Correlation matrix for fundamental frequency and environmental variables. Shannon W. Ricci DelWayne R. Bohnenstiehl David B. Eggleston M. Lisa Kellogg R. Patrick Lyon 10.1371/journal.pone.0182757.g007 https://plos.figshare.com/articles/figure/Correlation_matrix_for_fundamental_frequency_and_environmental_variables_/5287513 <p>Correlations of boatwhistle call frequency (median value determined per recording) between hydrophone sites (A) and with regard to environmental time series recorded upstream of Rabbit Island East (B) and at the profiler station near Mill Point (C). Each row represents a hydrophone site (ordered by latitude, see <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0182757#pone.0182757.g001" target="_blank">Fig 1</a>). The closest hydrophone site to each water quality monitoring station is marked with a star.</p> 2017-08-08 23:49:18 unrestored oyster restoration site frequency Hz pattern water temperature Harris Creek Oyster Sanctuary oyster toadfish USA boatwhistle information Opsanus tau subtidal oyster reefs