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- W2087564376 abstract "Long-term acoustical observations conducted on bottle-nosed dolphins (Tursiups truncatus ponticus) in the State Oceanarium of Ukraine as well as in the open sea revealed the existence of school specific acoustic features. It was found that each dolphin school uses a unique set of whistle contours in conjunction with a preferable frequency band and certain time characteristics. If the latter two characteristics somewhat vary according to particular surrounding and behavioral situations, the composition of normalized whistle contours stays stable. Each single whistle can be described by a set of polynomial coefficients characterizing its shape. Referring to the whole set of whistles emitted, a diagram of signal preferences can be built. Several samples will be presented to demonstrate that such diagrams represent acoustical portraits unique for every dolphin school. Based on those analyses, the development of a system for passive automatic monitoring of dolphin abundance and migration activity is in progress. The system should consist of radio-acoustical buoys placed in the sea to record signals and to transmit them to a coastal station and an automatic signal analyzer in conjunction with an expert-system capable of determining whether the respective signals belong to a school registered earlier, or a new one." @default.
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- W2087564376 date "1998-05-01" @default.
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- W2087564376 title "Identification of dolphin schools by bioacoustical unique features" @default.
- W2087564376 doi "https://doi.org/10.1121/1.422065" @default.
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