. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FIG. 2. Series No. 23 (above) and 23A (below). The disappearance of par- ticulate nitrogen and the simultaneous changes in ammonia, nitrite and nitrate, plotted against time. Source of organic matter, fresh culture of Nitzschia Closterium suspended in sea water from the Sargasso Sea. The shaded area represents a re- generation period, with the culture in the light; the remainder, decomposition in the DAYS 25 50 Series No. 24 25 50 Series No. 25 25 50 Series No. 26 FIG. 3 The disappearance of particulate nitrogen (P) a
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. FIG. 2. Series No. 23 (above) and 23A (below). The disappearance of par- ticulate nitrogen and the simultaneous changes in ammonia, nitrite and nitrate, plotted against time. Source of organic matter, fresh culture of Nitzschia Closterium suspended in sea water from the Sargasso Sea. The shaded area represents a re- generation period, with the culture in the light; the remainder, decomposition in the DAYS 25 50 Series No. 24 25 50 Series No. 25 25 50 Series No. 26 FIG. 3 The disappearance of particulate nitrogen (P) and the simultaneous changes in ammonia and nitrite in cultures of Nitzschia Closterium in sea water from Woods Hole harbor. The three cultures were identical at the start. Series No. 24 stood quietly in the dark. Through No. 25 a continuous stream of purified air was bubbled. The air was completely removed from Series No. 26 and a continuous stream of purified hydrogen bubbled through it. Ammonia During the first decomposition cycle, in all cases, ammonia ap- peared in the water rapidly and in such amounts as to exclude the possibility of soluble nitrogen compounds intermediate between particulate nitrogen and ammonia. This but confirms our previous findings. But in the second cycle, although the particulate nitrogen disappeared at about the same rate, ammonia was not formed as. 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
Size: 3750px × 666px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
