"To prevent the spread of the infection locality restrictions have been imposed including the prohibition against moving fish without special permission," said district chief Arne Mjs.
The site is now isolated from other farming activities. In total there are around two million fish at the site in eight cages. The fish were put into the sea in autumn 2011.
The nearest localities are Sjurelv Aquaculture AS which is 16 km away and Troms Aquaculture Research Station, which is 17 km away.
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