Artificial promotion of fish growth and reproduction via brain function in response to a photic environment

点击翻译按钮获取中文摘要

We found that, compared to the growth of fish under ambient lighting, the somatic growth of the barfin flounder (Verasper moseri) was stimulated by irradiation with a specific wavelength of light from a light-emitting diode (LED). The significant effects of LED light, especially green LED light, on growth promotion were observed even under low water temperature when body weight decreased because of reduced food intake during the experimental period. Our results suggest that irradiation with a specific wavelength of light could be useful in improving fish growth in aquaculture. Unexpected fluctuations were observed in the expression of hormonal genes associated with growth and feeding behavior. Thus, further experiments are necessary to understand the neuroendocrine mechanisms linking LED light and fish growth.