The development of resistance of sea lice to delousing drugs is one of the main treats for Atlantic salmon aquaculture in Chile.
Trypsin had been recently related to drug resistance in mosquitos and therefore they could be and interesting target to enhance delousing strategies.
We were able to identify multiple transcripts of serine proteases that had strong regulation after the exposure to delousing drugs.
Developing strategies against serine proteases could improve the effectiveness of currently used drug delousing treatment.