The effect of temperature on calcification in Bossiena orbigniana orbigniana (Decaisne, 1842) [Manza, 1940; Silva, 1957] (Corallinaceae) was studied using calcium-45 labeling of terminal segments under laboratory conditions. B. orbigniana has optimum calcium uptake for the temperatures 17-21°C within a temperature range of 3-37°C. These results suggest that optimum calcification in B. orbigniana should take place from late spring to early autumn. Q10 values for 3-21°C averaged 3.39 indicating an enzyme-governed reaction. It is proposed that thallus growth rate and calcification are not directly related. It is believed that the optimum temperatures (17-21°C) affect the enzymes towards an increase in the rate of calcification and perhaps the rates of photosynthesis and respiration.
Ariel A. Roth
Ian M. Fraser
Conrad D. Clausen
Master of Arts (MA)
Year Degree Awarded
Date (Title Page)
Library of Congress/MESH Subject Headings
Coralline Algae; Calcification.
Loma Linda University Libraries
This title appears here courtesy of the author, who has granted Loma Linda University a limited, non-exclusive right to make this publication available to the public. The author retains all other copyrights.
Thomas, Carolyn M., "Effects of Temperature on Calcium Uptake in BOSSIELLA ORBIGNIANA ORBIGNIANA" (1976). Loma Linda University Electronic Theses, Dissertations & Projects. 913.
Loma Linda University Electronic Theses and Dissertations
Loma Linda University. Del E. Webb Memorial Library. University Archives