Table 2. Average and standard deviation (3 replicates) of the estimated organic carbon (C), and phosphorus (P) released after desiccation and rewetting, per surface filter per day (first two columns).
mgC m−2 (av±sd) | mgP m−2 (av±sd) | kg C (av±sd) | kg P (av±sd) | ||||||
2010 | 26Apr–21Jun | 156 | 24.1 | 4.92 | 0.86 | 112 | 17.3 | 3.54 | 0.62 |
24Jun–22Jul | 202 | 33.7 | 15.6 | 0.82 | 145 | 24.2 | 11.2 | 0.59 | |
27Jul–25Aug | 97.6 | 3.25 | 25.2 | 8.60 | 70.1 | 2.33 | 18.1 | 6.18 | |
25Aug–22Sep | 105 | 8.19 | 5.04 | 1.16 | 75.6 | 5.89 | 3.62 | 0.83 | |
2011 | 14Apr–11May | 48.9 | 7.09 | 1.51 | 0.23 | 35.1 | 5.09 | 1.09 | 0.16 |
12May–8Jun | 149 | 18.1 | 3.69 | 1.16 | 107 | 13.0 | 2.66 | 0.83 | |
9Jun–11Jul | 51.7 | 9.58 | 6.02 | 1.61 | 37.2 | 6.88 | 4.33 | 1.16 | |
13Jul–9Aug | 22.4 | 3.67 | 3.83 | 1.43 | 16.1 | 2.64 | 2.75 | 1.03 | |
9Aug–5Sep | 38.1 | 5.16 | 2.52 | 0.23 | 27.4 | 3.71 | 1.81 | 0.17 | |
5Sep–11Oct | 119 | 13.9 | 3.15 | 0.51 | 85.7 | 10.0 | 2.27 | 0.36 |
Kilos of C and P released from Lake Maggiore shoreline (170 km) after a level variation of 1 m, in one month, assuming a 45° shore slope and rugosity index of granite. The periods of the appearance of the D. lemmermannii bloom are in bold.