Feeding rate and duration of daily activity of Astropecten aranciacus (Echinodermata: Asteroidea) in relation to prey density |
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| Authors: | G Ribi P Jost |
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| Institution: | (1) Zoological Museum, University of Zürich, Zürich, Switzerland |
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| Abstract: | In a feeding experiment, 16 individuals of Astropecten aranciacus were kept in two enclosures on the sea floor, and were provided with a surplus of food. Feeding at a daily rate of 1.3% of their dry tissue weight, their food intake was four times higher than that of free-living sea stars. The periods of daily activity were shorter than in control individuals kept in enclosures without additional food. |
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