Table 1.
Bacterial production and the loss of bacteria to viral and grazing-mediated mortality and their effects on carbon.
Date | Bacterial Production (×108 Cells l−1 Day−1) | VMM (×108 Cells l−1 Day−1) a,b | GMM (×108 Cells l−1 Day−1) a,b | VMM (% of Bacterial Standing Stock d−1) a,b | GMM (% of Bacterial Standing Stock d−1) a,b | VMM (% of Total Available Bacteria d−1) a,b | GMM (% of Total Available Bacteria d−1) a,b | Bacterial Production Virally Lysed or Grazed (% d−1) a,b | VMM (µg C l−1 d−1) c | GMM (µg C l−1 d−1) c |
---|---|---|---|---|---|---|---|---|---|---|
13 December 2010 | 7.0 | 0.6 | 3.9 | 7.7 | 46.9 | 4.2 | 25.4 | 64.6 | 0.8 | 4.8 |
20 December 2010 | 14.7 | 0.8 | 8.3 | 5.7 | 61.8 | 2.7 | 29.6 | 62.0 | 0.9 | 10.3 |
28 December 2010 | 7.1 | 1.7 | 31.5 | 13.7 | 2.1 | |||||
04 January 2011 | 5.5 | 3.3 | 38.7 | 23.7 | 4.1 | |||||
10 January 2011 | 5.4 | 1.6 | 5.8 | 20.1 | 74.2 | 11.9 | 44.1 | 138.1 | 2.0 | 7.2 |
14 January 2011 | 19.7 | |||||||||
24 January 2011 | 6.1 | 6.0 | 2.6 | 98.9 | 43.1 | 49.2 | 21.4 | 140.4 | 7.4 | 3.2 |
31 January 2011 | 10.4 | 0.9 | 1.4 | 21.0 | 34.3 | 6.0 | 9.8 | 22.2 | 1.1 | 1.8 |
07 February 2011 | 16.9 | 6.5 | 2.2 | 161.4 | 53.5 | 31.1 | 10.3 | 51.3 | 8.1 | 2.7 |
16 February 2011 | 7.2 | 5.7 | 1.9 | 74.7 | 25.5 | 38.2 | 13.1 | 105.1 | 7.0 | 2.4 |
21 February 2011 | 3.3 | 1.1 | 20.0 | 12.3 | 1.3 |
a Abbreviations: VMM, virus-mediated mortality; GMM, grazing-mediated mortality; SS, standing stock; and BP, bacterial production. b VMM, viral production/burst size of 41 according to Brum and Colleagues [32]; GMM, (specific grazing rate/net growth rate) × net bacterial production. VMM of bacterial standing stock = (VMM/SS) × 100. GMM of bacterial SS = (GMM/SS) × 100. VMM of total available bacteria = [VMM/(SS + BP)] × 100. GMM of total available bacteria = [GMM/(SS + BP)] × 100. Bacterial production virally lysed or grazed = [(VMM + GMM)/BP] × 100. c Bacterial carbon conversion factor of 12.4 fg C cell−1 reported by Fukuda and colleagues [28].