Fig. 5From: A multidisciplinary approach to identify priority areas for the monitoring of a vulnerable family of fishes in Spanish Marine National ParksSchematic representation of the relationships between isotopic values (δ13C and δ15N and Syngnathus acus from CÃes Archipelago (present study) and Arcade Cove (M. Planas, unpublished observations). Samples collected in spring and summer 2016. Similarity groups (polygons) from hierarchical clustering (Ward's method) are shownBack to article page