Table 1.

The F-ratio and corresponding confidence level (^∗ for 95%, ^∗∗ for 99%, and ^∗∗∗ for 99.9% level) shows whether there is a significant difference between the 3 abundance levels for a given species within the treatment it was present.

			F-ratio and significance level
Medium	Species	Treatment	Illumina MiSeq	Ion Torrent
Filtered	L. salmonis	LeSa	0.275	1.047
		Mix	0.537	0.368
	P. perurans	PaPe	11.77∗∗	22.51∗∗
		Mix	3.228	5.562∗
	P. australis	AlgMix	0.420	0.584
		Mix	2.825	0.226
	P. cuspidata	AlgMix	1.348	0.2861
		Mix	4.998	6.910∗
	P. parvum	AlgMix	1.354	2.119
		Mix	5.341∗	0.5548
Unfiltered	L. salmonis	LeSa	N/A	N/A
		Mix	102.67∗∗∗	14.818∗∗
	P. perurans	PePa	34.468∗∗∗	54.006∗∗
		Mix	8.838∗	526.000∗∗∗
	P. australis	AlgMix	2.924	5.799∗
		Mix	19.838∗∗	1.178
	P. cuspidata	AlgMix	26.257∗∗	18.446∗∗
		Mix	0.997	4.137
	P. parvum	AlgMix	17.783∗∗	24.546∗∗
		Mix	0.866	16.673∗∗

Dark boxes indicate significant differences and also correct directionality of the effect meaning that an increase in the treatment abundance level corresponded to an increase in the reads that were sequenced.