Show simple item record

dc.contributor.authorHaris, K.
dc.contributor.authorChakraborty, B.
dc.contributor.authorMenezes, A.A.A.
dc.contributor.authorSreepada, R.A.
dc.contributor.authorFernandes, W.A.
dc.date.accessioned2014-11-20T07:43:09Z
dc.date.available2014-11-20T07:43:09Z
dc.date.issued2014
dc.identifier.citationJournal of the Acoustical Society of America, vol.136(4); 2014; 1972-1981
dc.identifier.otherno
dc.identifier.urihttp://drs.nio.org/drs/handle/2264/4635
dc.description.abstractNonlinear phenomena in animal vocalizations fundamentally includes known features, namely, frequency jump, subharmonics, biphonation, and deterministic chaos. In the present study, the multifractal detrended fluctuation analysis (MFDFA) has been employed to characterize the phase couplings revealed in the feeding clicks of Hippocampus kuda yellow seahorse. Theb fluctuation function F<sub>q</sub>(s), generalized Hurst exponent h(q), multifractal scaling exponent tau(q), and the multifractal spectrum f(alpha) calculated in the procedure followed were analyzed to comprehend the underlying nonlinearities in the seahorse clicks. The analyses carried out reveal long-range power-law correlation properties in the data, substantiating the multifractal behavior. The resulting delta h(q) spectru exhibits a distinct characteristic pattern in relation to the seahorse sex and size, and reveals a spectral blind spot in the data that was not possible to detect by conventional spectral analyses. The corresponding multifractal spectrum related width parameter delta h(q) is well clustered, defining the individual seahorse clicks. The highest degree of multifractality is evident in the 18 cm male seahorse, signifying greater heterogeneity. A further comparison between the seahorse body size and weight (wet) with respect to the width parameter delta h(q) and the second-order Hurst exponent h(q = 2) underscores the versatility of MFDFA as a robust statistical tool to analyze bioacoustic observations.
dc.language.isoen
dc.publisherAcoustical Society of America
dc.relation.requiresJ_Acoust_Soc_Am_136_1972.jpg
dc.rightsAn edited version of this paper was published by and © 2014 Acoustical Society of America. All efforts have been made to respect the copyright to the best of our knowledge. Inadvertent omissions, if brought to our notice, stand for correction and withdrawal of document from this repository.
dc.subjectphase coupling
dc.subjectHippocampus kuda
dc.subjectbioacoustic
dc.titleMultifractal detrended fluctuation analysis to characterize phase couplings in seahorse (Hippocampus kuda) feeding clicks.
dc.typeJournal Article


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record