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The smoothed elemental data (otolith transect distance >500 μm from the otolith core) for sampled individuals in size class 70–90 cm projected onto the principal components from the PCA analysis of the capture points data(Fig. 7c). Points represent the barycenters by cluster of all individual fish in the sample at a given distance from the capture point, whereas solid enclosing polygons and shading represent the convex hull of all data for the corresponding cluster(i.e., for all distances from the capture point and all sampled individuals). Data are colored by cluster as in Fig. 7c. The polygons indicated by the dashed curves represent the capture point convex hulls for each cluster.
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