. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. TIME (TWENTY-MINUTE INTERVALS) FIGURE 9. Bathygram showing morning descent of scattering layer onto bottom at 200 to 250 fathoms. Atlantis cruise 154, 7 Apr., 1949; 25°51'N., 79°41i/2'W. 15 *^_ ^^^— £L ^ L — — so- T • • • ^m y 40 J -*• 40- 80- 120-. 4 7 10 13 16 ttttt, 13 14 JULY 10 15 18 SUNSET 19 20 21 SUNRISE 4 5 8 11 20- 40- 60 FIGURE 10. Vertical distribution of plankton animals. (From Russell, 1931.) 1. Hypothetical vertical distributions at different times in the twenty-four hours to illustrate the behaviour of a popu
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. TIME (TWENTY-MINUTE INTERVALS) FIGURE 9. Bathygram showing morning descent of scattering layer onto bottom at 200 to 250 fathoms. Atlantis cruise 154, 7 Apr., 1949; 25°51'N., 79°41i/2'W. 15 *^_ ^^^— £L ^ L — — so- T • • • ^m y 40 J -*• 40- 80- 120-. 4 7 10 13 16 ttttt, 13 14 JULY 10 15 18 SUNSET 19 20 21 SUNRISE 4 5 8 11 20- 40- 60 FIGURE 10. Vertical distribution of plankton animals. (From Russell, 1931.) 1. Hypothetical vertical distributions at different times in the twenty-four hours to illustrate the behaviour of a population of a species such as Calanus finmarchicus in its diurnal movements (after Russell, 1927, p. 237, Fig. 4). 2. Diagram showing vertical distribution of female Calanus finmarchicus at 3-hourly intervals during 24 hours on January 25th-2oth. 1932; sunset : sunrise (after Nicholls, 1933, p. 150, Fig. 4). 3. Diurnal migration of adult females of Mctridia Inccns in the Gulf of Maine, July, 1932. The changes in light intensity are indicated by the lines representing the depth at which 1000, 100 microwatts etc. occurred (one microwatt may be taken as approximately equal to three metre-candles). The temperature curve at the right shows that migration right to the sur- face at night was prevented by the thermocline (after Clarke, 1933, p. 426, Fig. 5).. 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
