Image_2_Vocal behavior of false killer whale (Pseudorca crassidens) acoustic subgroups.pdf

• Main Authors: Pina Gruden, Yvonne M. Barkley, Jennifer L. K. McCullough
• Format: Still Image
• Language: unknown
• Published: 2023
• Subjects: Oceanography; Marine Biology; Marine Geoscience; Biological Oceanography; Chemical Oceanography; Physical Oceanography; Marine Engineering; acoustic behavior; false killer whales; echolocation clicks; whistles; towed hydrophone array; passive acoustics; Killer Whale
• Online Access: https://doi.org/10.3389/fmars.2023.1147670.s002; https://figshare.com/articles/figure/Image_2_Vocal_behavior_of_false_killer_whale_Pseudorca_crassidens_acoustic_subgroups_pdf/22274071

Understanding the vocal behavior of cetaceans is an important component of many passive acoustic applications. This study quantifies the vocal behavior of acoustic subgroups of false killer whales (Pseudorca crassidens) from the Hawaiian Archipelago. The acoustic subgroups (N = 523) exhibit diverse vocal behavior that varies between encounters. Overall, 29% of acoustic subgroups only echolocate, 16% only whistle, and 55% emit both types of vocalizations. These results contribute important information for developing automated passive acoustic cetacean tracking, localization, and classification techniques, and thus, support future cetacean monitoring and assessment efforts.