. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. Sr"° AND Ca43 METABOLISM BY LEBISTES 447 mulate about 25 per cent less strontium-90 than calcium-45. These differences in tissue uptake of the two nuclides are statistically significant and further accentuate subtle differences in the metabolism of these two elements. Since the relationship of the weight of organs to body weight has not, to my knowledge, been previously determined or published, for Lebistcs, the relative pro- portions of the various tissues analyzed in this study are shown in Table IV. 150 LJ O o: LU Q_
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. Sr"° AND Ca43 METABOLISM BY LEBISTES 447 mulate about 25 per cent less strontium-90 than calcium-45. These differences in tissue uptake of the two nuclides are statistically significant and further accentuate subtle differences in the metabolism of these two elements. Since the relationship of the weight of organs to body weight has not, to my knowledge, been previously determined or published, for Lebistcs, the relative pro- portions of the various tissues analyzed in this study are shown in Table IV. 150 LJ O o: LU Q_ O o: CO o: LJ o o: ID r-. DAYS FIGURE 3. Turnover of strontium-90 by various tissues of male Lebistes versus days in water containing no isotope. Each point represents 4 to 11 values obtained from 3 experiments. ©, spine: O, body: •. muscle: CD, head: ©, viscera. The fish contained about 104 cpm/100 mg. on day zero of turnover. The rate of turnover of strontium-90 by the body and tissues of Lebistcs was determined by first placing the animals in isotope-containing water for 10 days in order to incorporate sufficient radioactivity into the tissues. After this period the fishes were transferred to isotope-free water which was changed periodically and they were sacrificed at suitable intervals previously described in detail (Rosenthal,. 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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