Table 2.
List of OTUs with statistically different relative abundances across the four sites.
| Mean relative abundance (%) | |||||
|---|---|---|---|---|---|
| OTU | SC1 | SC2 | SC3 | SC4 | Best SeqMatch isolate hit; accession number (% ID) |
| OTU1 | 13.8 | 21.7 | 21.5 | 12.1 | Leptolyngbya sp. LLi18; DQ786166 (97.5%) |
| OTU2 | 16.4 | 13.2 | 2.8 | 3.0 | L. antarctica ANT.L67.1; AY493572 (98.9%) |
| OTU3 | 0.5 | 7.5 | 8.6 | 9.9 | L. nostocorum UAM 387; JQ070063 (98.4%) |
| OTU4 | 7.6 | 6.8 | 0.6 | 2.4 | Calothrix sp. KVSF5; EU022730 (95.1%) |
| OTU5 | 11.9 | 3.9 | 2.7 | 0.3 | Coleofasciculus chthonoplastes EcFYyyyy00; KC463190 (95.1%) |
| OTU8 | 9.2 | 3.5 | 1.1 | 3.0 | L. subtilissima EcFYyyy700; KC463197 (99.5%) |
| OTU9 | 0.3 | 2.6 | 1.2 | 2.7 | Leptolyngbya sp. CENA112; EF088337 (96.2%) |
| OTU11 | 6.8 | 1.9 | 0.8 | 0.1 | Oscillatoria sp. PCC 7112; AB074509 (100.0%) |
| OTU12 | 1.3 | 2.5 | 6.2 | 0.3 | Stigonema ocellatum SAMA 35; GQ354275 (98.9%) |
| OTU14 | 0.2 | 3.9 | 0.1 | 0.5 | Microcoleus sp. HTT-U-KK5; EF654070 (95.1%) |
| OTU17 | 0.2 | 0.4 | 5.3 | 26.5 | Phormidium sp. CYN64; JQ687330 (98.6%) |
| OTU18 | 0.3 | 0.5 | 6.1 | 3.1 | Unidentified cyanobacterium Ni2-C1; AB275351 (93.4%) |
| OTU21 | 4.8 | 2.9 | 6.5 | 1.5 | Nostoc sp. CCAP 1453/28; HF678493 (99.5%) |
| OTU24 | 0.3 | 0.7 | 3.1 | 0.7 | Chroococcidiopsis sp. CC1; DQ914863 (98.1%) |
| OTU25 | 0.1 | 1.7 | 1.4 | 0.3 | Oscillatoria duplisecta ETS-06; AM398647 (95.6%) |
| OTU28 | 0.2 | 0.7 | 2.5 | 1.5 | L. cavernicola LF-B5; HM748318 (98.6%) |
| OTU31 | 2.1 | 0.7 | 0.1 | 0.1 | G. violaceus PCC 8105; AF132791 (92.9%) |
| OTU32 | 0.0 | 1.2 | 1.2 | 2.3 | Oscillatoriales cyanobacterium EcFYyy200; KC463201 (99.5%) |
| OTU34 | 1.7 | 0.1 | 0.5 | 1.1 | Phormidium sp. LEGE 07317; HM217043 (96.4%) |
| OTU41 | 0.0 | 0.6 | 2.2 | 1.1 | Stigonema ocellatum SAMA 35; GQ354275 (94.2%) |
| OTU52 | 0.1 | 0.2 | 1.5 | 0.8 | Chroococcidiopsis sp. CC1; DQ914863 (94.2%) |
| OTU127 | 7.7 | 1.2 | 2.7 | 2.4 | Lo. tenuis PMC304.07; GQ859652 (99.5%) |
Numbers in bold indicate OTUs with higher relative abundances in specific sites according to log-likelihood test (P < 0.05, Bonferroni-corrected).