Table S3. Classification of Reads at Each Taxonomic Level for the MYI Community (I13 And

Table S3. Classification of reads at each taxonomic level for the MYI community (I13 and I14 combined). Taxa not previously identified in sea ice, and not found within the seawater samples of this study are in bold

Domain / Abundance / Unique sequences
unclassified / 13 / 6
Bacteria / 12336 / 946
Archaea / 3 / 3
Phylum
unclassified / 161 / 29
Proteobacteria / 8192 / 540
Bacteroidetes / 2622 / 221
Cyanobacteria / 845 / 101
Verrucomicrobia / 369 / 39
unclassified_Bacteria / 88 / 9
TM7 / 39 / 8
Actinobacteria / 34 / 6
Euryarchaeota / 2 / 2
Class
unclassified / 293 / 56
Gammaproteobacteria / 7697 / 476
Flavobacteria / 2462 / 176
Cyanobacteria / 845 / 101
Alphaproteobacteria / 471 / 52
Opitutae / 218 / 19
Verrucomicrobiae / 148 / 17
Sphingobacteria / 117 / 28
TM7_genera_incertae_sedis / 39 / 8
Actinobacteria / 34 / 6
Deltaproteobacteria / 18 / 6
Betaproteobacteria / 2 / 2
unclassified_Euryarchaeota / 2 / 2
unclassified_Bacteroidetes / 1 / 1
Bacteroidetes_incertae_sedis / 1 / 1
unclassified_Verrucomicrobia / 1 / 1
Spartobacteria / 1 / 1
unclassified_Proteobacteria / 1 / 1
Epsilonproteobacteria / 1 / 1
Order
unclassified / 2680 / 329
Pseudomonadales / 5294 / 166
Flavobacteriales / 2462 / 176
Chloroplast / 845 / 101
Rhodobacterales / 421 / 38
Puniceicoccales / 204 / 17
Verrucomicrobiales / 148 / 17
Sphingobacteriales / 117 / 28
Alteromonadales / 45 / 28
Acidimicrobidae / 31 / 3
Rickettsiales / 27 / 10
Oceanospirillales / 22 / 17
unclassified_Deltaproteobacteria / 13 / 1
Methylococcales / 13 / 4
Sphingomonadales / 7 / 2
Chromatiales / 7 / 6
Thiotrichales / 4 / 1
unclassified_Gammaproteobacteria / 3 / 2
Burkholderiales / 2 / 2
Actinobacteridae / 2 / 2
Rhodospirillales / 1 / 1
Fulvivirga / 1 / 1
Bdellovibrionales / 1 / 1
Spartobacteria_genera_incertae_sedis / 1 / 1
Campylobacterales / 1 / 1
Family
unclassified / 2910 / 384
Moraxellaceae / 5292 / 164
Flavobacteriaceae / 2422 / 167
Rhodobacteraceae / 421 / 38
Bacillariophyta / 281 / 46
Chlorophyta / 217 / 12
Puniceicoccaceae / 204 / 17
Cryptomonadaceae / 99 / 5
unclassified_Chloroplast / 95 / 11
Rubritaleaceae / 74 / 4
Verrucomicrobiaceae / 74 / 13
Saprospiraceae / 55 / 12
Cyclobacteriaceae / 38 / 4
Alteromonadaceae / 29 / 17
SAR11 / 27 / 10
Acidimicrobidae_incertae_sedis / 25 / 1
Oceanospirillaceae / 21 / 16
Methylococcaceae / 13 / 4
Cryomorphaceae / 10 / 3
Pseudoalteromonadaceae / 8 / 4
Sphingomonadaceae / 7 / 2
Granulosicoccaceae / 6 / 5
Cytophagaceae / 5 / 2
Piscirickettsiaceae / 4 / 1
Sphingobacteriaceae / 3 / 1
Pseudomonadaceae / 2 / 2
Comamonadaceae / 2 / 2
Actinomycetales / 2 / 2
Micrococcineae / 2 / 1
Acidimicrobiales / 1 / 1
Rhodospirillaceae / 1 / 1
Shewanellaceae / 1 / 1
Bacteriovoracaceae / 1 / 1
Campylobacteraceae / 1 / 1
Halomonadaceae / 1 / 1
Genus
unclassified / 3895 / 532
Psychrobacter / 5291 / 163
Polaribacter / 1962 / 99
Octadecabacter / 269 / 16
Coraliomargarita / 197 / 14
Flavobacterium / 109 / 12
Psychroflexus / 76 / 4
Rubritalea / 74 / 4
Persicivirga / 45 / 7
Lewinella / 44 / 6
Jannaschia / 37 / 4
Roseibacillus / 37 / 3
unclassified_Rhodobacteraceae / 33 / 3
Maribacter / 28 / 3
unclassified_Flavobacteriaceae / 27 / 4
Pelagibacter / 27 / 10
Algoriphagus / 26 / 2
Luteolibacter / 25 / 7
Ilumatobacter / 25 / 1
Oleispira / 20 / 15
Loktanella / 12 / 1
Methylomicrobium / 11 / 2
Cyclobacterium / 11 / 1
Pseudoalteromonas / 8 / 4
Glaciecola / 8 / 6
unclassified_Saprospiraceae / 7 / 3
unclassified_Sphingomonadaceae / 6 / 1
Granulosicoccus / 6 / 5
Marinobacter / 5 / 1
Cycloclasticus / 4 / 1
Haliea / 4 / 2
Pedobacter / 3 / 1
Ulvibacter / 3 / 2
Pseudomonas / 2 / 2
Sulfitobacter / 2 / 1
Micrococcineae / 2 / 2
Acidimicrobineae / 1 / 1
Rhodobacter / 1 / 1
Thalassobacter / 1 / 1
Sphingomonas / 1 / 1
unclassified_Rhodospirillaceae / 1 / 1
Shewanella / 1 / 1
Leeuwenhoekiella / 1 / 1
Peredibacter / 1 / 1
Owenweeksia / 1 / 1
Arcobacter / 1 / 1
Halomonas / 1 / 1