(full paper is archived in the Miller Library)
Title: Chemoethology in the nudibranch mollusc, Melibe leonina
Student Author(s): Gelber, Shari Ellen
Faculty Advisor(s): Thompson, Stuart
Location: Final Papers Biology 175H
Date: June 1991
Abstract: Chemical cues from macrocystis and mysid are capable of triggering behaviors in the nudibranch mollusc, Melibe leonina. The behaviors ellicited are appropriate to the stimulus. (i.e. Melibe locomote in response to macrocystis, and exhibit feeding behavior in response to mysid.) These behaviors are not seen when the animals are in an isolated environment or are stimulated solely by touch or vision. Furthermore, Melibe exhibit the ability to integrate chemical cues. While neither brine shrimp nor kelp alone will inspire them to feed, brine shrimp combined with the smell of kelp provides the threshold stimulus necessary to begin feeding. Rhinophore ablation indicates that the rhinophores are the chemoreceptive organs responsible for the detection of these cues.