Figure 1

PCA analysis for species distribution in two components statistical model. (A) Scores plot and (B) loadings plot with the parameters responsible for the clusterization. 1 Chaetoceros curvisetus; 2 Chaetoceros socialis; 3 Chaetoceros affinis; 4 Thalassiosira rotula 1647; 5 Thalassiosira rotula 3264; 6 Thalassiosira weissflogii P09; 7 Thalassiosira weissflogii 1010; 8 Thalassiosira weissflogii 1336; 9 Thalassiosira pseudonana; 10 Cyclotella cryptica; 11 Skeletonema marinoi 2092; 12 Skeletonema marinoi 2052; 13 Cylindrotheca fusiformis; 14 Phaeodactylum tricornutum; 15 Pseudo-nitzschia pseudodelicatissima; 16 Ditylum brightwelli; 17 Melosira octogona; 18 Nannochloropsis salina; 19 Dunaliella salina; 20 Dunaliella tertiolecta; 21 Chlamydomonas sp.