Fish Sound Characterization Using Multifractal Detrended Fluctuation Analysis
| Autor: | Bishwajit Chakraborty, G. Latha, William Fernandes, Kranthikumar Chanda, Shubham Shet, A. K. Saran |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
geography geography.geographical_feature_category biology 010604 marine biology & hydrobiology General Mathematics 0211 other engineering and technologies General Physics and Astronomy Estuary 02 engineering and technology Sciaenidae Multifractal detrended fluctuation analysis biology.organism_classification 01 natural sciences Batrachoididae Oceanography Environmental science Fish Sound (geography) 021101 geological & geomatics engineering |
| Zdroj: | Fluctuation and Noise Letters. 19:2050009 |
| ISSN: | 1793-6780 0219-4775 |
| DOI: | 10.1142/s0219477520500091 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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