On the use of reflection coefficient phase at hydroacoustic measurements of sea ice cover thickness
https://doi.org/10.7868/S2073667318010082
Abstract
Verbal behavior of beluga whale Delphinapterus leucas acoustic ally stimulated by noise-like signal during demonstration of video images was studied. Video images were shown by an underwater monitor and acoustic stimuli were transmitted by a speaker in the frequency range up to 18 kHz. Characteristics of acoustic stimuli are presented. Demonstration of acoustic ally accompanied video images to the animal was shown to stimulate acoustic response of with a latent period of 0.5 to 1.2 seconds. Detailed acoustic response reaction of 16 s duration, consisting of 14 packages of high-frequency impulses is presented. Also presented are packages with a stable temporal structure: one package of the first type with a modulation coefficient of 0.175 ± 0.025; one package of second type with a modulation coefficient of 0.91 ± 0.03 and mixed packages consisting of two packages of the first type and other two of the first and second type packages. The conducted series of experiments clearly indicate that the acoustic reaction of the Dolphin can be interpreted as a verbal response to the video and acoustic impact.
About the Authors
M. P. Ivanov
Saint-Petersburg State University
Russian Federation
Russian Federation
A. A. Rodionov
Saint-Petersburg Department of the P.P. Shirshov Institute of Oceanology, RAS
Russian Federation
Russian Federation
Y. A. Tolmachev
Saint-Petersburg State University
Russian Federation
Russian Federation
L. E. Leonova
Saint-Petersburg State University
Russian Federation
Russian Federation
E. V. Romanovskaya
Saint-Petersburg State University
Russian Federation
Russian Federation
V. E. Stefanov
Saint-Petersburg State University
Russian Federation
Russian Federation
References
1. Janik V. M. Cognitive skills in bottlenose dolphin communication // Trends Cogn Sci. 2013 Apr; 17(4): 157-9. doi: 10.1016/j.tics.2013.02.005. Epub. 2013. Mar 18.
2. Ivanov М. П. Communication of dolphins // «Science in Russia». Russian Academy of Sciences. March-april. № 2. 2009. pp. 11-17.
3. Rodionov А. А. Learn from dolphins // «Science in Russia». Russian Academy of Sciences. March-April. №2. 2007. pp. 29-35.
4. Ivanov M. P. Dolphin’s Echolocation Signals in a Complicated Acoustic Environment // Acoustical Physics, V. 50, No. 4, 2004, pp. 469–479.
5. Finneran J. J. Dolphin “packet” use during long-range echolocation tasks // J. Acoust. Soc. Am. 2013. 133, 960 1796-1810.
6. Ivanov M. P, Stefanov V. Е. Technique of experiments for studying echolocation and communication of dolphins under the effect of man-made interference // Symposium on Bio Sonar Systems and Bio-Acoustics, Institute Acoustics, Loughborough University, 2009.
7. Ivanov M. P. The Technique of Physiological Experiments on Acoustic Communication of Dolphins // Doklady Biological Sciences, V. 423, 2008, pp. 375-378. DOI: 10.1134/S0012496608060021.
8. Belikov R. A., Bel’kovich V. M. Communicative pulsed signals of beluga whales in the reproductive gathering off Solovetskii Island in the White Sea // Acoustical Physics, 2008. 54 (1): 115–123.
9. Herman L. M., Tavolga W. N. The communication systems of cetaceans // Cetacean behavior: Mechanisms and functions // Ed. Herman, L. M. New York.: Wiley Interscience, 1980. P. 149-209.
10. Herman L. M. Vocal, social, and self-imitation by bottlenosed dolphins // In Imitation in animals and artifacts, ed. C. Nehaniv & K. Dautenhahn, Cambridge mamit Press. 2002. P. 63–108.
11. Richards D. G., James Р. W., Herman L. М. Vocal Mimicry of Computer-Generated Sounds and Vocal Labeling of Objects bу а Bottlenosed Dolphin, Tursiopstruпcatиs // Journal of Comparative Psychology, 1984. V. 98, № 1, pp.10-28.
12. Herman L. M., Morrel-Samuels P., Pack A. A. Bottlenosed dolphin and human recognition of veridical and degraded video displays of an artificial gestural language // Journal of experimental psychology: General 1990. 119. pp. 215–230.
Review
For citations:
Ivanov M.P., Rodionov A.A., Tolmachev Y.A., Leonova L.E., Romanovskaya E.V., Stefanov V.E. On the use of reflection coefficient phase at hydroacoustic measurements of sea ice cover thickness. Fundamental and Applied Hydrophysics. 2018;11(1):74-79. (In Russ.) https://doi.org/10.7868/S2073667318010082
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