Antichi, S., Ashok, K., Pietroluongo, G., Miliou, A., Tsimpidis, T. Acoustic characteristics of Delphinus delphis and Stenella coeruleoalba based on behavior and vessel presence in the eastern Aegean Sea, Greece. 1st Conference of the African Bioacoustics Community 2018.

Introduction:

The anthropogenic noise level introduced into the marine environment has increased in the last decades and is shown as a potential impact on marine mammal ecology. The underwater noise produced by vessels dominates the range of frequencies between 20 Hz and 10 kHz. Whistles are continuous, narrowband and frequency-modulated signals used for tonal communication ranging between 5 and 20 kHz, which may overlap with the frequencies of vessels. Whistle parameters can change amongst different dolphin species and, within populations, during different behaviors.