Sea Lice are the most significant and widespread parasites in open sea aquaculture, causing health issues to cultured fish and a severe risk for the marine environment. The economic damage resulting from sea lice exceeds € 1 billion per year globally in reduced production and quality and pharmacological treatment costs. A European Consortium, coordinated by LG Sonic, started the LiceSonic Project to develop an environmentally friendly solution to control sea lice in open finfish production.