Excerpts from Ketten NOAA TM 256 1998

Audiograms & Sound Source Levels          (figure 7)

Sound in Water vs Air                                 pg 7-9

Mammalian Hearing Mechanisms:

Functional Modelling                                  pg 20-22

Marine Mammal Ears Functional Anatomy pg 23

Middle Ear                                                  pg 24

Mechanisms of Acoustic Trauma                pg 31-40

Mitigation Methods                                     pg 41-43

Summary                                                     pg 44