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

我们发现，与环境照明下鱼类的生长相比，巴氏比目鱼(Verasper Moseri)的体细胞生长是由发光二极管(LED)发出的特定波长的光照射刺激的。即使在低水温条件下，由于实验期摄食量减少导致体重下降，也能观察到LED灯，尤其是绿色LED灯的显著促生长作用。我们的结果表明，特定波长的光照射可能有助于改善水产养殖中的鱼类生长。与生长和取食行为相关的荷尔蒙基因的表达出现了意想不到的波动。因此，有必要进行进一步的实验，以了解LED光与鱼类生长之间的神经内分泌机制。

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.