. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. i ; O O i — i i — I — i — L_I — L 12 16 20 24 4 TIME OF LOW TIDE 12 16 20 FIGURE 2. A. Time of activity peaks in relation to time of low tides for animals pre- treated with light 6 AM to 6 PM and recorded in constant illumination. B. Times of activity peaks for animals without pretreatment and recorded in natural illumination. the time the tides occur at 17 hours the peaks occur at almost the same time. It should be noted that these variations were not dependent on the length of time the animals had been in the laboratory or
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. i ; O O i — i i — I — i — L_I — L 12 16 20 24 4 TIME OF LOW TIDE 12 16 20 FIGURE 2. A. Time of activity peaks in relation to time of low tides for animals pre- treated with light 6 AM to 6 PM and recorded in constant illumination. B. Times of activity peaks for animals without pretreatment and recorded in natural illumination. the time the tides occur at 17 hours the peaks occur at almost the same time. It should be noted that these variations were not dependent on the length of time the animals had been in the laboratory or in the recorders. Figures 2A and B show comparable data for animals pretreated by exposure to 5 days of light on from 6 AM to 6 PM (2A) and for animals recorded under condi- tions of natural illumination (2B). In both cases the majority of points fall in the • 20 IS LJ 0. L_ 12 O U ' oo. 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
