LED light source to play a greater role in aquaculture

China is the world aquaculture superpower. 2012, Chinese fishery economic output 1.732188 trillion yuan, an increase of 15.44%; aquatic production 59,076,800 tons, an increase of 5.43% over the previous year; aquaculture area of 8,088,400 hectares, an increase of 3.23% over the previous year, the consumption of fish farming production accounts for 69.8% of world production. Currently, the demand for high-tech support aquaculture breeding patterns of industrialization on the increase, including artificial light to create a scientific environment. Light is the dominant factor of the metabolic system of fish, as the energy of light into the water ecosystem, not only inject the necessary energy for aquatic plants and animals, and can independently fish feeding, reproductive, endocrine, plays a direct or indirect influence. Modern industrial aquaculture fish light illumination is in accordance with the laws and environmental needs of aquaculture production targets, the use of artificial light to create a suitable light environment or compensate for the lack of natural light, and the regulation of growth and reproduction of fish, in order to achieve the aquaculture industry An agronomic measures of physical production of "high quality, high yield, ecological security" goals.

Currently, research on fish growth and reproductive effects of light on the relatively small, the use of aquaculture workshop extensive source of simple, no secondary lighting design factory built when the vast majority of farming. With the development of semiconductor technology, it is increasingly recognized LED artificial light as a physical means, not only can increase the efficiency of aquaculture growth, but also can promote the growth of fish, control fish gonad development, access to high-quality green food. LED is a safe, healthy and "green light", after discarding non-polluting, environmentally friendly energy. Today, LED light source has been large-scale application in plant factories, poultry, and aquaculture will also more and more applications LED artificial light, artificial light environment to achieve through aquaculture production demand function, significantly improved production efficiency and effectiveness.

According to the published literature or obtained through experimental fish circadian rhythm, feeding behavior, growth and reproductive performance of the best light environment parameters, you can determine the chip wavelength LED lamps, power and electronic control systems. Meanwhile, according to the chip package, a lens with light, exterior lighting, protection class can design the overall lighting, and produce a scientific application of LED lamps used in light environment of aquaculture.

Degree of protection should meet the design requirements, and comply with GB7000. 5-2007. Most aquaculture workshop humidity above 90%, so the lighting is relatively high water requirements, to achieve the degree of protection standard IP65, if the installation of energy-saving lamps to consider breeding pond underwater, IP rating of at least IP67 or more. Aquaculture workshop lighting installation location easy contact with people, if the fastening screws touching the live circuit boards, etc. leakage at the workshop humid environment, easily make an electric shock hazard. So the choice of lighting, one should pay attention to IP65 protection class IP is over; the second is to use isolated constant current power supply, leaving the minimum creepage distance, and the best use of centralized external power supply, centralized external power supply means using a high-power AC / DC switching power supply, unified supply.

In China, research on environmental factors on aquaculture Light fewer breeding workshop light and lighting installation is more extensive random arrangement. With the development of semiconductor technology, it is increasingly recognized as a physical means of LED light source, you can better increase aquaculture production efficiency, access to large-scale, green, high-quality fish products. If we can determine the influence of some parameters of the circadian rhythm of light, feeding behavior and reproductive performance of fish, you can use the appropriate LED light source, in accordance with national standards, according to lighting efficiency, lifetime and price compare a comprehensive technical and economic analysis correctly create a suitable environment for aquaculture requires light, LED light source to induce a greater role in the factory and efficient aquaculture industry.