METHODS Fixed passive acoustic surveys require several steps, including survey design,
placement and sometimes recovery of recording instruments, extraction of vocalizations of …

Marine dredging is an excavation activity carried out worldwide by many industries. Concern
about the impact dredging has on marine life, including marine mammals (cetaceans …

Fixed autonomous acoustic recording devices (autonomous recorders [ARs]) are defined as
any electronic recording system that acquires and stores acoustic data internally (ie, without …

The spectral and temporal properties of echolocation clicks and the use of clicks for species
classification are investigated for five species of free-ranging dolphins found offshore of …

The ability to identify delphinid vocalizations to species in real-time would be an asset
during shipboard surveys. An automated system, Real-time Odontocete Call Classification …

Background It is widely held that in toothed whales, high frequency tonal sounds
called'whistles' evolved in association with'sociality'because in delphinids they are used in a …

This study reports that killer whales, the largest dolphin, produce whistles with the highest
fundamental frequencies ever reported in a delphinid. Using wide-band acoustic sampling …

A method for the automatic classification of free-ranging delphinid vocalizations is
presented. The vocalizations of short-beaked and long-beaked common (Delphinus delphis …

The vocal repertoire of many delphinid odontocetes includes narrowband tonal whistles
used mainly for communication. The aim of this study was to describe the whistle repertoire …

Oceanic delphinids that occur in and around Navy operational areas are regularly exposed
to intense military sonar broadcast within the frequency range of their hearing. However …