. Behavior monographs. Animal behavior. 58 CORA D. REEVES tropis cornutMs), 7-10 cm. in length. The apparatus was in a room illuminated by daylight. Counts of respiration rate in diffused daylight gave about 60 per minute. The respiration rate of a quiescent fish was then taken while the artificial light in the box was shining upon it, and gave 85 per minute. A ruby glass was then placed in front of the carbon lamp. The effect of this was to change the quality of the light to which the fish was exposed but to lessen its intensity. The respira- tion rate in this less intense illumination by red
. Behavior monographs. Animal behavior. 58 CORA D. REEVES tropis cornutMs), 7-10 cm. in length. The apparatus was in a room illuminated by daylight. Counts of respiration rate in diffused daylight gave about 60 per minute. The respiration rate of a quiescent fish was then taken while the artificial light in the box was shining upon it, and gave 85 per minute. A ruby glass was then placed in front of the carbon lamp. The effect of this was to change the quality of the light to which the fish was exposed but to lessen its intensity. The respira- tion rate in this less intense illumination by red light was found to be increased to 150. b. Other characteristic behavior of fish in the presence of stimulus patches of unfamiliar light of long wave-length. (1) Sunfish. In describing the red-blue training ex- periments I have already referred to the peculiar avoidance of red shown by sunfish unaccustomed to it. During the first weeks of the experiments in which the blue and red. Fig. 17 Path of Large Sunfish in the experiment aquarium to show the effect of red light on its movements. The red illuminated region is bounded above by the straight broken line. For explanation see Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Baltimore [etc. ], William & Wilkins Co. [etc. ]
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