature (28°C) survived significantly longer than clones acclimated to lower temperatures. Both retention of mobility and survival correlated with geographic latitude of the clones' origin. There was, on the other hand, no significant correlation between clones' performance in heatshock experiments and hemoglobin content. Clones do not differ in the degree of the effect of acclimation on survival during heatshock but differ with respect to the effect of acclimation on mobility retention.
Thesis - Campus Only
Williams, Patricia Jean, "Thermal Adaptation in Daphnia pulex." (2010). Electronic Theses and Dissertations. Paper 1698. https://dc.etsu.edu/etd/1698
Copyright by the authors.