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Published September 24, 1965 | public
Journal Article

Schlieren Technique for Studying Water Flow in Marine Animals


A Schlieren optical technique has been developed for studying the flow of water through certain mollusks and brachiopods in sea-water environments. Optical contrast is accomplished by changing either the temperature or salinity of the water. A temperature difference of 0.1°C or a change in salinity of 0.5 per thousand over a path 1 mm long is visible. The technique may be applied in situ in the ocean or through windows in aquaria.

Additional Information

© 1965 American Association for the Advancement of Science. 21 July 1965. Contribution 1355, Division of the Geological Sciences, California Institute of Technology.

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October 25, 2023