(full paper is archived in the Miller Library)
Title: The effects of light and tide on movements of the limpet Acmaea scutum (Gastropoda: Prosobranchia)
Student Author(s): Rogers, Don A.
Faculty Advisor(s): Abbott, Donald
Location: Final Papers Biology 175H
Date: June 1966
Abstract: Acmaea scutum moves most when subject to the turbulence of the tidal wash during tidal ebb and flow, but continues to move when submerged at high water. A. scutum moves upward with the incoming was during tidal flow and downward with the outgoing wash during tidal ebb. The movements of A. scutum during periods of wash appear to be dependent on the light conditions; vertical and total movements are greater at night than during the day. In the laboratory A. scutum moves upward when submerged; the rate is slowest when animals are illuminated from above, higher under conditions of darkness, and still higher when the animals are illuminated from below.
Notes: Published 1968, Veliger 11(Suppl): 20-24