Meeting Abstract

13.2  Jan. 4  Development of the facultatively planktotrophic echinoid Clypeaster rosaceus ZIGLER, Kirk S.; Sewanee: The University of the South kzigler@sewanee.edu

We studied the cell lineage and egg energetics of Clypeaster rosaceus, a facultatively planktotrophic echinoid from the Caribbean. We also compared C. rosaceus egg energy with its sympatric congener C. subdepressus, an obligate planktotroph, estimated when the two species diverged, and determined whether the two species are gametically compatible.