Table A2b.
Comparison of protease activity in relative fluorescence units
| ANOVA | Post hoc test | |||||
|---|---|---|---|---|---|---|
| Size | Mean | Std Dev | t | p | ||
| Filtrates of day 0 (df = 7; F = 2.967; p = 0.141) | ‐ | |||||
| S. costatum | 3 | 539 | 483.9 | |||
| S. costatum +K. algicida | 3 | 1,134 | 640.4 | |||
| K. algicida in sea water | 2 | 2,142 | 1,145.5 | |||
| Filtrates of day 5 (df = 8; F = 70.613; p < 0.001) | Holm‐Sidak (all pairwise) α 0.05 | |||||
| S. costatum | 3 | 851 | 738.5 | S. costatum versus S. costatum +K. algicida | 11.5 | <0.001*** |
| S. costatum +K. algicida | 3 | 12,057 | 1897.6 | S. costatum +K. algicida versus K. algicida in sea water | 8.334 | <0.001*** |
| K. algicida in sea water | 3 | 3,939 | 352.5 | S. costatum versus K. algicida in sea water | 3.170 | 0.019* |
| Filtrates of day 10 (df = 8; F = 36.111; p < 0.001) | Holm‐Sidak (all pairwise) α 0.05 | |||||
| S. costatum | 3 | 1,064 | 1,226.6 | S. costatum versus S. costatum +K. algicida | 8.473 | <0.001*** |
| S. costatum +K. algicida | 3 | 7,188 | 636.6 | S. costatum +K. algicida versus K. algicida in sea water | 4.810 | 0.006** |
| K. algicida in sea water | 3 | 3,712 | 664.4 | S. costatum versus K. algicida in sea water | 3.663 | 0.011* |
Averaged blank values for protease activity of sea water were subtracted before one way analysis of variance (ANOVA) was carried out. Background subtraction resulted in one negative value (S. costatum with day 5 filtrates) which was set to zero.
Level of significances:
*
p < 0.05,
**
p < 0.01,
***
p < 0.0001.