. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. MATERNAL INHIBITION OF HATCHING 100. 141 time (hrs.) Figure 2. Effect of fresh (â â â ) and conditioned medium (â¡ â â¡) on hatching of nauplii from mature egg-sacs carried by moth- ers isolated at density of 1/ml. Each experimental group consisted 48 females. Hatching percentage recorded as indicated, for a period to 48 hours. Dotted lines indicate time required for 50% of the females to hatch at each time (min) Figure 4. Hatching of nauplii from mature egg-sacs detached from the mother; 62 egg-sacs transferred.
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. MATERNAL INHIBITION OF HATCHING 100. 141 time (hrs.) Figure 2. Effect of fresh (â â â ) and conditioned medium (â¡ â â¡) on hatching of nauplii from mature egg-sacs carried by moth- ers isolated at density of 1/ml. Each experimental group consisted 48 females. Hatching percentage recorded as indicated, for a period to 48 hours. Dotted lines indicate time required for 50% of the females to hatch at each time (min) Figure 4. Hatching of nauplii from mature egg-sacs detached from the mother; 62 egg-sacs transferred. Each was placed in I ml condi- tioned medium. Dotted line indicates time for 50% of egg-sacs to hatch. hatching time was less than a half-hour with conditioned as well as fresh medium. Effect of detachment from mother on hatching Figure 4 depicts the cumulative hatching of detached egg-sacs. The median hatching time resembled that for egg-sacs of killed mothers, , half an hour, even though the detached egg-sacs had been transferred to condi- tioned media. Electron microscopy Microscopy revealed a physical link between mother and egg-sac. Figure 5, a scanning electron 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
