. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 220 GEORGE W. BARLOW high chronic Q10's observed in the cold-acclimated fish could be ascribed to the removal of cold depression. The three populations of G. mirabilis from California acclimated to 10° were tested at ° intervals from 10° to °. The program was the same as described in Material and Methods. Cold depression was not a factor in the temperature response of the cold- acclimated fish. As seen in Figure 6, the Q10's remained approximately the same between 10° and 24°. Prosser (1958) has presented a classifica
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 220 GEORGE W. BARLOW high chronic Q10's observed in the cold-acclimated fish could be ascribed to the removal of cold depression. The three populations of G. mirabilis from California acclimated to 10° were tested at ° intervals from 10° to °. The program was the same as described in Material and Methods. Cold depression was not a factor in the temperature response of the cold- acclimated fish. As seen in Figure 6, the Q10's remained approximately the same between 10° and 24°. Prosser (1958) has presented a classification of types of metabolic responses to temperature changes in relation to cold- and warm-acclimation. To provide such a comparison, data from a warm-acclimated (24°) group of G. mirabilis from San Francisco were included in Figure 6. This curve, however, has been improvised from two different experiments, and requires an explanation. The points representing rate of oxygen consumption at 24° and 31° were derived from the lines fitted to the results of the standard experiment (Fig. 3), and are reliable. The values for 17° and ° were obtained as follows. The fish in the res- pirometers were slowly (eight hours) cooled from 24° to 17°, held at 17° four hours, recorded two hours, then tested at ° intervals up to °, following the usual program. The values at 17° regularly fell near the projected 24°-31° line. Warming the water to ° and 24°, on the other hand, resulted in pronounced individual differences. These seemed to be of two types: (1) some of the fish manifested high Q10's, followed by a decrease in rate at a higher temperature, then an increase again at a still higher temperature, whereas (2) the others showed what could be called the anticipated regular increment. I have exercised my judgment and selected out those data that I believe to be reliable, , all the recordings from the San Francisco fish taken at 17° and °, but none i
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
