Characterization of sounds produced by 3 sciaenid species

민어과 어류의 명음에 관한 음향학적 특성

  • Lee, Kyoung-Hoon (Fisheries Engineering Team, National Fisheries Research & Development Institute) ;
  • Yang, Yong-Soo (Fisheries Engineering Team, National Fisheries Research & Development Institute) ;
  • Kim, Jin-Ku (Resources Research Team, National Fisheries Research & Development Institute) ;
  • An, Heui-Chun (Fisheries Engineering Team, National Fisheries Research & Development Institute) ;
  • Shin, Jong-Keun (Fisheries Engineering Team, National Fisheries Research & Development Institute)
  • 이경훈 (국립수산과학원 수산공학팀) ;
  • 양용수 (국립수산과학원 수산공학팀) ;
  • 김진구 (국립수산과학원 자원연구팀) ;
  • 안희춘 (국립수산과학원 수산공학팀) ;
  • 신종근 (국립수산과학원 수산공학팀)
  • Published : 2007.08.31


The sciaenid species, which has swimbladder, generates sounds by vibrating in its length wards when spawning or getting stimulus from something else. This research analyzed on sound frequency characteristics relatives to their swimbladder length of three sciaenid species, yellow croaker(Larimichthys polyactis), brown croaker(Miichthys miiuy), and white flower croaker(Nibea albiflora). As results, the dominant frequency for yellow croaker ranged over 38.08 to 141.60Hz in wide frequency band, and the averaged pulse duration expressed in $280.3{\pm}156.0ms$. For brown croaker, the dominant frequency ranged in 49.80 to 59.57Hz, and the averaged pulse duration was $129.1{\pm}36.9ms$. Moreover, the dominant frequency of white flower croaker ranged in 73.24 to 86.91Hz, and the averaged pulse duration was $88.0{\pm}15.9ms$, it has shorter pulse duration than any two species. Therefore, the dominant frequency relatives to swimbladder length of sciaenidae showed that it had widely resonant characteristics and long pulse duration as in shorter swimbladder length. Additionally, for white flower croaker, we could confirm their behavior and sounds in response to production of recorded sounds using underwater speaker.


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