Hopkins Marine Station Student Paper

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(full paper is archived in the Miller Library)

Title: The activity pattern and food habits of the limpet Acmaea pelta (Mollusca: Gastropoda: Prosobranchia)
Student Author(s): Craig, Peter C.
Faculty Advisor(s): Abbott, Donald
%E Abbott, Isabella
Pages: 27
Location: Final Papers Biology 175H
Date: June 1966
Keywords: limpet
Acmaea
Abstract: Most movement and feeding occurs when individuals are submerged at high tide or splashed at receding tides. At night populations show a net displacement upward on vertical rocks when the tide rises and a net displacement downward as the tide recedes. Feeding is not continuous during periods of submersion and splash, and individuals do not feed every high tide. A. pelta ingests a variety of blue-green, green, red, and brown algae, both macroscopic and microscopic and diatoms. The most common macroscopic algae eaten are: Rhodoglossum affine, Endocladia muricata, Iridaea sp., Pelvetia fastigiata, and Egregia menziesii. In habitats where A. pelta occurs with A. limatula, the former eats mainly larger, erect algae, the latter mainly encrusting and microscopic algae.
Notes: Published 1968, Veliger 11(Suppl): 13-19