Abstract

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.

LLU Discipline

Biology

Department

Biology

School

Graduate School

First Advisor

Ariel A. Roth

Second Advisor

Ian M. Fraser

Third Advisor

Conrad D. Clausen

Degree Name

Master of Arts (MA)

Degree Level

M.A.

Year Degree Awarded

1976

Date (Title Page)

6-1976

Language

English

Library of Congress/MESH Subject Headings

Coralline Algae; Calcification.

Type

Thesis

Page Count

viii; 101

Digital Format

PDF

Digital Publisher

Loma Linda University Libraries

Usage Rights

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.

Collection

Loma Linda University Electronic Theses and Dissertations

Collection Website

http://scholarsrepository.llu.edu/etd/

Repository

Loma Linda University. Del E. Webb Memorial Library. University Archives

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