. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 12 FIGURE 6. The diurnal cycles of activity for the group of clams that was exposed to re- versed illumination (broken lines) and for its control (solid lines). The cycle for the experi- mental group appears to have been shifted one hour to the left or earlier when compared to that for the control group. A change in the temporal relationships of the curve for the experimental group ^ also evident in Figure 5. This shift can be seen best by comparing the high point ot I Jeccmber 6 on the control curve with a compara
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 12 FIGURE 6. The diurnal cycles of activity for the group of clams that was exposed to re- versed illumination (broken lines) and for its control (solid lines). The cycle for the experi- mental group appears to have been shifted one hour to the left or earlier when compared to that for the control group. A change in the temporal relationships of the curve for the experimental group ^ also evident in Figure 5. This shift can be seen best by comparing the high point ot I Jeccmber 6 on the control curve with a comparable high on December 10 on the experimental one. Low points also occurred four days apart, , on December 13 for the controls and on December 17 for the treated animals. Tin general form of the long-term cycle of the control group, as well as that of the experimental group, was seen to be similar to the general form of the long- term cycle- oi" activity that were found for the first four groups of quahogs (Figs. 1 and 2). It iv probable that the portion of the cycle from December 13 through. 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 Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
