Fig. 1

Distribution of the sampling locations in the study area. Mean density and biomass values of the P. clavata colonies are represented as different circle colours (biomass) and dimensions (density). The map was produced with QGIS1 3.28.6 (QGIS.org 2023. QGIS Geographic Information System. Open-Source Geospatial Foundation Project. http://qgis.org).