Table A2a.

Comparison of S. costatum with and without K. algicida, the infection happened at day 0

Comparisons (S. costatum vs. S. costatum +K. algicida)	Size	Mean (RFU)	Std Dev	t	df	p
Day −15	3;3	325;348	18.4;19.9	−1.443	4	0.223
Day −10	3;3	2,656;2,392	631.4;130.8	0.708	4	0.518
Day −5	3;3	7,624;6,156	2,421.4;718.0	1.006	4	0.371
Day −3	3;3	11,876;11,148	369.5;1,441.5	0.846	4	0.445
Day 0	3;3	10,436;9,155	251.4;935.7	2.290	4	0.084
Day 1	3;3	9,320;6,035	550.3;1,367	3.861	4	0.018*
Day 2	3;3	8,556;2,573	318.0;575.8	15.754	4	<0.001***
Day 3	3;3	8,087;949	496.8;72.6	24.622	4	<0.001***
Day 5	3;3	6,858;852	627.2;59.7	16.511	4	<0.001***
Day 7	3;3	5,107;703	616.3;72.1	12.293	4	<0.001***
Day 10	3;3	3,747;499	526.4;77.1	10.572	4	<0.001***

Values are based on in vivo chlorophyll a fluorescence (RFU). T test performed with two‐tailed p‐values.

Level of significances:

^* p < 0.05,

^** p < 0.01,

^*** p < 0.0001.