{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T05:51:30Z","timestamp":1790056290871,"version":"4.0.1"},"reference-count":45,"publisher":"Acoustical Society of America (ASA)","issue":"1","content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2015,7,1]]},"abstract":"<jats:p>Acoustic signals of the tiger-tail seahorse (Hippocampus comes) during feeding were studied using wavelet transform analysis. The seahorse \u201cclick\u201d appears to be a compounded sound, comprising three acoustic components that likely come from two sound producing mechanisms. The click sound begins with a low-frequency precursor signal, followed by a sudden high-frequency spike that decays quickly, and a final, low-frequency sinusoidal component. The first two components can, respectively, be traced to the sliding movement and forceful knock between the supraorbital bone and coronet bone of the cranium, while the third one (purr) although appearing to be initiated here is produced elsewhere. The seahorse also produces a growling sound when under duress. Growling is accompanied by the highest recorded vibration at the cheek indicating another sound producing mechanism here. The purr has the same low frequency as the growl; both are likely produced by the same structural mechanism. However, growl and purr are triggered and produced under different conditions, suggesting that such \u201cvocalization\u201d may have significance in communication between seahorses.<\/jats:p>","DOI":"10.1121\/1.4923153","type":"journal-article","created":{"date-parts":[[2015,7,20]],"date-time":"2015-07-20T17:00:49Z","timestamp":1437411649000},"page":"404-412","update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":9,"title":["Sound production in the tiger-tail seahorse <i>Hippocampus comes<\/i>: Insights into the sound producing mechanisms"],"prefix":"10.1121","volume":"138","author":[{"given":"A. C. O.","family":"Lim","sequence":"first","affiliation":[{"name":"University of Malaya Institute of Biological Sciences, Faculty of Science, , 50603 Kuala Lumpur, Malaysia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"V. 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