The Science of Aquaculture Lighting
It is well known that fish and other aquatic animals are sensitive to light in their environment. Each fish species, and each developmental stage within a species, has evolved a unique response to light. Light intensity, spectrum and photoperiod have all been found to have significant affect on fish physiology and behavior. Because of this, lighting can be a powerful tool for aquaculturalists. ONCE® has developed animal-specific LED lighting systems known as AquaShift®.
The effect of lighting indoors
Using an inappropriate artificial light, or simply improperly measured light intensities, will result in the illuminance (footcandle, lux) being too high or too low. The consequences of inappropriate lighting may affect health, production and welfare of your flock due to the abnormal light-induced biological responses.
How fish perceive light
The eyes are the major light receptor organs for fish. Light in the environment stimulates photoreceptors in the retina of the fish’s eye, changes chemical signals into electrical ones that are interpreted by the fish’s brain.
However, as in many other vertebrate species, the pineal gland is also an important photoreceptor. The pineal gland is an ultrasensitive light sensor closely connected to the brain. The light stimuli it receives cues biochemical, physiological and behavioral activities of the fish on a daily and seasonal basis.
Improve Animal Welfare
As the first company to pioneer animal lighting systems based on scientific research, we’ve developed innovative solutions that improve both production and animal welfare. Our scientific discoveries have not been simple, but our relentless effort to unlock the potential of light has revolutionized the industry to where it is today.
Why Lighting is Important in Aquaculture
Why is light important?
Photoperiod manipulation via artificial lighting systems has been used in the aquaculture industry to enhance production for over 40 years. However, photoperiod is only one component of environmental lighting. The other two components, intensity and wavelength, have not yet been fully utilized because of the limitations of traditional artificial lighting sources in aquaculture.
LED lighting technologies have significantly progressed so that custom designed lighting for aquaculture species is now possible. With species-specific LED lighting, a farm manager can select specific wavelength, intensity and photoperiod in a single light source.
Photoperiods can be separated into three components:
- Length of time there is illumination in a 24- hour cycle (photoperiod length);
- The direction (increasing or decreasing) of change over time in the illumination period
- The time increments involved in the change of illumination over a specific time.
Experience a Return-On-Investment
Based on photobiology and backed up by scientific research, we have become an industry leader by focusing our efforts on finding solutions that show proven, measurable results. These results leverage three key aspects of lighting needed to experience success when raising broilers: spectrum, intensity and photoperiod.
The right light recipe
在 ONCE®, we dedicate every extra penny into researching the science of light exclusively for the agricultural market. This allows us to recommend the right lighting program that is guaranteed to simultaneously achieve your goals.
The right lighting layout
ONCE® has a team of experts who know the best solutions specific to you and your animals. They make sure you get a lighting layout with the correct light levels and placement of the lights, for free! They can also help answer questions about light recipes and surge protectors as well. Contact someone on our team today to learn more about what the right light recipe can do for you.
A sustainable solution
ED lighting has become a favored choice because they deliver a sustainable and high energy savings solution when compared to traditional lighting sources such as incandescent or fluorescent lighting.