Journal of the Korean Society of Fisheries and Ocean Technology (수산해양기술연구)

The Korean Society of Fisheries and Ocean Technology (한국수산해양기술학회)
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Stress response of black rock fish according to adapted time in measurement of auditory threshold

청각문턱치 측정에서 순응시간에 따른 조피볼락의 스트레스 반응

  • Lee, Chang-Heon (Training vessel, College of Ocean Science, Jeju National University)
  • 이창헌 (제주대학교 해양과학대학 실습선)
  • Published : 2009.11.30
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Abstract

In order to obtain the fundamental data for the marine ranch, this paper was carried out to investigate cortisol variation in blood according to adapted time in the measurement of auditory threshold. The groups were adapted at the experimental tanks for 0.5, 1, 3 and 6 hours, respectively. At the results, cortisol concentration had a deep connection with adapted time. In particular, cortisol concentration in the experimental group of 1 hour was significantly increased, whereas others showed no difference comparing with the control group. When classical conditioning method with the sound coupled with a delayed electric shock was given after the adapted time of 1 hour and 6 hours, the rate of the conditioning completion for 6 hours was higher than that of 1 hour. Therefore, this suggests that the sufficient adapted time was required for the accurate auditory threshold.

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References

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