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    Fish Sound Characterization Using Multifractal Detrended Fluctuation Analysis

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    Fluctuat_Nois_Lett_19_2050009a.pdf (929.2Kb)
    Date
    2020
    Author
    Chanda, K.
    Shet, S.
    Chakraborty, B.
    Saran, A.K.
    Fernandes, W.A.
    Latha, G.
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    Abstract
    This work involves the application of a non-linear method, multifractal detrended fluctuation analysis (MFDFA), to describe fish sound data recorded from the open waters of two major estuarine systems. Applying MFDFA, the second-order Hurst exponent [Formula: see text] values are found to be [Formula: see text] and [Formula: see text] for the fish families Batrachoididae (common name: Toadfish) and Sciaenidae (common name: Croakers, drums), respectively. The generalized Hurst exponent [Formula: see text]-related width parameters [Formula: see text] are found to be [Formula: see text] and [Formula: see text], respectively, for toadfish and Sciaenidae vocalizations, implying greater heterogeneity and multifractal characteristics. The results suggest that the Sciaenidae fish calls are smoother in comparison with Batrachoididae. Clustering of multifractal spectrum-related parameters with respect to toadfish and Sciaenidae vocalization characteristics is observed in this analyses.
    URI
    https://doi.org/10.1142/s0219477520500091
    http://drs.nio.org/drs/handle/2264/8547
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