. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 24S DOROTHY H. PATENT (Boolootian, 1966). Chia (1964, 1968) has shown that in Leptasterias there is a resting period of several months after the largest oocytes have reached their ter- minal size. During this time there is very slow growth of the small oocytes. In Gorgonocephalus, there is a resting period in the females from January through March. During this time, the average diameter of the largest oocytes remains Maturity Index 5 4 3 2 Size of largest oocytes 160 145 130 115 100 85 70 55 — $ — a* M.
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 24S DOROTHY H. PATENT (Boolootian, 1966). Chia (1964, 1968) has shown that in Leptasterias there is a resting period of several months after the largest oocytes have reached their ter- minal size. During this time there is very slow growth of the small oocytes. In Gorgonocephalus, there is a resting period in the females from January through March. During this time, the average diameter of the largest oocytes remains Maturity Index 5 4 3 2 Size of largest oocytes 160 145 130 115 100 85 70 55 — $ — a* o Size of largest oocytes A 0 N D J F M A Month of collection M J A FIGURE 3. Graph showing the Maturity Index (left scale) and the size of the largest oocytes (right scale) for the animals sampled in this study. The first month of collection was August, 1965; the last month was August, 1966. All collections were made in Boundary Pass in the San Juan Islands. relatively constant, and the ovaries of animals collected in January show no striking differences from those collected in March. However, it is possible that more oocytes are growing and reaching the maximum size for this stage (under 121 /*). The resting period occurs after the oocytes have undergone considerable growth (from a maximum diameter of 78 ^ in December to a maximum of 104 p. in Jan-. 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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