Blainville’s beaked whale (Mesoplodon densirostris) echolocation clicks from autonomous passive acoustic recordings

Understanding the distribution of cetacean species and their populations
over space and time is relevant to conservation, management, and
mitigation goals. Geographic differences in acoustic signals may provide a
line of evidence for population-level discrimination in some cetacean
species. This data set of acoustic recordings collected over broad spatial
and temporal scales was used to investigate whether global variability in
echolocation click peak frequency could elucidate population structure in
Blainville’s beaked whale (Mesoplodon densirostris). It consists
of ~4.1M event detections from over 70 instrument deployments at 23 sites.