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

The Korean Society of Fisheries and Ocean Technology (한국수산해양기술학회)
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The vision thresholds of nigro (Cichlasoma nigrofasciatum) on white LED light through ECG analysis

심전도 분석을 통한 백색 LED광에 대한 니그로 (Cichlasoma nigrofasciatum)의 시각역치

  • HEO, Min-A (Department of Fisheries Physics, Graduate School, Pukyong National University) ;
  • KIM, Min-Son (Department of Marine Science & Production, Kunsan National University) ;
  • SHIN, Hyeon-Ok (Division of Marine Production System Management, Pukyong National University)
  • 허민아 (부경대학교 수산물리학과) ;
  • 김민선 (군산대학교 해양생산학과) ;
  • 신현옥 (부경대학교 해양생산시스템관리학부)
  • Received : 2016.02.04
  • Accepted : 2016.02.16
  • Published : 2016.02.28
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Abstract

This study was conducted to investigate visual threshold of nigro (Cichlasoma nigrofasciatum) on white LED light. The visual threshold was obtained by analyzing electrocardiogram (ECG) of the nigro. 5 individuals (body weight: 15.62~45.49 g; TL: 8.9~12.4 cm) were trained for lights by an electric stimulus. And then the heart rate (beats/10s) before and after switching on the light were compared. Light intensity range was from 0.00 to 226.4 lux. Average heart rate was 10.36 beats/10s in the normal condition. When the fish perceived the light, the heart rate was decreased. Visual threshold of the fish was 2.59 lux.

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References

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