New research indicates sea lice management strategies should be overhauled because genetic types may vary widely from cage to cage, researchers at Norway's University of Tromso said.

This may mean that lice in different cages should receive different types of treatment.

"Our results show that the lice adapt quickly to the environment, perhaps as a result of production," said University of Tromso project manager Kim Praebel told IntraFish's TekFisk.