. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. OVARIAN REPRODUCTIVE CYCLE OF ASTERIAS 339 100 90 _ 80 _ vu _ 60 _ 50 _ 40 _ 30 _ 20 _ la N = = 1b N,1400 Q = 1 N= =. 463pm 525 538 900. Q= 738>jm 700. Q = 10 38 925 2a N 2b N 2 N=1400,Q 3a N= jum 3b N = 1400 Q=1738 3 N =2500. Q =17 38 4a N = 15 38pm 4b N = 1000,Q=1088 4 N = =13 50 la Ib 2a 2b 3a 1 2 3 I 10 I 20 I 30 I 40 I 50 I 60 I 70 I 80 r 90 \ 100 110 i 120 I 130 140 150 FIGURE 4. Cumulative quantiles of oocyte diameters for the stages and substages of the annual reproductive cyc
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. OVARIAN REPRODUCTIVE CYCLE OF ASTERIAS 339 100 90 _ 80 _ vu _ 60 _ 50 _ 40 _ 30 _ 20 _ la N = = 1b N,1400 Q = 1 N= =. 463pm 525 538 900. Q= 738>jm 700. Q = 10 38 925 2a N 2b N 2 N=1400,Q 3a N= jum 3b N = 1400 Q=1738 3 N =2500. Q =17 38 4a N = 15 38pm 4b N = 1000,Q=1088 4 N = =13 50 la Ib 2a 2b 3a 1 2 3 I 10 I 20 I 30 I 40 I 50 I 60 I 70 I 80 r 90 \ 100 110 i 120 I 130 140 150 FIGURE 4. Cumulative quantiles of oocyte diameters for the stages and substages of the annual reproductive cycle of Asterias rubens. O O: Cumulative quantiles of oocyte diameters from animals belonging to a substage, mutually not significantly different (x2 < ). • - - •: Cumulative quantiles of oocyte diameters from animals belonging to two subsequent substages, and in the same stage of the annual reproductive cycle. Q: Semi-interquartile range. distinguishes stage 1 from stage 2 (P < ), and stage 2 from stages 3 and 4 (P < ). The absence of the hemal fluid in stage 1 distinguishes this stage from the others (P < ). Finally, the desintegration of follicle cells and the presence of "loose" oocytes indicates a difference between stage 4 and the other stages (P < , P < , respectively). For the four stages, obtained in this manner, the frequency distributions of oocyte diameters before and after McCall (1949) transformation are given in Figures 2 and 3, respectively. Essential data of these frequency distributions are summarized in Table I. Differences between these distributions are significant (P < ). For each stage and each substage the cumulative quantile of the oocyte diameters has been plotted (Fig. 4). Determining the proportional distribution of the stages per sample produces the frequency distributions of the stages of the reproductive cycle, presented in Figure 5. Some of the frequency distributions are slight
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
