Figure legends
Fig. 1. Map of the estimatedδ 15NBase isoscape showing the location of zooplankton sampling sites (white circles).
Fig. 2. Patterns inδ 15NBulk along the vertebral sections of sampled Japanese chum salmon (IDs: OK1–8). Vertebral bone sections (x -axis) are numbered from the center of the vertebral centrum and increase toward the margin.
Fig. 3. Estimated chum salmon migration areas. Mean presence probabilities for two salmon individuals (IDs: OK2 and OK8) at growth stages 1–10 (panels 1­–10, respectively). The color gradients (tints of orange) indicate presence probability (low to high). The grey area shows the extent of the isoscape.