. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. RHYTHMS ix OS-CONSUMPTION 245 day n with the values for i'cu [>iti/iliitor for day ;/ + 1. An analysis of _"' days of data (June 19 through July IS) for Mich data dislocated by one day showed there to he no correlation ( ± ). A low degree of correlation was seen when the values for day n were correlated with the values for the day n + 1 for a period of a month for the same species. This last, for Ccti pntjtiax, provided a co- efficient of correlation of ± and indicated a small tendency of the c
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. RHYTHMS ix OS-CONSUMPTION 245 day n with the values for i'cu [>iti/iliitor for day ;/ + 1. An analysis of _"' days of data (June 19 through July IS) for Mich data dislocated by one day showed there to he no correlation ( ± ). A low degree of correlation was seen when the values for day n were correlated with the values for the day n + 1 for a period of a month for the same species. This last, for Ccti pntjtiax, provided a co- efficient of correlation of ± and indicated a small tendency of the crahs to repeat on the next day the pattern exhihited on any given day. On the other hand, when one attempted to correlate the hourly data for Uca and pitgilator for one synodic month with the same species for the same hours of the days of the succeeding month, there was found for f>n( a value of ± and for f>mjilator, ± There is a .suggestion of a cor- relation, even though a small one, in the hourly values of O2-consumption for through days possessing comparable lunar relations. A similar suggestion was absent for puyilator. In earlier work with fiddler crab rhythms of color change (Brown, Fingerman. Sandeen and Webb, 1953) and in respiration (Brown, Bennett and \Yebb, 1954) it was possible to resolve the variations into a complex of rhythms of different frequencies. These included ones of daily, primary lunar, semi-monthly and pos- sibly monthly cycles. In order to determine if similar rhythms were present in these organisms using the more extensive and more critically corrected data, the data were first analyzed in such a manner that any existing daily cycle would be made evident. Since in a synodic monthly period every phase of a primary lunar. 6AM 6 PM FIGURE 4. A. The mean daily variation in oxygen consumption for 'I'ritnrus for 1 ) a 15- day period centered on full moon, 2) a 15-day period centered on new moon, and
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
