Innovative permeable lice skirts reduce parasite infestation

A groundbreaking study in Chile by Austral University and Mowi Lab Chile has tested a new permeable lice skirt material, X12 fabric, developed by Indian net maker Garware Technical Fibres. This fabric effectively blocks 99.6% of nauplius-stage larvae and 99.7% of copepod-stage larvae of the Chilean louse Caligus rogercresseyi, while maintaining sufficient water flow through its 60 to 100 microns mesh designed specifically for the smaller Chilean sea lice. Used extensively in 15-meter-deep cages, the fabric eliminates the need for additional oxygenation, supporting a healthier marine environment. This innovation has led to a significant reduction in the use of chemical treatments by up to 50% and has decreased lice infestations by up to 60%, demonstrating its effectiveness and sustainability in salmon farming operations not only in Chile but also in Canada, where it's endorsed by major industry players including Cermaq Canada. Garware’s X12 is now poised for broader applications, including potential use in semi-closed containment systems, signalling a significant advancement in aquaculture parasite management. (Fishfarming expert)