The high concentration of salmon raised in cages in fish farms leads to populations of sea lice that can not only injure the salmon, but also become a significant problem for wild salmon in the area who swim past the farms.
Sea lice are considered the single greatest challenge for the aquaculture industry. Every year, millions of dollars are spent on different ways of combating them. Traditionally, lice have been controlled with chemicals and pharmaceuticals, but in the past few years attempts have been made to develop alternative less controversial treatments.
