Table 1.
Summary table of sediment functions.
Fig 1.
Dissolved oxygen (A,B) and redox potential (C,D) profiles of mesoscosm sediment after 35 days (A,C) and 70 days (B,D) incubation.
Error bars represent 1 standard deviation from the mean (n = 6).
Table 2.
Alpha diversity metrics for diatom assemblages at the sediment surface.
Fig 2.
Principal coordinate analysis of the beta diversity of diatom assemblages of mesocosm sediments at the sediment surface.
Ordination after standardisation of species counts and a Bray-Curtis similarity matrix. Sediment characteristics are overlaid as vectors. C. v.–C. volutator; H. d.–H. diversicolor; Mixed–Mixed infauna; MPB–Microphytobenthos only; Man. Turb.–Manual-turbation.
Fig 3.
Bacterial community composition for mesocosm sediments at 0, 15, 30 and 45 mm depths.
Taxa are at phylum level except Proteobacteria which are at class level. The community composition of the source sediment is included as T0. C. v.–C. volutator; H. d.–H. diversicolor; Mixed–Mixed infauna; MPB–Microphytobenthos only; Man. Turb.–Manual-turbation.
Fig 4.
Principal coordinate analysis of the beta diversity of bacterial community assemblages of all treatments at all depths (A) and the surface only (B) with overlaid vectors of biochemical gradients (A) and sediment function (B).
Ordination after standardisation of ASVs and a weighted Unifrac distance matrix. Redox potential and dissolved oxygen are overlaid as vectors for all sediment samples (A), and sediment characteristics are overlaid as vectors for sediment surface samples (B). C. v.–C. volutator; H. d.–H. diversicolor; Mixed–Mixed infauna; MPB–Microphytobenthos only; Man. Turb.–Manual-turbation.
Fig 5.
Relative abundance heatmap of metagenome function as predicted by PICRUSt2.
Shading indicates z score of predicted gene family abundance for Enzyme Classification (EC) numbers (rows) between samples (columns). Samples clustered using average linkage and euclidean distances between samples. Ortholog function and EC numbers are displayed on the left of the heatmap, and sum of predicted orthologs across all samples are displayed on the right. EC numbers and gene names are displayed below. Where C. v.–C. volutator; H. d.–H. diversicolor; Mixed–Mixed infauna; MPB–Microphytobenthos only; Man. Turb.–Manual turbation, and the numbers preceding indicate the depth of which samples were taken (mm).