Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2015 Sep;138(3):1696-701.
doi: 10.1121/1.4928308.

Killer whale (Orcinus orca) whistles from the western South Atlantic Ocean include high frequency signals

Artur Andriolo  1 , Sarah S Reis  1 , Thiago O S Amorim  1 , Federico Sucunza  1 , Franciele R de Castro  1 , Ygor Geyer Maia  2 , Alexandre N Zerbini  3 , Guilherme A Bortolotto  4 , Luciano Dalla Rosa  5
Affiliations

Killer whale (Orcinus orca) whistles from the western South Atlantic Ocean include high frequency signals

Artur Andriolo et al. J Acoust Soc Am. 2015 Sep.

Abstract

Acoustic parameters of killer whale (Orcinus orca) whistles were described for the western South Atlantic Ocean and highlight the occurrence of high frequency whistles. Killer whale signals were recorded on December of 2012, when a pod of four individuals was observed harassing a group of sperm whales. The high frequency whistles were highly stereotyped and were modulated mostly at ultrasonic frequencies. Compared to other contour types, the high frequency whistles are characterized by higher bandwidths, shorter durations, fewer harmonics, and higher sweep rates. The results add to the knowledge of vocal behavior of this species.

PubMed Disclaimer

Publication types

LinkOut - more resources