Fig. 1: Co-occurrence networks and microeukaryotic composition at mooring F4 from 2016-08-01 to 2020-09-17.

Each network node represents an ASV, and each edge represents a similar temporal pattern of two ASVs. The edge weights correspond to the Pearson correlation coefficients determined from the comparison of the individual ASV temporal profiles. ASVs are connected if the coefficient is r > 0.7, p < 0.05. Thus, edges in this figure indicate if the temporal profiles of two nodes display a significant correlation. A Node color reflect the month in which the ASV exhibits maximal abundance, calculated from the maximum abundance mode for each year ranging from January to December. B In this representation, nodes are colored based on the community membership that was determined by the Louvain community detection algorithm. C The proportion of the top 10 taxonomic classes by cluster (“HS” high light summer, “LW” low light winter, “TS” transition spring and “TA” transition autumn). Color shades illustrate the assignment to auto- (green), mixo- (orange) or heterotroph (purple).