Dorset Cleaner Fish
The Scottish salmon industry produces 170,000 t/yr. of salmon in sea cages along the west coast of Scotland, and in Orkney and Shetland. Sea lice infestations weaken the salmon making them more susceptible to other diseases. The lice have become resistant to various chemical treatments, the residues of which also impact on the environment when released into the sea. New biological methods of control include ‘cleanerfish’ (ballan wrasse and lumpfish) which co-habit with the salmon and feed on the lice. Dorset Cleanerfish Ltd. a joint venture with the largest salmon farming company in the world, MOWI and a local company Native Marine Centre Ltd., has been producing lumpfish since 2013. With production units in Portland Port and Castletown, the company produces 950,000 fish per year.