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Science 28 October 1966:
Vol. 154. no. 3748, pp. 532 - 533
DOI: 10.1126/science.154.3748.532
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Articles

Long-Term Activity Recording in Small Aquatic Animals

A. A. Heusher 1 and J. T. Enright 2

1 Center for Health Sciences, University of California, Los Angeles;Istitut de Physiologie, Faculté de Médecine, Strasbourg, France.
2 Department of Zoology, University of California, Los Angeles;Department of Oceanography, Scripps Institution of Oceanography, University of California, La Jolla.

We have built an activity-recording device based on the principle of detecting slight changes in the heat conductance of an aquatic environment by means of a thermistor. A major advantage of the device is that it can be used with a simple event recorder, thus combining high sensitivity with low cost. The equipment has been tested with automatic mechanical stimulation, and has been used for long-term recording of the swimming of small marine crustaceans. Problems of stability and reliability have been solved, and potential applications of the device seem widespread.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Is There an Endogenous Tidal Foraging Rhythm in Marine Iguanas?.
M. Wikelski and M. Hau (1995)
J Biol Rhythms 10, 335-350
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Science. ISSN 0036-8075 (print), 1095-9203 (online)