Biodiversity of phytoplankton cyst assemblages in surface sediments of the Black Sea based on metabarcoding

Figures & data

Figure 1. Map of sampling stations.

Table 1. Number of OTUs and MPSs in the samples.

Station	OTUs	MPSs
1	284	236,194
2	277	218,788
3	438	170,800
4	491	207,412
5	721	190,821
6	721	165,967
7	301	248,521
8	748	165,804
9	565	193,550
10	666	139,855
11	419	152,752
12	714	217,956
13	463	174,627

Figure 2. Rarefaction curves showing the relationship between the numbers of MPSs and OTUs.

Figure 3. Frequency distributions for the BLAST top hit similarities with the closest reference sequences in the international nucleotide sequence databases (INSDs) for the number of OTUs and MPSs.

Figure 4. The relative abundance of phytoplankton (OTUs and MPSs) at a class level.

Figure 5. nMDS (3D) plot of sequences (taxa) distribution in the surface sediments from the three different “habitats” in the Black Sea sampled in May–June 2016 (stress 0.06): CO, coastal; SH, shelf; OS, open sea (Map of stations in Figure 1).