Spatial variability of fin whale song in the Southern California Bight Progress report

About

Fin whale song patterns were analyzed from High-frequency Acoustic Recording Package (HARP) data collected at four sites in the Southern California Bight collected between 2005 and 2014. The sites were chosen to cover both inshore (sites P and Q) and offshore (sites C and H) areas as well as southerly and northerly extent of the Bight. A single year of data, from September 2009 to September 2010, was analyzed from all sites and additional years of data were analyzed from two sites (H and C). Two days per months were selected to analyze song patterns over time. During the selected day, the start time of each 20 Hz pulse in a sequence was picked from a spectrogram and saved to a spreadsheet. After all the 20 Hz pulse start times were picked in a day, IPIs were calculated for each picked sequence