For seasonal variations, the Chao1, Shannon and Pielou evenness indices of bacterial communities in both rhizosphere and bulk sediments showed a trend of winter > spring > autumn > summer (the pattern is regarding the mean value of those indices) (Fig. 2 AB), thus indicating that seagrass meadow samples had greater bacterial species richness and evenness in winter and lower richness and evenness in summer.
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The contribution of seasonal variations and Zostera marina presence to the bacterial community assembly of seagrass bed sediments.
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