 The specialized feeding behaviour of cleaner fish has become a valuable resource in salmon aquaculture in Atlantic Canada, Scotland, Iceland and Norway for prevention of sea lice outbreaks which benefits the economy and environment by minimizing the use of chemical delousers.Specifically cultured for this job are lumpfish ("Cyclopterus lumpus") and ballan wrasse ("Labrus bergeylta").The most common parasites that cleaner fish feed on are gnathiidae and copepod species.