Sea lice remain the single greatest biological challenge in salmon aquaculture. In Norway alone, the industry spends over 10 billion NOK annually fighting salmon lice.
Current treatments — chemical baths, mechanical removal, and cleaner fish — are expensive, stressful for the fish, and increasingly ineffective as lice develop resistance.
LiceDefence offers a fundamentally different approach.
Attract. Trap. Eliminate.
Specific light wavelengths (470nm and 550nm) attract free-swimming sea lice copepodites before they reach the salmon
A grid of patented traps creates a defensive barrier around the salmon cage
Low-voltage electrolysis generates chlorine from seawater, eliminating lice on contact. 100% environmentally friendly.
Developed and produced in Norway. Patented technology.
Scientifically tested at GIFAS research facility, Gildeskål 2025
The LiceDefence system was only activated 50% of the test period — results indicate even greater potential with continuous operation
— Lars Qviller, Senior Researcher, Norwegian Veterinary Institute
The LiceDefence system integrates seamlessly with existing cage infrastructure. Designed to withstand harsh ocean conditions while providing continuous, chemical-free protection.
LiceDefence is developed by Brage Innovation, based in Bergen, Norway. Our mission is to protect fish welfare through innovative, sustainable technology.
We believe the future of aquaculture lies in prevention, not treatment. By stopping sea lice before they reach the salmon, we reduce stress, improve welfare, and support a more sustainable industry.
Interested in LiceDefence? Let's talk.
