Fig. 5

Shown are the results for three clusters of receiver sites (n = 26 receivers) created by nine metrics. The nine metrics used in the receiver-specific cluster analysis quantified average patterns of tagged Striped Bass residence and movement at each receiver location within PIE, MA, USA. (A) Receiver number (Y axis; 1–26 refer to Fig. 2C) by silhouette width (X axis) shows three clusters of receivers with Jaccard bootstrap means > 0.86. (B) Principal component analysis (PCA) of the three clusters of receivers shows cohesion within and separation across clusters. Adjacent numbers identify location identity of each receiver (1–26; refer to Fig. 2C). Symbols identify the three clusters of receivers. Cluster 1 = low-use (solid black dot; n = 17 receivers); Cluster 2 = high-use (gray square; n = 6 receivers), and Cluster 3 = variable-use (gray triangle; n = 3 receivers). Dotted lines connect the clusters to qualitatively show spatial patterns. Fifty tagged Striped Bass that were detected in PIE ≥ 30 days could visit each of the 26 receivers.