. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 226 HOLLAND, GRIMMER AND KUBOTA E D "o > 0) 500- 200- 100- 50- 20- 10 5 2 1 - x u o o ^ 0-05- age of first - produced oocyte (in days) 80 120 160 200 240 280 40 l 120 i 320 360. N D M M J J 0 40 80 120 160 200 240 age of la s t — produced oocyte (in days) FIGURE 3. Instantaneous relative growth rates (k) of post-pachytene oocytes of C. japonica. The growth curve at the left is for the largest (and presumably the first-produced) oocyte, and the growth curve at the right is for the smallest (and pres
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 226 HOLLAND, GRIMMER AND KUBOTA E D "o > 0) 500- 200- 100- 50- 20- 10 5 2 1 - x u o o ^ 0-05- age of first - produced oocyte (in days) 80 120 160 200 240 280 40 l 120 i 320 360. N D M M J J 0 40 80 120 160 200 240 age of la s t — produced oocyte (in days) FIGURE 3. Instantaneous relative growth rates (k) of post-pachytene oocytes of C. japonica. The growth curve at the left is for the largest (and presumably the first-produced) oocyte, and the growth curve at the right is for the smallest (and presumably last-produced) oocyte. The triangular data point on eacli curve is the presumed volume on the birth date of the oocyte. The thickened segment of each horizontal axis indicates the presence of oogonia and spireme oocytes. oocyte are as follows: between 15 February and 1 March; between 1 Marcb and 7 May; and between 7 May and 2 October. The two curves of Figure 3 are not congruent. The last-produced oocyte, in comparison to the first-produced, has a slower early growth but a faster late growth. The reasons for these differences are not known. The tendency of the last-produced oocytes to catch up with the first-produced one during later growth is not great enough to prevent the wide range in oocyte diameters observed on the day of spawning. If one could plot growth curves for oocytes produced be-. 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
