National Marine Fisheries Service
09/18/2024 | Press release | Distributed by Public on 09/19/2024 13:43
Bryde’s Whales Produce Biotwang Calls, Which Occur Seasonally in Long-Term Acoustic Recordings From the Central and Western North Pacific
Resources
Bryde's Whales Produce Biotwang Calls, Which Occur Seasonally in Long-Term Acoustic Recordings From the Central and Western North Pacific
September 18, 2024
Results provide evidence for a pelagic western North Pacific population of Bryde's whales with broad distribution.
In 2014, a novel call was discovered in autonomous acoustic recordings from the Mariana Archipelago and designated a "Biotwang". It was assumed to be produced by a baleen whale, but without visual verification it was impossible to assign a species. Using a combination of visual and acoustic survey data collected in the Mariana Archipelago, we determined that Biotwangs are produced by Bryde's whales.
Allen AN, Harvey M, Harrell L, Wood M, Szesciorka AR, McCullough JLK and Oleson EM2024. Bryde's whales produce Biotwang calls, which occur seasonally in long-term acoustic recordings from the central and western North Pacific Front. Mar. Sci. 11:1394695.
https://doi.org/10.3389/fmars.2024.1394695
Last updated by Pacific Islands Fisheries Science Center on 09/19/2024