Brainstem Temperature Affects Gill Ventilation in the California Scorpionfish

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Science  10 Aug 1973:
Vol. 181, Issue 4099, pp. 579-581
DOI: 10.1126/science.181.4099.579


California scorpionfish, Scorpaena guttata, were implanted with a pair of thermodes which straddled the anterior brainstem. When the fish were in water of about 20°C, warming the thermodes to temperatures above 20°C caused a proportional increase in the ventilatory minute volume. Cooling the thermodes below 20°C caused a proportional decrease in the ventilatory minute volume. It is concluded that the anterior brainstem temperature provides an important input to the respiratory control center in teleost fish.