Table A3.
Comparison of diatom growth response in non‐contact co‐cultures (± bacterial infections) were compared using t tests. Significances were obtained as p‐values from two‐tailed tests
| Size | Mean (RFU) | Std Dev | T | df | p–value | |
|---|---|---|---|---|---|---|
| S. costatum (low‐Sc/Cd); S. costatum (low‐Sc+Ka/Cd+Ka) | ||||||
| Day 1 | 5;5 | 1,803; 1,457 | 96; 96 | 5.683 | 8 | <0.001*** |
| Day 2 | 5;5 | 2,480; 1,664 | 323; 179 | 4.935 | 8 | 0.001** |
| Day 3 | 5;5 | 3,467; 1,441 | 308; 297 | 10.580 | 8 | <0.001*** |
| Day 4# | 5;5 | 4,712;1,060 | 560.5;354.1 | 12.318 | 8 | <0.001*** |
| S. costatum (high‐Sc/Cd); S. costatum (high‐Sc+Ka/Cd+Ka) | ||||||
| Day 1 | 5;5 | 4,180; 3,486 | 320; 191 | 4.169 | 8 | 0.003** |
| Day 2 | 5;5 | 5,291; 3,669 | 511; 182 | 6.687 | 8 | <0.001*** |
| Day 3# | 5;5 | 7,499; 2,947 | 748; 224 | 13.032 | 8 | <0.001*** |
| C. didymus (low‐Sc/Cd); C. didymus (high‐Sc/Cd) | ||||||
| Day 1 | 5;5 | 1,847; 1,628 | 321; 228 | 1.243 | 8 | 0.249 |
| Day 2 | 5;5 | 1,878; 1,824 | 558; 504 | 0.159 | 8 | 0.878 |
| Day 3 | 5;5 | 2,700; 2,438 | 889; 1,271 | 0.378 | 8 | 0.715 |
| Day 4 | 5;5 | 3,887; 3,388 | 1,090; 1,485 | 0.606 | 8 | 0.561 |
| Day 6 | 5;5 | 8,024; 6,896 | 2,614; 2,225 | 0.735 | 8 | 0.483 |
| Day 7 | 5;5 | 9,352; 8,827 | 2,867; 2,442 | 0.312 | 8 | 0.763 |
| Day 8 | 5;5 | 10,486; 9,806 | 2,456; 2,480 | 0.436 | 8 | 0.675 |
| Day 9 | 5;5 | 11,459; 11,141 | 2,506; 2,111 | 0.217 | 8 | 0.834 |
| Day 10 | 5;5 | 12,820; 11,604 | 2,585; 1625 | 0.890 | 8 | 0.399 |
| Day 11 | 5;5 | 15,381; 13,285 | 2,738; 2,200 | 1.334 | 8 | 0.219 |
| C. didymus (low‐Sc/Cd); C. didymus (low‐Sc+Ka/Cd+Ka) | ||||||
| Day 1 | 5;5 | 1,847;1,752 | 321;213 | 0.552 | 8 | 0.596 |
| Day 2 | 5;5 | 1,878;1,875 | 558;578 | 0.007 | 8 | 0.995 |
| Day 3 | 5;5 | 2,700;2,586 | 889.1;904.9 | 0.201 | 8 | 0.846 |
| Day 4 | 5;5 | 3,887;3,608 | 1,090;596 | 0.503 | 8 | 0.628 |
| Day 6 | 5;5 | 8,024;9,249 | 2,614;1549 | −0.902 | 8 | 0.394 |
| Day 7 | 5;5 | 9,352;12,870 | 2,867;1657 | −2.376 | 8 | 0.045* |
| Day 8 | 5;5 | 10,486;12,957 | 2,456.4;3,002.9 | −1.424 | 8 | 0.192 |
| Day 9 | 5;5 | 11,459; 14,676 | 2,506; 2,405 | −2.071 | 8 | 0.072 |
| Day 10 | 5;5 | 12,820;17,044 | 2,584.7;2,425.7 | −2.665 | 8 | 0.029* |
| Day 11 | 5;5 | 15,381; 12,939 | 2,738;10,284 | 0.513 | 8 | 0.622 |
| C. didymus (high‐Sc/Cd); C. didymus (high‐Sc+Ka/Cd+Ka) | ||||||
| Day 1 | 5;5 | 1,628;1,619 | 228.2;166.5 | 0.0735 | 8 | 0.943 |
| Day 2 | 5;5 | 1,824;1,800 | 504.4;603.5 | 0.0685 | 8 | 0.947 |
| Day 3 | 5;5 | 2,438;2,371 | 1,270.8;1,204.2 | 0.0086 | 8 | 0.934 |
| Day 4 | 5;5 | 3,388;3,179 | 1,485.4;1,498.0 | 0.222 | 8 | 0.830 |
| Day 6 | 5;5 | 6,895.9;6,038 | 2,224.8;2,951.1 | 0.519 | 8 | 0.618 |
| Day 7 | 5;5 | 8,827;7,845 | 2,442.2;3,710.1 | 0.494 | 8 | 0.634 |
| Day 8 | 5;5 | 9,806;7,908.8 | 2,479.6;4,031.0 | 0.897 | 8 | 0.396 |
| Day 9 | 5;5 | 11,141;8,250 | 2,111.3;2,364.8 | 2.040 | 8 | 0.076 |
| Day 10 | 5;5 | 11,604;8,243 | 1624.5;4,930.7 | 1.448 | 8 | 0.186 |
| Day 11 | 5;5 | 13,285;4,205 | 2,199.9;6,405.3 | 2.998 | 8 | 0.017* |
Level of significances:
#
No homogeneity of variance was observed after these days.
*
p < 0.05,
**
p < 0.01,
***
p < 0.0001.