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

  • Received : 2016.02.04
  • Accepted : 2016.02.16
  • Published : 2016.02.28


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.


Electrocardiogram (ECG);Nigro;White LED light;Visual threshold


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Grant : LED-ICT 융합 빛 기술을 활용한 미래수해양 원천기술 개발 및 실용화

Supported by : 한국해양과학기술진흥원