(full paper is archived in the Miller Library)
Title: Diel vertical migrations of the trochid gastropod, Tegula pulligp, on Macrocystis pyrifera in a central California kelp forest
Student Author(s): Thornton, Christopher
Faculty Advisor(s): Baxter, Charles
Location: Final Papers Biology 175H
Date: June 1978
Keywords: biological rhythms in marine and maritime organisms
Abstract: 1. Tegula pulligo exhibits a diel vertical migration on the stipes of Macrocystis pyrifera. 2. The actual distribution and the extent of migration appear to be influenced by surge and light conditions in the kelp forest. 3. Aquarium studies indicate a negative response to light as well as showing increased activity of T. pulligo during periods just after dawn and dusk. These observations implicate changing light conditions as a cue for initiation of migration.