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Science 4 July 1969:
Vol. 165. no. 3888, pp. 83 - 85
DOI: 10.1126/science.165.3888.83
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Articles

Forebrain Temperature Activates Behavioral Thermoregulatory Response in Arctic Sculpins

H. T. Hammel 1, S. B. Strømme 1, and K. Myhre 1

1 Physiological Research Laboratory, Scripps Institution of Oceanography, University of California, San Diego, La Jolla 92037

Arctic sculpins of the genus Myoxocephalus adapted to water at 5°C escaped from warm water at 20°, 16°, and 12°C when their deep-body temperatures increased from an initial 5°C to about 8°C. Heating parts of the forebrain with water at 25°C circulating through a pair of thermodes astraddle rostral parts of the forebrain shortened the time spent in the warm water and lessened the incease in deep-body temperature before exit from the warm water. Cooling the forebrain to about -1°C caused a large increase in the body temperature and sometimes suppressed the escape from the warm water.


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