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Updated: Aug 23, 2026

Environmental DNA Sampling from Whale-Watching Vessels for Cetacean Monitoring
Published on: April 10, 2026
Sounds produced by Norwegian killer whales, Orcinus orca, during capture
Sofie M Van Parijs1, Teo Leyssen, Tiu Similä
1Norwegian College of Fishery Science, University of Tromsø, 9037 Tromsø, Norway. sofie@npolar.no
Abstract:
To date very little is still known about the acoustic behavior of Norwegian killer whales, in particular that of individual whales. In this study a unique opportunity was presented to document the sounds produced by five captured killer whales in the Vestfjord area, northern Norway. Individuals produced 14 discrete and 7 compound calls. Two call types were used both by individuals 16178 and 23365 suggesting that they may belong to the same pod. Comparisons with calls documented in Strager (1993) showed that none of the call types used by the captured individuals were present. The lack of these calls in the available literature suggests that call variability within individuals is likely to be large. This short note adds to our knowledge of the vocal repertoire of this population and demonstrates the need for further studies to provide behavioural context to these sounds.
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