Long-term patterns of an interconnected core marine microbiota

Table 1 Description of the datasets

	OTUs	OTUs (%)	Sequence abundance (%)*
All OTUs^a	2926	100	100
Bacteria	1561	53.3	50.7
Protists	1365	46.7	49.3
Resident microbiota^b	709	100	100 (85)
Bacteria	354	49.9	53.6
Protists	355	50.1	46.4
Core microbiota^c	259	100	64.5 (54)
Bacteria	182	70.3	46.3
Protists	77	29.7	18.2
Picoplankton	109	42.1	32.4
Nanoplankton	150	57.9	32.1
Protists
Heterotroph	5	1.9	0.3
Photoautotroph	37	14.3	11.8
Parasite	21	8.1	3.5
Mixotroph	3	1.2	0.7
Symbiont	1	0.4	0.1
Unknown	11	4.3	2.0
Bacteria
Photoautotroph (cyanobacteria)	19	7.3	19.3
Non-photoautotroph^d	163	62.5	26.8
Seasonal preference core OTUs
Winter	156	60.2	21.8
Spring	24	9.3	16.4
Summer	44	17.0	8.2
Autumn	30	11.6	13.7
No seasonality	5	1.9	4.5
Seasonal subnetworks
Winter	156	60.2	21.8
Spring	19	7.3	13.7
Summer	41	15.8	6.6
Autumn	26	10.0	12.9

^*In italics the abundances relative to all OTUs are indicated. All other values in normal text indicate abundances relative to OTUs in the resident microbiota
^aNumber of OTUs in the full dataset that was left after quality control and rarefaction, which were present in at least 10% of the samples (i.e., 12 months, not necessarily consecutive)
^bOTUs present in at least 30% of the samples (i.e., 36 months, not necessarily consecutive) [= Resident microbiota]
^cOTUs included in the core network (core microbiota) with significant correlations (p < 0.001), local similarity scores > |0.7| and Spearman correlations > |0.7|, being present in at least 30% of the samples
^dIncludes non-photoautotrophic lifestyles (i.e., chemoautotrophs, photoheterotrophs, chemoheterotrophs, etc.)

ISSN: 2524-6372