Sediment grain size and hydrodynamics in Mediterranean coastal lagoons: integrated classification of abiotic parameters - Supplemental Information

The data base is composed of three hundred sediment samples (~10 cm depth), collected in the Lagoon of Lesina (L001 to L300) and three hundred collected in the Lagoon of Varano (V001 to V300), using a Van Veen grab. The samples were pre-treated with H2O2 (20 vol.%) to eliminate organic material, washed with bi-distilled water to eliminate chlorides and then oven-dried at 40 °C for 12 h. The samples were sieved for the <1 mm fraction in order to eliminate clam shells and fragments. Grain size analyses of the sediments were performed by sedimentation balance using a SediGraph 5100 (Micromeritics™) particle analyser for the sand (>63 µm) and mud (<63 µm) fractions. The mud samples were pre-treated with 6‰ Na-hexametaphosphate solution for 24 h. Entropy Group is the group classification (1 to 5) derived from the EntropyMax analysis. The grain-size results are displayed in 24 classes, from 1410-1000 to <0.5 microns. WRT= is the water residence time, in days. Depth is the water depth, in metres, at the sampling points. The projection datum is Roma 40 (Gauss-Boaga/East). The bathymetric data for both lagoons were collected during two survey campaigns in May-June 2001.