. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 20 40 60 MINUTES 80 100 120 FIGURE 3. Relationships between mean proximal pigment index of Palaemonetes and time in minutes. A, dark-adapted prawns illuminated and then returned to the darkroom; B, light- adapted prawns put in the darkroom and then returned to light. Circles, 5 minutes; dots, 15 minutes; half-filled circles, 45 minutes in light (A) or dark (B). The dashed lines connect the initial indexes of each group of prawns. and the eyestalks preserved. The remaining 15 pans were placed in the darkroom. After five minut
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 20 40 60 MINUTES 80 100 120 FIGURE 3. Relationships between mean proximal pigment index of Palaemonetes and time in minutes. A, dark-adapted prawns illuminated and then returned to the darkroom; B, light- adapted prawns put in the darkroom and then returned to light. Circles, 5 minutes; dots, 15 minutes; half-filled circles, 45 minutes in light (A) or dark (B). The dashed lines connect the initial indexes of each group of prawns. and the eyestalks preserved. The remaining 15 pans were placed in the darkroom. After five minutes in the dark, four of the pans were returned to an illumination of 250 ft. c., four more were returned after 15 minutes, and another four after 45 minutes. With the return to light of each group of four pans, the animals in a fifth pan were killed. The position of the pigment 10, 20, 40. and 60 minutes follow- ing the return of each group to light, was determined by fixing the eyestalks of the animals from one pan at the appropriate intervals. The experiment was repeated. The averaged data are presented in Figure 3B where the mean number of indexes represented by each point ranges from 14 to 20, the average being The rate of re-light-adaptation was a direct function of the time spent in darkness; the longer animals were kept in the dark (after having been previously light-adapted), the more rapid was the rate of 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
