. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 284 JAMES R. COOK < z o E grocilis DNA increase during the light period. 24 1 5 Z 15 E" Time (Mrs Since Light On) 22 FIGURE 5. DNA content of the average Euglcna during the light period. Euglena constitute one to two per cent of the total dry weight (Cook, 1960), and this, too, goes through a slight maximum in the light period. Table I lists the concentrations of chlorophyll b calculated for different ages. While there is considerable error involved in estimates of this pigment by the method used here, the expected t
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 284 JAMES R. COOK < z o E grocilis DNA increase during the light period. 24 1 5 Z 15 E" Time (Mrs Since Light On) 22 FIGURE 5. DNA content of the average Euglcna during the light period. Euglena constitute one to two per cent of the total dry weight (Cook, 1960), and this, too, goes through a slight maximum in the light period. Table I lists the concentrations of chlorophyll b calculated for different ages. While there is considerable error involved in estimates of this pigment by the method used here, the expected two-fold difference in chlorophyll b levels should at least E. grocilis Chlorophyll a. increose during the light period. 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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