TABLE A6.
Results of the SIMPER analysing the effects of the HWs on phytoplankton taxa biomass over the course of the experiment.
| Taxonomic groups | Average | sd | Ratio | ava | avb | cumsum | p |
|---|---|---|---|---|---|---|---|
| Day −4 | |||||||
| Charophyta | 0.206 | 0.171 | 1.207 | 293.749 | 99.457 | 0.371 | 0.401 |
| Dinophyta | 0.133 | 0.131 | 1.013 | 228.716 | 42.859 | 0.611 | 0.083 |
| Cryptophyta | 0.133 | 0.104 | 1.273 | 215.925 | 206.102 | 0.850 | 0.319 |
| Bacillariophyta | 0.072 | 0.036 | 2.011 | 109.057 | 35.663 | 0.980 | 0.177 |
| Chlorophyta | 0.007 | 0.006 | 1.157 | 14.110 | 2.809 | 0.992 | 0.728 |
| Euglenophyta | 0.003 | 0.004 | 0.695 | 6.179 | 0.373 | 0.997 | 0.428 |
| Cyanobacteria | 0.002 | 0.002 | 0.768 | 0.559 | 1.160 | 1.000 | 0.875 |
| Synurophyta | 0.000 | 0.000 | 0.000 | 0.000 | 1.000 | 0.001 | |
| Day 3 | |||||||
| Cryptophyta | 0.513 | 0.289 | 1.779 | 75.579 | 230.067 | 0.741 | 0.051 |
| Dinophyta | 0.076 | 0.091 | 0.834 | 8.011 | 21.363 | 0.850 | 0.332 |
| Chlorophyta | 0.047 | 0.081 | 0.584 | 16.870 | 1.239 | 0.919 | 0.908 |
| Charophyta | 0.042 | 0.062 | 0.682 | 0.342 | 17.338 | 0.980 | 0.037 |
| Cyanobacteria | 0.007 | 0.010 | 0.642 | 0.000 | 1.684 | 0.990 | 0.001 |
| Euglenophyta | 0.005 | 0.006 | 0.766 | 1.439 | 0.804 | 0.997 | 0.944 |
| Bacillariophyta | 0.002 | 0.003 | 0.705 | 0.186 | 0.747 | 1.000 | 0.370 |
| Synurophyta | 0.000 | 0.000 | 0.000 | 0.000 | 1.000 | 0.001 | |
| Day 10 | |||||||
| Charophyta | 0.272 | 0.237 | 1.147 | 32.657 | 135.963 | 0.407 | 0.031 |
| Dinophyta | 0.148 | 0.121 | 1.224 | 9.747 | 65.023 | 0.628 | 0.053 |
| Cryptophyta | 0.146 | 0.108 | 1.347 | 13.064 | 45.836 | 0.846 | 0.001 |
| Bacillariophyta | 0.072 | 0.078 | 0.926 | 5.035 | 34.741 | 0.954 | 0.001 |
| Chlorophyta | 0.023 | 0.025 | 0.911 | 3.339 | 11.008 | 0.988 | 0.184 |
| Cyanobacteria | 0.005 | 0.007 | 0.803 | 0.550 | 2.366 | 0.996 | 0.946 |
| Euglenophyta | 0.003 | 0.004 | 0.713 | 1.014 | 0.765 | 1.000 | 0.975 |
| Synurophyta | 0.000 | 0.000 | 0.000 | 0.000 | 1.000 | 0.001 | |
| Day 15 | |||||||
| Cryptophyta | 0.430 | 0.249 | 1.729 | 68.053 | 307.782 | 0.687 | 0.120 |
| Charophyta | 0.091 | 0.089 | 1.021 | 46.209 | 26.590 | 0.832 | 0.949 |
| Dinophyta | 0.063 | 0.077 | 0.808 | 10.681 | 29.374 | 0.932 | 0.062 |
| Chlorophyta | 0.030 | 0.024 | 1.232 | 8.345 | 15.295 | 0.980 | 0.403 |
| Bacillariophyta | 0.009 | 0.008 | 1.069 | 0.773 | 4.510 | 0.993 | 0.113 |
| Euglenophyta | 0.003 | 0.004 | 0.626 | 1.057 | 0.000 | 0.998 | 0.893 |
| Cyanobacteria | 0.001 | 0.001 | 2.037 | 0.002 | 0.639 | 1.000 | 0.001 |
| Synurophyta | 0.000 | 0.000 | 0.000 | 0.000 | 1.000 | 0.001 | |
| Day 24 | |||||||
| Chlorophyta | 0.232 | 0.325 | 0.713 | 456.690 | 21.977 | 0.393 | 0.866 |
| Cryptophyta | 0.152 | 0.151 | 1.008 | 80.832 | 125.624 | 0.652 | 0.740 |
| Charophyta | 0.106 | 0.161 | 0.654 | 29.724 | 53.875 | 0.831 | 0.543 |
| Dinophyta | 0.049 | 0.050 | 0.990 | 6.142 | 23.099 | 0.915 | 0.078 |
| Euglenophyta | 0.029 | 0.037 | 0.785 | 23.128 | 1.110 | 0.964 | 0.365 |
| Bacillariophyta | 0.019 | 0.011 | 1.748 | 21.166 | 4.900 | 0.996 | 0.459 |
| Cyanobacteria | 0.003 | 0.003 | 0.966 | 1.106 | 0.848 | 1.000 | 0.619 |
| Synurophyta | 0.000 | 0.000 | 0.000 | 0.000 | 1.000 | 0.001 | |
| Day 30 | |||||||
| Cryptophyta | 0.332 | 0.264 | 1.256 | 31.725 | 165.021 | 0.452 | 0.001 |
| Chlorophyta | 0.180 | 0.169 | 1.066 | 41.734 | 99.096 | 0.697 | 0.933 |
| Charophyta | 0.110 | 0.158 | 0.696 | 12.816 | 59.473 | 0.847 | 0.306 |
| Dinophyta | 0.095 | 0.090 | 1.055 | 2.670 | 53.407 | 0.976 | 0.058 |
| Bacillariophyta | 0.010 | 0.009 | 1.016 | 5.289 | 3.337 | 0.989 | 0.936 |
| Cyanobacteria | 0.006 | 0.005 | 1.127 | 0.250 | 3.758 | 0.998 | 0.113 |
| Euglenophyta | 0.002 | 0.003 | 0.519 | 0.835 | 0.000 | 1.000 | 0.971 |
| Synurophyta | 0.000 | 0.000 | 0.000 | 0.000 | 1.000 | 0.001 | |
| Day 38 | |||||||
| Cryptophyta | 0.230 | 0.162 | 1.420 | 4.567 | 100.140 | 0.304 | 0.001 |
| Dinophyta | 0.173 | 0.194 | 0.895 | 3.471 | 167.298 | 0.533 | 0.147 |
| Chlorophyta | 0.130 | 0.166 | 0.783 | 3.894 | 80.553 | 0.704 | 0.039 |
| Charophyta | 0.127 | 0.055 | 2.308 | 32.507 | 93.918 | 0.872 | 0.967 |
| Bacillariophyta | 0.059 | 0.047 | 1.260 | 11.421 | 31.128 | 0.950 | 0.429 |
| Cyanobacteria | 0.027 | 0.024 | 1.147 | 5.863 | 14.455 | 0.986 | 0.967 |
| Euglenophyta | 0.011 | 0.010 | 1.004 | 5.281 | 3.097 | 1.000 | 0.929 |
| Synurophyta | 0.000 | 0.000 | 0.000 | 0.000 | 1.000 | 0.001 | |
Note: The column “Average” represents the average contribution of each taxon to the overall dissimilarity between groups. “sd” is the standard deviation of the contributions of each species to the dissimilarity. “ratio” is the ratio of the average contribution to the standard deviation (average/sd). This indicates the consistency of the species' contribution to the dissimilarity. Higher ratios suggest more consistent contributions. “ava” is the average biomass of each species in group A (i.e., HW). “avb” is the average biomass of each species in group B (i.e., Control). “cumsum” is the cumulative sum of the contributions of species to the overall dissimilarity, expressed as a fraction. This shows the cumulative proportion of the total dissimilarity accounted for by the species up to that row in the table. p‐value are resulting from permutation test. Significant results (p < 0.05) are reported in bold.