LED illumination may benefit fish aquaculture in addition to supporting and maximizing plant development. Signify has unveiled its most recent aquaculture LED lighting invention along with a related product that enhances the production of salmon, seabass, and seabream on land and in the ocean. Additionally, decreased exposure to sea lice results from the special light dispersion, which may save treatment costs by up to 50%.
Light is a potent instrument for improving fish welfare and productivity, claims Signify. Sea lice exposure may be avoided with the proper light distribution and Philips aquaculture LED lighting's adjusted contrast ratio, which enables a reduced food conversion ratio. It also improves the wellbeing of the fish by lowering stress levels with a gradual ramp-up and low dim levels. In order to maximize the contribution to development at their peak without maturing, the light spectrum is tailored for distribution underwater, fish eye sensitivity, and pineal gland photoreceptors. To avoid spawning and to preserve their excellent flavor and texture while still developing, salmon are maintained in a constant state of summer.
The light distribution in the seacages or tanks, which is only focused downward, is unique. The downward light beam and optimal light density guarantee that the fish will swim further. Additionally, because the fish will often swim below the sealice belt, installing it below 5 meters lessens the requirement for sealice treatments. Additionally, this reduces the amount of power consumed and guarantees that no light pollution is produced. The light distribution in tanks takes care of the need of illuminating every area of the tank so that light may go to the right places without being obscured by fish or other small particles.
It is difficult to grow salmon with a high market value at minimal operating costs while keeping production levels steady. Delousing may cost up to 10% of the output of salmon raised in Norway. Furthermore, any decrease in the food conversion ratio would increase profit since 50% of operating expenses are related to fish feed.
Fish physiology research skills and the newest LED technology are combined in Philips aquaculture lighting. Signify funds PhD and post-doctoral research initiatives in partnership with top universities and institutions. This includes studies conducted at Stirling University in Scotland on on-growing and Bergen University in Norway on the effects of light spectrum, uniformity, intensity, and dimming on salmon in the hatchery stages. According to the study results, fish mortality from hatchery to on-growing stage is reduced by 15% when the illumination helps them avoid stress.
