Spatial and temporal trends in fin whale vocalizations recorded in the NE Pacific Ocean between 2003-2013
Fig 10
Annual means of frequency and IPI values at the COLZA and Axial sites for the 2007–2008 and 2008–2009 calling seasons.
Station is indicated by color. Doublet A-notes are indicated by triangles, doublet B-notes are indicated by squares, and singlet A-notes are indicated by circles. Symbols have been offset horizontally from one another so that they all display.