. Atoll research bulletin. Coral reefs and islands; Marine biology; Marine sciences. 12 7 1 rates rivaled (20 to 200 umol N m" h"), and in some cases exceeded, rates of N2 fixation (Fig. 6). Denitrification rates were generally higher in dark-incubated treatments during daytime incubations. Daytime-dark rates and nighttime rates in +NG treatments were not significantly different. 40 30 20 10 â¡ Light â¡ L+NG â¡ Dark+NG â¡ Niignt+NG â Dark â¡ DCMU â Night § = n0 D+NG data i â¡ rH jSl 'Jt*i i JU LI* D L Sampling Site. wp sec Sampling Site Figure 5. Day-night variability in N2 fixation
. Atoll research bulletin. Coral reefs and islands; Marine biology; Marine sciences. 12 7 1 rates rivaled (20 to 200 umol N m" h"), and in some cases exceeded, rates of N2 fixation (Fig. 6). Denitrification rates were generally higher in dark-incubated treatments during daytime incubations. Daytime-dark rates and nighttime rates in +NG treatments were not significantly different. 40 30 20 10 â¡ Light â¡ L+NG â¡ Dark+NG â¡ Niignt+NG â Dark â¡ DCMU â Night § = n0 D+NG data i â¡ rH jSl 'Jt*i i JU LI* D L Sampling Site. wp sec Sampling Site Figure 5. Day-night variability in N2 fixation in microbial mats (A: 6/01, B: 3/02). Columns represent mean of n=3 samples; error bars=standard deviation of the mean. Maximum values and standard deviation for split columns are noted at the top of each 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 Smithsonian Institution. Press; National Research Council (U. S. ). Pacific Science Board; Smithsonian Institution; National Museum of Natural History (U. S. ); United States. Bureau of Sport Fisheries and Wildlife. Washington, D. C. : [Smithsonian Press]
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