Spatial and temporal trends in fin whale vocalizations recorded in the NE Pacific Ocean between 2003-2013
Fig 8
Monthly IPI peaks from KENE and Axial.
Results for (A) Singlet songs and (B) doublet songs illustrate the variations in IPI within years and from year to year. Colors indicate month from November to March, A notes are indicated by triangles, and B notes are indicated by squares.