{"refrec":{"BRefID":137683,"RR":"<b>Dahlheim, M.E.; Awbrey, F.</b> (1982). A classification and comparison of vocalizations of captive killer whales (<i>Orcinus orca</i>). <i>J. Acoust. Soc. Am. 72(3)</i>: 661-670. <a href=\"https://dx.doi.org/10.1121/1.388246\" target=\"_blank\">https://dx.doi.org/10.1121/1.388246</a>","BEntID":131440,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>J. Acoust. Soc. Am. 72(3)</i>: 661-670. <a href=\"https://dx.doi.org/10.1121/1.388246\" target=\"_blank\">https://dx.doi.org/10.1121/1.388246</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Dahlheim, M.E.; Awbrey, F.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Dahlheim, M.E.; Awbrey, F.","Englishabstract":"An acoustical study was conducted on captive killer whales (<i>Orcinus orca</i>) to determine if individuals or groups differed in their vocalizations. Twenty-one different underwater vocalization categories produced by 13 animals were recorded within a 40 Hz to 20 kHz bandwidth. Eight acoustical variables (starting and ending frequencies of the signal, duration, harmonic interval, starting and ending frequencies of the fundamentals, and low and high concentration of energy) were measured for each vocalization. Multivariate discriminant analysis was used to determine whether individual, oceanarium, or sexual differences were detectable in their vocalizations. 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American Institute of Physics: New York.  ISSN 0001-4966; e-ISSN 1520-8524","StandardTitleSer":"The Journal of the Acoustical Society of America","ISSN":"0001-4966","AbbrevSer":"J. Acoust. Soc. 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