Figure 7

Map of the Swedish Skagerrak coast showing the sampling sites. The green dots (n = 53) present sites of Z. marina meadows where surface sediment (0–5 cm) was sampled, while the yellow dots (n = 7, selected among the 53 sampling sites) show locations of sites (the deeper part of the meadows) where long sediment cores (0–60 cm) were collected. The map was generated using the ArcGIS software (v. 10.7) (https://www.esri.com).