Hopkins Marine Station Student Paper

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(full paper is archived in the Miller Library)

Title: Non-macrophagous feeding mechanisms of the Patiria miniata
Student Author(s): Heidel, Bonnie
Faculty Advisor(s): Wagenbach, Gary
Pages: 24
Location: Research Reports Carleton College Biology 212
Date: March 1976
Abstract: 1. Feeding behavior analysis of Patiria miniata showed significant correlation between a "mouth closed" position and a flat body position with arms arched aborally, indicating hunger in the starfish.
2. The second significant correlation, between the "mouth closed" position and completely flat body position, indicates an inactivity period in the suspension feeding situation.
3. The greater degree of stomach eversion with time is a closed system tank corresponds to some degree with the addition of the mucous feeding mechanism to the ciliary suspension feeding that occurs on cardiac stomach walls.
4. Absorption, more difficult to correlate with behavior, probably occurs through active transport, but phagocytic coelomocytes may also play a role.