A workshop organized by the Scottish Association for Marine Science (SAMS) and the Sustainable Aquaculture Innovation Centre (SAIC) at the annual Marine Alliance for Science and Technology Scotland (MASTS) Science Conference in Glasgow focused on the challenges posed by sea lice in Scottish aquaculture. The workshop highlighted the need for improved understanding of sea lice, particularly the Lepeophtheirus salmonis species, which is detrimental to farmed fish and the environment. The event brought together stakeholders to discuss the latest research on sea lice detection and monitoring, including advances in technology such as underwater laser holography, eDNA, artificial intelligence, and fluorescent microscopy. SAMS is conducting trials to develop more accurate methods of detecting sea lice larvae in the water column, with support from the Scottish Environment Protection Agency.