(full paper is archived in the Miller Library)
Title: Diurnal and tidal rhythms in the oxygen consumption of the gastropod Tegula funebralis
Student Author(s): Snyder, Janna M.
Location: Final Papers Biology 175H
Date: June 1963
Keywords: black turban snail
Abstract: The animals tested were allowed to respire in sealed flasks and water samples were withdrawn every two hours and examined for oxygen content by the Winkler method. Snails from China Point (Monterey Peninsula, California) have a lowered oxygen consumption at sunset and high high tide, and an increased oxygen consumption at sunrise and low low tide. The snails may build up an oxygen debt during high high tide which is repaid during exposure to air at low low tide. Lactic acid content of snails at high high tide was about twice as great as that of snails at low low tide.