Vertical scanning of beluga sonar beam.

• Main Authors: Marie J. Zahn (11414012), Kristin L. Laidre (3227658), Peter Stilz (43450), Marianne H. Rasmussen (3340494), Jens C. Koblitz (11414015)
• Format: Still Image
• Language: unknown
• Published: 2021
• Subjects: Cell Biology; Neuroscience; Physiology; Ecology; Inorganic Chemistry; wider ventral beam; narrow beam width; high source levels; div >< p; calculate sonar parameters; 212 db pp; 120 meters distance; monodon monoceros </; delphinapterus leucas </; ranging animals using; acoustic programs throughout; 4 °; showing; wild belugas (<; situ </; narwhals (<; acoustic classification; 2013 using; wild belugas; west greenland; vertically scan; two locations; sea ice; scanning behavior; results provide; results indicate; recording equipment; pack ice; may differ; linear 16; findings support; evolutionary adaptation; effectively navigate; echolocation signals; clicks centered; captive contexts; captive belugas; baffin bay; axis clicks; 42 minutes; 04 hours; Baffin Bay; Greenland; Baffin; Beluga; Beluga*; Delphinapterus leucas; Monodon monoceros; narwhal*; Sea ice
• Online Access: https://doi.org/10.1371/journal.pone.0257054.g007

Distribution of the received level (RL; represented via color spectrum) for each hydrophone for 41 clicks in 5 seconds, demonstrating vertical scanning of the array. Filled circles signify clicks where the hydrophone with the maximum RL was received by one of the outermost receivers and therefore was directed towards the edge of the array.