Hopkins Marine Station Student Paper

Browse Titles | Search Citations & Abstracts

(full paper is archived in the Miller Library)

Title: The activity and food of the file limpet, Acmaea limatula (Mollusca: Gastropoda: Prosobranchia)
Student Author(s): Eaton, Charles McKendree
Faculty Advisor(s): Abbott, Donald
%E Abbott, Isabella
Pages: 23
Location: Final Papers Biology 175H
Date: June 1966
Keywords: limpet
Acmaea
Abstract: Acmaea limatula moves only when splashed or submerged, whether this period comes during the day or night. Movement commences shortly after wetting, rises to a high level as the tide comes in, drops during periods of high tide, and increases again as the tide recedes. At night rising tides produce upward movement, but during the day the animals move downward on both rising and falling tides, particularly during the latter. Some homing occurs, particularly on horizontal surfaces. Acmaea limatula spends most of its time on the red encrusting algae Hildenbrandia and Peyssonelia when these are available. The main foods of the limpet are micrscopic algae and the encrusting red and coraline algae Hildenbrandia, and Peyssonelia Lithothamnion and Lithophyllum. Non-encrusting forms are not eaten unless they are short, growing close to the rock surface. Dietary studies suggest that in habitats where both A. limatula and A. pelta occur, there is little competition for food.
Notes: Published 1968, Veliger 11(Suppl): 5-12