(full paper is archived in the Miller Library)
Title: Intertidal orientation and movement of the gastropod Olivella biplicata
Student Author(s): Hedden, Laurie, S.
Faculty Advisor(s): Phillips, David W.
Location: Final Papers Biology 175H
Date: June 1972
Keywords: sandy beaches
Abstract: The intertidal sandy beach gastropod Olivella biplicata exhibits downslope (seaward) directional orientation as the tide ebbs toward lower low water and upslope orientation as the tide rises. Some seaward and landward movement of beach populations also occurs. These orientation changes occur whether low tides come during the day or the night.