Fig. 3

Map of kelp density and species distributions in 38 littoral sites in Brittany. Panels show measurements at the same sites (numbered) taken at −3, −8, and −13 m CD; the mean total kelp density is indicated by the size of the circle; the relative abundances of Saccorhiza polyschides, Laminaria hyperborea, and Laminaria ochroleuca are shown as a pie chart, with the proportions shown as light, dark, and medium gray areas, respectively; (ind/m²), number of individuals per square meter