. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 350 J. F. WERMUTH AND C. D. BARNES 20 16 12 8. 20 40 60 80 k rod FIGURE 2. Average number of new hydranths added to colony starting material post- irradiation as a function of gamma-radiation dose. Open circles are 9° C colonies; closed circles are 18° C colonies. Vertical bars are one standard deviation above and below means. In Figure 2, data concerning the number of new hydranth positions added to starters relative to the amount of gamma radiation received is presented. In both cases there is a decreasing number of hydran
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 350 J. F. WERMUTH AND C. D. BARNES 20 16 12 8. 20 40 60 80 k rod FIGURE 2. Average number of new hydranths added to colony starting material post- irradiation as a function of gamma-radiation dose. Open circles are 9° C colonies; closed circles are 18° C colonies. Vertical bars are one standard deviation above and below means. In Figure 2, data concerning the number of new hydranth positions added to starters relative to the amount of gamma radiation received is presented. In both cases there is a decreasing number of hydranth positions produced with an increasing level of gamma radiation. The cause of the upward inflection of the 18° C-colony curve at 30 Krad is not known. In any event there is little to distinguish the average number of hydranths produced by starters which received IS Krad and those that received 30 Krad of gamma radiation. In 18° C colonies, 80 Krad essentially stops hydranth production. The point at 80 Krad represents one new hydranth position generated by eight colonies in the five day period after irradiation. Figure 3 presents data on the number of new uprights produced by new stolons after gamma radiation. There is a decrease in the number of new uprights pro- duced with increasing dose of gamma radiation over the entire range from 0 through 80 Krad for the 9° C colonies; and a decrease in the number of new uprights produced with increasing dose over the range from 0 to 30 Krad for the. 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 L
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
