Mysterious bio-duck sound attributed to the Antarctic minke whale (Balaenoptera bonaearensis)


Contact
Ilse.van.Opzeeland [ at ] awi.de

Abstract

For decades, the bio-duck sound has been recorded in the Southern Ocean, but the animal producing it has remained a mystery. Heard mainly during austral winter in the Southern Ocean, this ubiquitous sound has been recorded in Antarctic waters and contemporaneously off the Australian west coast. Here, we present conclusive evidence that the bio-duck sound is produced by Antarctic minke whales (Balaenoptera bonaerensis). We analysed data from multi-sensor acoustic recording tags that included intense bio-duck sounds as well as singular downsweeps that have previously been attributed to this species. This finding allows the interpretation of a wealth of long-term acoustic recordings for this previously acoustically concealed species, which will improve our understanding of the distribution, abundance and behaviour of Antarctic minke whales. This is critical information for a species that inhabits a difficult to access sea-ice environment that is changing rapidly in some regions and has been the subject of contentious lethal sampling efforts and ongoing international legal action.



Item Type
Article
Authors
Divisions
Primary Division
Programs
Primary Topic
Peer revision
ISI/Scopus peer-reviewed
Publication Status
Published
Eprint ID
35450
DOI 10.1098/rsbl.2014.0175

Cite as
Risch, D. , Gales, N. J. , Gedamke, J. , Kindermann, L. , Nowacek, D. P. , Read, A. J. , Siebert, U. , van Opzeeland, I. C. , Van Parijs, S. M. and Friedlaender, A. S. (2014): Mysterious bio-duck sound attributed to the Antarctic minke whale (Balaenoptera bonaearensis) , Biology Letters, 10 (201401) . doi: 10.1098/rsbl.2014.0175


Download
[img]
Preview
PDF
BiolLett-2014-Risch-.pdf

Download (631kB) | Preview
Cite this document as:

Share


Citation

Research Platforms

Campaigns


Actions
Edit Item Edit Item