OPTIMISED lighting is helping fish farmers to create the perfect Yellowtail Kingfish for sushi and sashimi.
At the Kingfish Company in the Netherlands, a major supplier to Japanese restaurants, tuned LED lighting is accelerating fish growth by improving energy efficiency, optimising feed conversion and reducing costs, according to the supplier Signify.
The Philips Aquaculture photoperiodic lights are claimed to allow Kingfish to achieve as much as 30 per cent higher production.
The facility is equipped with proprietary recirculating aquaculture systems (RAS) and uses seawater and 100 per cent renewable energy.
Lighting is not only needed to see the other fish and food provided, but it is also the only way for fish to determine time and season.
Larger and deeper tanks, with fish that grow in changing water conditions, create challenges for light distribution.
Via specific developed optics, light is distributed homogenously throughout the tank, avoiding dark spots.
The electronics within the lights mimic sunrise and sunset.
The grow lights have an optimal light recipe to bring enough light within the tank, increasing visibility on the food and each other.
This is said to reduce stress, improve food conversion ratio and allow fish to grow at their best.
‘To achieve success, you must get all aspects right in the RAS, and light is one of them,’ says Kees Kloet, chief operating officer of The Kingfish Company.
‘With the world population expected to increase to 10 billion people by 2050, we also expect demand for fish-based protein to skyrocket,’ said Remco van Lansbergen, general manager for Signify Aquaculture LED solutions.
‘Fish grown in aquaculture facilities can offer an important contribution to fulfill that need, and we in turn are happy that our LED lights can help in improving the wellbeing of the fish, while also resulting in better growth and lower costs for fish farmers.’