. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. ORGANIC REGENERATION AND DECOMPOSITION 275 to a slightly higher level than in the original culture, hut up to the end of the observation no nitrate had been formed. The striking difference in temperature coefficients of nitrite forma- tion in Series 28 and 53 might indicate that different organisms were involved. It should be kept in mind that in nature nitrite is formed at all latitudes, in waters of different temperatures. An investigation of the temperature coefficients of nitrite formation in waters of different localiti
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. ORGANIC REGENERATION AND DECOMPOSITION 275 to a slightly higher level than in the original culture, hut up to the end of the observation no nitrate had been formed. The striking difference in temperature coefficients of nitrite forma- tion in Series 28 and 53 might indicate that different organisms were involved. It should be kept in mind that in nature nitrite is formed at all latitudes, in waters of different temperatures. An investigation of the temperature coefficients of nitrite formation in waters of different localities might yield interesting results. Sub-culture 53D was separated from No. 53 when nitrate formation in the latter was well under way. All the remaining nitrite was oxi- dized to nitrate in Series 53 in four days, whereas the process required nine days at the low temperature. During these periods the average daily nitrate formation was 26 micrograms per liter at the higher tem- perature and at the lower. The overall Qi0 for nitrate formation was therefore about , distinctly less than the coefficient for nitrite formation in the same series. NATURE OF PARTICULATE MATTER AND SOURCE OF WATER Previous studies have shown that the speed with which the nitrogen cycle proceeds is largely determined by the nature of the particulate 400 tr o 0200. NITRATE .. 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
