Fig. 2: Nearshore and offshore gradients in community structure within five major microbial groups.

a–e Colors indicate the frequency that the community at each location is offshore (red, top row) or nearshore (blue, bottom row) in character. The designation of nearshore vs. offshore community is determined by the cluster whose weighted centroid is closer to the coast. The weighted centroid for each cluster is shown as a circled plus symbol in the opposite color.