Fig. 2.

Box plots showing the concentration of nutrients in sediment porewater fluids (DIN: Dissolved Inorganic Nitrogen; Phosphate and Silicate), as well as the photosynthetic efficiency (Fv/Fm), the leaf area, and the rhizome length of plants in Bouzas (A, C, E, G, I, K) and Cesantes (B, D, F, H, J, L) during the four sampling periods. Lines within the plots represent the mean value. The bottom and top boundaries of each boxplot indicate the 25th and 75th percentiles, respectively. The whiskers are the 5th and 95th percentiles, respectively. Letters in the boxes indicate significantly equal mean values within each sampling site according to the post hoc tests (p-value < 0.05). n.s: not significant differences among sampling periods