| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
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| Outline of Final Research Achievements |
We investigated schooling behavior of the tropical non-electrogenic transparent catfish, glass catfish, and their swimming behavior under sinusoidal electrical stimulation. The schooling behavior was analyzed by a custom made software. We inferred the separation distance between fish from their schooling behavior. In the swimming behavior experiments, glass catfish avoided the sinusoidal electrical stimulation in a low frequency range. We also investigated spiking patterns of electroreceptors of glass catfish in response to the sinusoidal electrical stimulation and revealed its nonlinear characteristics. Non-periodic bursting electrical activity of nerve impulses were associated with the avoidance behavior. Further, the nonlinear property of spiking patterns were reproduced by an analog electric circuit.
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