Influence of Currents on Form of Sponges

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Science  08 Jul 1960:
Vol. 132, Issue 3419, pp. 89
DOI: 10.1126/science.132.3419.89


Small reconstituted Microciona prolifera produced central oscular chimneys, perpendicular to the surface of attachment, in standing water; in a slow, steady current, the oscular chimneys were eccentrically placed and directed obliquely downstream. Gravity and directional illumination did not affect the orientation of the chimney.