Comparison of Information Obtained by the Method of Acoustic Identification of the Black Sea Bottlenose Dolphins (Tursiops Truncatus Ponticus Barabasch, 1940)
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Abstract
The work is devoted to the study of two local populations of the Black Sea bottlenose dolphins. Observations and acoustic recordings in the water area of the city of Sudak – Novy Svet (Crimea) were implemented all year round during 2014–2016; in the region of Gelendzhik (Krasnodar) underwater acoustic activity of dolphins was registered in June and September 2013 and 2014. In the course of research, along with visual identification of individuals, for the first time in our country the method of "acoustic identification" was used for the compiled catalog of "Signature whistles". "Signature whistles" of bottlenose dolphins are tonal signals (whistles) with a unique form of frequency contour for each dolphin and dominant in individual acoustic repertoire. In this aspect, the "signature whistles" can be regarded as a kind of "acoustic marker" of this individual. On the basis of acoustic data, the structure of the groups composing the populations under study was described, the seasonal pattern of visiting the water area by various groups was presented, and "transit" and "resident" groups were identified.
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References
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