. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. REPRODUCTIVE POTENTIAL IN A HYDRA CLONE 291 animal was reproducing at a low rate when, in fact the parent animal was in a state of depression and did not form a new hud for seven days. Because of these ap- parent discrepancies between the number of buds attached or detached on any one day and the number of new buds formed on the same day, the rate of new bud forma- tion was selected as the best criterion of an index for reproduction 10 DAYS FIGURE 3. Block graph showing the daily production of buds by the single paren
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. REPRODUCTIVE POTENTIAL IN A HYDRA CLONE 291 animal was reproducing at a low rate when, in fact the parent animal was in a state of depression and did not form a new hud for seven days. Because of these ap- parent discrepancies between the number of buds attached or detached on any one day and the number of new buds formed on the same day, the rate of new bud forma- tion was selected as the best criterion of an index for reproduction 10 DAYS FIGURE 3. Block graph showing the daily production of buds by the single parent hydra and 18 specimens of the second and third generation. The symbol [ . indicates that the strain was terminated intentionally or was lost accidentally. The symbol LH indicates that the specimen died during a depression. The rate of new buds produced per day by the original member of clone 5 and of 183 bud descendants representing samples from 18 generations has been plotted and 52 typical samples are shown in Figures 3, 4 and 5. Records followed by the symbol G are those which were intentionally terminated or were lost by accident. The 5 records followed by hollow rectangles indicate lines which died during physio-. 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
